Upper reactor internals simulation device

Abstract

The utility model discloses an upper reactor internal simulation device which comprises a supporting base, a thermocouple conduit simulation assembly arranged on the supporting base, a thermocouple conduit joint simulation piece, six upper guide cylinder simulation pieces and a thermocouple column simulation piece, the thermocouple conduit simulation assembly is connected with the thermocouple column simulation piece, and the thermocouple conduit joint simulation piece is connected to the thermocouple conduit simulation assembly and can be used for simulating the working position of one maintenance object, namely a thermocouple conduit joint welding seam, in the welding seam maintenance work of the upper reactor internals. The six upper guide cylinder simulation pieces and the thermocouple column simulation piece and the specific relative position relation thereof can be used for simulating the working position of another maintenance object-guide cylinder locking cup welding seam in the upper reactor internal welding seam maintenance work, so that the upper reactor internal welding seam maintenance work environment is simulated offline; and compared with an upper reactor internals prototype, the structure is simplified, and actual production and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of reactor upper internal components, in particular to an upper internal component simulation device. Background Art

[0002] The reactor consists of upper internals and lower internals. The upper internals include an upper support plate, a thermocouple detector arranged on the upper support plate, a thermocouple column, an upper guide cylinder, a thermocouple tube, a thermocouple tube joint, etc. The thermocouple column is a pipe support column for the thermocouple detector. The number of upper guide cylinders is generally 61 groups. The number of thermocouple columns is generally 4, each of which is equipped with many thermocouple detectors, and the thermocouple tube is connected to the thermocouple column. The thermocouple detector enters the upper core plate through the thermocouple column and the thermocouple tube connected to the thermocouple column to measure the temperature of the reactor circulating water. Because the number of thermocouple tubes is large and long, multiple pipe sections are connected together through thermocouple tube joints to form a thermocouple tube. There is a locking gasket on the thermocouple tube joint, and the locking gasket is reinforced by welding process to ensure the sealing of the pipeline. In order to ensure the safe operation of the reactor, it is necessary to regularly inspect and maintain the upper internals, including the upper internals weld maintenance work. One of the maintenance objects of the upper internal component weld maintenance work is the weld on the guide tube locking cup located on the bottom flange of the upper guide tube (referred to as the guide tube locking cup weld), and the other maintenance object is the weld on the locking gasket of the thermocouple tube joint (referred to as the thermocouple tube joint weld).

[0003] In order to successfully complete the weld repair work of the upper internals, how to provide technical personnel with skills training is an important part. In practice, the upper internals have many parts and components, the working surface is limited, and they are in an irradiated environment. Close contact with the upper internals is harmful to personnel. Therefore, the operational drills and process assessments of the weld repair work of the upper internals are greatly hindered. In addition, when developing some automated equipment for the weld repair work of the upper internals, these equipment need to be tested for reliability before being put into use. However, before the equipment is verified to be qualified, for safety reasons, the testing of these equipment cannot be carried out directly in the space of the upper internals. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a simulation device which can be used for operation drill and process evaluation of upper pile internal component weld repair work and for testing automation equipment of upper pile internal component weld repair work.

[0005] The technical solution adopted by the utility model to solve the technical problem is: to provide an upper internal component simulation device, which has an x ​​direction and a y direction perpendicular to each other, and comprises a support base, a thermocouple conduit simulation assembly arranged on the support base, a thermocouple conduit joint simulation piece, six upper guide cylinder simulation pieces, and a thermocouple column simulation piece;

[0006] The thermocouple conduit simulation component is connected to the thermocouple column simulation component, and the thermocouple conduit joint simulation component is connected to the thermocouple conduit simulation component;

[0007] One of the upper guide cylinder simulation parts is a first simulation part, four of the upper guide cylinder simulation parts are second simulation parts, and one of the upper guide cylinder simulation parts is a third simulation part; two of the second simulation parts are arranged on opposite sides of the first simulation part along the x-direction, and the other two of the second simulation parts are arranged on opposite sides of the first simulation part along the y-direction, the third simulation part is arranged on one side of the first simulation part and is located between two of the second simulation parts, and the thermocouple column simulation part is arranged on one side of the first simulation part and is located between the other two of the second simulation parts.

[0008] Preferably, the long axes of at least two of the thermocouple tube joint simulation pieces are perpendicular to each other.

[0009] Preferably, the upper internals simulation device further comprises at least one bracket;

[0010] The thermocouple conduit simulation assembly includes at least one thermocouple conduit simulation part, one end of each of the thermocouple conduit simulation parts is connected to the thermocouple column simulation part, and each of the thermocouple conduit simulation parts is connected to at least one of the thermocouple conduit joint simulation parts;

[0011] At least one of the thermocouple tube simulation parts includes a horizontal tube section parallel to the xy plane, and each of the brackets is connected to at least one of the horizontal tube sections of the thermocouple tube simulation part.

[0012] Preferably, the number of the thermocouple catheter simulation parts is at least two, and the horizontal pipe sections of at least two of the thermocouple catheter simulation parts are connected to the same bracket;

[0013] At least two thermocouple conduit joint simulation parts are respectively located on the horizontal pipe sections of at least two thermocouple conduit simulation parts connected to the same support.

[0014] Preferably, the upper internal component simulation device further comprises at least one sealing seat connected to the support base, and at least one end of the thermocouple tube simulation component away from the thermocouple column simulation component is connected to the sealing seat.

[0015] Preferably, at least one of the thermocouple conduit joint simulation components is surrounded by four of the upper guide cylinder simulation components.

[0016] Preferably, each of the upper guide cylinder simulation components includes a hollow straight cylinder section, a flange and a plurality of locking cup simulation components, the flange is connected to the supporting base, the straight cylinder section is detachably connected to the flange, and the locking cup simulation component is connected to the flange.

[0017] Preferably, each of the upper guide cylinder simulation components further comprises a driving rod simulation component connected to an end of the straight cylinder section away from the flange.

[0018] Preferably, the upper in-piles component simulation device further comprises a counterweight base, and the supporting base is mounted on the counterweight base.

[0019] Preferably, the support base is a support plate, which is provided with seven through holes, and the thermocouple column simulation component and each of the upper guide cylinder simulation components are respectively connected to a position on the support base corresponding to one of the through holes.

[0020] The utility model has at least the following beneficial effects: the thermocouple conduit joint simulation part is connected to the thermocouple conduit simulation assembly, and can be used to simulate the working position of one of the maintenance objects in the upper pile internal component weld maintenance work - the thermocouple conduit joint weld. The six upper guide cylinder simulation parts and one thermocouple column simulation part and their specific relative position relationship can be used to simulate the working position of another maintenance object in the upper pile internal component weld maintenance work - the guide cylinder locking cup weld, thereby realizing the offline simulation of the upper pile internal component weld maintenance working environment, and compared with the upper pile internal component prototype, the number of upper guide cylinders and thermocouple columns is reduced, thereby simplifying the structure and facilitating actual production and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the utility model, the utility model will be further described below in conjunction with the accompanying drawings and embodiments, in which:

[0022] Figure 1 It is a schematic diagram of the structure of a reactor upper internal component in the prior art from a top view;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of an upper pile internal component simulation device according to an embodiment of the utility model;

[0024] Figure 3 yes Figure 2 The enlarged structural diagram of part A in the middle;

[0025] Figure 4yes Figure 2 The enlarged structural diagram of part B in the middle;

[0026] Figure 5 yes Figure 2 A schematic diagram of the structure from a top-down perspective;

[0027] Figure 6 yes Figure 2 A schematic diagram of the exploded structure of an upper guide cylinder simulation part of an upper internals simulation device shown;

[0028] Figure 7 yes Figure 2 A schematic structural diagram of the support base of the upper in-piles component simulation device is shown. DETAILED DESCRIPTION

[0029] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", "setting" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. When an element is referred to as being "on" or "under" another element, the element can be "directly" or "indirectly" located on the other element, or there may be one or more intermediate elements. The terms "first", "second", "third", etc. are only for the convenience of describing the present technical solution, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third", etc. can explicitly or implicitly include one or more of the features.

[0030] The existing reactor upper internals are in an irradiated environment, which is not conducive to long-term stay of personnel, and is therefore not conducive to the skill training, operation drills and process assessment of upper internals weld maintenance work. Therefore, a simulation device that can simulate the upper internals weld maintenance work environment offline is needed. Figure 1 As shown, a reactor upper internal component in the prior art includes an upper support plate 10, 61 upper guide cylinders 11 arranged on the upper support plate 10, four thermocouple columns (not shown), a plurality of thermocouple tubes (not shown) connected to the thermocouple columns and passed through the plurality of upper guide cylinders 11, a thermocouple detector (not shown) arranged inside the thermocouple tubes, a thermocouple tube joint (not shown) connected between the various tube sections of the thermocouple tubes, etc. Figure 1The four thermocouple column mounting positions 12 are used to install four thermocouple columns. It can be seen that the existing reactor upper internal components have a large number of parts and components, and the piping layout of the thermocouple guide tube is complex and intertwined. If the simulation device is designed according to the prototype of the upper internal components, the structure of the simulation device will be very complicated, which is not conducive to actual production and use. Therefore, the utility model innovatively proposes an upper internal component simulation device, which can simulate the upper internal component weld maintenance working environment offline, and is simplified in structure compared to the upper internal component prototype, which is convenient for actual production and use.

[0031] like Figures 2 to 4 As shown, the upper internal component simulation device (hereinafter referred to as the simulation device) of an embodiment of the utility model has an x ​​direction and a y direction perpendicular to each other, and the x direction and the y direction together define an xy plane, and the xy plane is parallel to the placement surface of the simulation device, and the placement surface refers to the placement surface (equivalent to the horizontal plane) where the simulation device is placed in a natural placement state. The simulation device includes a support base 21, a thermocouple catheter simulation assembly arranged on the support base 21, a thermocouple catheter joint simulation part 24, six upper guide cylinder simulation parts, and a thermocouple column simulation part 22. Specifically:

[0032] The support base 21 provides a foundation for the installation of the thermocouple conduit simulation assembly, the thermocouple conduit joint simulation 24, the upper guide cylinder simulation and the thermocouple column simulation 22. The support base 21 can also simulate the upper support plate in the prototype of the reactor upper internal components.

[0033] The thermocouple conduit simulation assembly is used to simulate the thermocouple conduit piping system in the prototype of the upper reactor internals, and the thermocouple column simulation part 22 is used to simulate the thermocouple column in the prototype of the upper reactor internals. The thermocouple conduit simulation assembly is connected to the thermocouple column simulation part 22, and the thermocouple conduit joint simulation part 24 is connected to the thermocouple conduit simulation assembly, so as to simulate one of the maintenance objects in the upper reactor internals weld maintenance work - the thermocouple conduit joint weld.

[0034] like Figure 1 There are 4 thermocouple columns in the reactor upper internals shown. To simplify the structure, the simulation device of the utility model uses a thermocouple column simulation part 22, combined with the layout of the upper guide cylinder simulation part to simulate the typical working position of the weld repair in the prototype of the reactor upper internals. The layout of the upper guide cylinder simulation part is:

[0035] One of the six upper guide cylinder simulation parts is a first simulation part 231, which is located at the center position of each upper guide cylinder simulation part.

[0036] Four of the six upper guide cylinder simulation members are second simulation members 232, two of which are arranged on opposite sides of the first simulation member 231 along the x direction, and the other two second simulation members 232 are arranged on opposite sides of the first simulation member 231 along the y direction. That is, the four second simulation members 232 and the middle first simulation member 231 are arranged in a cross shape.

[0037] One of the six upper guide cylinder simulations is a third simulation 233, which is disposed on one side of the first simulation 231 and between two of the second simulations 232. The thermocouple column simulation 22 is disposed on one side of the first simulation 231 and between the other two second simulations 232. Specifically, Figure 2 and Figure 5 As shown, the simulation device may also include a d direction, which is a diagonal direction, and the d direction forms an angle of 45° with the x direction and the y direction, and the xyd plane defined by the x direction, the y direction and the d direction is parallel to the placement surface of the simulation device. The first simulation member 231 has exactly four vacancies on the outer side along the d direction, and the thermocouple column simulation member 22 and the third simulation member 233 are respectively arranged at two different vacancies.

[0038] As described in the background technology, one of the maintenance objects of the upper internal component weld maintenance work is the guide cylinder locking cup weld. There are four guide cylinder locking cups ( Figure 1 (not shown), each guide cylinder locking cup has a guide cylinder locking cup weld, so the working position of the guide cylinder locking cup weld repair work is mainly determined by the layout of the upper guide cylinder 11. Figure 1 A first guide cylinder 111, four second guide cylinders 112 and four third guide cylinders 113 are marked in FIG. The more upper guide cylinders 11 there are around a certain upper guide cylinder 11, the more difficult the work at that position is. Figure 1It can be seen that the first guide cylinder 111 is surrounded by the most upper guide cylinders 11, so the first guide cylinder 111 is the position with the greatest difficulty in working. Assuming that the guide cylinder locking cup weld on the first guide cylinder 111 needs to be repaired, the first guide cylinder 111 is used as the target guide cylinder. According to the summary and analysis of practical experience, the physical position interference factors that need to be considered at this time include the four second guide cylinders 112 around the cross direction of the first guide cylinder 111 and the third guide cylinder 113 in the diagonal direction. One third guide cylinder 113 can represent all the physical position interference factors in the diagonal direction of the first guide cylinder 111, and the second guide cylinder 112 is relatively closer to the first guide cylinder 111. Therefore, the four second guide cylinders 112 around the first guide cylinder 111 need to be included in the physical position interference factor considerations. After all the physical position interference factors around the first guide cylinder 111 are determined, the working position with the greatest difficulty in working can be determined. When the working position with the greatest difficulty in working is determined, other working positions with relatively less difficulty in working can be included.

[0039] Please also read Figure 1 and Figure 5 The first simulation element 231 in the simulation device of the present invention corresponds to Figure 1 The position of the first guide cylinder 111 in the middle, the four second simulation members 232 correspond to Figure 1 The third simulation member 233 corresponds to the position of one of the third guide cylinders 113. The thermocouple column simulation member 22 corresponds to Figure 1 That is, when the first simulation component 231 in the simulation device of the utility model is used as the target guide cylinder during the repair of the guide cylinder locking cup weld, the four second guide cylinders 112 in the cross direction around it and the third guide cylinder 113 in the diagonal direction are used as physical position interference factors; the thermocouple column simulation component 22 is used as the physical position interference factor when the guide cylinder locking cup weld is repaired on the second simulation component 232, so that a first simulation component 231, four second simulation components 232, a third simulation component 233 and a thermocouple column simulation component 22 together construct a typical working position when the guide cylinder locking cup weld is repaired.

[0040] In summary, the thermocouple conduit joint simulation part 24 is connected to the thermocouple conduit simulation assembly, and can be used to simulate the working position of one of the maintenance objects in the upper pile internal component weld maintenance work - the thermocouple conduit joint weld. The six upper guide cylinder simulation parts and one thermocouple column simulation part 22 and their specific relative position relationship can be used to simulate the working position of another maintenance object in the upper pile internal component weld maintenance work - the guide cylinder locking cup weld, thereby realizing the offline simulation of the upper pile internal component weld maintenance working environment, and compared with the upper pile internal component prototype, the number of upper guide cylinders 11 and thermocouple columns is reduced, thereby simplifying the structure and facilitating actual production and use.

[0041] Furthermore, due to the complex extension path of the thermocouple conduit in the prototype of the upper reactor internals, the thermocouple conduit usually has pipe sections with different orientations (such as horizontal pipe sections, vertical pipe sections, etc.), so the thermocouple conduit joints on each pipe section also usually have different orientations. Figure 3 and Figure 4 As shown, in some embodiments, in order to make the working position of the thermocouple conduit joint weld closer to reality, such a setting can be adopted: at least two thermocouple conduit joint simulation parts 24 have their respective long axes perpendicular to each other. The long axis of the thermocouple conduit joint can be the center axis in the length direction thereof. The two thermocouple conduit joints with perpendicular long axes can simulate the thermocouple conduit joints on the horizontal pipe section and the vertical pipe section of the thermocouple conduit in the prototype of the upper reactor internal component.

[0042] like Figure 2 As shown, in some embodiments, the upper internal component simulation device further includes at least one bracket 26. The thermocouple conduit simulation assembly includes at least one thermocouple conduit simulation part 25, one end of each thermocouple conduit simulation part 25 is connected to the thermocouple column simulation part 22, and the other end can be directly or indirectly connected to the support base 21, or can be a free end. Since the main research object of the utility model is the weld on the thermocouple conduit joint simulation part 24 on the thermocouple conduit simulation part 25, the connection position and connection form of the other end of the thermocouple conduit simulation part 25 have little effect on the weld position on the thermocouple conduit joint simulation part 24, so the connection position and connection form of the other end of the thermocouple conduit simulation part 25 can be unrestricted. At least one thermocouple conduit joint simulation part 24 is connected to each thermocouple conduit simulation part 25. At least one thermocouple conduit simulation part 25 includes a horizontal pipe section 251 parallel to the xy plane, and each bracket 26 is connected to at least one horizontal pipe section 251 of the thermocouple conduit simulation part 25. This allows for a closer look at the extension path of the thermocouple tubes in the prototype of the reactor's upper internals.

[0043] like Figure 4As shown, in some embodiments, the number of thermocouple conduits is two, and at least two horizontal pipe sections 251 of the thermocouple conduits are connected to the same bracket 26. There are two thermocouple conduit joint simulations 24 respectively located on the horizontal pipe sections 251 of the two thermocouple conduit simulations 25 connected to the same bracket 26. That is, the two thermocouple conduit simulations 25 connected to the same bracket 26 can be simply referred to as the first conduit and the second conduit, one of the thermocouple conduit joint simulations 24 is located on the horizontal pipe section 251 of the first conduit, and the other thermocouple conduit joint simulation 24 is located on the horizontal pipe section 251 of the second conduit. In other embodiments, the number of thermocouple conduit simulations 25 can also be more than two. For example, when the number of thermocouple conduit simulations 25 is three or more, there can be three thermocouple conduit joint simulations 24 respectively located on the horizontal pipe sections 251 of the three thermocouple conduit simulations 25 connected to the same bracket 26. Specifically, after analysis, it is found that some thermocouple conduit joints are arranged in parallel in the prototype of the upper in-pile component. When the weld is repaired, the spacing between adjacent thermocouple conduit joints in the parallel arrangement is small, and the physical position interference factor caused by the thermocouple conduit joint itself needs to be considered; some thermocouple conduit joints exist alone, and the space around them is relatively spacious, and there are no other thermocouple conduit joints causing physical position interference. Therefore, the thermocouple conduit joint simulation parts 24 located on the horizontal pipe sections 251 of at least two thermocouple conduit simulation parts 25 connected to the same bracket 26 can be used as a group of side-by-side thermocouple conduit joint simulation parts 24, which can simulate the physical position interference factor caused by the thermocouple conduit joint itself during the weld repair work, so that the working position of the thermocouple conduit joint weld repair is closer to reality.

[0044] like Figure 2 and Figure 4 As shown, in some embodiments, the simulation device may also have a z direction, which is perpendicular to the xy plane and the xyd plane. The z direction may be a vertical direction. The thermocouple conduit joint simulation members 24 respectively located on the horizontal pipe sections 251 of at least two thermocouple conduit simulation members 25 connected to the same bracket 26 may be aligned in the z direction, that is, the thermocouple conduit joint simulation members 24 respectively located on the horizontal pipe sections 251 of at least two thermocouple conduit simulation members 25 connected to the same bracket 26 may have projections in the z direction that completely overlap.

[0045] like Figure 2As shown, in some embodiments, the upper internal component simulation device further includes at least one sealing seat 27 connected to the support base 21, and at least one end of the thermocouple conduit away from the thermocouple column simulation part 22 is connected to the sealing seat 27. The ends of other thermocouple conduits away from the thermocouple column simulation part 22 may also be free ends. In this way, the extension path of the thermocouple conduits in the prototype of the upper internal component of the reactor can be closer.

[0046] Furthermore, because the path of the thermocouple catheter pipeline system in the prototype of the upper reactor internal component is complex and the number of thermocouple catheter joints is large, when considering the physical position interference factor during the maintenance of the thermocouple catheter joint weld, it is also necessary to consider the physical position interference effect of the upper guide cylinder 11 on the maintenance of the thermocouple catheter joint weld. When one of the thermocouple catheter joints is used as the target welding object, the more upper guide cylinders 11 there are around the thermocouple catheter joint, the more difficult the work is. The position with the greatest difficulty is: there are four upper guide cylinders 11 around a certain thermocouple catheter joint. Therefore, in some embodiments, there are four upper guide cylinder simulations around at least one thermocouple catheter joint simulation 24, so that the working position of the thermocouple catheter joint weld is closer to reality.

[0047] like Figure 6 As shown, in some embodiments, each upper guide cylinder simulation member includes a hollow straight section 2341, a flange 2342 and a plurality of locking cup simulation members 2343, the flange 2342 is connected to the support base 21, the straight section 2341 is detachably connected to the flange 2342, and the locking cup simulation member 2343 is connected to the flange 2342. The straight section 2341 and the flange 2342 can be connected together by bolts 29. That is, the hollow straight section 2341 is used to replace the upper guide cylinder 11 in the prototype of the upper reactor internals, and the components inside the upper guide cylinder 11 in the prototype of the upper reactor internals are omitted, so that the weight of the simulation device can be reduced and the cost can be reduced. In addition, the straight section 2341 is detachably connected to the flange 2342, which is equivalent to splitting the upper guide cylinder 11 in the prototype of the upper reactor internals into two detachable parts, which is convenient for replacing parts. The materials of the locking cup simulation part 2343 and the flange 2342 can be consistent with the corresponding parts in the prototype of the upper reactor internal components.

[0048] like Figure 2 and Figure 6As shown, in some embodiments, each upper guide cylinder simulation also includes a driving rod simulation 2344 connected to one end of the straight cylinder section 2341 away from the flange 2342. The volume size of the driving rod simulation 2344 can be consistent with the driving rod in the prototype of the upper reactor internal component, and the driving rod simulation 2344 has no effect on the working position simulation of the upper reactor internal component weld repair work, and can be made of a lighter material to reduce the weight of the simulation device.

[0049] like Figure 2 As shown, in some embodiments, the upper internal component simulation device further includes a counterweight base 28, and the support base 21 is installed on the counterweight base 28. The counterweight base 28 provides a foundation for the installation of the support base 21, and at the same time provides a certain weight to ensure the stability during the upper internal component weld repair work.

[0050] like Figure 7 As shown, in some embodiments, the support base 21 is a support plate, which is provided with seven through holes 212, and each thermocouple column simulation member 22 and each upper guide cylinder simulation member are respectively connected to a position corresponding to one of the through holes 212 on the support base 21. That is, the position layout of the seven through holes 212 corresponds to the position layout between the first simulation member 231, the second simulation member 232, the third simulation member 233 and the thermocouple column simulation member 22. Bolt holes 2121 are provided around each through hole 212, and the first simulation member 231, the second simulation member 232, the third simulation member 233 and the thermocouple column simulation member 22 can be installed at corresponding positions through the bolt holes 2121.

[0051] It can be understood that the above embodiments only express the preferred implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the patent scope of the utility model. It should be pointed out that, for ordinary technicians in this field, without departing from the concept of the utility model, the above-mentioned technical features can be freely combined, and several deformations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, all equivalent changes and modifications made to the scope of the claims of the utility model should fall within the scope of the claims of the utility model.

Claims

1. An upper internal component simulation device having an x-direction and a y-direction perpendicular to each other, characterized in that: It comprises a support base (21), a thermocouple catheter simulation component arranged on the support base (21), a thermocouple catheter joint simulation component (24), six upper guide cylinder simulation components, and a thermocouple column simulation component (22); The thermocouple conduit simulation component is connected to the thermocouple column simulation component (22), and the thermocouple conduit joint simulation component (24) is connected to the thermocouple conduit simulation component; One of the upper guide cylinder simulation parts is a first simulation part (231), four of the upper guide cylinder simulation parts are second simulation parts (232), and one of the upper guide cylinder simulation parts is a third simulation part (233); two of the second simulation parts (232) are arranged on opposite sides of the first simulation part (231) along the x-direction, and the other two of the second simulation parts (232) are arranged on opposite sides of the first simulation part (231) along the y-direction, the third simulation part (233) is arranged on one side of the first simulation part (231) and is located between two of the second simulation parts (232), and the thermocouple column simulation part (22) is arranged on one side of the first simulation part (231) and is located between the other two of the second simulation parts (232).

2. The upper internal component simulation device according to claim 1, characterized in that: The long axes of at least two of the thermocouple pipe joint simulation parts (24) are perpendicular to each other.

3. The upper internal component simulation device according to claim 1, characterized in that: The upper internal component simulation device further comprises at least one bracket (26); The thermocouple catheter simulation assembly comprises at least one thermocouple catheter simulation part (25), one end of each of the thermocouple catheter simulation parts (25) is connected to the thermocouple column simulation part (22), and each of the thermocouple catheter simulation parts (25) is connected to at least one of the thermocouple catheter joint simulation parts (24); At least one of the thermocouple tube simulation parts (25) comprises a horizontal tube section (251) parallel to the xy plane, and each of the brackets (26) is connected to at least one of the horizontal tube sections (251) of the thermocouple tube simulation part (25).

4. The upper internal component simulation device according to claim 3, characterized in that: The number of the thermocouple tube simulation parts (25) is at least two, and the horizontal tube sections (251) of at least two of the thermocouple tube simulation parts (25) are connected to the same bracket (26); At least two thermocouple conduit joint simulation parts (24) are respectively located on the horizontal pipe sections (251) of at least two thermocouple conduit simulation parts (25) connected to the same support (26).

5. The upper internal component simulation device according to claim 3, characterized in that: The upper in-pile component simulation device further comprises at least one sealing seat (27) connected to the support base (21), and at least one end of the thermocouple tube simulation component (25) away from the thermocouple column simulation component (22) is connected to the sealing seat (27).

6. The upper internal component simulation device according to claim 1, characterized in that: At least one of the thermocouple conduit joint simulation parts (24) is surrounded by four of the upper guide cylinder simulation parts.

7. The upper internal component simulation device according to claim 1, characterized in that: Each of the upper guide cylinder simulation components includes a hollow straight cylinder section (2341), a flange (2342) and a plurality of locking cup simulation components (2343); the flange (2342) is connected to the support base (21); the straight cylinder section (2341) and the flange (2342) are detachably connected; and the locking cup simulation component (2343) is connected to the flange (2342).

8. The upper internal component simulation device according to claim 7, characterized in that: Each of the upper guide cylinder simulation components also includes a driving rod simulation component (2344) connected to one end of the straight cylinder section (2341) away from the flange (2342).

9. The upper internal component simulation device according to any one of claims 1 to 8, characterized in that: The upper internal component simulation device further comprises a counterweight base (28), and the supporting base (21) is mounted on the counterweight base (28).

10. The upper internal component simulation device according to any one of claims 1 to 8, characterized in that: The support base (21) is a support plate having seven through holes (212) thereon, and the thermocouple column simulation component (22) and each of the upper guide cylinder simulation components are respectively connected to a position on the support base (21) corresponding to one of the through holes (212).

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