Sealed drainage device and sealed storage system having the same

Abstract

The application relates to a sealed drainage device and a sealed storage system with the same, which comprises a sealed pipe, a buffer pipe, a drainage pipe, a body, a sealed cover plate, a drainage hole and an inner member. After the sealed pipe and the sealed cover plate abut, the buffer pipe connected with the sealed pipe is deformed to make the sealed cover plate and the sealed pipe abut closely, and the sealed pipe and the drainage hole on the sealed cover plate are communicated, meanwhile, the connection part of the drainage pipe and the buffer pipe is arranged in the through hole of the inner member of the container body of the storage container, so that the drainage pipe is located on the side of the inner member far from the sealed cover plate, and the gas or liquid in the storage container of the radioactive article is discharged through the drainage port opened at the end of the buffer pipe far from the drainage pipe, the above technical scheme meets the requirements of the descending height and the high levelness of the sealed cover plate, avoids the fatigue and damage of the supporting plate under long-term force, and solves the problem of the sealing leakage caused by the decline of the connection sealing performance of the upper section and the lower section.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radioactive sealing, in particular to a sealing drainage device and a sealed storage system with the same. BACKGROUND

[0002] The sealing cover and drainage method of the radioactive article transportation and storage container, the commonly used technology (such as Figure 1 ) is to divide the drainage pipe into an upper section 8 and a lower section 9, and the two sections of the drainage pipe are connected in the middle. The upper section 8 is located on the sealing cover plate 3 and is a drainage hole penetrating through the sealing cover plate 3, and a quick connector is arranged at the top to be connected with an external drainage system. A sealing ring 10 is arranged at the position of the drainage hole in the bottom surface of the sealing cover plate 3. The lower section 9 is a long pipe fixed in the container and reaching the bottom of the container, and is fixed on the container wall through a support seat 7. The sealing cover plate 3 presses the sealing ring 10 by its own gravity, so that the upper section 8 and the lower section 9 are connected together to form a drainage channel.

[0003] However, the above-mentioned technology has high requirements for the descending height and levelness of the sealing cover plate 3 after contacting with the sealing ring 10, and also has high requirements for the installation height and levelness of the lower section 9 of the drainage pipe, which leads to high requirements for the manufacturing and installation of the equipment. Meanwhile, under the long-term action, the support seat 7 is prone to fatigue and damage, which leads to the decline of the sealing performance of the connection between the upper section 8 and the lower section 9, and the sealing leakage is easy to occur. SUMMARY

[0004] Therefore, it is necessary to provide a sealing drainage device and a sealed storage system with the same, which can solve the problems of the prior art that the sealing cover plate has high requirements for the descending height and levelness after contacting with the sealing ring, and the lower section of the drainage pipe has high requirements for the installation height and levelness, which leads to high requirements for the manufacturing and installation of the equipment, and under the long-term action, the support plate is prone to fatigue and damage, which leads to the decline of the sealing performance of the connection between the upper section and the lower section, and the sealing leakage is easy to occur.

[0005] An embodiment of the present application provides a sealing drainage device, which is used for being arranged in a storage container of radioactive articles, and comprises a sealing pipe, a buffer pipe and a drainage pipe.

[0006] One end of the sealing pipe is abutted with a sealing cover plate of the storage container and communicates with a drainage hole on the sealing cover plate, and the other end of the sealing pipe communicates with one end of the buffer pipe.

[0007] The end of the buffer pipe away from the sealing pipe is connected with one end of the drainage pipe, and the connection part of the drainage pipe and the buffer pipe is arranged in a through hole of an inner member of a container body of the storage container.

[0008] The drain pipe is located on the side of the inner member away from the sealing cover plate, and a drain opening is formed on the end of the drain pipe away from the buffer pipe.

[0009] The sealing pipe is in abutment with the sealing cover plate of the storage container of radioactive articles at one end, and is in communication with the drain hole on the sealing cover plate. The other end of the sealing pipe is in communication with one end of the buffer pipe. The end of the buffer pipe away from the sealing pipe is connected with one end of the drain pipe. The connection part of the drain pipe and the buffer pipe is arranged in the through hole of the inner member of the container body of the storage container of radioactive articles. The drain pipe is located on the side of the inner member away from the sealing cover plate, and a drain opening is formed on the end of the drain pipe away from the buffer pipe. Thus, after the sealing pipe is in abutment with the sealing cover plate, the buffer pipe connected with the sealing pipe is deformed to make the sealing cover plate tightly abut against the sealing pipe, and the sealing pipe is in communication with the drain hole on the sealing cover plate. At the same time, the connection part of the drain pipe and the buffer pipe is arranged in the through hole of the inner member of the container body of the storage container, so that the drain pipe is located on the side of the inner member away from the sealing cover plate, and the gas or liquid in the storage container of radioactive articles is discharged through the drain opening formed on the end of the drain pipe away from the buffer pipe. Thus, the above technical solution meets the requirements of the sealing cover plate in terms of the descending height and the high levelness, and avoids the fatigue and damage of the support plate under long-term force, so as to prevent the sealing leakage caused by the decline of the connection sealing performance between the upper segment and the lower segment.

[0010] In one of the embodiments, the sealing and draining device further comprises a buffer upper flange and a sealing member. The buffer upper flange is connected with the end of the buffer pipe close to the sealing cover plate. The sealing pipe is provided with a plurality of sealing through holes in the direction in which the drain pipe extends. The sealing member is arranged in the sealing through holes to connect the sealing pipe and the buffer upper flange.

[0011] In one of the embodiments, the sealing and draining device further comprises a fixing seat, which comprises a connecting ring pipe and a clamping ear.

[0012] The connecting ring pipe is provided with an outer ring pipe thread and an inner ring pipe thread. The end of the drain pipe close to the sealing pipe is provided with a drain pipe outer thread. The outer ring pipe thread is matched with the inner thread of the inner wall of the through hole of the inner member. The inner ring pipe thread is matched with the drain pipe outer thread.

[0013] The clamping ear is connected with the end of the connecting ring pipe close to the sealing pipe. The end of the buffer pipe away from the sealing pipe is connected through the clamping ear and the connecting ring pipe. The clamping ear and the inner member are in abutment with the side of the inner member close to the sealing pipe.

[0014] In one of the embodiments, the buffer pipe comprises a flexible pipe and an elastic member, the elastic member is sleeved outside the flexible pipe, the elastic member is located between the clamping ear and the inner member, one end of the flexible pipe is connected with the sealing pipe, and the other end is connected with the drain pipe.

[0015] In one of the embodiments, the buffer pipe is an expansion joint, the expansion joint is provided with at least one wave crest, one end of the expansion joint is connected with the sealing pipe, and the other end is connected with the drain pipe.

[0016] In one of the embodiments, the sealing pipe is connected with a sealing suction disc at the end close to the sealing cover plate, the suction lip of the sealing suction disc abuts against the sealing cover plate, a suction disc through hole is formed at the end of the sealing suction disc away from the sealing cover plate, and the suction disc through hole is communicated with the sealing pipe and the end of the expansion joint close to the sealing pipe.

[0017] In one of the embodiments, the sealing suction disc is provided with a plurality of sealing folds to increase the deformation amount of the sealing suction disc along the extension direction of the drain pipe.

[0018] In one of the embodiments, the sealing pipe is connected with a sealing gasket at the end close to the sealing cover plate, the sealing gasket is provided with a sealing gasket through hole, one end of the sealing gasket abuts against the sealing cover plate, and the other end is communicated with the end of the expansion joint close to the sealing cover plate.

[0019] In one of the embodiments, the sealing drainage device further comprises a sealing ring, the sealing pipe is provided with an annular sealing groove at the end close to the sealing cover plate, and the sealing ring is located in the annular sealing groove and abuts against the sealing cover plate.

[0020] In one of the embodiments, the end of the drain pipe away from the sealing pipe is spaced apart from the bottom wall of the body of the radioactive article storage container; or

[0021] The inner wall of the end of the drain pipe away from the sealing cover plate is provided with a side hole.

[0022] An embodiment of the present application further provides a sealed storage system, which comprises a body, a sealing cover plate, a drain hole, an inner member and the sealing drainage device, the body is provided with an opening, the sealing cover plate is arranged on the opening of the body and seals the opening of the body, the sealing cover plate is provided with the drain hole, the inner member is located in the body and divides the inner part of the body into two parts, and the inner member is provided with a through hole which is opposite to the drain hole.

[0023] The one end of the sealing pipe abuts against the sealing cover plate of the storage container of radioactive articles and communicates with the drain hole on the sealing cover plate, and the other end of the sealing pipe communicates with the one end of the buffer pipe. The end of the buffer pipe away from the sealing pipe is connected with the one end of the drain pipe, and the connection part of the drain pipe and the buffer pipe is arranged in the through hole of the inner member of the container body of the storage container of radioactive articles. The drain pipe is located on the side of the inner member away from the sealing cover plate, and the end of the drain pipe away from the buffer pipe is provided with a drain port. Thus, after the sealing pipe abuts against the sealing cover plate, the sealing cover plate is tightly abutted against the sealing pipe through the deformation of the buffer pipe connected with the sealing pipe, and the sealing pipe communicates with the drain hole on the sealing cover plate, and the connection part of the drain pipe and the buffer pipe is arranged in the through hole of the inner member of the container body of the storage container, so that the drain pipe is located on the side of the inner member away from the sealing cover plate, and the gas or liquid in the storage container of radioactive articles is discharged through the drain port provided on the end of the drain pipe away from the buffer pipe, so that the above technical scheme meets the requirements of the descending height and the high levelness of the sealing cover plate, and avoids the fatigue and damage of the supporting plate under the long-term force, so as to cause the sealing leakage problem caused by the decline of the connection sealing performance of the upper segment and the lower segment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 FIG. 1 is a structural schematic view of the sealing cover and the drain device of the radioactive article transportation and storage container in the prior art.

[0025] Figure 2 FIG. 2 is a structural schematic view of the sealing storage system of one embodiment.

[0026] Figure 3 FIG. 3 is a front view of the structure of the sealing drain device of one embodiment.

[0027] Figure 4 FIG. 4 is a structural schematic view of the sealing drain device of one embodiment.

[0028] Figure 5 FIG. 5 is a front view of the structure of the sealing drain device of one embodiment.

[0029] Figure 6 FIG. 6 is a front view of the structure of the sealing drain device of one embodiment.

[0030] Figure 7 FIG. 7 is a structural schematic view of the sealing drain device of one embodiment.

[0031] REFERENCE NUMERALS:

[0032] 1 - container barrel wall; 2 - inner member; 3 - sealing cover plate; 4 - container interior; 5 - inflation device; 7 - support seat; 8 - upper segment; 9 - lower segment; 10 - sealing ring;

[0033] 100 - sealing drain device;

[0034] 110-sealing tube; 111-sealing through hole; 112-sealing suction cup; 113-suction lip; 1121-suction cup through hole; 114-sealing fold; 115-sealing gasket; 1151-sealing gasket through hole; 116-sealing groove; 117-sealing ring;

[0035] 120-buffer tube; 121-buffer upper flange; 122-flexible tube; 123-elastic member; 124-expansion joint; 1241-wave crest;

[0036] 130-drainage tube; 131-drainage port; 132-side hole;

[0037] 140-fixing seat; 141-connecting ring tube; 142-clamping ear;

[0038] 210-storage container of radioactive articles; 211-sealing cover plate; 212-drainage hole; 213-inner member; 214-through hole; 215-aeration device; 216-body of the storage container;

[0039] 220-sealing storage system. DETAILED DESCRIPTION

[0040] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described and it is therefore contemplated that there are other embodiments of the present application that fall within the scope of the present application.

[0041] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0042] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one feature. In the description of the present application, if there are terms "a plurality of", the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0043] In the present application, unless otherwise expressly specified and limited, if there are terms "installation", "connection", "connection", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise expressly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In the present application, unless otherwise expressly specified and limited, if there are similar descriptions such as "first feature on" or "second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" of the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0045] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If there is, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of illustration, and do not represent the only implementation.

[0046] Referring to Figure 2 and Figure 3 , Figure 2 The structure diagram of the radioactive material storage container 210 in the embodiment of the present application is shown. The sealing drainage device 100 provided by the embodiment of the present application is used to be arranged in the radioactive material storage container 210, and the sealing drainage device 100 comprises a sealing pipe 110, a buffer pipe 120 and a drainage pipe 130.

[0047] Referring to Figure 2 The radioactive material storage container 210 includes a body 216, a sealing cover plate 211, a drain hole 212, and an inner member 213. The body 216 has an opening, the sealing cover plate 211 is arranged on the opening of the body and seals the opening of the body 216, the sealing cover plate 211 is provided with the drain hole 212, and the inner member 213 is located in the body 216 and divides the inside of the body 216 into two parts, and the inner member 213 is provided with a through hole 214 corresponding to the drain hole 212.

[0048] One end of the sealing pipe 110 abuts against the sealing cover plate 211 of the radioactive material storage container 210 and communicates with the drain hole 212 on the sealing cover plate 211, and the other end of the sealing pipe 110 communicates with one end of the buffer pipe 120. The end of the buffer pipe 120 away from the sealing pipe 110 is connected to one end of the drain pipe 130, and the connection part of the drain pipe 130 and the buffer pipe 120 penetrates the through hole 214 of the inner member 213 of the container body of the radioactive material storage container 210. The drain pipe 130 is located on the side of the inner member 213 away from the sealing cover plate 211, and the end of the drain pipe 130 away from the buffer pipe 120 is provided with a drain port 131. Thus, after the sealing pipe 110 abuts against the sealing cover plate 211, the sealing cover plate 211 is tightly abutted against the sealing pipe 110 by the deformation of the buffer pipe 120 connected to the sealing pipe 110, and the sealing pipe 110 communicates with the drain hole 212 on the sealing cover plate 211, and at the same time, the connection part of the drain pipe 130 and the buffer pipe 120 penetrates the through hole 214 of the inner member 213 of the container body of the radioactive material storage container 210, so that the drain pipe 130 is located on the side of the inner member 213 away from the sealing cover plate 211, and the gas or liquid in the radioactive material storage container 210 is discharged through the drain port 131 provided at the end of the drain pipe 130 away from the buffer pipe 120, thereby meeting the requirements of the descending height and the high levelness of the sealing cover plate 211 through the above technical scheme, and avoiding the fatigue and damage of the supporting plate under long-term force, thereby avoiding the sealing leakage problem caused by the decline of the connection sealing performance of the upper segment and the lower segment.

[0049] Referring to Figure 2 and Figure 3In one of the embodiments, the sealing drainage device 100 further comprises a buffer upper flange 121 and a sealing member (not shown in the figure). The buffer upper flange 121 is connected to the buffer pipe 120 at the end close to the sealing cover plate 211, the sealing pipe 110 is provided with a plurality of sealing through holes 111 along the extending direction of the drainage pipe 130, and the sealing member is arranged in the sealing through holes 111 to connect the sealing pipe 110 and the buffer upper flange 121, so that the sealing pipe 110 is connected to the buffer upper flange 121 on the buffer pipe 120 through the sealing member, thereby achieving the effect of sealing the connection between the buffer pipe 120 and the sealing pipe 110 by using the flange connection mode.

[0050] Referring to Figure 2 and Figure 3 In one of the embodiments, the sealing drainage device 100 further comprises a fixing seat 140, which comprises a connecting ring pipe 141 and a clamping ear 142. The connecting ring pipe 141 is provided with an outer ring pipe thread (not shown in the figure) and an inner ring pipe thread (not shown in the figure), the drainage pipe 130 is provided with a drainage pipe 130 outer thread (not shown in the figure) at the end close to the sealing pipe 110, the outer ring pipe thread cooperates with the inner thread (not shown in the figure) on the inner wall of the through hole 214 of the inner member 213, and the inner ring pipe thread cooperates with the drainage pipe 130 outer thread, so that the sealing drainage device 100 is fixed to the through hole 214 of the inner member 213 by cooperating the outer ring pipe thread of the fixing seat 140 with the inner thread on the inner wall of the through hole 214 of the inner member 213, and cooperating the inner ring pipe thread with the drainage pipe 130 outer thread, which replaces the connection of the sealing drainage device 100 to the support plate, avoids the fatigue and damage of the support plate under long-term force, and prevents the sealing leakage caused by the decline of the connection sealing performance between the upper segment and the lower segment. The clamping ear 142 is connected to the connecting ring pipe 141 at the end close to the sealing pipe 110, the buffer pipe 120 is connected to the connecting ring pipe 141 through the clamping ear 142 at the end away from the sealing pipe 110, and the clamping ear 142 abuts against the side of the inner member 213 close to the sealing pipe 110, so that the clamping ear 142 can be clamped by a fastening device such as a wrench, so as to tightly cooperate the outer ring pipe thread with the inner thread on the inner wall of the through hole 214 of the inner member 213, thereby fastening the sealing drainage device 100 to the through hole 214 of the inner member 213, and abutting the clamping ear 142 against the side of the inner member 213 close to the sealing pipe 110 to seal the opening of the through hole 214 of the inner member 213 close to the sealing pipe 110.

[0051] Referring to Figure 2 and Figure 5In one of the embodiments, the buffer tube 120 comprises a flexible tube 122 and an elastic member 123, the elastic member 123 is sleeved outside the flexible tube 122, the elastic member 123 is located between the clamping ear 142 and the inner member 213, one end of the flexible tube 122 is connected with the sealing tube 110, and the other end is connected with the drain pipe 130, so that the sealing tube 110 is centered with the drain hole 212 by adjusting the flexible tube 122, the sealing tube 110 is aligned and communicated with the drain hole 212, and the elastic member 123 is located between the clamping ear 142 and the inner member 213, so that the elastic member 123 can be elastically deformed when the sealing cover plate 211 abuts against the sealing tube 110, and the sealing cover plate 211 is tightly abutted against the sealing tube 110.

[0052] Specifically, the elastic member can be a spring or other elastic member, which is not described here.

[0053] Referring to Figure 2 and Figure 4 In one of the embodiments, the buffer tube 120 is an expansion joint 124, the expansion joint 124 is provided with at least one wave crest 1241, one end of the expansion joint 124 is connected with the sealing tube 110, and the other end is connected with the drain pipe 130, so that the sealing tube 110 is centered with the drain hole 212 by adjusting the expansion joint 124, the sealing tube 110 is aligned and communicated with the drain hole 212, and the expansion joint 124 is provided with at least one wave crest 1241, one end of the expansion joint 124 is connected with the sealing tube 110, and the other end is connected with the drain pipe 130, so that the expansion joint 124 can be elastically deformed, and the sealing cover plate 211 is tightly abutted against the sealing tube 110.

[0054] Specifically, the cross section of the wave crest 1241 can be one of semicircle, triangle or part of circle (such as Ω shape), and can also be other shapes, as long as the expansion joint 124 can be deformed by the deformation of at least one wave crest 1241, which is not described here.

[0055] Specifically, one end of the expansion joint 124 is connected with the sealing tube 110, and the other end is connected with the connecting ring tube 141 through the clamping ear 142, the inner thread of the ring tube is matched with the outer thread of the drain pipe 130 to connect the connecting ring tube 141 and the drain pipe 130.

[0056] Referring to Figure 2 and Figure 4In one embodiment, the sealing pipe 110 is connected with a sealing suction disc 112 near one end of the sealing cover plate 211, the suction lip 113 of the sealing suction disc 112 is in abutment with the sealing cover plate 211, and a suction disc through hole 1121 is formed in the end of the sealing suction disc 112 away from the sealing cover plate 211, the suction disc through hole 1121 is communicated with the end of the sealing pipe 110 near the expansion joint 124, so that the sealing suction disc 112 can be centered with the drain hole 212 by adjusting the expansion joint 124, then the sealing cover plate 211 is in abutment with the suction lip 113 of the sealing suction disc 112 to seal the drain hole 212, and then the liquid or gas in the radioactive material storage container 210 is discharged through the drain hole 212 after passing through the drain pipe 130, the fixed seat 140, the buffer pipe 120, the suction disc through hole 1121, and finally the sealing suction disc 112.

[0057] Referring to Figure 2 and Figure 3 In one embodiment, the sealing suction disc 112 is provided with a plurality of sealing folds 114 to increase the deformation amount of the sealing suction disc 112 along the extension direction of the drain pipe 130, so that the sealing suction disc 112 can also be deformed to a certain extent to meet the requirements of the higher drop height and levelness of the sealing cover plate 211, so that the sealing suction disc 112 can better seal the drain hole 212.

[0058] Referring to Figure 2 and Figure 6 In another embodiment, the sealing pipe 110 is connected with a sealing gasket 115 near one end of the sealing cover plate 211, the sealing gasket 115 is provided with a sealing gasket through hole 1151, one end of the sealing gasket 115 is in abutment with the sealing cover plate 211, and the other end is communicated with the end of the expansion joint 124 near the sealing cover plate 211, so that the sealing gasket 115 is deformed to a certain extent to meet the requirements of the higher drop height and levelness of the sealing cover plate 211, so that the sealing gasket 115 can better seal the drain hole 212.

[0059] Referring to Figure 2 and Figure 7 In yet another embodiment, the sealing drain device 100 further comprises a sealing ring 117, and the sealing pipe 110 is provided with an annular sealing groove 116 near one end of the sealing cover plate 211, the sealing ring 117 is located in the annular sealing groove 116 and is in abutment with the sealing cover plate 211, so that the sealing cover plate 211 is in abutment with the sealing ring 117 in the sealing groove 116 to seal the drain hole 212, and at the same time, the sealing groove 116 fixes the sealing ring 117 to prevent the sealing ring 117 from deviating to cause a leak when the sealing cover plate 211 contacts the sealing ring 117.

[0060] Referring to Figure 2 and Figure 3 In one embodiment, the drain pipe 130 is spaced apart from the end of the sealing pipe 110 and the bottom wall of the radioactive article storage container 210, so that the liquid or gas in the radioactive article storage container 210 can pass through the gap between the end of the sealing pipe 110 and the bottom wall of the body of the radioactive article storage container 210, enter the drain port 131, then pass through the drain pipe 130, the fixing seat 140, the buffer pipe 120, the suction disc through hole 1121, and finally pass through the sealing suction disc 112 to enter the drain hole 212 to be discharged from the radioactive article storage container.

[0061] Referring to Figure 2 and Figure 4 In another embodiment, the end of the drain pipe 130 away from the sealing cover plate 211 is provided with a side hole 132, so that the liquid or gas in the radioactive article storage container 210 can pass through the side hole 132 of the end of the drain pipe 130 away from the sealing pipe 110 to enter the drain port 131, then pass through the drain pipe 130, the fixing seat 140, the buffer pipe 120, the suction disc through hole 1121, and finally pass through the sealing suction disc 112 to enter the drain hole 212 to be discharged from the radioactive article storage container 210.

[0062] Referring to Figure 2 An embodiment of the present application also provides a sealed storage system 220, which comprises a body 216, a sealing cover plate 211, a drain hole 212, an inner member 213, and the sealed drainage device 100, the body 216 has an opening, the sealing cover plate 211 is arranged on the opening of the body and seals the opening of the body 216, the sealing cover plate 211 is provided with the drain hole 212, the inner member 213 is located in the body 216 and divides the inner part of the body 216 into two parts, and the inner member 213 is provided with a through hole 214 which is opposite to the drain hole 212.

[0063] The sealing storage system 220 described above, one end of the sealing pipe 110 abuts against the sealing cover plate 211 of the radioactive article storage container 210, and communicates with the drain hole 212 on the sealing cover plate 211, and the other end of the sealing pipe 110 communicates with one end of the buffer pipe 120. The end of the buffer pipe 120 away from the sealing pipe 110 is connected with one end of the drain pipe 130, and the connection between the drain pipe 130 and the buffer pipe 120 is provided in the through hole 214 of the inner member 213 of the container body of the radioactive article storage container 210. The drain pipe 130 is located on the side of the inner member 213 away from the sealing cover plate 211, and the end of the drain pipe 130 away from the buffer pipe 120 is provided with a drain port 131. Thus, after the sealing pipe 110 abuts against the sealing cover plate 211, the sealing cover plate 211 is tightly abutted against the sealing pipe 110 by the deformation of the buffer pipe 120 connected with the sealing pipe 110, and the sealing pipe 110 is communicated with the drain hole 212 on the sealing cover plate 211, and the connection between the drain pipe 130 and the buffer pipe 120 is provided in the through hole 214 of the inner member 213 of the container body of the radioactive article storage container 210, so that the drain pipe 130 is located on the side of the inner member 213 away from the sealing cover plate 211, and the gas or liquid in the radioactive article storage container 210 is discharged through the drain port 131 provided at the end of the drain pipe 130 away from the buffer pipe 120, so that the above technical solution meets the requirements of the descending height and the high levelness of the sealing cover plate 211, and avoids the fatigue and damage of the supporting plate under long-term force, which causes the sealing leakage problem of the connection between the upper segment and the lower segment.

[0064] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0065] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A sealed drainage device for installation inside a storage container for radioactive materials, characterized in that, The sealing and drainage device includes: a sealing pipe, a buffer pipe, a buffer upper flange, a sealing element, and a drain pipe; One end of the sealing tube abuts against the sealing cover of the storage container and communicates with the drain hole on the sealing cover; the other end of the sealing tube communicates with one end of the buffer tube. The end of the buffer tube away from the sealing tube is connected to one end of the drain tube, and the connection between the drain tube and the buffer tube passes through the through hole of the internal component of the container body of the storage container. The drain pipe is located on the side of the internal component away from the sealing cover plate, and a drain outlet is provided at the end of the drain pipe away from the buffer pipe; The upper flange of the buffer is connected to one end of the buffer pipe near the sealing pipe. The sealing pipe has multiple sealing through holes along the direction of the drain pipe. The sealing element passes through the sealing through holes to connect the sealing pipe and the upper flange of the buffer.

2. The sealing drainage device according to claim 1, characterized in that, The sealing drainage device also includes a fixing seat, which includes a connecting ring pipe and a clamp; The connecting ring tube has an external thread and an internal thread, and the drain pipe has an external thread at one end near the sealing pipe. The external thread of the ring tube engages with the internal thread of the inner wall of the through hole of the inner component, and the internal thread of the ring tube engages with the external thread of the drain pipe. The clasp is connected to the end of the connecting ring tube near the sealing tube, and the end of the buffer tube away from the sealing tube is connected through the clasp and the connecting ring tube. The clasp and the inner component abut against the side near the sealing tube.

3. The sealed drainage device according to claim 2, characterized in that, The buffer tube includes a flexible tube and an elastic element. The elastic element is sleeved on the outside of the flexible tube and is located between the clip and the inner component. One end of the flexible tube is connected to the sealing tube, and the other end is connected to the drain tube.

4. The sealed drainage device according to claim 1 or 2, characterized in that, The buffer pipe is an expansion joint, which has at least one corrugation. One end of the expansion joint is connected to the sealing pipe, and the other end is connected to the drain pipe.

5. The sealed drainage device according to claim 4, characterized in that, A sealing suction cup is connected to one end of the sealing tube near the sealing cover plate. The suction lip of the sealing suction cup abuts against the sealing cover plate. A suction cup through hole is opened at one end of the sealing suction cup away from the sealing cover plate. The suction cup through hole is connected to the sealing tube and the end of the expansion joint near the sealing tube.

6. The sealed drainage device according to claim 5, characterized in that, The sealing suction cup is provided with multiple sealing folds to increase the deformation of the sealing suction cup along the extension direction of the drain pipe.

7. The sealed drainage device according to claim 4, characterized in that, A sealing gasket is connected to one end of the sealing tube near the sealing cover plate. The sealing gasket has a through hole. One end of the sealing gasket abuts against the sealing cover plate, and the other end communicates with the end of the expansion joint near the sealing cover plate.

8. The sealing drainage device according to claim 4, characterized in that, The sealing drainage device also includes a sealing ring. An annular sealing groove is provided at one end of the sealing pipe near the sealing cover plate. The sealing ring is located in the annular sealing groove and abuts against the sealing cover plate.

9. The sealed drainage device according to claim 1, characterized in that, The drain pipe is spaced apart from the end of the sealing pipe and from the bottom wall of the body of the radioactive material storage container; or A side hole is provided on the inner wall of the end of the drain pipe away from the sealing cover.

10. A sealed storage system, characterized in that, The device includes a body, a sealing cover, a drain hole, an internal component, and a sealing and draining device as described in any one of claims 1-9. The body has an opening, the sealing cover is disposed over the opening of the body and seals the opening of the body, the drain hole is provided on the sealing cover, the internal component is located inside the body and divides the interior of the body into two parts, and the internal component has a through hole aligned with the drain hole.

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