A simulated multiphase flow corrosion test device

Abstract

The present invention discloses a simulated multiphase flow corrosion test device, which relates to the field of multiphase flow corrosion test, including a sliding device, a control valve, a mixing device, a voltage transformer, and a test assembly. The mixing device drives the second gear to rotate through a motor, and the second gear drives the hollow screw to rotate through the first gear and the second hollow shaft, and the hollow screw drives the corresponding control valve to lift through the mixing ball, so that the corresponding annular channel is exposed and the two adjacent mixing channels are connected to achieve free mixing of different phases. The control valve drives the compliant semicircular plate on the one-way component to flip downward when the fluid reaches a certain weight. When the compliant semicircular plate flips upward, the magnetic control sleeve limits the sliding of the magnetic control slide rod, so that the compliant semicircular plate cannot flip upward to achieve the one-way control function. The voltage transformer drives the stirring column to rotate through the second hollow shaft, and the stirring column drives the elastic baffle to oscillate, so as to achieve uniform mixing of the multiphase flow.

Description

Technical Field

[0001] The invention relates to the field of multiphase flow corrosion testing, in particular to a simulated multiphase flow corrosion testing device. Background Art

[0002] During the use of pipelines, nozzles and valves, they are often subjected to impacts of liquid, gas and solid phases, which causes corrosion damage to the inside of the pipelines, nozzles and valves, greatly reducing the service life of the pipelines, nozzles and valves; if the corrosion resistance of the pipelines, nozzles and valves is not up to standard, leakage incidents will occur; therefore, before the use of pipelines, nozzles and valves, relevant samples need to be subjected to corrosion tests.

[0003] Traditional corrosion test devices generally only consider the corrosion of a single phase such as liquid, gas or solid; however, in the actual use of pipes, nozzles and valves, they are often subject to corrosion from a mixture of multiple phases; at the same time, existing multiphase corrosion test devices still require manual control of the amount of each phase when mixing multiple phases, which is cumbersome to operate and inefficient; therefore, a simulated multiphase flow corrosion test device that can perform multiphase flow corrosion tests and automatically control the content of each phase is needed to solve the shortcomings of existing corrosion test devices.

[0004] For example, the patent with announcement number CN108398375B provides a multiphase flow erosion corrosion test device, which includes a slurry tank, a gas tank, a nozzle assembly and a scouring chamber. The gas tank and the nozzle assembly are used to mix the outflowing gas with the liquid-solid two-phase flow ejected by the solid-liquid nozzle outside the pipeline. The application cleverly uses a circulating pump to achieve uniform mixing of the scouring solid and the scouring liquid in the slurry tank, and also supplies the scouring solid and the scouring liquid in the slurry tank to the glass tube and the scouring chamber. Although this scheme can mix the liquid-solid two-phase flow with the gas, it cannot achieve free mixing between the liquid phase, the gas phase and the solid phase, and cannot more freely achieve different multiphase flow corrosion tests; in the multiphase flow corrosion test, the mixing degree between the phases in the multiphase flow will also affect the results of the corrosion test, but the scheme does not have a corresponding stirring and mixing device, and cannot change the mixing degree between the phases in the multiphase flow; the scheme also cannot synchronously adjust the flow rate of the multiphase flow while controlling the mixing degree and the type of mixing. Summary of the invention

[0005] The purpose of the present invention is to provide a simulated multiphase flow corrosion test device, which aims to solve the technical problems existing in the prior art such as how to automatically and arbitrarily mix different phases, how to change the mixing degree between phases, and how to achieve simultaneous adjustment of the mixing degree and the flow rate.

[0006] In view of the above technical problems, the technical solution adopted by the present invention is: a simulated multiphase flow corrosion test device, including a sliding device, a quantity control valve, a mixing device, a voltage transformer, and a test assembly; the sliding device is fixedly installed on the upper end of the mixing device; the mixing device is provided with a second hollow shaft, a hollow lead screw, a sliding guide rod, a mixing ball, and a switching slide; the outer cylindrical surface of the second hollow shaft is rotatably connected to the inner cylindrical surface of the hollow lead screw; the hollow lead screw is rotatably connected to the upper end of the switching slide; the sliding guide rod is fixedly installed on the upper end of the switching slide; the mixing ball is slidably installed on the outer cylindrical surface of the sliding guide rod along the vertical direction; the mixing ball also forms a threaded pair with the hollow lead screw; the quantity control valve is provided with a quantity control plug, a one-way assembly, a quantity control spring, and a quantity control slide; the quantity control slide slide is slidably installed on the outer cylindrical surface of the sliding guide rod along the vertical direction The direction slide is installed on the side of the switching slide; the two ends of the control spring are fixedly installed on the upper end of the control slider and the lower end of the mixing ball respectively; when the second hollow shaft rotates clockwise, the second hollow shaft drives the hollow screw to rotate clockwise through friction, and the hollow screw drives the mixing ball to slide upward along the sliding guide rod, and the mixing ball drives the control slider to slide upward on the switching slide through the control spring, and the switching slide drives the control valve to slide upward, and then through the single upward sliding of the one-way component, the control column will be inserted into the one-way component, thereby limiting the opening of the one-way component, and further realizing the switching of each phase mixing mode; the transformer device is fixedly installed at the lower end of the mixing device; the test component is fixedly installed at the lower end of the transformer device; the test component is also connected to the sliding device.

[0007] Furthermore, the mixing device also includes a mixing sleeve, a feed pipe, a feed cover, a first gear, a second gear, and a motor; the feed cover is fixedly installed inside the mixing sleeve; the feed pipe is fixedly installed on the upper end of the feed cover; the feed pipe is also fixedly installed on the lower end of the sliding device; the first gear is fixedly installed on the upper end of the second hollow shaft; the second gear is fixedly installed on the output end of the motor; the second gear also forms a gear pair with the first gear; the motor is fixedly installed inside the mixing sleeve; the upper end of the hollow screw is also rotatably connected to the upper end of the mixing sleeve; the upper end of the sliding guide rod is also fixedly installed on the upper end of the mixing sleeve; and the switching slide is fixedly installed inside the mixing sleeve.

[0008] Furthermore, the mixing sleeve is provided with a mixing channel, an inspection notch, an annular channel, and an annular spiral rail; the three mixing channels are distributed at the bottom of the mixing sleeve along the circumferential direction; the three mixing channels are connected through three annular channels; the annular spiral rail is fixedly installed on the inner wall of the annular channel; the inspection notch is used to facilitate the maintenance of the quantity control valve and the mixing device.

[0009] Furthermore, the switching slide is provided with a slide body, a switching slide rail, a first slot, and a second slot; the slide body is a triangular prism structure; the slide body is fixedly installed inside the mixing sleeve along the vertical direction; the switching slide rail is fixedly installed on the side of the slide body along the vertical direction; the first slot is fixedly installed on the lower half of the switching slide rail; the second slot is fixedly installed on the upper half of the switching slide rail.

[0010] Furthermore, the quantity control valve also includes a quantity control sleeve, a magnetic control component, a quantity control electric push rod, a flexible pull rod, a magnetic plug column, and a support frame; the quantity control sleeve is slidably installed in the mixing channel along the vertical direction; the quantity control plug column is fixedly installed at the upper end of the quantity control sleeve along the vertical direction; the one-way component is slidably installed in the quantity control sleeve along the vertical direction; the two ends of the magnetic control component are respectively hinged at the upper end of the one-way component and the side of the flexible pull rod; the quantity control electric push rod is fixedly installed on the side of the quantity control slider; the output end of the quantity control electric push rod is also fixedly connected to the rear end of the magnetic plug column; the magnetic plug column is slidably installed inside the quantity control slider; a permanent magnet is provided at the front end of the magnetic plug column; the quantity control slider is also slidably installed in the switching slide rail on the slide seat body along the vertical direction; the upper end of the flexible pull rod is fixedly installed at the rear end of the magnetic plug column; the lower end of the flexible pull rod is fixedly installed at the upper end of the one-way component; the two ends of the support frame are respectively fixedly installed at the lower end of the quantity control slider and the upper end of the quantity control sleeve.

[0011] Furthermore, the one-way component includes a one-way ring, a one-way sleeve, a one-way fixed plate, and a flexible semicircular plate; the one-way ring is slidably installed on the inner cylindrical surface of the control sleeve along the vertical direction; the one-way sleeve is fixedly installed on the upper end of the flexible semicircular plate; the one-way fixed plate is fixedly installed inside the one-way ring; the upper end of the one-way fixed plate is also fixedly connected to the lower end of the flexible pull rod; the flexible semicircular plate is fixedly installed on the side of the one-way fixed plate.

[0012] Furthermore, the magnetron assembly includes an electromagnet, a magnetron sleeve, and a magnetron slide rod; the upper end of the electromagnet is hinged to the side of the compliant pull rod; the magnetron sleeve is fixedly installed at the lower end of the electromagnet; the magnetron slide rod is slidably installed inside the magnetron sleeve; the lower end of the magnetron slide rod is also hinged to the upper end of the compliant semicircular plate.

[0013] Furthermore, the transformer device includes a transformer barrel, an elastic baffle, a stirring column, a lower leakage plate, a transformer sleeve, a transformer slide plate, a transformer spring, a closed sleeve, and a centrifugal push rod; the transformer barrel is fixedly installed at the lower end of the mixing sleeve along the axial direction; the lower leakage plate is fixedly installed inside the transformer barrel; the elastic baffle is fixedly installed at the upper end of the lower leakage plate along the vertical direction; the stirring column is fixedly installed on the side of the transformer sleeve along the radial direction of the transformer sleeve; the inner cylindrical surface of the transformer sleeve is fixedly connected to the upper end of the closed sleeve and the lower end of the second hollow shaft respectively; the transformer slide plate is slidably installed on the lower end of the transformer barrel along the transverse direction; the side of the transformer slide plate is also fixedly installed on the lower end of the transformer barrel through the transformer spring; the closed sleeve is fixedly installed on the lower end of the second hollow shaft through the transformer sleeve; the centrifugal push rod is slidably installed on the side of the closed sleeve along the radial direction of the closed sleeve.

[0014] Furthermore, the sliding device includes a sliding sleeve, a sliding partition, a sliding slope, a first hollow shaft, a sliding turntable, a dividing hole, and a feeding hole; three feeding holes are arranged on the sliding sleeve; the three feeding holes are respectively fixedly connected to the three feeding pipes; the three sliding partitions are evenly fixedly installed inside the sliding sleeve along the circumferential direction; the three sliding partitions also divide the internal space of the sliding sleeve into three equal-sized spaces; the three sliding slopes are respectively fixedly installed in three equal-sized spaces in the sliding sleeve; the first hollow shaft is rotatably connected to the inner cylindrical surface of the sliding sleeve; the lower end of the first hollow shaft is also fixedly connected to the upper end of the second hollow shaft; the sliding turntable is rotatably connected to the bottom of the sliding sleeve; the sliding turntable is also fixedly installed on the periphery of the first hollow shaft; a dividing hole is also arranged on the sliding turntable; when the sliding turntable is on, the dividing hole will correspond to the three feeding holes respectively.

[0015] Furthermore, the test assembly includes a load-bearing base, a test pipe, a circulating pump, and a circulating pipe; the load-bearing base is fixedly installed on the lower end of the transformer barrel in the vertical direction; the test pipe is slidably installed inside the load-bearing base in the vertical direction; the lower end of the test pipe is fixedly connected to the upper end of the circulating pump; the circulating pump is fixedly installed on the bottom of the load-bearing base; the circulating pump is also connected to the upper end of the first hollow shaft through the circulating pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) The mixing device drives the second gear to rotate through the motor, and the second gear drives the hollow screw to rotate through the first gear and the second hollow shaft, and the hollow screw drives the corresponding control valve to lift through the mixing ball, so that the corresponding annular channel is exposed and the two adjacent mixing channels are connected to achieve free mixing of different phases. (2) The control valve drives the flexible semicircular plate on the one-way component to flip downward when the fluid reaches a certain weight. When the flexible semicircular plate flips upward, the magnetic control sleeve restricts the sliding of the magnetic control slide rod, so that the flexible semicircular plate cannot flip upward to achieve the one-way control function. (3) The transformer drives the stirring column to rotate through the second hollow shaft, and the stirring column drives the elastic baffle to oscillate, so as to achieve uniform mixing of multiphase flow. (4) The transformer device also drives the closed sleeve to rotate through the second hollow shaft. The closed sleeve drives the centrifugal push rod to be thrown outward through the centrifugal force. When the speed of the closed sleeve is faster, the distance the centrifugal push rod is thrown outward is greater, and the distance the centrifugal push rod drives the transformer slide plate to slide outward is greater, so that the flow rate of the multiphase flow passing between the two transformer slide plates increases. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the general assembly structure of the working state of an embodiment of the present invention.

[0018] Figure 2 The structure of the sliding device of the present invention is shown in FIG. Figure 1 .

[0019] Figure 3 This is a second structural diagram of the sliding device of the present invention.

[0020] Figure 4 The structure of the volume control valve of the present invention is shown in FIG. Figure 1 .

[0021] Figure 5 The structure of the volume control valve of the present invention is shown in FIG. Figure 2 .

[0022] Figure 6 It is a structural schematic diagram of the connection relationship between the unidirectional component and the magnetic control component of the present invention.

[0023] Figure 7 It is a schematic structural diagram of the mixing device of the present invention.

[0024] Figure 8 It is a schematic diagram of the parts structure of the mixing sleeve of the present invention.

[0025] Fig. 9 This is a schematic diagram of the parts structure of the switching slide of the present invention.

[0026] Fig.10 The structure of the transformer of the present invention is shown in FIG. Figure 1 .

[0027] Fig.11 The structure of the transformer of the present invention is shown in FIG. Figure 2 .

[0028] Fig.12 It is a schematic diagram of the structure of the test assembly of the present invention.

[0029] In the figure: 1-sliding device; 2-control valve; 3-mixing device; 4-pressure changing device; 5-testing assembly; 101-sliding sleeve; 102-sliding baffle; 103-sliding slope; 104-first hollow shaft; 105-sliding turntable; 106-distributing hole; 107-feeding hole; 201-control sleeve; 202-control column; 203-unidirectional assembly; 204-magnetic control assembly 205-control electric push rod; 206-control spring; 207-control slider; 208-flexible pull rod; 209-magnetic plug column; 210-support frame; 211-one-way ring; 212-one-way sleeve; 213-one-way fixing plate; 214-flexible semicircular plate; 215-electromagnet; 216-magnetic control sleeve; 217-magnetic control slider; 301-mixing sleeve; 302-inlet Material pipe; 303-feed cover; 304-first gear; 305-second hollow shaft; 306-second gear; 307-motor; 308-hollow screw; 309-sliding guide rod; 310-mixing ball; 311-switching slide; 312-mixing channel; 313-inspection gap; 314-annular channel; 315-annular spiral rail; 316-slide body; 317-switching slide rail; 318-first slot; 319-second slot; 401-transformer barrel; 402-elastic baffle; 403-stirring column; 404-lower leakage plate; 405-transformer sleeve; 406-transformer slide plate; 407-transformer spring; 408-closed sleeve; 409-centrifugal push rod; 501-load-bearing base; 502-test pipeline; 503-circulation pump; 504-circulation pipeline. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0031] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0032] Figures 1 to 12 It is a preferred embodiment of the present invention.

[0033] like Figure 1As shown, the sliding device 1 is fixedly mounted on the upper end of the mixing device 3; the mixing device 3 is provided with a second hollow shaft 305, a hollow screw 308, a sliding guide rod 309, a mixing ball 310, and a switching slide seat 311; the outer cylindrical surface of the second hollow shaft 305 is rotatably connected to the inner cylindrical surface of the hollow screw 308; the hollow screw 308 is rotatably connected to the upper end of the switching slide seat 311; the sliding guide rod 309 is fixedly mounted on the upper end of the switching slide seat 311; the mixing ball 310 is slidably mounted on the outer cylindrical surface of the sliding guide rod 309 in the vertical direction; the mixing ball 310 also forms a threaded pair with the hollow screw 308; the control valve 2 is provided with a control column 202, a one-way component 203, a control spring 206, and a control slider 207; the control slider 207 is slidably mounted on the side of the switching slide seat 311 in the vertical direction; the two ends of the control spring 206 are They are fixedly mounted on the upper end of the control slider 207 and the lower end of the mixing ball 310; when the second hollow shaft 305 rotates clockwise, the second hollow shaft 305 drives the hollow screw 308 to rotate clockwise through friction, and the hollow screw 308 drives the mixing ball 310 to slide upward along the sliding guide rod 309, and the mixing ball 310 drives the control slider 207 to slide upward on the switching slide 311 through the control spring 206, and the switching slide 311 drives the control valve 2 to slide upward, and then through the single upward sliding of the one-way component 203, the control column 202 will be inserted into the one-way component 203, thereby limiting the opening of the one-way component 203, and further realizing the switching of each phase mixing mode; the transformer 4 is fixedly mounted on the lower end of the mixing device 3; the test component 5 is fixedly mounted on the lower end of the transformer 4; the test component 5 is also connected to the sliding device 1.

[0034] like Figure 2 and Figure 3 As shown, in the sliding device 1, three feed holes 107 are provided on the sliding sleeve 101; the three feed holes 107 are respectively fixedly connected to the three feed pipes 302; three sliding baffles 102 are evenly fixedly installed inside the sliding sleeve 101 along the circumferential direction; the three sliding baffles 102 also divide the internal space of the sliding sleeve 101 into three spaces of equal size; three sliding ramps 103 are respectively fixedly installed in three spaces of equal size in the sliding sleeve 101 In the middle; the first hollow shaft 104 is rotatably connected to the inner cylindrical surface of the sliding sleeve 101; the lower end of the first hollow shaft 104 is also fixedly connected to the upper end of the second hollow shaft 305; the sliding turntable 105 is rotatably connected to the bottom of the sliding sleeve 101; the sliding turntable 105 is also fixedly installed on the periphery of the first hollow shaft 104; a material distribution hole 106 is also provided on the sliding turntable 105; when the sliding turntable 105 is on, the material distribution hole 106 will correspond to the three feeding holes 107 respectively.

[0035] like Figure 4 and Figure 5As shown, in the control valve 2, the control sleeve 201 is slidably installed in the mixing channel 312 along the vertical direction; the control plug 202 is fixedly installed at the upper end of the control sleeve 201 along the vertical direction; the one-way component 203 is slidably installed in the control sleeve 201 along the vertical direction; the two ends of the magnetic control component 204 are respectively hinged at the upper end of the one-way component 203 and the side of the flexible pull rod 208; the control electric push rod 205 is fixedly installed on the side of the control slider 207; the output end of the control electric push rod 205 is also connected to the magnetic plug 209 The rear end is fixedly connected; the magnetic plug post 209 is slidably installed inside the control slider 207; a permanent magnet is provided at the front end of the magnetic plug post 209; the control slider 207 is also slidably installed in the switching slide rail 317 on the slide body 316 along the vertical direction; the upper end of the flexible pull rod 208 is fixedly installed on the rear end of the magnetic plug post 209; the lower end of the flexible pull rod 208 is fixedly installed on the upper end of the one-way component 203; the two ends of the support frame 210 are respectively fixedly installed on the lower end of the control slider 207 and the upper end of the control sleeve 201.

[0036] like Figure 6 As shown, in the one-way component 203, the one-way ring 211 is slidably installed on the inner cylindrical surface of the control sleeve 201 along the vertical direction; the one-way sleeve 212 is fixedly installed on the upper end of the flexible semicircular plate 214; the one-way fixing plate 213 is fixedly installed inside the one-way ring 211; the upper end of the one-way fixing plate 213 is also fixedly connected to the lower end of the flexible pull rod 208; the flexible semicircular plate 214 is fixedly installed on the side of the one-way fixing plate 213.

[0037] like Figure 6 As shown, in the magnetron assembly 204, the upper end of the electromagnet 215 is hinged to the side of the flexible pull rod 208; the magnetron sleeve 216 is fixedly installed at the lower end of the electromagnet 215; the magnetron slide 217 is slidably installed inside the magnetron sleeve 216; the lower end of the magnetron slide 217 is also hinged to the upper end of the flexible semicircular plate 214.

[0038] like Figure 7 , Figure 8 and Fig. 9As shown, in the mixing device 3, the feed cover 303 is fixedly mounted inside the mixing sleeve 301; the feed pipe 302 is fixedly mounted on the upper end of the feed cover 303; the feed pipe 302 is also fixedly mounted on the lower end of the sliding device 1; the first gear 304 is fixedly mounted on the upper end of the second hollow shaft 305; the second gear 306 is fixedly mounted on the output end of the motor 307; the second gear 306 also forms a gear pair with the first gear 304; the motor 307 is fixedly mounted inside the mixing sleeve 301; the upper end of the hollow screw 308 is also rotatably connected to the upper end of the mixing sleeve 301; the upper end of the sliding guide rod 309 is also fixedly mounted on the upper end of the mixing sleeve 301; the switching slide 311 is fixedly mounted inside the mixing sleeve 301; the mixing sleeve 301 is provided with a mixing channel 312, an inspection notch 313, and an annular channel 314 , annular spiral rail 315; three mixing channels 312 are distributed at the bottom of the mixing sleeve 301 along the circumferential direction; the three mixing channels 312 are connected by three annular channels 314; the annular spiral rail 315 is fixedly installed on the inner wall of the annular channel 314; the maintenance notch 313 is used to facilitate the maintenance of the control valve 2 and the mixing device 3; the switching slide 311 is provided with a slide body 316, a switching slide rail 317, a first slot 318, and a second slot 319; the slide body 316 is a triangular prism structure; the slide body 316 is fixedly installed inside the mixing sleeve 301 in the vertical direction; the switching slide rail 317 is fixedly installed on the side of the slide body 316 in the vertical direction; the first slot 318 is fixedly installed on the lower half of the switching slide rail 317; the second slot 319 is fixedly installed on the upper half of the switching slide rail 317.

[0039] like Fig.10 and Fig.11 As shown, in the transformer device 4, the transformer barrel 401 is fixedly installed at the lower end of the mixing sleeve 301 along the axial direction; the lower leakage plate 404 is fixedly installed inside the transformer barrel 401; the elastic baffle 402 is fixedly installed at the upper end of the lower leakage plate 404 along the vertical direction; the stirring column 403 is fixedly installed on the side of the transformer sleeve 405 along the radial direction of the transformer sleeve 405; the inner cylindrical surface of the transformer sleeve 405 is fixedly connected to the upper end of the closed sleeve 408 and the lower end of the second hollow shaft 305 respectively; the transformer slide plate 406 is slidably installed at the lower end of the transformer barrel 401 along the transverse direction; the side of the transformer slide plate 406 is also fixedly installed at the lower end of the transformer barrel 401 through the transformer spring 407; the closed sleeve 408 is fixedly installed at the lower end of the second hollow shaft 305 through the transformer sleeve 405; the centrifugal push rod 409 is slidably installed on the side of the closed sleeve 408 along the radial direction of the closed sleeve 408.

[0040] like Fig.12As shown, in the test assembly 5, the load-bearing base 501 is fixedly installed on the lower end of the transformer barrel 401 in the vertical direction; the test pipe 502 is slidably installed inside the load-bearing base 501 in the vertical direction; the lower end of the test pipe 502 is fixedly connected to the upper end of the circulation pump 503; the circulation pump 503 is fixedly installed on the bottom of the load-bearing base 501; the circulation pump 503 is also connected to the upper end of the first hollow shaft 104 through the circulation pipe 504.

[0041] Working principle of the present invention: Figure 1 The usage and corresponding scenarios of the present invention are given. The posture control of the multiphase flow corrosion test process is determined by the quantity control valve 2, the mixing device 3, and the pressure transformer 4. The posture of the quantity control valve 2 is determined by the mixing device 3, and the posture of the pressure transformer 4 is determined by the mixing device 3. Therefore, the mixing device 3 is the core of the multiphase flow corrosion test process.

[0042] Taking Example 1 as an example, first pour the three phases of test materials into three equal-sized spaces of the sliding sleeve 101, then the motor 307 on the mixing device 3 drives the second gear 306 to rotate, the second gear 306 rotates through the first gear 304 and the second hollow shaft 305, the second hollow shaft 305 drives the sliding turntable 105 to rotate through the first hollow shaft 104, so that the dividing holes 106 on the sliding turntable 105 correspond to the three feeding holes 107 respectively, allowing the corresponding materials to fall into the corresponding quantity control valve 2 through the feeding pipe 302; before the material falls from the sliding device 1 into the quantity control valve 2, the second hollow shaft 305 will also drive the hollow lead screw 308 to rotate clockwise through friction, the hollow lead screw 308 drives the mixing ball 310 to move upward, and the mixing ball 310 drives the corresponding quantity control valve 2 to lift, so that the corresponding annular channel 314 is exposed and the two adjacent ones are interlocked. The mixing channel 312 is connected, and the one-way component 203 corresponding to the phase that does not need to be mixed will drive the one-way component 203 to be lifted by the forward extension of the magnetic suction plug 209, so that the one-way sleeve 212 of the one-way component 203 is inserted into the control plug 202, thereby limiting the downward flipping of the flexible semicircular plate 214, thereby realizing the closing function of the one-way component 203; when the corresponding material in the control valve 2 reaches a certain weight, it will drive the flexible semicircular plate 214 on the one-way component 203 to flip downward, thereby leaking the material into the mixing channel 312 and the transformer 4, when the material in the mixing channel 312 drives the flexible semicircular plate 214 to flip upward to a horizontal state, when the magnetic control slide 217 is completely retracted into the magnetic control sleeve 216, the magnetic control sleeve 216 will limit the magnetic control slide 217 from sliding upward, thereby preventing the flexible semicircular plate 214 from continuing to flip upward, thereby realizing the one-way control function. When the material enters the transformer barrel 401 and the mixing channel 312 of the transformer 4, the second hollow shaft 305 drives the stirring column 403 to rotate through the transformer sleeve 405, and the stirring column 403 drives the elastic baffle 402 to oscillate, so that the materials of multiple phases are mixed and stirred with each other. At the same time, the material in the mixing channel 312 will rotate and flow in the annular spiral track 315 in the annular channel 314, thereby accelerating the mixing efficiency of the multi-phase flow and changing the mixing degree; at the same time, the second hollow shaft 305 drives the closed sleeve 408 to rotate, and the closed sleeve 408 drives the centrifugal push rod 409 to be thrown outward by the centrifugal force. The faster the rotation speed of the sleeve 408 is, the greater the distance the centrifugal push rod 409 is thrown outward, and the greater the distance the centrifugal push rod 409 drives the transformer slide plate 406 to slide outward, so that the flow rate of the multiphase flow through the two transformer slide plates 406 increases; then the mixed multiphase fluid will enter the test pipe 502 of the test assembly 5, and then enter the first hollow shaft 104 through the circulation pump 503 and the circulation pipe 504, and then enter the second hollow shaft 305 through the first hollow shaft 104, and then flow into the transformer barrel 401 from the side of the lower end of the second hollow shaft 305 to realize the circulation impact corrosion function.

[0043] Specifically, Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, first, three phases of test materials are poured into three equal-sized spaces in the sliding sleeve 101 divided by three sliding partitions 102, and then the motor 307 in the mixing sleeve 301 drives the second gear 306 to rotate, and the second gear 306 rotates through the first gear 304 and the second hollow shaft 305, and the second hollow shaft 305 drives the sliding turntable 105 to rotate through the first hollow shaft 104, so that the dividing holes 106 on the sliding turntable 105 correspond to the three feeding holes 107 respectively, so that the corresponding materials fall into the corresponding quantity control valve 2 through the feeding holes 107 and the feeding pipe 302 to realize the feeding function; before the material falls into the quantity control sleeve 201 of the quantity control valve 2, the quantity control electric push rod 205 drives the magnetic suction When the plug 209 is pulled out of the first slot 318, the second hollow shaft 305 will also drive the hollow screw 308 above the switching slide 311 to rotate clockwise through friction, and the hollow screw 308 drives the mixing ball 310 to move upward on the sliding guide rod 309. The mixing ball 310 drives the corresponding support frame 210 and the control sleeve 201 to be lifted through the control spring 206 and the control slider 207, so that the corresponding annular channel 314 is exposed and connects the two adjacent mixing channels 312. At this time, the control slider 207 is just lifted to the limit position; the control valve 2 corresponding to the phase that does not need mixing will drive the magnetic plug 209 to be inserted into the corresponding second slot 319 through the retraction of the control electric push rod 205, and The sliding seat body 316 is magnetically attracted together. At this time, the magnetic attraction plug 209 also drives the one-way ring 211 and the one-way fixed plate 213 to be lifted upward through the flexible pull rod 208, so that the one-way sleeve 212 is inserted into the control plug 202. At this time, the control plug 202 restricts the one-way sleeve 212 and the flexible semicircular plate 214 from turning downward to realize the closing function of the one-way component 203; when the corresponding material on the one-way component 203 reaches a certain weight, it will drive the flexible semicircular plate 214 on the side of the one-way fixed plate 213 to turn downward, thereby leaking the material into the mixing channel 312 and the transformer 4 to realize the corresponding phase leakage mixing function; when the material in the mixing channel 312 drives the flexible semicircular plate 214 to turn upward to a horizontal state When the magnetic control slide bar 217 on the magnetic control assembly 204 is fully retracted into the magnetic control sleeve 216, the magnetic control sleeve 216 will restrict the magnetic control slide bar 217 from sliding upward, so that the flexible semicircular plate 214 cannot continue to flip upward, thereby realizing the one-way quantity control function; when the material is poured into the sliding sleeve 101, the sliding slope 103 is used to guide the material to flow into the material distribution hole 106; the electromagnet 215 on the magnetic control assembly 204 will generate an attraction force on the magnetic control slide bar 217. When the strength of the attraction force is controlled, the weight required for the flexible semicircular plate 214 to flip downward will be changed, thereby realizing the change of the mixing amount of each phase; the feed cover 303 is used to prevent material leakage; the maintenance notch 313 is used to facilitate the maintenance of the quantity control valve 2 and the mixing device 3;The annular spiral rail 315 in the annular channel 314 is used to promote the rotation of the fluid when the phases are mixed; the switching slide rail 317 is used for the up and down sliding of the control slider 207; when the control slider 207 is lifted to the limit position of the second slot 319, the mixing ball 310 cannot be lifted further, so that the hollow screw 308 cannot rotate clockwise, and the hollow screw 308 will slip relative to the second hollow shaft 305, while the second hollow shaft 305 will continue to rotate clockwise. ;

[0044] like Fig.10 , Fig.11 and Fig.12 As shown, when the material enters the pressure-changing barrel 401 and the mixing channel 312, the second hollow shaft 305 drives the stirring column 403 to rotate through the pressure-changing sleeve 405 to achieve mixing and stirring of the material. The stirring column 403 also drives the elastic baffle 402 on the lower leakage plate 404 to vibrate, so that the material produces a vibrating effect, further increasing the degree of mixing. At the same time, the material in the mixing channel 312 will rotate and flow in the annular spiral track 315 in the annular channel 314, thereby accelerating the mixing efficiency of the multiphase flow and changing the degree of mixing; at the same time, the second hollow shaft 305 also drives the closed sleeve 408 to rotate, and the closed sleeve 408 drives the centrifugal push rod 409 to be thrown outward by the centrifugal force. When the closed sleeve 408 The faster the rotation speed, the greater the distance the centrifugal push rod 409 is thrown outward. At this time, the front end of the centrifugal push rod 409 drives the transformer slide plate 406 to slide outward, which increases the flow rate of the multiphase flow through the two transformer slide plates 406; then the mixed multiphase fluid will enter the test pipe 502 installed on the load-bearing base 501, and then enter the first hollow shaft 104 through the circulation pump 503 and the circulation pipe 504, and then enter the second hollow shaft 305 through the first hollow shaft 104, and then flow into the transformer barrel 401 from the side of the lower end of the second hollow shaft 305 to realize the circulation impact corrosion function; the transformer spring 407 is used to drive the two transformer slide plates 406 to close inward.

[0045] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by technicians in the relevant technical field based on the above-mentioned conception without creative work all fall within the protection scope of the present invention.

Claims

1. A simulated multiphase flow corrosion test device, comprising a sliding device (1), a volume control valve (2), a mixing device (3), a pressure changing device (4), and a test assembly (5), characterized in that: The sliding device (1) is fixedly mounted on the upper end of the mixing device (3); the mixing device (3) is provided with a mixing sleeve (301), a feed cover (303), a second hollow shaft (305), a hollow lead screw (308), a sliding guide rod (309), a mixing ball (310), and a switching slide seat (311); the feed cover (303) is fixedly mounted inside the mixing sleeve (301); the outer cylindrical surface of the second hollow shaft (305) is rotatably connected to the inner cylindrical surface of the hollow lead screw (308); the hollow lead screw (308) is rotatably connected to the upper end of the switching slide seat (311); the sliding guide rod (309) is fixedly mounted on the upper end of the switching slide seat (311); the mixing ball (310) is slidably mounted on the sliding guide rod (309) in a vertical direction 9); the mixing ball (310) and the hollow lead screw (308) form a threaded pair; the control valve (2) is provided with a control plug (202), a one-way component (203), a control spring (206), and a control slider (207); the control slider (207) is mounted on the side of the switching slide seat (311) in a sliding manner in a vertical direction; the two ends of the control spring (206) are respectively fixedly mounted on the upper end of the control slider (207) and the lower end of the mixing ball (310); when the second hollow shaft (305) rotates clockwise, the second hollow shaft (305) drives the hollow lead screw (308) to rotate clockwise through friction, and the hollow lead screw (308) drives the mixing ball (310) to slide upward along the sliding guide rod (309) The mixing ball (310) drives the control slider (207) to slide upward on the switching slide (311) through the control spring (206), and the switching slide (311) drives the control valve (2) to slide upward, and then the one-way component (203) slides upward alone, so that the control plug (202) is inserted into the one-way component (203), thereby limiting the opening of the one-way component (203), and further realizing the switching of each phase mixing mode; the transformer (4) is fixedly mounted at the lower end of the mixing device (3); the test component (5) is fixedly mounted at the lower end of the transformer (4); the test component (5) is also connected to the sliding device (1); the mixing sleeve (301) is also provided with a mixing channel (312), an inspection notch (313), and a control notch (314). 13), an annular channel (314), and an annular spiral rail (315); three mixing channels (312) are distributed at the bottom of the mixing sleeve (301) along the circumferential direction; the three mixing channels (312) are connected through the three annular channels (314); the annular spiral rail (315) is fixedly installed on the inner wall of the annular channel (314); the inspection notch (313) is used to facilitate the maintenance of the control valve (2) and the mixing device (3); the control valve (2) also includes a control sleeve (201), a magnetic control component (204), a control electric push rod (205), a flexible pull rod (208), a magnetic suction plug column (209), and a support frame (210); the control sleeve (201) is slidably installed in the mixing channel (312) along the vertical direction;The control quantity plug post (202) is fixedly mounted on the upper end of the control quantity sleeve (201) in the vertical direction; the one-way component (203) is slidably mounted in the control quantity sleeve (201) in the vertical direction; the two ends of the magnetic control component (204) are respectively hinged on the upper end of the one-way component (203) and the side of the flexible pull rod (208); the control quantity electric push rod (205) is fixedly mounted on the side of the control quantity slide block (207); the output end of the control quantity electric push rod (205) is also fixedly connected to the rear end of the magnetic plug post (209); the magnetic plug post (209) is slidably mounted inside the control quantity slide block (207); a permanent magnet is provided at the front end of the magnetic plug post (209); the control quantity slide block (207) is also slidably mounted in the The switching slide rail (317) on the slide seat body (316) is provided with an upper end of the compliant pull rod (208) fixedly mounted on the rear end of the magnetic plug column (209); the lower end of the compliant pull rod (208) is fixedly mounted on the upper end of the one-way component (203); the two ends of the support frame (210) are respectively fixedly mounted on the lower end of the control slider (207) and the upper end of the control sleeve (201); the one-way ring (211) is provided on the one-way component (203); the one-way ring (211) is slidably mounted on the inner cylindrical surface of the control sleeve (201) in the vertical direction; the magnetic control component (204) is provided with an electromagnet (215); the upper end of the electromagnet (215) is hinged on the side of the compliant pull rod (208).

2. A simulated multiphase flow corrosion test device as claimed in claim 1, characterized in that: The mixing device (3) further comprises a feed pipe (302), a first gear (304), a second gear (306), and a motor (307); the feed pipe (302) is fixedly mounted on the upper end of the feed cover (303); the feed pipe (302) is also fixedly mounted on the lower end of the sliding device (1); the first gear (304) is fixedly mounted on the upper end of the second hollow shaft (305); the second gear (306) is fixedly mounted on the output end of the motor (307); the second gear (306) and the first gear (304) form a gear pair; the motor (307) is fixedly mounted inside the mixing sleeve (301); the upper end of the hollow lead screw (308) is also rotatably connected to the upper end of the mixing sleeve (301); the upper end of the sliding guide rod (309) is also fixedly mounted on the upper end of the mixing sleeve (301); and the switching slide seat (311) is fixedly mounted inside the mixing sleeve (301).

3. A simulated multiphase flow corrosion test device as claimed in claim 2, characterized in that: The switching slide (311) is provided with a slide body (316), a switching slide rail (317), a first slot (318), and a second slot (319); the slide body (316) is a triangular prism structure; the slide body (316) is fixedly mounted inside the mixing sleeve (301) in a vertical direction; the switching slide rail (317) is fixedly mounted on a side of the slide body (316) in a vertical direction; the first slot (318) is fixedly mounted on a lower half of the switching slide rail (317); and the second slot (319) is fixedly mounted on an upper half of the switching slide rail (317).

4. A simulated multiphase flow corrosion test device as claimed in claim 3, characterized in that: The one-way component (203) further comprises a one-way sleeve (212), a one-way fixing plate (213), and a compliant semicircular plate (214); the one-way sleeve (212) is fixedly mounted on the upper end of the compliant semicircular plate (214); the one-way fixing plate (213) is fixedly mounted inside the one-way ring (211); the upper end of the one-way fixing plate (213) is also fixedly connected to the lower end of the compliant pull rod (208); and the compliant semicircular plate (214) is fixedly mounted on the side of the one-way fixing plate (213).

5. A simulated multiphase flow corrosion test device as claimed in claim 4, characterized in that: The magneto-control assembly (204) further comprises a magneto-control sleeve (216) and a magneto-control slide bar (217); the magneto-control sleeve (216) is fixedly mounted on the lower end of the electromagnet (215); the magneto-control slide bar (217) is slidably mounted inside the magneto-control sleeve (216); and the lower end of the magneto-control slide bar (217) is also hinged to the upper end of the compliant semicircular plate (214).

6. A simulated multiphase flow corrosion test device as claimed in claim 5, characterized in that: The voltage transformation device (4) comprises a voltage transformation barrel (401), an elastic baffle (402), a stirring column (403), a lower leakage plate (404), a voltage transformation sleeve (405), a voltage transformation slide plate (406), a voltage transformation spring (407), a sealing sleeve (408), and a centrifugal push rod (409); the voltage transformation barrel (401) is fixedly mounted on the lower end of the mixing sleeve (301) along the axial direction; the lower leakage plate (404) is fixedly mounted inside the voltage transformation barrel (401); the elastic baffle (402) is fixedly mounted on the upper end of the lower leakage plate (404) along the vertical direction; the stirring column (403) is fixedly mounted on the voltage transformation sleeve (405) along the radial direction. The transformer sleeve (405) is fixedly mounted on the side of the transformer barrel (401); the inner cylindrical surface of the transformer sleeve (405) is fixedly connected to the upper end of the closed sleeve (408) and the lower end of the second hollow shaft (305), respectively; the transformer slide plate (406) is slidably mounted on the lower end of the transformer barrel (401) along the transverse direction; the side of the transformer slide plate (406) is also fixedly mounted on the lower end of the transformer barrel (401) via a transformer spring (407); the closed sleeve (408) is fixedly mounted on the lower end of the second hollow shaft (305) via the transformer sleeve (405); and the centrifugal push rod (409) is slidably mounted on the side of the closed sleeve (408) along the radial direction of the closed sleeve (408).

7. A simulated multiphase flow corrosion test device as claimed in claim 6, characterized in that: The sliding device (1) comprises a sliding sleeve (101), a sliding baffle (102), a sliding slope (103), a first hollow shaft (104), a sliding turntable (105), a material dividing hole (106), and a feeding hole (107); three feeding holes (107) are provided on the sliding sleeve (101); the three feeding holes (107) are respectively fixedly connected to three feeding pipes (302); the three sliding baffles (102) are evenly fixedly installed inside the sliding sleeve (101) along the circumferential direction; the three sliding baffles (102) also divide the internal space of the sliding sleeve (101) into three spaces of equal size; the three sliding slopes (103) are respectively fixedly installed in three spaces of equal size in the sliding sleeve (101); the first hollow shaft (104) is rotatably connected to the inner cylindrical surface of the sliding sleeve (101); the lower end of the first hollow shaft (104) is also fixedly connected to the upper end of the second hollow shaft (305); the sliding turntable (105) is rotatably connected to the bottom of the sliding sleeve (101); the sliding turntable (105) is also fixedly installed on the periphery of the first hollow shaft (104); a material distribution hole (106) is also provided on the sliding turntable (105); when the sliding turntable (105) is in motion, the material distribution hole (106) will correspond to the three feed holes (107) respectively.

8. A simulated multiphase flow corrosion test device as claimed in claim 7, characterized in that: The test assembly (5) comprises a load-bearing base (501), a test pipe (502), a circulation pump (503), and a circulation pipe (504); the load-bearing base (501) is fixedly mounted on the lower end of the transformer barrel (401) in a vertical direction; the test pipe (502) is slidably mounted inside the load-bearing base (501) in a vertical direction; the lower end of the test pipe (502) is fixedly connected to the upper end of the circulation pump (503); the circulation pump (503) is fixedly mounted on the bottom of the load-bearing base (501); and the circulation pump (503) is also connected to the upper end of the first hollow shaft (104) via the circulation pipe (504).

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