Reaction apparatus and nuclear reactor

Abstract

The present application relates to the technical field of nuclear reactors, and provides a reaction device and a nuclear reactor. The reaction device comprises: a first mounting plate and a second mounting plate forming a reaction space, the first mounting plate and the second mounting plate being respectively provided with a first through hole and a second through hole; a first plunger connecting a rod and the first through hole, the first plunger being provided with a first flow channel, and the side wall of the first plunger being provided with a first communication hole communicating the first flow channel and the reaction space; and a second plunger connecting the rod and the second through hole, the second plunger being provided with a second flow channel, and the side wall of the second plunger being provided with a second communication hole communicating the second flow channel and the reaction space. Heat exchange medium can enter and exit the reaction space through the first plunger and the second plunger arranged at both ends of the rod, so that holes need not be opened in the first mounting plate and the second mounting plate for the heat exchange medium to flow through, thereby enabling the rod to be installed at the positions where holes were originally needed to be opened, increasing the number of rods installed, and improving the heating effect of the reaction device.

Description

Technical Field

[0001] This invention relates to the field of nuclear reactor technology, and more particularly to a reaction device and a nuclear reactor. Background Technology

[0002] In existing technologies, both nuclear reactor reactor apparatuses and reactor apparatuses used for simulating nuclear reactor reactions typically include rods and mounting plates. The difference lies in the type of rods used: in nuclear reactor reactor apparatuses, the rods are fuel rods; while in reactor apparatuses used for simulating nuclear reactions, the rods are electrically heated rods.

[0003] The device comprises a pair of mounting plates spaced apart, forming a reaction space capable of accommodating the rods. Each end of the rod is connected to one of the mounting plates. Each mounting plate has an inlet for the heat exchange medium and an outlet for its discharge. During operation, the heat exchange medium enters the reaction space through the inlet, flows through the gap between the rods, exchanges heat with the outer walls of the rods, and finally exits through the outlet.

[0004] Since the rods are mounted on the mounting plate, the size of the mounting plate determines the size of the reaction space and the number of rods that can be installed. Given a fixed mounting plate size, the inlet and outlet holes on the mounting plate will inevitably encroach on the mounting space for the rods, resulting in a reduction in the number of rods within the reaction space and thus decreasing the heating efficiency of the reaction apparatus. Summary of the Invention

[0005] This invention provides a reaction device and a nuclear reactor to solve the defect in the prior art where the openings on the mounting plate of the reaction device occupy the installation space of the rods, resulting in a reduction in the number of rods in the reaction space, thereby achieving the effect of increasing the number of rods in the reaction space.

[0006] This invention provides a reaction apparatus, comprising:

[0007] A first mounting plate and a second mounting plate are spaced together to form a reaction space for accommodating the rod. The first mounting plate is provided with a first through hole and the second mounting plate is provided with a second through hole.

[0008] A first plunger is connected to one end of the first through hole and the rod. The end of the first plunger connected to the first through hole is provided with a first flow channel extending into the reaction space. The side wall of the first plunger is provided with a first connecting hole connecting the first flow channel and the reaction space, so that the heat exchange medium can enter and exit the reaction space through the first flow channel and the first connecting hole.

[0009] The second plunger connects the second through hole to the other end of the rod. The end of the second plunger connected to the second through hole is provided with a second flow channel extending into the reaction space. The side wall of the second plunger is provided with a second connecting hole that connects the second flow channel and the reaction space, so that the heat exchange medium can enter and exit the reaction space through the second connecting hole and the second flow channel.

[0010] According to a reaction device provided by the present invention, the first plunger is adjustablely connected to the first through hole along the axial direction of the first through hole, so that at least a portion of the orifice of the first through hole can enter the first through hole.

[0011] And / or, along the axial direction of the second through hole, the second plunger is adjustablely connected to the second through hole so that at least a portion of the orifice of the second connecting hole can enter the second through hole.

[0012] According to a reaction device provided by the present invention, the first plunger is threadedly connected to or interference-fitted to the first through hole;

[0013] And / or, the second plunger is threaded or interference-fitted to the second through hole.

[0014] According to a reaction apparatus provided by the present invention, the first communicating hole is configured as an elongated hole extending along the length direction of the first plunger;

[0015] And / or, the second connecting hole is configured as an elongated hole extending along the length direction of the second plunger.

[0016] According to a reaction apparatus provided by the present invention, the end of the first plunger away from the reaction space extends out of the first through hole and is provided with a shoulder, the shoulder being used to abut against the side of the first mounting plate away from the reaction space;

[0017] And / or, the portion of the second plunger located in the reaction space is provided with a collar, the two ends of which are respectively used to abut against the second mounting plate and the rod.

[0018] According to a reaction apparatus provided by the present invention, a gasket is further provided between the shoulder and the first mounting plate and / or between the collar and the second mounting plate.

[0019] According to a reaction apparatus provided by the present invention, one end of the rod connected to the first plunger is provided with a light hole for the first plunger to extend into;

[0020] And / or, one end of the rod connecting to the second plunger is provided with a threaded hole that engages with the threaded part of the second plunger.

[0021] According to a reaction apparatus provided by the present invention, a detection device is further included. The detection device is connected to the rod and is used to detect parameter information of the rod. The cable of the detection device is led out of the reaction space through the first connecting hole and the first flow channel, or through the first flow channel, or through the second connecting hole and the second flow channel, or through the second flow channel.

[0022] According to a reaction apparatus provided by the present invention, the rod is a fuel rod or an electric heating rod, wherein the cable of the electric heating rod is led out of the reaction space through the first connecting hole and the first flow channel, or through the first flow channel, or through the second connecting hole and the second flow channel, or through the second flow channel.

[0023] According to a reaction apparatus provided by the present invention, a collector cylinder is further included, the two ends of which are respectively connected to the first mounting plate and the second mounting plate, and the rod is disposed inside the collector cylinder.

[0024] According to a reaction apparatus provided by the present invention, a sealing element is provided between the collecting cylinder and the first mounting plate and between the collecting cylinder and the second mounting plate.

[0025] According to a reaction apparatus provided by the present invention, a heat insulation layer is further included, which is fitted onto the outside of the manifold.

[0026] According to a reaction apparatus provided by the present invention, a housing is further included, wherein a first mounting plate and a second mounting plate are both installed inside the housing, and the housing is provided with a first through port for the heat exchange medium to enter and a second through port for the heat exchange medium to exit, wherein the first through port is located on the side of the first mounting plate away from the reaction space, and the second through port is located on the side of the second mounting plate away from the reaction space.

[0027] According to a reaction device provided by the present invention, the outer shell includes a first cylinder and a second cylinder, the first cylinder and the second cylinder are detachably connected, the first mounting plate and the second mounting plate are both installed in the second cylinder, the first through-hole is provided on the first cylinder, and the second through-hole is provided on the second cylinder.

[0028] According to a reaction device provided by the present invention, the inner wall of the outer shell is provided with a first annular structure for supporting the first mounting plate and a second annular structure for supporting the second mounting plate, and the first mounting plate is connected to the first annular structure by fasteners.

[0029] The present invention also provides a nuclear reactor, comprising the reaction apparatus described above.

[0030] The reaction apparatus provided by this invention connects a first mounting plate and a first end of a rod via a first plunger, and a second mounting plate and a second end of the rod via a second plunger. During operation, the heat exchange medium enters the reaction space through a first flow channel and a first connecting hole, exchanging heat with the rod. After heat exchange, the heat exchange medium exits the reaction space through a second connecting hole and a second flow channel. Alternatively, the heat exchange medium can enter the reaction space through the second plunger and exit from the reaction space through the first plunger.

[0031] This configuration allows the heat exchange medium to enter and exit the reaction space through the first and second plungers located at both ends of the rod, eliminating the need for openings in the first and second mounting plates for medium flow. This allows the rods to be installed in locations where openings would have been previously required, increasing the number of rods that can be installed and improving the heating efficiency of the reaction apparatus. It also solves the problem in existing technologies where openings in the mounting plates occupy space for rod installation, leading to a reduction in the number of rods that can be installed. Furthermore, since no openings are needed for the heat exchange medium, fewer openings are required in the mounting plates, thus increasing their structural strength. In addition, the elimination of openings allows for a smaller mounting plate volume, resulting in a more compact reaction apparatus structure.

[0032] Furthermore, in existing reaction devices, the distance between each rod and the opening within the reaction space varies. Rods closer to the opening have better heat dissipation, while those farther away have relatively poor heat dissipation. This prevents the full utilization of the heating capacity of each rod, limiting the heating rate and effect of the reaction device. In contrast, the reaction device of this invention, because each rod is connected to a first mounting plate via a corresponding first plunger and to a second mounting plate via a corresponding second plunger, allows heat exchange medium to flow over the outer surface of each rod. That is, the heat exchange medium flows from one end of the rod to the other, exchanging heat with the rod. In this way, the heat exchange medium can exchange heat with each rod, thereby fully utilizing the heating capacity of each rod and improving the heating rate and effect of the reaction device.

[0033] The nuclear reactor provided by the present invention incorporates all the advantages of the reaction apparatus described above. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the reaction apparatus provided in the embodiments of the present invention;

[0036] Figure 2 yes Figure 1 AA section view of the view shown;

[0037] Figure 3 yes Figure 1 A magnified view of section I in the view shown;

[0038] Figure 4 yes Figure 1 A magnified view of section II in the view shown;

[0039] Figure 5 This is a schematic diagram of the structure of the first plunger provided in an embodiment of the present invention;

[0040] Figure 6 yes Figure 5 A top view of the first plunger shown;

[0041] Figure 7 This is a schematic diagram of the structure of the second plunger provided in an embodiment of the present invention;

[0042] Figure 8 yes Figure 7 Top view of the second plunger;

[0043] Figure 9 This is a schematic diagram of the structure of the rod provided in the embodiment of the present invention when it is installed in the reaction space;

[0044] Figure 10 This is a schematic diagram of the structure of the first housing provided in an embodiment of the present invention;

[0045] Figure 11 This is a schematic diagram of the structure of the second housing provided in an embodiment of the present invention;

[0046] Figure 12 This is a schematic diagram of the structure of the flow collector provided in an embodiment of the present invention;

[0047] Figure 13 yes Figure 12 The BB section view shown in the diagram;

[0048] Figure 14 yes Figure 1 A magnified view of section III in the image.

[0049] Figure label:

[0050] 1. First mounting plate; 2. Second mounting plate; 3. Rod; 4. First through hole; 5. Second through hole;

[0051] 6. First plunger; 601. First flow channel; 602. First connecting hole; 603. Shoulder; 604. First polygonal hole;

[0052] 7. Second plunger; 701. Second flow channel; 702. Second connecting hole; 703. Collar; 704. Second polygonal hole;

[0053] 8. Manifold; 801. First flange; 802. Second flange;

[0054] 9. Sealing components; 10. Thermal insulation layer;

[0055] 11. Outer shell; 111. First shell; 1111. Cylinder; 1112. End cap; 112. Second shell; 1121. First annular structure; 1122. Second annular structure; 1123. Mounting base; 113. First through-hole; 114. Second through-hole; 115. Wiring port;

[0056] 12. Sleeve; 13. Nut; 14. Washer. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0058] Existing reaction apparatuses typically include rods and mounting plates. The mounting plates are arranged in pairs, with a gap between them. The space between the two mounting plates forms a reaction space capable of accommodating the rods, with each end of the rod connected to one of the mounting plates. Each pair of mounting plates has an inlet for the heat exchange medium to enter and an outlet for the heat exchange medium to exit. During operation, the heat exchange medium enters the reaction space through the inlet, flows through the gap between the rods, exchanges heat with the outer walls of the rods, and finally exits through the outlet. Since the rods are mounted on the mounting plates, the size of the mounting plates determines the size of the reaction space and the number of rods that can be mounted. With a fixed mounting plate size, the inlet and outlet holes inevitably encroach on the mounting space for the rods, reducing the number of rods within the reaction space and decreasing the heating efficiency of the reaction apparatus.

[0059] Therefore, in order to solve the problem that the openings on the mounting plate of the reaction device in the prior art occupy the installation space of the rods, resulting in a reduction in the number of rods in the reaction space, and to achieve the effect of increasing the number of rods that can be installed on the mounting plate without increasing the area of ​​the mounting plate, the present invention provides a reaction device and a nuclear reactor.

[0060] The following is combined with Figures 1 to 14 The reaction apparatus provided in the embodiments of the present invention is described.

[0061] Specifically, the reaction device includes a first mounting plate 1, a second mounting plate 2, a first plunger 6, and a second plunger 7.

[0062] The first mounting plate 1 and the second mounting plate 2 are spaced apart to form a reaction space for accommodating the rod 3. The first mounting plate 1 is provided with a first through hole 4 communicating with the reaction space, and the second mounting plate 2 is provided with a second through hole 5 communicating with the reaction space.

[0063] The first plunger 6 connects to one end of the first through hole 4 and the rod 3, and the end of the first plunger 6 connected to the first through hole 4 is provided with a first flow channel 601 extending into the reaction space. The sidewall of the first plunger 6 is provided with a first connecting hole 602 connecting the first flow channel 601 and the reaction space, so that the heat exchange medium can enter and exit the reaction space through the first flow channel 601 and the first connecting hole 602. Optionally, the first plunger 6 is configured as a cylindrical structure, in which case the first flow channel 601 extends axially along the first plunger 6, and the first connecting hole 602 extends radially along the first plunger 6. Optionally, there are multiple first connecting holes 602, and the multiple first connecting holes 602 are distributed circumferentially along the first plunger 6. It should be noted that the heat exchange medium can be a liquid or a gas. The liquid includes, but is not limited to, water. The gas includes, but is not limited to, air and inert gases.

[0064] The second plunger 7 connects the second through hole 5 and the other end of the rod 3, and the end of the second plunger 7 connected to the second through hole 5 is provided with a second flow channel 701 extending into the reaction space. The side wall of the second plunger 7 is provided with a second connecting hole 702 connecting the second flow channel 701 and the reaction space, so that the heat exchange medium can enter and exit the reaction space through the second flow channel 701 and the second connecting hole 702. Optionally, the second plunger 7 is configured as a cylindrical structure, in which case the second flow channel 701 extends along the axial direction of the second plunger 7, and the second connecting hole 702 extends along the radial direction of the second plunger 7. Optionally, there are multiple second connecting holes 702, and the multiple second connecting holes 702 are distributed circumferentially along the second plunger 7.

[0065] Furthermore, there are multiple first plungers 6 and multiple second plungers 7, and they correspond one-to-one to facilitate the installation of multiple rods 3.

[0066] The reaction apparatus provided in this embodiment of the invention connects the first mounting plate 1 and the first end of the rod 3 via a first plunger 6, and connects the second mounting plate 2 and the second end of the rod 3 via a second plunger 7. (See reference) Figure 1 , Figure 3 and Figure 4 As shown, during the operation of the reaction device, the heat exchange medium can enter the reaction space through the first flow channel 601 and the first connecting hole 602, and exchange heat with the rod 3. Wherein, Figure 3 The arrows in the diagram represent the flow path of the heat exchange medium as it enters the reaction space through the first plunger 6. After heat exchange, the heat exchange medium can be discharged from the reaction space through the second connecting hole 702 and the second flow channel 701. Figure 4 The arrows in the diagram represent the flow path of the heat exchange medium in the reaction space as it exits through the second plunger 7. Alternatively, the heat exchange medium can also enter the reaction space through the second plunger 7 and exit through the first plunger 6.

[0067] This configuration allows the heat exchange medium to enter and exit the reaction space through the first plunger 6 and the second plunger 7 located at both ends of the rod 3. This eliminates the need for openings in the first mounting plate 1 and the second mounting plate 2 to allow for medium flow, enabling the rod 3 to be installed in locations where openings would have been previously required. This increases the number of rods 3 that can be installed, improves the heating effect of the reaction device, and solves the problem in existing technologies where openings in the mounting plates occupy space for the rods 3, leading to a reduction in the number of rods 3 that can be installed. Furthermore, since no openings are needed for the heat exchange medium, fewer openings are required in the mounting plates, thus increasing their structural strength. In addition, the elimination of openings allows for a smaller mounting plate volume, resulting in a more compact reaction device structure.

[0068] Furthermore, in existing reaction devices, the distance between each rod 3 and the opening within the reaction space varies. Rods 3 closer to the opening have better heat dissipation, while those farther away have relatively poor heat dissipation. This prevents the full utilization of the heating capacity of each rod 3, limiting the heating rate and effect of the reaction device. In the reaction device of this invention, each rod 3 is connected to the first mounting plate 1 via a corresponding first plunger 6 and to the second mounting plate 2 via a corresponding second plunger 7. Therefore, a heat exchange medium flows over the outer surface of each rod 3, from one end to the other, exchanging heat with the rod 3. This allows the heat exchange medium to exchange heat with each rod 3, fully utilizing its heating capacity and improving the heating rate and effect of the reaction device.

[0069] In some embodiments provided by the present invention, the first plunger 6 is arbitrarily connected to the first through hole 4 along the axial direction of the first through hole 4, so that at least a portion of the orifice of the first connecting hole 602 can enter the first through hole 4. With this configuration, by adjusting the relative position of the first plunger 6 and the first through hole 4, the orifice of the first connecting hole 602 can enter the first through hole 4, meaning that a portion of the orifice of the first connecting hole 602 is covered by the wall of the first through hole 4. This reduces the cross-section of the heat exchange medium flow channel, thereby achieving the effect of adjusting the heat exchange medium flow rate.

[0070] Optionally, the first plunger 6 is threadedly connected to the first through hole 4. Specifically, as follows: Figure 3 , Figure 5 As shown, the first through hole 4 is a threaded hole, and the first plunger 6 has an external thread that engages with the threaded connection of the first through hole 4. The first plunger 6 is screwed into the first through hole 4. The position of the first plunger 6 can be adjusted along the axial direction of the first through hole 4 by screwing it. Of course, the first plunger 6 is not limited to being threadedly connected to the first through hole 4. For example, the first plunger 6 can be connected to the first through hole 4 by an interference fit. The size of the interference fit determines the ease of adjusting the first plunger 6, and the interference fit can be determined experimentally.

[0071] like Figure 3 , Figure 5 As shown, optionally, the first connecting hole 602 is configured as an elongated hole extending along the length direction of the first plunger 6. The length direction of the first plunger 6 refers to the axial direction of the first plunger 6, which is also the extension direction of the first flow channel 601. By configuring the first connecting hole 602 as an elongated hole extending along the length direction of the first plunger 6, the adjustment range of the heat exchange medium flow rate can be increased when adjusting the position of the first plunger 6 along the first through hole 4. The elongated hole can be a slotted hole.

[0072] In some embodiments of the present invention, the second plunger 7 is arbitrarily connected to the second through hole 5 along the axial direction of the second through hole 5, so that at least a portion of the orifice of the second connecting hole 702 can enter the second through hole 5. With this configuration, by adjusting the relative position of the second plunger 7 and the second through hole 5, the orifice of the second connecting hole 702 can enter the second through hole 5, meaning that a portion of the orifice of the second connecting hole 702 is covered by the wall of the second through hole 5. This reduces the cross-section of the heat exchange medium flow channel, thereby achieving the effect of regulating the heat exchange medium flow rate.

[0073] Optionally, the second plunger 7 is threadedly connected to the second through hole 5. Specifically, as shown in the example... Figure 4 , Figure 7As shown, the second through hole 5 is a threaded hole, and the second plunger 7 has an external thread that engages with the threaded connection of the second through hole 5. The second plunger 7 is screwed into the second through hole 5. The position of the second plunger 7 can be adjusted along the axial direction of the second through hole 5 by screwing it. Of course, the second plunger 7 is not limited to being threadedly connected to the second through hole 5. For example, the second plunger 7 can be connected to the second through hole 5 by an interference fit. The size of the interference fit determines the ease of adjusting the second plunger 7, and the interference fit can be determined experimentally.

[0074] like Figure 4 , Figure 7 As shown, optionally, the second connecting hole 702 is configured as an elongated hole extending along the length direction of the second plunger 7. The length direction of the second plunger 7 refers to its axial direction, which is also the extension direction of the second flow channel 701. By configuring the second connecting hole 702 as an elongated hole extending along the length direction of the second plunger 7, the adjustment range of the heat exchange medium flow rate can be increased when adjusting the position of the second plunger 7 along the second through hole 5. The elongated hole can be a slotted hole.

[0075] refer to Figure 3 As shown, in some embodiments of the present invention, one end of the rod 3 connected to the first plunger 6 is provided with a light hole into which the first plunger 6 extends. For example, one end of the first plunger 6 connected to the rod 3 is a light rod, which extends into the light hole. By extending the first plunger 6 into the light hole of the rod 3, on the one hand, the first plunger 6 can provide radial positioning for the rod 3, and on the other hand, the rod 3 can expand and contract along the first plunger 6 when heated and elongated, thereby giving the rod 3 room for expansion and contraction, and avoiding the problem of stress generated during the elongation of the rod 3 causing damage to the connection structure or the rod 3.

[0076] refer to Figure 4 As shown, in some embodiments of the present invention, one end of the rod 3 connected to the second plunger 7 is provided with a threaded hole that engages with the threaded hole of the second plunger 7. For example, one end of the second plunger 7 connected to the rod 3 is provided with an external thread that engages with the threaded hole of the rod 3. By threading the rod 3 to the second plunger 7, a better fixing effect can be achieved for the rod 3.

[0077] refer to Figure 3 , Figure 5 As shown, in some embodiments of the present invention, the end of the first plunger 6 away from the reaction space extends out of the first through hole 4, and the portion of the first plunger 6 extending out of the first through hole 4 is provided with a shoulder 603, which is used to abut against the side of the first mounting plate 1 away from the reaction space. With this configuration, when the first plunger 6 is installed in the first through hole 4, the shoulder 603 abuts against the first mounting plate 1, thereby enabling the first plunger 6 to be positioned and having a defined installation position.

[0078] Optionally, to facilitate the use of tools to tighten the first plunger 6, such as... Figure 5 and Figure 6 As shown, a first polygonal hole 604 is provided at the end of the first flow channel 601 away from the installation space. For example, the first polygonal hole 604 can be a hexagonal hole to facilitate the tightening of the first plunger 6 using an Allen wrench. Alternatively, parallel planes can be machined on both sides of the outer circumferential wall of the shoulder 603 to facilitate the engagement of a wrench with the two planes, thereby tightening the first plunger 6.

[0079] refer to Figure 4 , Figure 7 As shown, the portion of the second plunger 7 located in the reaction space is equipped with a collar 703. The two ends of the collar 703 are respectively used to abut against the second mounting plate 2 and the rod 3. This arrangement allows the second plunger 7 to be positioned by abutting against the second mounting plate 2, thus giving the second plunger 7 a defined installation position. Similarly, the rod 3 can be positioned by abutting against the collar 703, thus giving the rod 3 a defined installation position.

[0080] Optionally, to facilitate the use of tools to tighten the second plunger 7, such as... Figure 7 , Figure 8 As shown, a second polygonal hole 704 is provided at one end of the first plunger 6 located within the reaction space. For example, the second polygonal hole 704 can be a hexagonal hole to facilitate tightening the first plunger 6 using an Allen wrench. Alternatively, parallel planes can be machined on both sides of the outer circumferential wall of the collar 703 to facilitate engaging the wrench with the two planes, thereby tightening the second plunger 7.

[0081] In some embodiments provided by the present invention, the reaction apparatus further includes a gasket.

[0082] A gasket is provided between the shoulder 603 and the first mounting plate 1. By increasing or decreasing the number of gaskets or replacing them with gaskets of different thicknesses, the axial position of the first plunger 6 in the first through hole 4 can be accurately adjusted, thereby precisely regulating the flow rate of the heat exchange medium.

[0083] A gasket is provided between the collar 703 and the second mounting plate 2. By increasing or decreasing the number of gaskets or replacing them with gaskets of different thicknesses, the axial position of the second plunger 7 in the second through hole 5 can be accurately adjusted, thereby precisely regulating the flow rate of the heat exchange medium.

[0084] In some embodiments of the present invention, the reaction apparatus further includes a detection device. The detection device is connected to the rod 3 and is used to detect parameter information of the rod 3. For example, the detection device can be a temperature sensor used to detect the temperature information of the rod 3, such as a temperature sensor including but not limited to a thermocouple. For example, when conducting nuclear reaction simulation experiments using the reaction apparatus, by setting multiple detection devices along the length of the rod 3, the surface temperature distribution of the rod 3 can be measured, thereby enabling analysis and research on issues such as the gas flow characteristics and heat transfer characteristics of the rod bundle core structure.

[0085] The cable of the detection device is led out through the first connecting hole 602 and the first flow channel 601. Alternatively, when the first flow channel 601 is through-hole, the detection device can be installed at the end of the first flow channel 601 near the rod 3, and the cable of the detection device can be led out directly from the first flow channel 601. Alternatively, the cable of the detection device is led out through the second connecting hole 702 and the second flow channel 701. Alternatively, when the second flow channel 701 is through-hole, the detection device can be installed at the end of the second flow channel 701 near the rod 3, and the cable of the detection device is led out from the second flow channel 701. With this configuration, it is not necessary to set wiring through holes on the first mounting plate 1 and the second mounting plate 2. On the one hand, this avoids occupying the mounting space of the rod 3; on the other hand, it eliminates the need to consider the sealing problem of the wiring through holes; and it also ensures that the structure of the mounting plate is simple, easy to process, and has higher strength.

[0086] In some embodiments of the present invention, the rod 3 is a fuel rod or an electric heating rod. When the rod 3 is an electric heating rod, the cable of the electric heating rod is led out through the first connecting hole 602 and the first flow channel 601. Alternatively, when the first flow channel 601 is through-connected and the cable of the electric heating rod is located at one end near the first plunger 6, the cable of the electric heating rod can be led out directly from the first flow channel 601. Alternatively, the cable of the electric heating rod is led out through the second connecting hole 702 and the second flow channel 701. Alternatively, when the second flow channel 701 is through-connected and the cable of the electric heating rod is located at one end near the second plunger 7, the cable of the electric heating rod can be led out from the second flow channel 701. This configuration eliminates the need for wiring through-holes on the first mounting plate 1 and the second mounting plate 2. On the one hand, it avoids the wiring through-holes occupying the mounting space of the rod 3; on the other hand, it eliminates the need to consider the sealing problem of the wiring through-holes; furthermore, it ensures a simple structure of the mounting plate, facilitating processing and increasing strength.

[0087] In some embodiments of the present invention, the reaction apparatus further includes a manifold 8. The two ends of the manifold 8 are connected to a first mounting plate 1 and a second mounting plate 2, respectively, and the rod 3 is disposed inside the manifold 8. By providing the manifold 8, during the operation of the reaction apparatus, the heat exchange medium can exchange heat with the rod 3 within the manifold 8. The presence of the manifold 8 reduces the diffusion space of the heat exchange medium, allowing the heat exchange medium to more fully contact and exchange heat with the rod 3.

[0088] Optionally, the manifold 8 is provided with a first flange 801 and a second flange 802 at both ends, and the manifold 8 is connected to the first mounting plate 1 through the first flange 801 and to the second mounting plate 2 through the second flange 802. For example, the first flange 801 and the first mounting plate 1, as well as the second flange 802 and the second mounting plate 2, are connected by threaded fasteners.

[0089] In some embodiments of the present invention, sealing elements 9 are provided between the manifold 8 and the first mounting plate 1, and between the manifold 8 and the second mounting plate 2. Specifically, a sealing element 9 is provided between the mating surfaces of the first flange 801 and the first mounting plate 1 of the manifold 8, and between the second flange 802 and the second mounting plate 2 of the manifold 8. This arrangement can prevent the heat exchange medium from leaking between the mating surfaces of the first flange 801 and the first mounting plate 1, or between the second flange 802 and the second mounting plate 2. Optionally, the sealing element 9 includes, but is not limited to, a graphite sealing ring.

[0090] refer to Figure 12 , Figure 13 As shown, in some embodiments of the present invention, the reaction apparatus further includes a heat insulation layer 10. The heat insulation layer 10 is fitted onto the outside of the manifold 8. This arrangement prevents heat loss from the manifold 8. Optionally, the heat insulation layer 10 can be thermal insulation cotton, which can be fixed using stainless steel clamps.

[0091] refer to Figure 1 As shown, in some embodiments of the present invention, the reaction apparatus further includes a housing 11. A first mounting plate 1 and a second mounting plate 2 are both installed inside the housing 11. The housing 11 has a first through-hole 113 and a second through-hole 114 for the heat exchange medium to enter and exit. The first through-hole 113 is located on the side of the first mounting plate 1 away from the reaction space, and the second through-hole 114 is located on the side of the second mounting plate 2 away from the reaction space. This arrangement allows the housing 11 to provide thermal insulation.

[0092] Furthermore, the housing 11 is provided with a wiring port 115. By providing the wiring port 115, the cables of the detection device and the electric heating rod can be led out from the wiring port 115. Furthermore, there are multiple wiring ports 115. Providing multiple wiring ports 115 facilitates the convenient routing of cables.

[0093] Optionally, the outer casing 11 is provided with a mounting base 1123, and the outer casing 11 can be connected and fixed to a bracket or the like via the mounting base 1123. During use, the first mounting plate 1 is located above the second mounting plate 2, and the heat exchange medium is introduced through the first through-hole 113. The heat exchange medium enters the reaction space through the first flow channel 601 and the first connecting hole 602. After exchanging heat with the rod 3, the heat exchange medium is discharged from the reaction space through the second connecting hole 702 and the second flow channel 701, and finally discharged from the second through-hole 114.

[0094] refer to Figure 1 , Figure 10 and Figure 11 As shown, in some embodiments provided by the present invention, the outer casing 11 includes a first casing 111 and a second casing 112. The first casing 111 and the second casing 112 are detachably connected, for example, the first casing 111 and the second casing 112 are connected by threaded fasteners. The first mounting plate 1 and the second mounting plate 2 are both installed inside the second casing 112, the first through-hole 113 is provided on the first casing 111, and the second through-hole 114 is provided on the second casing 112.

[0095] This configuration facilitates the installation of the first mounting plate 1, the second mounting plate 2, and the rod 3 into the interior of the outer casing 11.

[0096] refer to Figure 1 As shown, in some embodiments provided by the present invention, the inner wall of the outer casing 11 is provided with a first annular structure 1121 and a second annular structure 1122. The first annular structure 1121 is used to support the first mounting plate 1; for example, the first annular structure 1121 can be welded to the inner wall of the outer casing 11. The second annular structure 1122 is used to support the second mounting plate 2; for example, the second annular structure 1122 can be welded to the inner wall of the outer casing 11. The first mounting plate 1 is connected to the first annular structure 1121 by fasteners. The fasteners can be threaded fasteners, including but not limited to bolts and screws.

[0097] Optionally, the first housing 111 includes a cylindrical body 1111 and an end cap 1112, wherein a first end of the cylindrical body 1111 is used to connect to the second housing 112, and a second end of the cylindrical body 1111 is detachably connected to the end cap 1112. A wiring port 115 is provided on the cylindrical body 1111. With this configuration, when leading the cable from inside the housing 11 to outside the housing 11, the end cap 1112 can be opened, and then the cable can be routed and threaded, which is more convenient for operation.

[0098] Optionally, the reaction apparatus further includes a sleeve 12. The sleeve 12 passes through the wiring port 115, with one end extending into the housing 11 and the other end extending out of the housing 11 from the wiring port 115. Cables can be led out through the sleeve 12. A sealing structure is provided between the cable and the sleeve 12. For example, the sealing structure can be sealant filled inside the sleeve 12. This arrangement prevents airflow leakage from the sleeve 12, and by providing the sleeve 12, the connection length between the cable and the sleeve 12 is longer, improving the sealing effect when filling with sealant.

[0099] Optionally, the sleeve 12 can be connected to the housing 11 by welding. However, the sleeve 12 is not limited to being connected to the housing 11 by welding. For example, the reaction apparatus may also include a nut 13. Figure 14 As shown, the sleeve 12, located inside the housing 11, has a flange at one end, which abuts against the inner wall of the housing 11. The portion of the sleeve 12 located outside the housing 11 has external threads, and the nut 13 connects to these threads, thereby fixing the sleeve 12 within the wiring port 115. Furthermore, the reaction device also includes gaskets 14, which are provided between the flange and the inner wall of the housing 11, and between the nut 13 and the outer wall of the housing 11. By providing gaskets, the gap between the sleeve 12 and the wiring port 115 can be sealed.

[0100] It should be noted that in some embodiments provided by the present invention, the features of the above embodiments can be combined to obtain a reaction device that simultaneously has all the above features. For example, a reaction device includes a first mounting plate 1, a second mounting plate 2, a first plunger 6, a second plunger 7, a manifold 8, a heat insulation layer 10, a gasket, a detection device, and a housing 11.

[0101] The first mounting plate 1 and the second mounting plate 2 are spaced together to form a reaction space for accommodating the rod 3. The first mounting plate 1 has a first through hole 4, and the second mounting plate 2 has a second through hole 5. A first plunger 6 connects one end of the rod 3 to the first through hole 4. The end of the first plunger 6 connected to the first through hole 4 has a first flow channel 601 extending into the reaction space. The sidewall of the first plunger 6 has a first connecting hole 602 connecting the first flow channel 601 and the reaction space, allowing the heat exchange medium to enter and exit the reaction space through the first flow channel 601 and the first connecting hole 602. A second plunger 7 connects the other end of the rod 3 to the second through hole 5. The end of the second plunger 7 connected to the second through hole 5 has a second flow channel 701 extending into the reaction space. The sidewall of the second plunger 7 has a second connecting hole 702 connecting the second flow channel 701 and the reaction space, allowing the heat exchange medium to flow into and out of the reaction space through the second connecting hole 702 and the second flow channel 701.

[0102] The first plunger 6 is threadedly connected to the first through hole 4, allowing at least a portion of the opening of the first connecting hole 602 to enter the first through hole 4. The second plunger 7 is threadedly connected to the second through hole 5, allowing at least a portion of the opening of the second connecting hole 702 to enter the second through hole 5. The end of the first plunger 6 furthest from the reaction space extends out of the first through hole 4 and has a shoulder 603 for abutting against the side of the first mounting plate 1 furthest from the reaction space. A gasket is provided between the shoulder 603 and the first mounting plate 1. The portion of the second plunger 7 located in the reaction space has a collar 703, with both ends of the collar 703 abutting against the second mounting plate 2 and the rod 3, respectively. A gasket is provided between the collar 703 and the second mounting plate 2.

[0103] A sealing element 9 is provided between the collector cylinder 8 and the first mounting plate 1, and between the collector cylinder 8 and the second mounting plate 2.

[0104] Both the first mounting plate 1 and the second mounting plate 2 are installed inside the outer casing 11. The outer casing 11 has a first through-hole 113 and a second through-hole 114 for the heat exchange medium to enter and exit. The first through-hole 113 is located on the side of the first mounting plate 1 away from the reaction space, and the second through-hole 114 is located on the side of the second mounting plate 2 away from the reaction space. The outer casing 11 includes a first shell 111 and a second shell 112, which are detachably connected. Both the first mounting plate 1 and the second mounting plate 2 are installed inside the second shell 112. The first through-hole 113 is located on the first shell 111, and the second through-hole 114 is located on the second shell 112. The inner wall of the outer casing 11 has a first annular structure 1121 for supporting the first mounting plate 1 and a second annular structure 1122 for supporting the second mounting plate 2. The first mounting plate 1 is connected to the first annular structure 1121 by threaded fasteners. The first housing 111 includes a cylindrical body 1111 and an end cap 1112, wherein one end of the cylindrical body 1111 is used to connect to the second housing 112, and the second end of the cylindrical body 1111 is detachably connected to the end cap 1112. The cylindrical body 1111 is provided with a wiring port 115 for cables to pass through.

[0105] The detection device is connected to the rod 3 and is used to detect the parameter information of the rod 3. The cable of the detection device is led out of the reaction space through the first connecting hole 602 and the first flow channel 601, or through the first flow channel 601, or through the second connecting hole 702 and the second flow channel 701, or through the second flow channel 701. After the cable of the detection device is led out of the reaction space, it is led out of the outer casing 11 through the wiring port 115 of the outer casing 11.

[0106] The rod 3 is either a fuel rod or an electric heating rod. The cable of the electric heating rod is led out of the reaction space through the first connecting hole 602 and the first flow channel 601, or through the first flow channel 601, or through the second connecting hole 702 and the second flow channel 701, or through the second flow channel 701. After the cable of the electric heating rod is led out of the reaction space, it is then led out of the outer casing 11 through the wiring port 115.

[0107] The installation steps of the reaction device in the above embodiments include:

[0108] Tighten the second plunger 7 to the side of the second mounting plate 2 near the mounting space, and thread the rod 3 to the second plunger 7.

[0109] The manifold 8 is fitted onto the outside of the rod 3, and the manifold 8 is connected to the second mounting plate 2.

[0110] The insulation layer 10 is fitted onto the outside of the manifold 8.

[0111] Pass the cable of the electric heating rod and / or the detection device through the first through hole 4 of the first mounting plate 1.

[0112] Pass the cables of the electric heating rod and / or the detection device through the corresponding first plunger 6.

[0113] The first plunger 6 is screwed onto the side of the first mounting plate 1 away from the mounting space, and the first plunger 6 is inserted into the light hole of the rod 3.

[0114] Connect the first mounting plate 1 to the collector cylinder 8.

[0115] The first mounting plate 1 is placed on the first annular structure 1121 of the second housing 112, and the second mounting plate 2 is placed on the second annular structure 1122. The first mounting plate 1 and the first annular structure 1121 are connected by threaded fasteners.

[0116] Connect the cylinder 1111 to the second housing 112.

[0117] Lead the cables of the electric heating rod and / or detection device out from the wiring port 115 of the cylinder 1111.

[0118] Connect the end cap 1112 to the cylinder 1111.

[0119] 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reaction apparatus, characterized in that, include: A first mounting plate (1) and a second mounting plate (2) are spaced together to form a reaction space for accommodating a rod (3). The first mounting plate (1) is provided with a first through hole (4), and the second mounting plate (2) is provided with a second through hole (5). The first plunger (6) is connected to one end of the first through hole (4) and the rod (3). The first plunger (6) is provided with a first flow channel (601) extending into the reaction space at one end connected to the first through hole (4). The side wall of the first plunger (6) is provided with a first connecting hole (602) connecting the first flow channel (601) and the reaction space, so that the heat exchange medium can enter and exit the reaction space through the first flow channel (601) and the first connecting hole (602). The second plunger (7) connects the second through hole (5) to the other end of the rod (3). The second plunger (7) is provided with a second flow channel (701) extending into the reaction space at one end connected to the second through hole (5). The side wall of the second plunger (7) is provided with a second connecting hole (702) connecting the second flow channel (701) and the reaction space, so that the heat exchange medium can flow into and out of the reaction space through the second connecting hole (702) and the second flow channel (701). During the operation of the reaction device, the heat exchange medium enters the reaction space through the first flow channel (601) and the first connecting hole (602) and exchanges heat with the rod (3). After heat exchange, the heat exchange medium is discharged from the reaction space through the second connecting hole (702) and the second flow channel (701). Alternatively, the heat exchange medium can enter the reaction space through the second plunger (7) and be discharged from the reaction space through the first plunger (6).

2. The reaction apparatus according to claim 1, characterized in that, Along the axial direction of the first through hole (4), the first plunger (6) is positionally connected to the first through hole (4) so ​​that at least a portion of the opening of the first connecting hole (602) can enter the first through hole (4). And / or, along the axial direction of the second through hole (5), the second plunger (7) is positionally adjustable to the second through hole (5) so that at least a portion of the orifice of the second connecting hole (702) can enter the second through hole (5).

3. The reaction apparatus according to claim 2, characterized in that, The first plunger (6) is threaded or interference-fitted to the first through hole (4); And / or, the second plunger (7) is threaded or interference-fitted to the second through hole (5).

4. The reaction apparatus according to claim 2, characterized in that, The first connecting hole (602) is configured as an elongated hole extending along the length direction of the first plunger (6); And / or, the second connecting hole (702) is configured as an elongated hole extending along the length direction of the second plunger (7).

5. The reaction apparatus according to claim 2, characterized in that, The first plunger (6) extends out of the first through hole (4) at one end away from the reaction space and is provided with a shoulder (603), which is used to abut against the side of the first mounting plate (1) away from the reaction space; And / or, the portion of the second plunger (7) located in the reaction space is provided with a collar (703), the two ends of which are respectively used to abut against the second mounting plate (2) and the rod (3).

6. The reaction apparatus according to claim 5, characterized in that, It also includes a gasket, which is provided between the shoulder (603) and the first mounting plate (1) and / or between the collar (703) and the second mounting plate (2).

7. The reaction apparatus according to any one of claims 1-6, characterized in that, The rod (3) is provided with a light hole at one end connected to the first plunger (6) for the first plunger (6) to extend into; And / or, one end of the rod (3) that connects to the second plunger (7) is provided with a threaded hole that is threadedly engaged with the second plunger (7).

8. The reaction apparatus according to any one of claims 1-6, characterized in that, It also includes a detection device, which is connected to the rod (3) and is used to detect the parameter information of the rod (3). The cable of the detection device is led out of the reaction space through the first connecting hole (602) and the first flow channel (601), or through the first flow channel (601), or through the second connecting hole (702) and the second flow channel (701), or through the second flow channel (701).

9. The reaction apparatus according to any one of claims 1-6, characterized in that, The rod (3) is a fuel rod or an electric heating rod, wherein the cable of the electric heating rod is led out of the reaction space through the first connecting hole (602) and the first flow channel (601), or through the first flow channel (601), or through the second connecting hole (702) and the second flow channel (701), or through the second flow channel (701).

10. The reaction apparatus according to any one of claims 1-6, characterized in that, It also includes a collector cylinder (8), the two ends of which are connected to the first mounting plate (1) and the second mounting plate (2) respectively, and the rod (3) is disposed inside the collector cylinder (8).

11. The reaction apparatus according to claim 10, characterized in that, A sealing element (9) is provided between the collector cylinder (8) and the first mounting plate (1) and between the collector cylinder (8) and the second mounting plate (2).

12. The reaction apparatus according to claim 10, characterized in that, It also includes a heat insulation layer (10), which is fitted on the outside of the manifold (8).

13. The reaction apparatus according to any one of claims 1-6, characterized in that, It also includes a housing (11), in which the first mounting plate (1) and the second mounting plate (2) are both installed. The housing (11) is provided with a first through port (113) and a second through port (114) for the heat exchange medium to enter and exit. The first through port (113) is located on the side of the first mounting plate (1) away from the reaction space, and the second through port (114) is located on the side of the second mounting plate (2) away from the reaction space.

14. The reaction apparatus according to claim 13, characterized in that, The outer casing (11) includes a first casing (111) and a second casing (112), the first casing (111) and the second casing (112) are detachably connected, the first mounting plate (1) and the second mounting plate (2) are both installed inside the second casing (112), the first through-hole (113) is provided on the first casing (111), and the second through-hole (114) is provided on the second casing (112).

15. The reaction apparatus according to claim 13, characterized in that, The inner wall of the outer casing (11) is provided with a first annular structure (1121) for supporting the first mounting plate (1) and a second annular structure (1122) for supporting the second mounting plate (2). The first mounting plate (1) is connected to the first annular structure (1121) by fasteners.

16. A nuclear reactor, characterized in that, Includes the reaction apparatus as described in any one of claims 1-15.

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