1af metering tank gas regulator adjustment device and method

Abstract

The present application relates to the technical field of spent fuel reprocessing, in particular to a 1AF metering tank gas damper adjusting device and method, the 1AF metering tank gas damper adjusting device comprising a fixed rack and a plurality of stirring mechanisms, the fixed rack being arranged directly above the 1AF metering tank, and the stirring mechanisms being movably arranged on one side of the fixed rack close to the 1AF metering tank. Through the adjustment of the fixed rack and the stirring mechanisms, the horizontal position and the vertical position of the stirring mechanisms can be quickly adjusted, and then the stirring effect of the gas damper in the 1AF metering tank with different number and arrangement position of the gas damper can be tested, so that the number and position arrangement of the gas damper in the 1AF metering tank can be confirmed and fixed, and the type, number and position arrangement of the stirring device in the 1AF metering tank with 1:1 scale of the commercial spent fuel reprocessing plant for the accurate metering of the 1AF liquid volume are provided with reference, the traditional fixed welding method is avoided, and the manpower, material resources and financial resources for the 1AF metering tank gas damper adjustment test are saved.

Description

Technical Field

[0001] This invention relates to the field of spent fuel reprocessing technology, and in particular to an adjustment device and method for a 1AF metering tank gas ballast. Background Technology

[0002] Spent fuel, also known as irradiated nuclear fuel, is nuclear fuel that has been exposed to radiation and has been used. It is usually produced by nuclear reactors in nuclear power plants and contains a large amount of radioactive elements. If not properly handled, it can seriously affect the environment and the health of people exposed to it. Therefore, spent fuel reprocessing is a key step in achieving a closed nuclear fuel cycle.

[0003] In spent fuel reprocessing, nuclear material balance is a crucial basis for nuclear material management, cost accounting, process control, and quality assurance. The 1:1 scale 1AF feed volume precision metering tanks used in domestic experimental and industrial-scale reprocessing plants have large volumes, and the feed density is uneven after settling. Therefore, before metering the 1AF feed, the feed in the 1AF metering tank should be thoroughly stirred to ensure density uniformity, thus facilitating accurate volume measurement.

[0004] For the development of a precise metering tank for 1AF feed liquid volume at a 1:1 scale for commercial spent fuel reprocessing plants, agitation is an essential component. However, there are no relevant references regarding the type, quantity, and location arrangement of agitation devices within the 1AF metering tanks of commercial spent fuel reprocessing plants.

[0005] Therefore, developing a rapid adjustment device and method for the 1AF metering tank stirring device to facilitate the confirmation and solidification of the number and location of gas ballasts in the 1AF metering tank is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide an adjustment device for a 1AF metering tank gas ballast, which can quickly adjust the horizontal and vertical positions of the gas ballast.

[0007] In a first aspect, the present invention provides an adjustment device for a gas ballast in an 1AF metering tank, comprising a fixed frame and a plurality of stirring mechanisms. The fixed frame is disposed directly above the 1AF metering tank, and the stirring mechanisms are movably disposed on the side of the fixed frame close to the 1AF metering tank.

[0008] In a preferred embodiment of this technical solution, the fixed platform is provided with multiple slide rails arranged in an alternating manner on the side away from the 1AF metering tank, and the stirring mechanism is slidably connected to the slide rails.

[0009] In a preferred embodiment of this technical solution, the stirring mechanism includes a movable roller, a retractable support, and a gas ballast. The retractable support is fixedly connected to the movable roller via a connecting plate, and the gas ballast is fixedly disposed at the end of the retractable support away from the movable roller. The movable roller is slidably connected to the slide rail.

[0010] In a preferred embodiment of this technical solution, the gas ballast includes multiple gas ballasts of different models and specifications. In another preferred embodiment, the telescopic support includes a support rod, a lifting rod, and a limiting block. The support rod has a hollow sleeve structure, and the lifting rod is movably disposed inside the support rod. Along the axial direction of the support rod, multiple limiting holes are provided on the support rod, and the lifting rod has a through hole identical to the limiting holes. The gas ballast is fixedly disposed at the end of the support rod away from the lifting rod.

[0011] In a preferred embodiment of this technical solution, the telescopic bracket includes a support rod, a lifting rod, and a tightening screw. The support rod is a hollow sleeve structure, the lifting rod is movably disposed inside the support rod, and the tightening screw is disposed at the end of the support rod near the lifting rod and can be used to tighten the lifting rod. The gas ballast is fixedly disposed at the end of the support rod away from the lifting rod.

[0012] In a preferred embodiment of this technical solution, the gas ballast is fixedly mounted on the end of the support rod away from the lifting rod by a fixing ring.

[0013] In a preferred embodiment of this technical solution, the fixed platform is snapped into the 1AF metering slot.

[0014] As a preferred embodiment of this technical solution, a handle is provided on the side of the fixed platform away from the 1AF metering tank.

[0015] Secondly, the method for adjusting the gas ballast using the aforementioned 1AF metering tank gas ballast adjustment device should also fall within the protection scope of this invention. This adjustment method specifically includes the following steps:

[0016] The vertical and horizontal positions of the gas ballast were adjusted using a retractable bracket and movable rollers, a stirring test was conducted by adding simulated liquid, and density was measured by taking samples at a predetermined location. Through multiple sets of comparative tests, the arrangement scheme of the gas ballast was obtained.

[0017] The 1AF metering tank gas ballast adjustment device of the present invention has at least the following technical effects:

[0018] The 1AF metering tank gas ballast adjustment device of the present invention includes a fixed platform and multiple stirring mechanisms. The fixed platform is positioned directly above the 1AF metering tank, and the stirring mechanisms are movably positioned on the side of the fixed platform close to the 1AF metering tank. By adjusting the fixed platform and the stirring mechanisms, the horizontal and vertical positions of the stirring mechanisms can be quickly adjusted. This allows for testing the stirring effect of different numbers and arrangements of gas ballasts within the 1AF metering tank, facilitating the confirmation and solidification of the number and arrangement of gas ballasts within the 1AF metering tank. Furthermore, it provides a reference for the type, number, and arrangement of stirring devices in 1:1 scale 1AF feed liquid volume precision metering tanks in commercial spent fuel reprocessing plants, avoiding traditional welding fixing methods and significantly saving manpower, material resources, and financial resources for 1AF metering tank gas ballast adjustment testing. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a front view of the 1AF metering tank gas ballast adjustment device of the present invention;

[0021] Figure 2 Top view of the 1AF metering tank gas ballast adjustment device of the present invention. Figure 1 ;

[0022] Figure 3 Top view of the 1AF metering tank gas ballast adjustment device of the present invention. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the retractable support of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1: 1AF metering tank; 2: fixed frame; 3: slide rail; 4: moving roller; 5: gas ballast; 6: support rod; 7: lifting rod; 8: limit block; 9: handle. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Example 1

[0030] This embodiment provides a 1AF metering tank gas ballast adjustment device, including a fixed frame 2 and multiple stirring mechanisms. The fixed frame 2 is positioned directly above the 1AF metering tank 1, and the stirring mechanisms are movably positioned on the side of the fixed frame 2 closest to the 1AF metering tank 1. By adjusting the fixed frame 2 and the stirring mechanisms, the horizontal and vertical positions of the stirring mechanisms can be quickly adjusted. This allows for testing the stirring effect of different numbers and arrangements of gas ballasts 5 within the 1AF metering tank 1, facilitating the confirmation and consolidation of the number and position of the gas ballasts 5 within the 1AF metering tank 1. Furthermore, it provides a reference for the type, number, and position arrangement of stirring devices in 1:1 scale 1AF feed liquid volume precision metering tanks in commercial spent fuel reprocessing plants.

[0031] In this embodiment, to precisely control the trajectory of the stirring device, multiple slide rails 3 are staggered on the side of the fixed frame 2 away from the 1AF metering tank 1. Specifically, the slide rails 3 can be arranged in a cross or a star pattern. Different types and specifications of stirring mechanisms are installed on each track, and these stirring mechanisms are slidably connected to the slide rails 3. In use, one or more different types and specifications of stirring mechanisms on the corresponding tracks can be activated as needed to achieve different stirring effects. Experiments have shown that when larger gas ballasts 5 are placed on the cross-shaped slide rails 3 and smaller gas ballasts 5 are placed on the diagonal slide rails 3, the stirring effect is better.

[0032] Based on the above technical solution, the stirring mechanism further includes a movable roller 4, a retractable support and a gas ballast 5. The retractable support is fixedly connected to the movable roller 4 through a connecting plate, and the gas ballast 5 is fixedly disposed at the end of the retractable support away from the movable roller 4. The movable roller 4 is slidably connected to the slide rail 3.

[0033] like Figure 1-3 As shown, the stirring mechanism specifically includes a movable roller 4, a telescopic bracket, and a gas ballast 5. The movable roller 4 is located at the top of the stirring mechanism and is slidably connected to the slide rail 3. The telescopic bracket is fixedly connected to the side of the movable roller 4, and the gas ballast 5 is fixedly connected to the other end of the telescopic bracket. By adjusting the telescopic bracket, the height of the gas ballast 5 in the 1AF metering tank 1 can be adjusted, that is, the vertical position of the gas ballast 5 can be adjusted.

[0034] In this invention, the specific implementation of the retractable bracket is not strictly limited. In one embodiment, such as... Figure 4 As shown, the telescopic support includes a support rod 6, a lifting rod 7, and a limiting block 8. The support rod 6 has a hollow sleeve structure, and the lifting rod 7 is movably disposed inside the support rod 6. Multiple limiting holes are formed on the support rod 6 along its axial direction, and a through hole with the same type of limiting holes is formed on the lifting rod 7. The height of the telescopic support can be adjusted by passing the limiting block 8 through the corresponding limiting holes and through holes. The gas ballast 5 is fixedly disposed at the end of the support rod 6 away from the lifting rod 7. When the gas ballast 5 is working, compressed air acts on the liquid inside the gas ballast 5 cylinder to form a hydraulic flow. The liquid flow is ejected at high speed from the nozzle at the bottom of the gas ballast 5 to achieve stirring and mixing of the liquid in the 1AF metering tank 1.

[0035] Another embodiment of the telescopic bracket in this example includes a support rod 6, a lifting rod 7, and a tightening screw. The support rod 6 is a hollow sleeve structure. The lifting rod 7 is movably disposed inside the support rod 6. The tightening screw is correspondingly disposed at the end of the support rod 6 near the lifting rod 7 and can be used to tighten the lifting rod 7. When the tightening screw is loosened, the position of the lifting rod 7 within the support rod 6 is moved. When the desired height is reached, the tightening screw is tightened to fix the telescopic rod to the support rod 6. This height adjustment method offers greater flexibility compared to the method using the limiting block 8, and is not limited to adjusting the position of a specific limiting hole, allowing for adjustment to any height. Similarly, the gas ballast 5 is fixedly disposed at the end of the support rod 6 away from the lifting rod 7.

[0036] Because the gas ballast 5 will generate a large amount of disturbance when it is working, in order to ensure the stability of the entire adjustment device, the gas ballast 5 is fixedly installed at the end of the support rod 6 away from the lifting rod 7 by a fixing ring.

[0037] Based on the above technical solution, and more preferably, the fixed frame 2 is snapped into the 1AF metering tank 1, that is, the fixed frame 2 can also be used as a metering tank cover to cover the 1AF metering tank 1 to prevent dirt from entering the metering tank.

[0038] Based on the above technical solution, more preferably, a handle 9 is provided on the side of the fixed platform 2 away from the 1AF metering tank 1. When it is necessary to adjust the height of the telescopic support, a tower crane can be used to lift the fixed platform 2 through the handle 9 on the fixed platform 2, so that the telescopic support is separated from the liquid, and then the specific positions of the lifting rod 7 and the support rod 6 can be adjusted.

[0039] Example 2

[0040] The method for adjusting the gas ballast 5 using the above-mentioned optimal 1AF metering tank gas ballast adjustment device includes the following steps:

[0041] 1. Select 2-4 sets of gas ballasts and weld them to the fixing ring;

[0042] 2. Set up various vertical height and horizontal position arrangement schemes for the gas ballast 5, wherein the vertical position of the gas ballast 5 is changed by adjusting the length adjustment device of the telescopic bracket; and the horizontal position of the gas ballast 5 is adjusted by driving the moving roller 4.

[0043] 3. Add the designed capacity of simulated liquid to metering tank 1 and let it stand for a while;

[0044] 4. Conduct stirring tests on gas ballasts 5 with various arrangements and combinations, and take density samples at predetermined locations to record the stirring effect under each combination.

[0045] 5. Repeat steps 2)-4) using other arrangements of gas ballasts in different quantities and combinations.

[0046] 6. Complete various arrangement schemes of gas ballasts 5 in multiple quantities and combinations, and finally obtain the best stirring effect of 1AF metering tank 1, thereby obtaining the best arrangement scheme of gas ballasts 5.

[0047] In summary, the present invention can quickly adjust the horizontal and vertical positions of the stirring mechanism, and then be used to test the stirring effect of different numbers and arrangements of gas ballasts 5 in the 1AF metering tank 1. It avoids the traditional welding and fixing method, and greatly saves manpower, material resources and financial resources for adjusting and testing the gas ballasts 5 in the 1AF metering tank 1.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A 1AF metering tank gas ballast adjustment device, characterized in that, Includes a fixed platform (2) and multiple mixing mechanisms, The fixed platform (2) is set directly above the 1AF metering tank (1), and the stirring mechanism is movably set on the side of the fixed platform (2) close to the 1AF metering tank (1); by adjusting the fixed platform (2) and the stirring mechanism, the horizontal and vertical positions of the stirring mechanism can be quickly adjusted. The fixed frame (2) has multiple slide rails (3) staggered on one side away from the 1AF metering tank (1), and the stirring mechanism is slidably connected to the slide rails (3); The stirring mechanism includes a movable roller (4), a retractable support, and a gas ballast (5). The retractable bracket is fixedly connected to the movable roller (4) via a connecting plate, and the gas ballast (5) is fixedly installed at the end of the retractable bracket away from the movable roller (4); The movable roller (4) is slidably connected to the slide rail (3); The gas ballast (5) includes multiple gas ballasts (5) of different models and specifications. The retractable support includes a support rod (6), a lifting rod (7), and a limiting block (8). Alternatively, the retractable bracket may include a support rod (6), a lifting rod (7), and a tightening screw.

2. The 1AF metering tank gas ballast adjustment device according to claim 1, characterized in that, When the retractable bracket includes a support rod (6), a lifting rod (7) and a limiting block (8), the support rod (6) is a hollow sleeve structure, and the lifting rod (7) is movably disposed inside the support rod (6); Along the axial direction of the support rod (6), a plurality of limiting holes are provided on the support rod (6), and a through hole with the same limit holes is provided on the lifting rod (7); The gas ballast (5) is fixedly installed at the end of the support rod (6) away from the lifting rod (7).

3. The 1AF metering tank gas ballast adjustment device according to claim 1, characterized in that, When the retractable bracket includes a support rod (6), a lifting rod (7), and a tightening screw, The support rod (6) is a hollow sleeve structure. The lifting rod (7) is movably disposed inside the support rod (6). The tightening screw is disposed at one end of the support rod (6) near the lifting rod (7) and can be used to tighten the lifting rod (7). The gas ballast (5) is fixedly installed at the end of the support rod (6) away from the lifting rod (7).

4. The 1AF metering tank gas ballast adjustment device according to any one of claims 2 or 3, characterized in that, The gas ballast (5) is fixedly mounted on the end of the support rod (6) away from the lifting rod (7) by a fixing ring.

5. The 1AF metering tank gas ballast adjustment device according to claim 1, characterized in that, The fixed frame (2) is engaged with the 1AF metering slot (1).

6. The 1AF metering tank gas ballast adjustment device according to claim 1, characterized in that, A handle (9) is provided on the side of the fixed platform (2) away from the 1AF metering tank (1).

7. A method for adjusting a gas ballast using the gas ballast adjustment device of any one of claims 1-6, characterized in that, Includes the following steps: The vertical and horizontal positions of the gas ballast (5) were adjusted by the telescopic bracket and the movable roller (4), a simulated liquid was added for stirring test, and a sample was taken at a predetermined position for density measurement. Through multiple sets of comparative tests, the arrangement scheme of the gas ballast (5) was obtained.

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