Anti-deposition erosion-corrosion experimental device under alternating hot and cold environments

Abstract

The present invention relates to the technical field of erosion-corrosion experimental devices, and particularly to an anti-deposition erosion-corrosion experimental device in a cold and hot alternating environment, which includes a storage tank with a cavity inside; a specimen clamping device for clamping experimental specimens, and the specimen clamping device is arranged inside the cavity; and a slurry rapid exchange device which is communicated with the cavity and is used for cooling and exchanging the corrosive medium in the storage tank. An anti-deposition device is arranged in the storage tank, and the anti-deposition device is located below the specimen clamping device. The anti-deposition device is used for oscillating and adding gas to the corrosive medium to achieve uniform solid-liquid distribution of the corrosive medium in the storage tank. During use, the anti-deposition device oscillates and adds gas to the corrosive medium inside the storage tank, so that the solid medium deposited at the bottom of the corrosive medium is suspended in the medium, realizing uniform solid-liquid distribution, ensuring the erosion-corrosion of the specimen by solid particles in the slurry under the simulated real environment, and improving the experimental simulation effect.

Description

Technical Field

[0001] The invention relates to the technical field of erosion corrosion experimental devices, in particular to an anti-deposition erosion corrosion experimental device in a cold-hot alternating environment. Background Art

[0002] Sulfur dioxide is the main pollutant in the atmosphere. If it is directly discharged into the air, it will form acid rain or acid mist, which will cause great harm to the environment. Ammonia desulfurization has high desulfurization efficiency, low operating cost, and by-products can be used as raw materials for fertilizers, so it can obtain good economic benefits while desulfurizing flue gas, so it has become one of the most respected desulfurization methods. In the process of ammonia desulfurization, complex components such as sulfur dioxide, hydrochloric acid, hydrofluoric acid, sulfurous acid, and sulfuric acid will produce strong corrosion in a complex environment of acid-base alternation, hot-cold alternation, and dry-wet alternation. The room temperature pH of the concentrated section water sample tested was 4.30 (the pH was lower at the operating temperature of 110-150℃), the Cl- concentration was 6.89×104mg / L, the F- concentration was 1.06×104mg / L, and the SO42- was 2.4×7105mg / L, which is similar to a mixed solution of multiple strong acids. It is very corrosive to carbon steel. Commonly used fiberglass or glass flakes are not suitable for hydrofluoric acid environments.

[0003] At present, many thermal power plants use anti-corrosion coatings to protect the interior of desulfurization towers. However, many coatings will crack, bulge or even fall off in a large area in a short period of time under such complex corrosive environments, resulting in the failure of anti-corrosion measures. The power plant has to shut down for repairs, which not only causes huge economic losses but also poses safety hazards. Therefore, the requirements for the detection accuracy of the anti-corrosion performance of coatings are getting higher and higher. In order to simulate the corrosion environment of the sample under real working conditions, researchers have designed many erosion corrosion experimental devices.

[0004] Existing experimental devices are almost all constant temperature devices, simulating the corrosion environment at a certain temperature, and cannot simulate the temperature environment of rapid hot and cold alternation when the slurry contacts the inner wall in the real desulfurization environment. In addition, due to the long experimental cycle, the solid particles in the corrosive medium will settle at the bottom, and it is impossible to simulate the erosion and corrosion of the sample by the solid particles in the slurry in the real environment. The slurry rapid exchange device in this device can quickly exchange the high-temperature corrosive medium with the low-temperature coolant to achieve the hot and cold alternation of the ambient temperature. The dust accumulation device is installed at the bottom of the corrosion box, which can prevent solid deposition to the greatest extent, achieve uniform distribution of solid and liquid, and truly simulate the erosion and corrosion effect of solid particles on the sample, and more accurately test the true performance of the coating. Summary of the invention

[0005] The technical problem to be solved by the present invention is: in order to solve the problem that almost all existing experimental devices are constant temperature devices, which simulate the corrosion environment at a certain temperature, but cannot simulate the temperature environment of rapid hot and cold alternation when the slurry contacts the inner wall in the real desulfurization environment, and due to the long experimental cycle, the solid particles in the corrosive medium will be deposited at the bottom, and the erosion and corrosion of the sample by the solid particles in the slurry in the real environment cannot be simulated. Now, an anti-deposition erosion and corrosion experimental device in a hot and cold alternating environment is provided.

[0006] The technical solution adopted by the present invention to solve the technical problem is: an anti-deposition erosion and corrosion experimental device in a hot and cold alternating environment,

[0007] A storage box including a hollow cavity therein;

[0008] A sample clamping device, which is used to clamp the experimental sample, and the sample clamping device is arranged in the cavity;

[0009] and a slurry rapid exchange device, which is connected to the cavity and is used to cool and exchange the corrosive medium in the storage box. The storage box is provided with an anti-deposition device, which is located below the sample clamping device. The anti-deposition device is used to vibrate and aerate the corrosive medium to achieve uniform solid-liquid distribution of the corrosive medium in the storage box. Compared with the prior art, this solution uses the anti-deposition device to vibrate and aerate the corrosive medium inside the storage box, so that the solid medium deposited at the bottom of the corrosive medium is suspended in the liquid, achieving uniform solid-liquid distribution, ensuring the erosion and corrosion of the sample by solid particles in the slurry under the simulated real environment, and improving the experimental simulation effect.

[0010] Some preferred embodiments of the anti-deposition device are as follows: the anti-deposition device includes an upper clamping plate arranged in the cavity, the upper clamping plate divides the cavity into two upper and lower cavities separated from each other, the sample clamping device is arranged in the upper cavity, the upper clamping plate is provided with a first one-way medium flow mechanism for the medium to enter the upper cavity from the lower cavity, the storage box is provided with a first driving mechanism for driving the upper clamping plate to move in the cavity, and the storage box is provided with an air hole connected to the lower cavity.

[0011] In some preferred embodiments, the anti-deposition device also includes a lower clamping plate, which is arranged on the lower cavity and divides it into two mutually separated first and second cavities, and a second one-way medium flow mechanism for medium to enter the first cavity from the second cavity is provided on the lower clamping plate, the air hole is connected with the second cavity, and the lower clamping plate is connected with the first driving mechanism to each other, and realizes driving the upper clamping plate and the lower clamping plate to be relatively close or relatively far away.

[0012] In some preferred embodiments, a corrugated expansion joint is provided between the upper clamping plate and the lower clamping plate, and a sealed cavity is formed among the upper clamping plate, the lower clamping plate and the corrugated expansion joint.

[0013] In some preferred embodiments, the first driving mechanism includes a screw rod and a motor. The motor is arranged on the storage box. The screw rod is rotatably arranged on the storage box and is in transmission connection with the motor. Two sections of external threads with opposite helix directions are arranged on the screw rod, and the upper clamping plate and the lower clamping plate are respectively in threaded connection with the two sections of external threads with opposite helix directions.

[0014] In some preferred embodiments, the slurry rapid exchange device includes a slurry tank and a delivery pump. A partition plate is arranged in the slurry tank to divide the slurry tank into two separated left cavity and right cavity. The left cavity is used for containing the medium in the upper cavity, and the right cavity is used for containing the cooling medium. The input end of the delivery pump is communicated with the upper cavity. The output end of the delivery pump is respectively communicated with the left cavity and the right cavity. A reversing valve is arranged between the output end of the delivery pump and the left cavity and the right cavity. The left cavity and the right cavity are respectively communicated with the upper cavity.

[0015] In some preferred embodiments, the slurry tank is located above the storage box. A first pipeline and a second pipeline communicated with the upper cavity are respectively arranged at the bottom of the slurry tank. The first pipeline is communicated with the left cavity, and the second pipeline is communicated with the right cavity. Valves are arranged on both the first pipeline and the second pipeline.

[0016] In some preferred embodiments, a stirring rod is rotatably arranged on the slurry tank. A second driving mechanism for driving the stirring rod to rotate is arranged on the slurry tank. The stirring rod is located in the left cavity.

[0017] In some preferred embodiments, the specimen clamping device includes a rotating frame rotatably arranged on the storage box and a clamping plate detachably installed on the rotating frame. The clamping plate is used for clamping the specimen. The storage box is provided with a third driving mechanism for driving the rotating frame to rotate.

[0018] In some preferred embodiments, at least two rotating frames are provided, and the rotating directions between adjacent two rotating frames are opposite.

[0019] The beneficial effects of the present invention are as follows: When the anti-deposition erosion-corrosion experimental device under the hot and cold alternating environment of the present invention is in use, the anti-deposition device oscillates and aerates the corrosive medium inside the storage tank, so that the solid medium deposited at the bottom of the corrosive medium is suspended in the medium, realizing uniform distribution of solid and liquid, ensuring the erosion-corrosion of the sample by solid particles in the slurry under the simulated real environment, improving the experimental simulation effect, and avoiding the problem that almost all existing experimental devices are constant temperature devices, simulating the corrosion environment at a certain temperature, unable to simulate the rapid hot and cold alternating temperature environment when the slurry contacts the inner wall under the real desulfurization environment, and because of the long experimental period, the solid particles in the corrosive medium will deposit at the bottom, unable to simulate the erosion-corrosion of the sample by solid particles in the slurry under the real environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the drawings and embodiments.

[0021] Figure 1 is the three-dimensional structure schematic diagram of the present invention;

[0022] Figure 2 is the internal structure schematic diagram of the present invention;

[0023] Figure 3 is Figure 2 the partial enlarged view of A in

[0024] Figure 4 is the structure schematic diagram of the sample clamping device of the present invention.

[0025] In the figure: 1. Storage tank, 101. Cavity body, 102. Upper cavity, 103. Lower cavity, 104. First cavity, 105. Second cavity, 106. Air hole, 107. Hole;

[0026] 2. Sample clamping device, 201. Rotating frame, 202. Clamping plate, 203. Third driving mechanism;

[0027] 3. Slurry rapid exchange device, 301. Slurry tank, 302. Delivery pump, 303. Left cavity, 304. Right cavity, 305. Reversing valve, 306. First pipeline, 307. Second pipeline, 308. Valve, 309. Stirring rod, 310. Second driving mechanism, 311. Partition board;

[0028] 4. Anti-deposition device, 401. Upper clamping plate, 402. First one-way medium flow mechanism, 403. First driving mechanism, 404. Lower clamping plate, 405. Second one-way medium flow mechanism, 406. Bellows expansion joint, 407. Sealed cavity, 408. Screw rod, 409. Motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The present invention will be further described in detail below with reference to the embodiments:

[0030] The present invention is not limited to the following specific embodiments. Those of ordinary skill in the art can implement the present invention in many other specific embodiments according to the content disclosed in the present invention. Or, any simple changes or modifications made by adopting the design structure and concept of the present invention fall within the protection scope of the present invention. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0033] As Figure 1 shown, an anti-deposition erosion corrosion experiment device in a hot and cold alternating environment includes a storage tank 1 with a cavity 101 inside. There is a corrosive medium in the upper cavity 102 of the cavity 101, and a heating device and a temperature control device are arranged in the cavity 101 to control the temperature of the corrosive medium in the storage tank 1;

[0034] A specimen clamping device 2, which is used to clamp the experimental specimen, and the specimen clamping device 2 is arranged in the cavity 101;

[0035] And a slurry rapid exchange device 3, which is communicated with the cavity body 101 and is used for cooling and exchanging the corrosive medium in the storage tank 1. An anti-deposition device 4 is arranged in the storage tank 1. The anti-deposition device 4 is located below the specimen clamping device 2. The anti-deposition device 4 is used for oscillating and aerating the corrosive medium to realize the uniform distribution of solid and liquid of the corrosive medium in the storage tank 1.

[0036] Among them, the storage tank 1 is the main reaction device. The third driving mechanism 203 is a first motor. The first motor is fixedly installed on the lid above the storage tank 1 filled with the corrosive medium inside the cavity body 101. The first motor is fixed by a motor bracket. The output end of the first motor is connected to a coupling. The coupling is connected to the rotating frame 201 of the specimen clamping device 2. The slurry tank 301 is installed on one side of the storage tank 1 and above it. The transfer pump 302 here is a pressure pump. The pressure pump is installed on the platform at the lower end of the slurry tank 301.

[0037] As Figure 2 shown, the anti-deposition device 4 and the specimen clamping device 2 are installed inside the storage tank 1. The two rotating frames 201 of the specimen clamping device 2 are spaced apart. The screw rod 408 of the anti-deposition device 4 is rotatably installed at the central position of the storage tank 1 through a bearing. An air hole 106 is opened at the lower end of the storage tank 1. A hole 107 communicating with the upper cavity body 102 is opened above the storage tank 1. A one-way air valve can also be installed on the air hole 106 and the hole 107. The one-way air valve at the air hole 106 can only allow external gas to enter the second cavity 105. The one-way air valve at the hole 107 can also only discharge the gas in the upper cavity body 102, and gas cannot enter in the reverse direction.

[0038] As Figure 3As shown, due to the presence of solid particles in the corrosive medium, during the experiment, the solid particles will deposit at the bottom of the medium under the influence of their own weight, and it is impossible to simulate the erosion phenomenon of the solid particles on the specimen in the real environment, resulting in the failure of the experiment. Traditionally, the medium is stirred by a paddle to prevent the medium from depositing. Due to the separation effect of stirring, the solid particles are separated outside the specimen, and the solid particles are concentrated at a certain place of the specimen for erosion, and the other parts of the specimen cannot be experimented on, so the experimental purpose cannot be achieved. In some embodiments, the anti-deposition device 4 includes a second motor, a screw 408 with left and right-handed external threads, a first one-way medium flow mechanism 402, a bellows expansion joint 406, an upper clamping plate 401, a lower clamping plate 404, and a second one-way medium flow mechanism 405. The motor 409 is fixedly installed on the storage tank 1, and the output end of the motor 409 is connected to the screw 408 through a coupling and is used to provide power; the upper clamping plate 401 is matched with the left-handed thread of the screw 408, and the lower clamping plate 404 is matched with the right-handed thread of the screw 408. The bellows expansion joint 406 is installed in the first cavity 104 between the upper clamping plate 401 and the lower clamping plate 404 to form a sealed cavity 407. Between the upper clamping plate 401 and the inner wall of the cavity 101 on the storage tank 1, the upper clamping plate 401 divides the cavity into an upper cavity 102 and a lower cavity 103 arranged up and down, and a layer of high-strength corrosion-resistant rubber ring is wrapped between the lower clamping plate 404 and the inner wall of the lower cavity 103 on the storage tank 1 to prevent the corrosive medium from leaking; twenty-eight one-way valves are evenly distributed on the upper clamping plate 401. Here, the first one-way medium flow mechanism 402 is a one-way valve, and the one-way valve can only discharge the gas in the sealed cavity 407 into the upper cavity 102. A gas check valve is provided on the lower clamping plate 404. Here, the second one-way medium flow mechanism 405 is a gas check valve, and the gas check valve can only discharge the gas in the second cavity 105 into the sealed cavity 407; when the second motor starts to move and controls the upper clamping plate 401 and the lower clamping plate 404 to start approaching, small-amplitude oscillations will also occur when the upper clamping plate 401 and the lower clamping plate 404 are displaced, causing the solid particles to float, and at the same time squeezing the gas in the sealed cavity 407, so that the gas is discharged into the corrosive medium through the one-way valve. When the gas enters the upper cavity 102 through the one-way valve under the influence of the oscillation caused by the displacement of the upper clamping plate 401 and the lower clamping plate 404, it will have a pulse effect on the corrosive medium, causing the deposited solid particles to float. When controlling the upper clamping plate 401 and the lower clamping plate 404 to start moving away, gas is inhaled into the sealed cavity 407 through the gas check valve to complete one movement. The second cavity 105 below the lower clamping plate 404 is connected to the air hole 106 and provides gas for the gas check valve. The air hole 106 can keep the pressure in the second cavity 105 consistent with the external pressure.The anti-deposition device 4 adds gas to the upper cavity 102 by moving the upper clamp 401 back and forth, and cooperates with the micro-oscillation of the upper clamp 401 and the lower clamp 404 to achieve uniform solid-liquid distribution of the corrosive medium in the storage box 1, effectively preventing the solid particles in the slurry from depositing at the bottom, and enhancing the scouring and corrosion effect of the solid particles on the sample surface.

[0039] like Figure 4 As shown, in order to facilitate the operation of the staff and not achieve the experimental effect, the sample clamping device 2 includes a rotating frame 201, an upper rotating disc, a clamping plate 202, a sample and a lower rotating disc. The upper rotating disc and the lower rotating disc are fixed on the rotating frame 201 through a slot, and the upper rotating disc and the lower rotating disc are convenient to disassemble. The clamping plate 202 includes two oppositely arranged plate bodies, and the sample is fixed between the two plate bodies by screws. The clamping plate 202 is fixed between the upper rotating disc and the lower rotating disc, which can meet the clamping of samples of different sizes. The sample clamping device 2 is used to clamp the sample. The two rotating frames 201 are placed in parallel, but the two third driving mechanisms 203 rotate in opposite directions, so the two sample clamping devices 2 rotate in opposite directions, which not only improves the experimental efficiency but also increases the relative speed between the sample and the corrosive medium, thereby enhancing the scouring force.

[0040] The slurry rapid exchange device 3 includes a slurry tank 301, a pressure pump and a plurality of pipelines. The delivery pump 302 here is a pressure pump. A partition plate 311 is installed in the slurry tank 301, and the slurry tank 301 is divided into two independent left chambers 303 and right chambers 304. The left chamber 303 stores the derived corrosive medium and is equipped with a stirrer. The stirrer includes a stirring rod 309 and a fourth motor (a second driving mechanism 310) connected to the stirring rod 309. The fourth motor is fixedly installed on the slurry tank 301; the right chamber 304 stores coolant. When the corrosive medium in the storage tank 1 completes a cycle of high-temperature corrosion experiment, it is discharged through the pressure pump 311. The reversing valve 305 introduces the corrosive medium in the upper cavity 102 of the storage box 1 into the left cavity 303 on the slurry box 301, and then the valve 308 (control valve) on the second pipeline 307 connected to the right cavity 304 is opened. Since the slurry box 301 is located above the storage box 1, the gravitational potential energy is used to introduce it into the storage box 1. After sufficient cooling, the coolant returns to the right cavity 304 through the pressure pump and the reversing valve 305, and then the valve 308 on the first pipeline 306 is opened. The corrosive medium in the left cavity 303 returns to the storage box 1 under the action of gravity, completing a rapid exchange of slurry to achieve a rapid change in ambient temperature. The slurry rapid exchange device 3 realizes a rapid exchange of the corrosive medium in the storage box 1 with the coolant in the slurry box 301, thereby achieving a hot and cold alternation of the ambient temperature.

[0041] Based on the inspiration of the ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An anti-deposition erosion and corrosion experimental device in a hot and cold alternating environment, characterized by: It comprises a storage box (1) having a hollow cavity (101) therein; A sample clamping device (2), which is used to clamp the experimental sample, and the sample clamping device (2) is arranged in the hollow cavity (101); and a slurry rapid exchange device (3), which is in communication with the cavity (101) and is used to cool and exchange the corrosive medium in the storage box (1); an anti-deposition device (4) is provided in the storage box (1); the anti-deposition device (4) is located below the sample clamping device (2); the anti-deposition device (4) is used to oscillate and aerate the corrosive medium to achieve uniform solid-liquid distribution of the corrosive medium in the storage box (1); The anti-deposition device (4) comprises an upper clamping plate (401) arranged in the hollow cavity (101), the upper clamping plate (401) divides the hollow cavity (101) into two upper and lower cavities (102) and a lower cavity (103) separated from each other, the sample clamping device (2) is arranged in the upper cavity (102), the upper clamping plate (401) is provided with a first one-way medium flow mechanism (402) for medium to enter the upper cavity (102) from the lower cavity (103), the storage box (1) is provided with a first driving mechanism (403) for driving the upper clamping plate (401) to move in the hollow cavity (101), and the storage box (1) is provided with an air hole (106) connected with the lower cavity (103); The anti-deposition device (4) also includes a lower clamping plate (404), which is arranged on the lower cavity (103) and divides it into two mutually separated first cavities (104) and second cavities (105), and the lower clamping plate (404) is provided with a second one-way medium flow mechanism (405) for medium to enter the first cavity (104) from the second cavity (105), and the air hole (106) is connected with the second cavity (105), and the lower clamping plate (404) is connected with the first driving mechanism (403) in a transmission manner, and drives the upper clamping plate (401) and the lower clamping plate (404) to be relatively close or relatively far away, so that when the upper clamping plate (401) and the lower clamping plate (404) are displaced, a small amplitude oscillation is generated, and the solid particles float up.

2. The anti-deposition erosion-corrosion experimental device in a hot and cold alternating environment according to claim 1, characterized in that: A bellows expansion joint (406) is provided between the upper clamping plate (401) and the lower clamping plate (404), and a closed cavity (407) (407) is formed between the upper clamping plate (401), the lower clamping plate (404) and the bellows expansion joint (406).

3. The anti-deposition erosion-corrosion experimental device in a hot and cold alternating environment according to claim 1 or 2, characterized in that: The first driving mechanism (403) comprises a screw (408) and a motor (409), wherein the motor (409) is arranged on the storage box (1), the screw (408) is rotatably arranged on the storage box (1) and is in transmission connection with the motor (409), the screw (408) is provided with two sections of external threads with opposite rotation directions, and the upper clamping plate (401) and the lower clamping plate (404) are respectively threadedly connected to the two sections of external threads with opposite rotation directions.

4. The anti-deposition erosion-corrosion experimental device in a hot and cold alternating environment according to claim 1, characterized in that: The slurry rapid exchange device (3) includes a slurry tank (301) and a delivery pump (302). A partition plate (311) is provided in the slurry tank (301) to divide the slurry tank (301) into two separated left and right cavities, namely a left cavity (303) and a right cavity (304). The left cavity (303) is used to hold the medium in the upper cavity (102), and the right cavity (304) is used to hold the cooling medium. The input end of the delivery pump (302) is communicated with the upper cavity (102), and the output end of the delivery pump (302) is respectively communicated with the left cavity (303) and the right cavity (304). A reversing valve (305) is provided between the output end of the delivery pump (302) and the left cavity (303) and the right cavity (304). The left cavity (303) and the right cavity (304) are respectively communicated with the upper cavity (102).

5. The anti-deposition erosion-corrosion experimental device in a hot and cold alternating environment according to claim 4, wherein: The slurry tank (301) is located above the storage tank (1). A first pipeline (306) and a second pipeline (307) communicating with the upper cavity (102) are respectively provided at the bottom of the slurry tank (301). The first pipeline (306) is communicated with the left cavity (303), and the second pipeline (307) is communicated with the right cavity (304). Valves (308) are provided on the first pipeline (306), the second pipeline (307), the third pipeline and the fourth pipeline.

6. The anti-deposition erosion-corrosion experimental device in a hot and cold alternating environment according to claim 4, wherein: A stirring rod (309) is rotatably provided on the slurry tank (301). A second driving mechanism (310) for driving the stirring rod (309) to rotate is provided on the slurry tank (301). The stirring rod (309) is located in the left cavity (303).

7. The anti-deposition erosion-corrosion experimental device in a hot and cold alternating environment according to claim 1, characterized in that: The specimen clamping device (2) includes a rotating frame (201) rotatably provided on the storage tank (1) and a clamping plate (202) detachably installed on the rotating frame (201). The clamping plate (202) is used to clamp the specimen. The storage tank (1) is provided with a third driving mechanism (203) for driving the rotating frame (201) to rotate.

8. The anti-deposition erosion-corrosion experimental device in a hot and cold alternating environment according to claim 7, characterized in that: At least two rotating frames (201) are provided, and the rotating directions of adjacent two rotating frames (201) are opposite.

Images