Flow control

Abstract

The baffle provided by the embodiment of the present invention comprises a lining component and a rotating component. The lining component has a ball inlet, a ball outlet, a first hole and a first opening connected to the first hole, and a Tesla valve-type flow channel is provided on the hole wall of the first hole to connect the ball inlet and the ball outlet. The rotating component is rotatably arranged in the first hole around a rotation axis. The rotating component has a ball receiving cup, and the rotating component can rotate between a first state in which the ball receiving cup is connected to the ball inlet and a second state in which the ball receiving cup is connected to the ball outlet, so as to transport the fuel element from the ball inlet to the ball outlet. The baffle of the embodiment of the present invention has the advantages of low failure rate and long service life.

Description

Technical Field

[0001] The invention belongs to the technical field of baffles, and in particular relates to a baffle. Background Art

[0002] The fuel loading and unloading system of the high-temperature gas-cooled reactor mainly uses the principle of pneumatic conveying to realize the circulation and lifting of fuel elements in the system, among which the baffle is an important equipment in the fuel loading and unloading system.

[0003] The two ends of the baffle are connected to the gravity ball drop tube section and the gas compression device respectively. While transporting the fuel elements, the baffle must also provide a reliable baffle function to ensure that the pressure head provided by the gas compression device will not affect the core.

[0004] The rotating part and the lining part of the spoiler used in the related art are matched with each other with a tiny gap. Under the conditions of long-term operation and changes in bearing clearance, the contact friction between the rotor and the lining will increase the matching gap, and even eccentric rotation may occur under the action of the pressure difference on both sides, resulting in a weakened spoiling effect, thus affecting normal pneumatic conveying. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, an embodiment of the present invention provides a baffle having the advantages of low failure rate and long service life.

[0007] The flow control device of the embodiment of the present invention comprises a lining component and a rotating component. The lining component comprises a ball inlet, a ball outlet, a first hole and a first opening connected to the first hole, and a Tesla valve-type flow channel is provided on the hole wall of the first hole to connect the ball inlet and the ball outlet. The rotating component is rotatably arranged in the first hole around a rotation axis. The rotating component comprises a ball receiving cup, and the rotating component can rotate between a first state in which the ball receiving cup is connected to the ball inlet and a second state in which the ball receiving cup is connected to the ball outlet, so as to transport the fuel element from the ball inlet to the ball outlet.

[0008] In some embodiments, the inner cylindrical surface of the lining component has a vertical plane where the center lines of the ball inlet and the ball outlet are located as the center line, and the inner cylindrical surfaces on both sides of the vertical plane are symmetrically opened with Tesla valve flow channels.

[0009] In some embodiments, the Tesla valve flow channel is an open slot structure.

[0010] In some embodiments, the rotating component includes a turntable, and the ball receiving cup is disposed on an outer circumferential surface of the turntable to receive the fuel element.

[0011] In some embodiments, the lining component has a first end surface and a second end surface that are opposite to each other in the extending direction of the rotation axis thereof, and a first debris guide hole is provided on the second end surface.

[0012] The turntable has a third end face and a fourth end face opposite to each other in the extension direction of the rotation axis thereof, the fourth end face is provided with a second debris diversion hole, one end of the second debris diversion hole is connected to the ball receiving cup, and the other end of the second debris diversion hole is connected to the first debris diversion hole to divert the debris.

[0013] In some embodiments, a first sealing portion is provided on the fourth end face of the turntable, a second sealing portion is provided at the bottom of the first hole, the first sealing portion and the second sealing portion are both annular, and the first sealing portion is sealed in cooperation with the second sealing portion.

[0014] In some embodiments, the first sealing portion includes a plurality of first annular sealing protrusions, the plurality of first annular sealing protrusions are arranged at intervals along the radial direction of the rotating disk, and adjacent first annular sealing protrusions define a first annular groove;

[0015] The second sealing portion comprises a plurality of second annular sealing protrusions, wherein the plurality of second annular sealing protrusions are arranged at intervals along the radial direction of the first hole, and adjacent second annular sealing protrusions define a second annular groove;

[0016] The first annular sealing protrusion is inserted into the second annular groove, and the second annular sealing protrusion is inserted into the first annular groove.

[0017] In some embodiments, the rotating component further includes a rotating shaft, one end of which is connected to the third end surface of the turntable to drive the rotating component to rotate.

[0018] In some embodiments, a spline is provided at the other end of the rotating shaft, and the other end of the rotating shaft is used to be connected to a driving device.

[0019] In some embodiments, a plurality of threaded holes are disposed on the first end surface, and the plurality of threaded holes are spaced apart along the circumference of the rotating component to fix the lining member. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an inner lining component in a spoiler according to an embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of a rotating component in a baffle according to an embodiment of the present invention;

[0022] Figure 3 is a schematic diagram of the assembly of the baffle according to an embodiment of the present invention;

[0023] Figure 4 Schematic diagram of the structure of the Tesla valve flow channel in the spoiler of the embodiment of the present invention.

[0024] Reference numerals:

[0025] 100, lining component; 1001, first end surface; 1002, second end surface;

[0026] 200, rotating parts;

[0027] 300, Tesla valve flow channel;

[0028] 1. Ball inlet; 2. Ball outlet; 3. First hole; 301. First opening; 4. Ball receiving cup; 5. Turntable; 501. Third end face; 502. Fourth end face; 503. Second debris guide hole; 6. First debris guide hole; 7. First sealing part; 701. First annular sealing protrusion; 702. First annular groove; 8. Second sealing part; 801. Second annular sealing protrusion; 802. Second annular groove; 9. Rotating shaft; 901. Spline; 10. Threaded hole. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] The following is based on the attached Figure 1-4 A baffle provided by an embodiment of the present invention is described.

[0031] The spoiler implemented in the present invention includes a lining component 100 and a rotating component 200 .

[0032] like Figure 1-4 As shown, the lining component 100 has a goal inlet 1, a ball outlet 2, a first hole 3 and a first opening 301 connected to the first hole 3. A Tesla valve-type flow channel is provided on the hole wall of the first hole 3 to connect the goal inlet 1 and the ball outlet 2. The rotating component 200 is rotatably arranged in the first hole 3 around a rotation axis. The rotating component 200 has a ball receiving cup 4, and the rotating component 200 can rotate between a first state in which the ball receiving cup 4 is connected to the goal inlet 1 and a second state in which the ball receiving cup 4 is connected to the ball outlet 2, so as to transport the fuel ball from the goal inlet 1 to the ball outlet 2.

[0033] The baffle of the embodiment of the present invention is provided with a rotating component, and the fuel element enters the ball receiving cup through the ball inlet. Then the rotating component rotates by a preset angle, so that the rotating component switches from a first state in which the ball receiving cup is connected to the ball inlet to a second state in which the ball receiving cup is connected to the ball outlet. Then the fuel element flows out of the ball receiving cup through the ball outlet, thereby completing the transportation of the fuel element by the baffle of the embodiment of the present invention.

[0034] The flow control device of the embodiment of the present invention is provided with a Tesla valve flow channel on the hole wall of the first hole 3 of the lining component 100 to connect the ball inlet 1 and the ball outlet 2, so that when the gas flows from the ball inlet 1 to the ball outlet 2, it all flows to the ball outlet 2 through the Tesla valve flow channel.

[0035] Compared with the spoiler in the related art, the choke pressure on the outer side of the rotating part 200 and the inner side of the lining part 100 is greatly reduced, which can prevent the spoiler from being worn out due to long-term operation, resulting in an increase in the matching clearance between the lining part 100 and the rotating part 200. At the same time, the Tesla valve flow channel has excellent choke performance. Therefore, the spoiler of the embodiment of the present invention reduces the choke pressure between the lining part 100 and the rotating part 200 without affecting the choke effect, thereby increasing the service life of the spoiler of the embodiment of the present invention.

[0036] Therefore, the baffle according to the embodiment of the present invention has the advantages of low failure rate and long service life.

[0037] In some embodiments, the inner cylindrical surface of the lining component 100 has a vertical plane where the center lines of the ball inlet 1 and the ball outlet 2 are located as the center line, and Tesla valve flow channels 300 are symmetrically opened on the inner cylindrical surface on both sides of the vertical plane.

[0038] Optionally, the Tesla valve flow channel 300 is an open slot structure.

[0039] like Figure 4 As shown, one end of the Tesla valve flow channel 300 is connected to the ball inlet 1, and the other end of the Tesla valve flow channel 300 is connected to the ball outlet 2, which produces a flow blocking effect on the gas flowing from the ball inlet 1 to the ball outlet 2, thereby greatly improving the flow blocking effect of the baffle of the embodiment of the present invention.

[0040] The embodiment of the present invention greatly improves the flow resistance effect of the flow blocker of the embodiment of the present invention by symmetrically arranging Tesla valve-type flow channels that can connect the ball inlet 1 and the ball outlet 2 on the inner cylindrical surface of the lining component 100. At the same time, it can reduce the flow resistance pressure between the lining component 100 and the rotating component 200, thereby improving the service life of the deflow device of the embodiment of the present invention.

[0041] In addition, a clearance fit can be adopted between the lining component 100 and the rotating component 200, so that the present invention has a certain flow-blocking effect, and the rotating component 200 can also rotate better in the first hole 3 of the lining component 100, and can better rotate and transport the fuel element from the ball inlet 1 to the ball outlet 2, thereby greatly improving the working efficiency of the flow control device of the embodiment of the present invention.

[0042] In some embodiments, the rotating component 200 includes a turntable 5, and the ball receiving cup 4 is disposed on the outer circumference of the turntable 5 to receive the fuel element.

[0043] In the first state, the ball receiving cup 4 is connected to the ball inlet 1 to receive the fuel element delivered by the upper pipeline. When the rotating component 200 is switched from the first state to the second state through rotation, the ball receiving cup 4 is connected to the ball outlet 2, and the fuel element flows from the ball receiving cup into the ball outlet 2, and is then delivered to the next-level pipeline.

[0044] The spoiler of the embodiment of the present invention greatly improves the working efficiency of the spoiler in conveying the fuel element by arranging the ball receiving cup 4 on the outer peripheral surface of the rotating disk 5 .

[0045] In some embodiments, the lining component 100 has a first end surface 1001 and a second end surface 1002 that are opposite to each other in the extending direction of the rotation axis thereof, and a first debris guide hole 6 is provided on the second end surface 1002.

[0046] The turntable 5 has a third end face 501 and a fourth end face 502 which are opposite to each other in the extension direction of its rotation axis. The fourth end face 502 is provided with a second debris diversion hole 503. One end of the second debris diversion hole 503 is connected to the ball receiving groove, and the other end of the second debris diversion hole 503 is connected to the first debris diversion hole 6 to divert the debris.

[0047] The baffle of the embodiment of the present invention can discharge the debris generated by the fuel element in the ball receiving cup 4 by providing the second debris guide hole 503 on the fourth end surface 502 of the rotating disk 5 to connect the ball receiving hole with the first debris guide hole 6. This prevents the debris from entering other parts of the baffle and causing the baffle to become stuck, greatly reduces the failure rate of the baffle of the embodiment of the present invention, and further improves the stability of the baffle of the embodiment of the present invention.

[0048] In some embodiments, a first sealing portion 7 is provided on the fourth end surface 502 of the turntable 5, and a second sealing portion 8 is provided at the bottom of the first hole 3. Both the first sealing portion 7 and the second sealing portion 8 are annular, and the first sealing portion 7 and the second sealing portion 8 are sealed together.

[0049] The baffle of the embodiment of the present invention can also achieve a certain flow blocking effect by providing the first sealing part 7 and the second sealing part 8, and the first sealing part 7 and the second sealing part 8 cooperate with each other, and can prevent the high-pressure airflow in the ball-out direction from flowing toward the ball-in direction through the fourth end surface 502 of the turntable 5 and the bottom surface of the first hole 3. Thus, the flow blocking effect of the baffle of the embodiment of the present invention is greatly improved.

[0050] In some embodiments, the first sealing portion 7 includes a plurality of first annular sealing protrusions 701 , which are spaced apart in the radial direction of the rotating disk 5 , and adjacent first annular sealing protrusions 701 define a first annular groove 702 .

[0051] The second sealing portion 8 includes a plurality of second annular sealing protrusions 801 . The plurality of second annular sealing protrusions 801 are arranged at intervals along the radial direction of the first hole 3 . Adjacent second annular sealing protrusions 801 define a second annular groove 802 .

[0052] The first annular sealing protrusion 701 is inserted into the second annular groove 802 , and the second annular sealing protrusion 801 is inserted into the first annular groove 702 .

[0053] The embodiment of the present invention prevents the high-pressure airflow in the ball outlet direction from flowing toward the ball outlet direction through the fourth end face 502 of the turntable 5 and the bottom face of the first hole 3 by matching the first annular sealing protrusion 701 with the second annular groove 802, and matching the first annular groove 702 with the second annular sealing protrusion 801, thereby greatly improving the flow blocking effect of the baffle in the embodiment of the present invention.

[0054] In some embodiments, the rotating component 200 further includes a rotating shaft 9 , one end of which is connected to the third end surface 501 of the rotating disk 5 to drive the rotating component 200 to rotate.

[0055] The baffle of the embodiment of the present invention is provided with a rotating shaft 9, which can drive the rotating disk 5 to rotate, so that the rotating component 200 can be better switched between the first state in which the ball receiving cup 4 is connected to the ball inlet 1 and the second state in which the ball receiving cup 4 is connected to the ball outlet 2. The working efficiency of the baffle of the embodiment of the present invention in conveying the fuel element is greatly improved.

[0056] Optionally, a spline 901 is provided at the other end of the rotating shaft 9, and the other end of the rotating shaft 9 is used to be connected to the driving device.

[0057] The spoiler of the embodiment of the present invention has a spline 901 at the other end of the shaft 9, so that the shaft 9 can be better connected to the drive device, which can reduce the risk of slipping between the shaft 9 and the drive device, and greatly improve the stability of the spoiler of the embodiment of the present invention.

[0058] In some embodiments, a plurality of threaded holes 10 are disposed on the first end surface 1001 , and the plurality of threaded holes 10 are spaced apart along the circumference of the rotating component 200 to fix the lining member.

[0059] The baffle of the embodiment of the present invention is provided with a plurality of threaded holes 10 on the first end surface 1001, so that the baffle of the embodiment of the present invention can be better installed on the required fuel element delivery pipeline as required, which greatly improves the ability of the embodiment of the present invention to adapt to different environments.

[0060] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0064] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A flow spoiler, characterized in that: include: A lining component, wherein the lining component has a ball inlet, a ball outlet, a first hole, and a first opening connected to the first hole, and a Tesla valve flow channel is provided on a hole wall of the first hole to connect the ball inlet and the ball outlet; a rotating component, the rotating component being rotatably disposed in the first hole around a rotating axis; The rotating component has a ball receiving cup, and the rotating component can rotate between a first state in which the ball receiving cup is connected to the ball inlet and a second state in which the ball receiving cup is connected to the ball outlet, so as to transport the fuel element from the ball inlet to the ball outlet; The rotating component includes a rotating disk, and the ball receiving cup is arranged on the outer peripheral surface of the rotating disk to receive the fuel element; The lining component has a first end face and a second end face opposite to each other in the extension direction of its rotation axis, and a first debris diversion hole is provided on the second end face. The turntable has a third end face and a fourth end face opposite to each other in the extension direction of its rotation axis, and a second debris diversion hole is provided on the fourth end face. One end of the second debris diversion hole is connected to the ball receiving cup, and the other end of the second debris diversion hole is connected to the first debris diversion hole to divert debris.

2. The spoiler according to claim 1, characterized in that: The inner cylindrical surface of the lining component has a vertical plane where the center lines of the ball inlet and the ball outlet are located as the center line, and the inner cylindrical surfaces on both sides of the vertical plane are symmetrically opened with Tesla valve flow channels.

3. A spoiler according to claim 2, characterized in that: The Tesla valve flow channel is an open groove structure.

4. The spoiler according to claim 1, characterized in that: A first sealing portion is disposed on the fourth end surface of the rotating disk, and a second sealing portion is disposed at the bottom of the first hole. Both the first sealing portion and the second sealing portion are annular, and the first sealing portion is in sealing cooperation with the second sealing portion.

5. The spoiler according to claim 4, characterized in that: The first sealing portion includes a plurality of first annular sealing protrusions, the plurality of first annular sealing protrusions are arranged at intervals along the radial direction of the rotating disk, and adjacent first annular sealing protrusions define a first annular groove; The second sealing portion comprises a plurality of second annular sealing protrusions, wherein the plurality of second annular sealing protrusions are arranged at intervals along the radial direction of the first hole, and adjacent second annular sealing protrusions define a second annular groove; The first annular sealing protrusion is inserted into the second annular groove, and the second annular sealing protrusion is inserted into the first annular groove.

6. The spoiler according to claim 1, characterized in that: The rotating component further includes a rotating shaft, one end of which is connected to the third end surface of the rotating disk to drive the rotating component to rotate.

7. The spoiler according to claim 6, characterized in that: The other end of the rotating shaft is provided with a spline, and the other end of the rotating shaft is used to be connected to a driving device.

8. The spoiler according to claim 1, characterized in that: The first end surface is provided with a plurality of threaded holes, and the plurality of threaded holes are distributed at intervals along the circumference of the rotating component to fix the lining component.

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