A storage well for storing containers of high-temperature products, storage and construction method

By designing support components in the storage well to separate it from the product container, a ventilation channel is formed for heat dissipation, which solves the problem of insufficient heat dissipation in existing storage wells, achieves efficient ventilation and heat dissipation and stable support, and improves the safety of the storage area.

CN117095849BActive Publication Date: 2026-05-26CHINA NUCLEAR POWER ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NUCLEAR POWER ENGINEERING CO LTD
Filing Date
2023-07-28
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing storage wells are not heat-dissipating enough when supporting high-temperature product containers, causing heat to be transferred to the outside and reducing the safety of the storage area.

Method used

Design a storage well that uses support components to separate the product container from the inner wall of the well, forming a ventilation channel. This allows for direct heat exchange between the air and the product container, achieving good heat dissipation. At the same time, the support components provide stable support.

Benefits of technology

It improves the safety and stability of the storage area, reduces the temperature inside the storage well through efficient ventilation and heat dissipation, prevents heat transfer to the outside, and ensures the safety of product containers and storage area structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a storage well for storing containers of high-temperature products, comprising a well shaft. The well shaft includes a support member protruding from the inner wall of the well shaft to support the product container and separate the product container from the inner wall of the well shaft. This allows the support member, the inner wall, and the outer wall of the product container to form a ventilation channel for heat exchange. The storage well of this invention not only provides stable support but also excellent ventilation and heat dissipation, effectively improving storage safety. This invention also provides a construction method for the storage well and a method for storing the high-temperature product containers.
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Description

Technical Field

[0001] This invention belongs to the field of nuclear industry technology, specifically relating to a storage well for storing containers of high-temperature products, and a storage and construction method thereof. Background Technology

[0002] In the nuclear industry, molten high-radioactive glass waste is typically vitrified. The resulting vitrified body is then poured into and sealed in a product container. The product container is then temporarily stored in a storage well via a transfer unit, where it provides support and guidance.

[0003] Because high-radioactivity vitrified bodies have high temperatures, storage wells must also have good heat dissipation capabilities to remove heat from within the well and ensure the safety of the product containers and the storage area structure. However, current storage wells often need to be in direct contact with the product containers to provide support and ensure the stability of the containers. This results in the high temperature of the product containers easily being transferred to the sealing cement outside the storage well, reducing the safety of the entire storage area. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art by providing a storage well for storing containers of high-temperature products. This storage well not only has a stable supporting function, but also has good ventilation and heat dissipation function, which can effectively improve storage safety. The present invention also provides a construction method for the storage well for storing containers of high-temperature products and a method for storing containers of high-temperature products.

[0005] The present invention provides a storage well for storing containers of high-temperature products, including a well cylinder. The well cylinder includes a support member that protrudes from the inner wall of the well cylinder to support the product container and separate the product container from the inner wall of the well cylinder. Thus, the support member, the inner wall, and the outer wall of the product container together form a ventilation channel for ventilation to exchange heat with the product container.

[0006] Preferably, the support member includes a support plate and a ring plate. Multiple support plates are provided, and each support plate is evenly distributed on the same circumferential surface around the axis of the well shaft. The ring plate has a ring structure and is connected to each support plate near the inner wall and / or near the product container side, so as to connect the support plates into a whole.

[0007] Preferably, the support plate has a strip-shaped structure, the overall direction of the support plate is arranged along the axial direction of the well shaft, the plane of the support plate is arranged along the radial direction of the well shaft, one side of the support plate is connected to the inner wall surface, and the other side supports the product container.

[0008] Preferably, the end of the support plate facing the top opening of the well shaft is a guide arc surface, and the guide arc surface is an inclined arc surface that gradually slopes downward from the side near the inner wall to the side near the product container, thereby guiding the product container into the well shaft.

[0009] Preferably, the well shaft further includes a base plate, which is connected to the bottom end of the support member near the product container side for supporting the product container. The top surface of the base plate has a conical structure that is adapted to the bottom surface of the product container and serves as the positioning surface of the product container.

[0010] Preferably, the storage well also includes a bottom plate device, which is installed at the bottom of the storage well pit. The bottom end of the well shaft is connected to the bottom plate device. The bottom plate device has ventilation holes, and the upper part of the well shaft has an air outlet. Both the ventilation holes and the air outlet are connected to the ventilation channel. The air outlet is also connected to the pre-set air duct of the storage well pit, so that air can enter the ventilation channel from the ventilation holes, exchange heat with the product container, and then be discharged to the pre-set air duct of the storage well pit through the air outlet.

[0011] Preferably, the base plate device includes a mounting base plate and a pre-embedded component, both of which have openings for ventilation. The pre-embedded component is pre-embedded in the cast-in-place layer at the bottom of the storage well foundation pit. The mounting base plate is anchored to the pre-embedded component and supports the bottom end of the connecting well cylinder, used to adjust the angle of the well cylinder and bear the load of the well cylinder and product container during installation.

[0012] Preferably, the storage well also includes a wellhead device, which is installed at the top of the storage well pit. The upper part of the well shaft is provided with a casing, which is a pipe section that can extend and retract in the vertical direction. The top end of the casing is connected to the wellhead device.

[0013] Preferably, the wellhead device includes a wellhead, a shielding plug, and a top cover. The wellhead is located in the cast-in-place layer at the top of the storage well foundation pit, with the bottom opening connected to the top of the casing. The inner hole of the wellhead is a stepped hole with a diameter that gradually decreases from top to bottom, and the stepped surface of the stepped hole is an inclined surface that gradually slopes downward from the outside to the inside. The shielding plug is connected to the inner hole of the wellhead and its structure is a stepped shaft shape adapted to the inner hole. The top cover is connected to the top opening of the wellhead.

[0014] This invention also provides a method for storing high-temperature product containers, comprising the following steps:

[0015] Open the wellhead device and place each product container into the well shaft in sequence;

[0016] After the product container is placed, close the wellhead device.

[0017] The present invention also provides a method for constructing a storage well for storing containers of high-temperature products, comprising the following steps:

[0018] Excavate the foundation pit for the storage well;

[0019] Install a base plate device at the bottom of the storage well pit;

[0020] The well casing is prefabricated, hoisted onto the base plate device, and installed and connected.

[0021] A wellhead device is installed at the top of the storage well pit, and the well shaft and the wellhead device are connected.

[0022] The storage well provided by this invention for storing containers of high-temperature products uses supporting members to support the product containers, separating them from the inner wall of the well shaft. This prevents direct contact between the product containers and the inner wall, avoiding heat conduction from the product containers and thus protecting the storage pit from high temperatures. This significantly improves storage safety. Simultaneously, the supporting members themselves provide support for the product containers, ensuring their positional stability, thus preserving the function of the storage well itself. Furthermore, because the supporting members separate the product containers from the inner wall of the well shaft, the gap between them serves as a ventilation channel. Airflow through this channel directly contacts the product containers, resulting in highly efficient heat exchange and effective ventilation and heat dissipation. This effectively removes a large amount of heat from the storage well, further enhancing the safety of the product containers and the storage area structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the storage well used to store containers for high-temperature products in Embodiment 1 of the present invention;

[0024] Figure 2 yes Figure 1 A schematic diagram of the cross-section at point AA.

[0025] In the diagram: 1. Well shaft; 11. Support component; 111. Support plate; 112. Ring plate; 113. Guide arc surface; 12. Inner wall surface; 121. Pressure ring; 13. Ventilation channel; 14. Base plate; 15. Sleeve; 2. Product container; 3. Base plate device; 31. Mounting base plate; 32. Embedded component; 321. Embedded plate; 322. Embedded pipe; 323. Anchor bolt; 4. Wellhead device; 41. Wellhead; 411. Anchor; 42. Shielding plug; 421. Lifting point; 43. Top cover; 5. Cast-in-place layer; 51. Primary cast-in-place layer; 52. Secondary cast-in-place layer. Detailed Implementation

[0026] The technical solutions of the invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without creative effort are within the scope of the invention.

[0027] In the description of this invention, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience and simplification of the description and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] In the description of this invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection," "setting," "installation," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] Example 1

[0031] This embodiment provides a storage well for storing high-temperature product containers (high temperature in this text refers to temperatures above 250°C, and the temperature of the outer wall of product container 2 is approximately 235°C), such as... Figure 1 and Figure 2 As shown, the storage wells, constructed using the method described in Example 3, are located in the storage area pit and are suitable for storing high-temperature, high-radioactivity vitrified product containers 2, while also providing ventilation and heat dissipation within the wells. Each storage well can hold several product containers 2, and the entire storage area includes several storage wells. Each storage well includes a well shaft 1, the interior of which is used to house the product containers 2. The well shaft 1 includes a support member 11, which protrudes from the inner wall surface 12 of the well shaft 1 to support the product containers 2 and to separate the product containers 2 from the inner wall surface 12 of the well shaft 1. This allows the support member 11, the inner wall surface 12, and the outer wall of the product containers 2 to form a ventilation channel 13 for ventilation and heat exchange with the product containers 2.

[0032] The product container 2 is supported by the support member 11, which separates the product container 2 from the inner wall surface 12 of the well shaft 1. This prevents the product container 2 from directly contacting the inner wall surface 12, thus avoiding the high temperature of the product container 2 being conducted away through the inner wall surface 12 and affecting the storage pit with high temperature. Therefore, the safety of storage is greatly improved. At the same time, the support member 11 itself can provide support for the product container 2, ensuring the positional stability of the product container 2. Therefore, the function of the storage well itself will not be affected. Because the support member 11 separates the product container 2 from the inner wall surface 12 of the well shaft 1, the gap between the inner wall surface 12 and the product container 2 can be used as a ventilation channel 13. When the air flows through the ventilation channel 13, it directly contacts the product container 2, resulting in extremely high heat exchange efficiency and good ventilation and heat dissipation effect. It can remove a large amount of heat from the storage well at once, further improving the safety of the product container 2 and the structure of the storage area.

[0033] In this embodiment, the support member 11 includes a support plate 111 and a ring plate 112. Multiple support plates 111 are provided, and each support plate 111 is evenly distributed on the same circumferential surface around the axis of the well barrel 1, that is, on the inner wall surface 12 of the well barrel 1. So that when the product container 2 is inside the well barrel 1, it provides uniform and stable support for the product container 2 from the circumferential direction, and avoids the product container 2 from tilting to one side.

[0034] The ring plate 112 has a ring-shaped structure and is connected to each support plate 111 on the side near the inner wall surface 12 and / or on the side near the product container 2, so as to connect each support plate 111 into a whole, making the force among each support plate 111 more uniform, and also strengthening each support plate 111. In this embodiment, there are multiple sets of ring plates 112, and each set of ring plates 112 is arranged along the vertical direction of the well shaft 1, so as to connect and strengthen the support plates 111 at multiple points in the longitudinal direction; the sides of each support plate 111 near the inner wall surface 12 and the sides near the product container 2 are all connected by ring plates 112.

[0035] In this embodiment, both the support plate 111 and the ring plate 112 are made of stainless steel 304. Under the same strength conditions, stainless steel 304 has better economic efficiency. The well shaft 1 is also made of stainless steel 304 and has a depth of approximately 11 meters.

[0036] In this embodiment, the support plate 111 has a strip-shaped structure. The support plate 111 is arranged along the axial direction of the shaft 1, and the plane of the support plate 111 is arranged along the radial direction of the shaft 1. One side of the support plate 111 is connected to the inner wall 12, and the other side supports the product container 2. The support plates 111 are radially distributed in the shaft 1. The support plate 111 adopts a strip-shaped structure, so its volume in the thickness direction is smaller, avoiding the occupation of airflow space. The strip-shaped longitudinal arrangement can also guide the airflow. The vertical planar structure of the support plate 111 can form a vertical ventilation channel from bottom to top, reducing wind resistance, increasing the heat exchange rate, reducing the residence time of ventilation in the shaft, preventing the ventilation gas from overheating and failing to be discharged from the storage shaft in time, and ensuring the stability of the storage area plant structure.

[0037] In this embodiment, the end of the support plate 111 facing the top opening of the well shaft 1 is a guide arc surface 113, and the guide arc surface 113 is an inclined arc surface that gradually slopes downward from the side near the inner wall surface 12 to the side near the product container 2, thereby guiding the product container 2 to enter the well shaft 1, so that the product container 2 automatically returns to the area in the middle of each support plate 111 during the process of entering the well shaft 1, that is, automatic positioning and guidance, which facilitates the product container 2 to enter the storage well, and the arc surface has no sharp corners to avoid damage to the product container.

[0038] In this embodiment, the well shaft 1 further includes a base plate 14, which is connected to the bottom end of the support member 11 near the product container 2 and is used to support the product container 2. The top surface of the base plate 14 has a conical structure, which is adapted to the bottom surface of the product container 2 and serves as the positioning surface of the product container 2. In this embodiment, the conical surface does not refer to a conical surface with a cone tip, but rather to the entire base plate 14 having a frustum-shaped structure with a conical surface. The axis of the conical surface of the base plate 14 coincides with the axis of the well shaft 1, so during the positioning process of the product container 2, automatic centering can be achieved, and it can automatically return to coaxiality with the well shaft 1 under the guidance of the conical surface.

[0039] In this embodiment, the storage well also includes a bottom plate device 3, which is installed at the bottom of the storage well pit. The bottom end of the well shaft 1 is connected to the bottom plate device 3. The bottom plate device 3 has ventilation holes, and the upper part of the well shaft 1 has an air outlet. Both the ventilation holes and the air outlet are connected to the ventilation channel 13. The air outlet is also connected to the preset air duct of the storage well pit so that the air can enter the ventilation channel 13 from the ventilation holes, exchange heat with the product container 2, and then be discharged to the preset air duct of the storage well pit through the air outlet.

[0040] In this embodiment, the base plate device 3 includes a mounting base plate 31 and a pre-embedded component 32, both of which have openings for ventilation. The ventilation air is provided by a factory-specific blower, and the air temperature is room temperature. The mounting base plate 31 has through holes corresponding to the positions of the ventilation channels 13 inside the well shaft 1. The pre-embedded component 32 includes a pre-embedded plate 321 and a pre-embedded pipe 322. The pre-embedded pipe 322 passes through the middle of the pre-embedded plate 321. The bottom pouring layer 5 of the storage well foundation pit includes a primary pouring layer 51 and a secondary pouring layer 52. The pre-embedded component 32 is pre-embedded in the primary pouring layer 51 at the bottom of the storage well foundation pit. During pouring, the pre-embedded pipe 322 retains space within the primary pouring layer 51 for its inner hole as a ventilation hole. The pre-embedded component 32, the mounting base plate 31, and the well shaft 1 together form the storage well air duct. The airflow enters from the pre-embedded pipe 322 of the pre-embedded component 32, enters the well shaft 1 from the through hole of the mounting base plate 31, and flows out from the upper part of the well shaft 1 into the preset air duct, carrying away the heat generated by the high-temperature product container 2. This can eliminate the thermal expansion and contraction effect of the well shaft 1 caused by temperature changes, prevent the material performance of the well shaft 1 from being excessively reduced, and ensure the safety of the entire plant.

[0041] The mounting base plate 31 is anchored to the embedded plate 321 of the embedded component 32. Specifically, the embedded component 32 also includes anchor bolts 323, which are L-shaped and embedded together with the embedded plate 321 in the primary pouring layer 51. The top of the vertical part of the anchor bolts 323 protrudes from the embedded plate 321 to facilitate the anchoring connection of the mounting base plate 31. After anchoring, a secondary pouring layer 52 is poured on the primary pouring layer 51 to fix the mounting base plate 31. The bottom of the well shaft 1 is welded to the mounting base plate 31. During installation, ensure that the bottom end of the well shaft 1 completely covers the through hole on the mounting base plate 31. The mounting base plate 31 can support the bottom end of the connected well shaft 1, and is used to adjust the angle of the well shaft 1 and bear the load of the well shaft 1 and the product container 2 during installation.

[0042] In this embodiment, the storage well also includes a wellhead device 4, which is installed at the top of the storage well pit. To facilitate the expansion and contraction of the well casing 1, a sleeve 15 is provided at the upper part of the well casing 1. The sleeve 15 is a pipe section that can expand and contract in the vertical direction. The top end of the sleeve 15 is connected to the wellhead device 4. Therefore, the connection between the well casing 1 and the wellhead device 4 is active. The wellhead device 4 only limits the circumferential movement of the well casing 1 to prevent lateral swaying caused by earthquakes. At the same time, the vertical direction of the well casing 1 is a free end, so it has thermal expansion and contraction properties, which prevents the product container 2 from causing the well casing 1 to expand and contract due to high temperature. It can also compensate for the installation error between the well casing 1 and the wellhead device 4. In this embodiment, the sleeve 15 is made up of multiple pipe sections that are nested together. The pipe sections can move relative to each other in the axial direction to achieve expansion and contraction. The sleeve 15 passes through the top opening of the inner wall surface 12. A pressure ring 121 is welded to the top opening of the inner wall surface 12 of the well casing 1. The inner side of the pressure ring 121 is welded to the outer side of the sleeve 15.

[0043] In this embodiment, the wellhead device 4 includes a wellhead 41, a shielding plug 42, and a top cover 43. The wellhead 41 is disposed in the cast-in-place layer 5 at the top of the storage well foundation pit, and its bottom opening connects to the top of the casing 15. The bottom opening size of the wellhead 41 is slightly smaller than the upper size of the casing 15, and the bottom of the wellhead 41 extends into the upper part of the casing 15. An anchor 411 is provided at the edge of the bottom opening of the wellhead 41, and the anchor 411 is cast in the cast-in-place layer 5 at the top of the storage well foundation pit.

[0044] The inner hole of the wellhead 41 is a stepped hole with a diameter that gradually decreases from top to bottom, and the stepped surface of the stepped hole is an inclined surface that gradually slopes downward from the outside to the inside. The shielding plug 42 is sealed and connected in the inner hole of the wellhead 41. Its structure is a stepped shaft shape adapted to the inner hole. This stepped structure and the inclined stepped surface can guide the shielding plug 42 when it enters the wellhead 41, which facilitates the positioning of the shielding plug 42, so as to ensure the installation and positioning accuracy of the shielding plug 42 and ensure that the two fit together. In this embodiment, in order to facilitate the lifting of the shielding plug 42, a lifting point 421 is provided on the upper part of the shielding plug 42. The shielding plug 42 includes a concrete plug and a stainless steel sleeve, with the concrete plug covering the stainless steel sleeve. The top cover 43 is sealed and connected to the top opening of the wellhead 41 to further realize the shielding function and prevent foreign objects from falling into the storage well.

[0045] Example 2

[0046] This embodiment provides a method for storing high-temperature product containers, used to store product containers 2 into the storage well in embodiment 1, wherein the storage well can hold seven product containers 2, and the storage method includes the following steps:

[0047] To open the wellhead device 4, specifically: open the top cover 43, and lift the shielding plug 42 away from the wellhead 41 through the lifting point 421, so that the wellhead 41 is open;

[0048] After the wellhead 41 is opened, each product container 2 is placed into the well shaft 1 in sequence. Specifically, the product container 2 is hoisted into the wellhead 41 and enters the bottom of the well shaft 1 along the guide arc surface 113. The inwardly concave arc surface at the bottom of the product container 2 matches the conical surface structure of the base plate 14, thus completing the positioning of the product container 2. At this point, the placement of the first product container 2 is completed. The placement process of the second, third to seventh product containers 2 is the same as that of the first product container 2.

[0049] After the product container 2 is placed, the wellhead device 4 is closed. Specifically, after the seventh product container 2 is placed, the shielding plug 42 is hoisted back to the wellhead 41 through the hoisting point 421, and the top cover 43 is put on. At this point, the stacking and storage of the product container 2 in the storage well is completed.

[0050] Example 3

[0051] The construction method for the storage well used to store containers for high-temperature products in this embodiment is used to construct the storage well in Example 1. The method includes the following steps:

[0052] Excavate the foundation pit for the storage well;

[0053] Install a base plate device 3 at the bottom of the storage well pit; specifically, pour a primary pouring layer 51 at the bottom of the pit, pre-embed pre-embedded components 32 in the primary pouring layer 51, then install the base plate 31 in place, adjust the height and level of the base plate 31 by adjusting the nuts of the anchor bolts 323, tighten the anchor bolts 323 with nuts, and then pour a secondary pouring layer 52.

[0054] A prefabricated shaft 1 (including the support 11, base plate 14, and casing 15) is hoisted onto the base plate device 3 and installed. Specifically, the shaft 1 is lowered from top to bottom onto the mounting base plate 31 using a hoisting device. After the shaft 1 is lowered onto the mounting base plate 31, the position and verticality of the shaft 1 need to be adjusted to ensure that the bottom end of the inner wall surface 12 of the shaft 1 can completely cover the through hole opened on the mounting base plate 31. After the position is adjusted, the inner wall surface 12 of the shaft 1 is welded and fixed to the mounting base plate 31.

[0055] Install a wellhead device 4 at the top of the storage well foundation pit, and install and connect the well casing 1 and the wellhead device 4; specifically, install and connect the upper casing 15 of the well casing 1 to the wellhead 41, and pour the wellhead 41 into concrete to fix it to form the pouring layer 5 at the top of the storage well foundation pit; after the wellhead 41 is installed, put the shielding plug 42 and the top cover 43 into the wellhead 41 respectively.

[0056] This completes the installation of one storage well.

[0057] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of the present invention, and the present invention is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A storage well for storing containers of high temperature products, characterized in that: Includes shaft (1), The well shaft (1) includes a support member (11), which protrudes from the inner wall surface (12) of the well shaft (1) to support the product container (2) and separate the product container (2) from the inner wall surface (12) of the well shaft (1), so that the support member (11), the inner wall surface (12) and the outer wall of the product container (2) together form a ventilation channel (13) for ventilation to exchange heat with the product container (2); The support member (11) includes a support plate (111) and a ring plate (112). Multiple support plates (111) are provided, and each support plate (111) is evenly distributed on the same circumference around the axis of the wellbore (1). The ring plate (112) has a ring structure and is connected to each support plate (111) on the side near the inner wall (12) and / or on the side near the product container (2) to connect each support plate (111) into a whole; The support plate (111) has a strip-shaped structure. The support plate (111) is arranged along the axial direction of the well shaft (1). The plane of the plate of the support plate (111) is arranged along the radial direction of the well shaft (1). One side of the plate is connected to the inner wall surface (12), and the other side supports the product container (2). The storage well also includes a wellhead device (4), which is installed at the top of the storage well pit. The upper part of the wellbore (1) is provided with a casing (15), which is a pipe section that can extend and retract in the vertical direction, and the top end of the casing (15) is connected to the wellhead device (4). The wellhead device (4) includes a wellhead (41), a shielding plug (42), and a top cover (43). The wellhead (41) is located in the cast-in-place layer (5) at the top of the storage well foundation pit, with the bottom opening connecting to the top of the casing (15). The inner hole of the wellhead (41) is a stepped hole with a diameter that gradually decreases from top to bottom, and the step surface of the stepped hole is an inclined surface that gradually slopes downward from the outside to the inside. The shielding plug (42) is connected to the inner hole of the wellhead (41), and its structure is a stepped shaft shape adapted to the inner hole. The top cover (43) is connected to the top opening of the wellhead (41).

2. A storage well for storing high temperature product containers as defined in claim 1, characterized in that: The end of the support plate (111) facing the top of the well barrel (1) is a guide arc surface (113), and the guide arc surface (113) is an inclined arc surface that gradually slopes downward from the side near the inner wall surface (12) to the side near the product container (2), thereby guiding the product container (2) into the well barrel (1).

3. A storage well for storing high temperature product containers as defined in claim 1, wherein: The well shaft (1) also includes a base plate (14), which is connected to the bottom end of the support member (11) near the product container (2) for supporting the product container (2). The top surface of the substrate (14) has a conical structure, which is adapted to the bottom surface of the product container (2) and serves as the positioning surface of the product container (2).

4. A storage well for storing high temperature product containers according to any one of claims 1 to 3, characterized in that: It also includes a base plate device (3), which is installed at the bottom of the storage well pit, and the bottom end of the well shaft (1) is connected to the base plate device (3). The base plate device (3) is provided with ventilation holes, and the upper part of the well shaft (1) is provided with an air outlet. Both the ventilation holes and the air outlet are connected to the ventilation channel (13). The air outlet is also connected to the pre-set air duct of the storage well pit so that the air can enter the ventilation channel (13) from the ventilation holes, exchange heat with the product container (2), and then be discharged to the pre-set air duct of the storage well pit through the air outlet.

5. A storage well for storing high temperature product containers as defined in claim 4, wherein: The base plate device (3) includes a mounting base plate (31) and a pre-embedded component (32), both of which have openings for ventilation. The pre-embedded component (32) is pre-embedded in the casting layer (5) at the bottom of the storage well foundation pit. The mounting base plate (31) is anchored to the pre-embedded component (32) and supports the bottom end of the connecting well cylinder (1). It is used to adjust the angle of the well cylinder (1) during installation and to bear the load of the well cylinder (1) and the product container (2).

6. A method of constructing a storage well for storing containers of high temperature products, characterized in that The construction of a storage well for storing containers of high-temperature products as described in any one of claims 1 to 5 includes the following steps: Excavate the foundation pit for the storage well; Install a bottom plate device (3) at the bottom of the storage well foundation pit; Prefabricate the well shaft (1), hoist the well shaft (1) onto the base plate device (3) and install and connect it; Install a wellhead device (4) at the top of the storage well pit, and install a connection between the well barrel (1) and the wellhead device (4).