CN115171940A - Double-cover transfer device and sealing system - Google Patents

Abstract

The invention discloses a double-cover transfer device and a sealing system comprising the same, wherein the double-cover transfer device comprises a first sealing mechanism, a second sealing mechanism and a door opening mechanism, the first sealing mechanism comprises a first cover plate, a first rotating assembly and a first sealing ring, the first cover plate is arranged in an opening of a first sealing box chamber, the second sealing mechanism comprises a second cover plate, a second sealing ring, a second rotating assembly and a flange, the flange is fixedly arranged in the opening of the second sealing box chamber, the second cover plate is arranged in an inner hole of the flange, the door opening mechanism is arranged in the first sealing box chamber, and when the first cover plate is meshed with the second cover plate, the door opening mechanism lifts the meshed first cover plate and the second cover plate into the first sealing box chamber. This double-cover transfer device can provide the passageway for the equipment transportation in the sealed box room of high sealing grade, satisfies the sealed requirement of the sealed box room of high sealing grade.

Description

Double-cover transfer device and sealing system

Technical Field

The invention relates to a double-cover transfer device and a sealing system comprising the same.

Background

Sealed chambers (hot chambers, glove boxes) are widely used in the nuclear industry as a sealed containment device. When the process equipment in the sealed box chamber is maintained and breaks down in daily equipment, if corresponding work cannot be finished in the box chamber, the process equipment needs to be transferred to a special overhaul box chamber. Due to the high radioactivity and high alpha pollution in the sealed box chamber (especially the hot chamber), in order to provide necessary protection for personnel during the maintenance and transportation process, ensure alpha sealing and prevent pollution diffusion, a double-cover transportation technology is often adopted.

The domestic existing double-cover transfer device is mostly applied to a box chamber with low sealing grade and small cross section size of a transfer piece (a large-size transfer piece is mostly transferred in a traditional bag sealing mode), and the overhaul and transfer requirements (particularly the transfer requirements of the large-size transfer piece) of the box chamber with higher sealing requirements cannot be met.

Therefore, a need exists for a dual lid transfer device for use in a sealed enclosure having a high seal rating.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a double-cover transfer device and a sealing system comprising the double-cover transfer device, aiming at the defects in the prior art, wherein the double-cover transfer device can provide a channel for transferring equipment in a sealed box chamber with high sealing grade, and meet the sealing requirement of the sealed box chamber with high sealing grade.

In order to solve the problems, the invention adopts the following technical scheme:

a double-cover transfer device comprises a first sealing mechanism, a second sealing mechanism and a door opening mechanism, wherein the first sealing mechanism comprises a first cover plate, a swing arm, a first rotating assembly and a first sealing ring, the first cover plate is arranged in an opening of a first sealed box chamber, the longitudinal section of the opening of the first sealed box chamber is in an inverted cone shape, the longitudinal section of the first cover plate is in an inverted cone shape matched with the opening shape of the first sealed box chamber, the first sealing ring is used for sealing between the first cover plate and the first sealed box chamber and is positioned at the outer side of the first cover plate, the first rotating assembly is arranged at the center of the first cover plate in a penetrating manner, the first rotating assembly is provided with a first tooth, one end of the swing arm is connected with the first rotating assembly, the second sealing mechanism comprises a second cover plate, a second sealing ring, a second rotating assembly, a telescopic assembly and a flange, the flange is fixedly arranged in an opening of the second sealed box chamber, the second cover plate is arranged in an inner hole of the flange, the longitudinal section of the inner hole of the flange is in an inverted cone shape, the longitudinal section of the second cover plate is in an inverted cone shape matched with the inner hole shape of the flange, a contact surface between the first cover plate and the first sealed box chamber is a first contact surface, a contact surface between the second cover plate and the flange is a second contact surface, the second contact surface is the same plane along which the first contact surface extends downwards, the second seal ring is used for sealing between the second cover plate and the flange, the second seal ring is positioned at the outer side of the second cover plate, the second rotating assembly penetrates through the center of the second cover plate and is provided with second teeth, the second teeth can be meshed with the first teeth, the telescopic assembly is arranged at the bottom of the second cover plate and is connected to the second rotating assembly, the telescopic end of the telescopic assembly is located under the flange, the door opening mechanism is arranged inside the first seal box chamber, when the first tooth is meshed with the second tooth, the swing arm moves through driving, so that the first rotating assembly and the second rotating assembly are driven to rotate, the telescopic end of the telescopic assembly is contracted from the lower side of the flange to the lower side of the second cover plate, and the door opening mechanism is used for lifting the meshed first cover plate and the meshed second cover plate into the first seal box chamber.

Preferably, flexible subassembly includes carousel, connecting rod, pin rod, bearing frame and first gyro wheel, the carousel set firmly in the bottom of second rotating assembly, the bearing frame is installed the bottom of second apron, the one end of connecting rod with the carousel is connected, the other end with the one end of pin rod is connected, the other end of pin rod passes the bearing frame, and first gyro wheel is located the pin rod is kept away from the one end of connecting rod, and the gyro wheel is in under the flange.

Preferably, the bottom of flange is the slope, just the flange is kept away from the one end of second apron is higher than the flange is close to the one end of second apron, two lid transfer devices still include actuating mechanism, actuating mechanism locates in the first seal box room, its output with the swing arm is connected.

Preferably, the first sealing mechanism further comprises a limiting plate, the limiting plate is arranged on the first cover plate, an annular groove is formed in the limiting plate, a second roller is further arranged at the bottom of the swing arm, and when the driving mechanism drives the swing arm to swing, the second roller rolls in the groove.

Preferably, the first sealing mechanism further comprises a limiting assembly, the limiting assembly comprises a spring and a steel ball, the spring is arranged at the bottom of the swing arm, the steel ball is mounted at the free end of the spring, a limiting hole is further formed in the first cover plate, the position of the limiting hole corresponds to the position of the steel ball, the limiting hole is annular, the size of the limiting hole is matched with the size of the steel ball, when the driving mechanism drives the swing arm to swing, the steel ball rolls from one end of the limiting hole to the other end in the limiting hole, and the swing arm moves from an initial position to a target position.

Preferably, the first rotating assembly includes a first transmission shaft, a first bearing, a third seal ring, and a first end cover, the first bearing is mounted at a central position of the first cover plate, the first transmission shaft is supported on the first bearing and penetrates through a center of the first cover plate, the first transmission shaft is connected with the swing arm through a first flat key, the first end cover is sleeved on the first transmission shaft and fixed on the first cover plate, and the third seal ring is disposed between the first end cover and the first cover plate; the first teeth are arranged at the bottom end of the first transmission shaft.

Preferably, the second rotating assembly includes a second transmission shaft, a second bearing, a fourth seal ring and a second end cover, the second bearing is mounted at the center of a second cover plate, the second transmission shaft is supported on the second bearing and penetrates through the center of the second cover plate, the telescopic assembly is connected with the second transmission shaft through a second flat key, the second end cover is sleeved on the second transmission shaft and fixed on the second cover plate, and the fourth seal ring is arranged between the second end cover and the second cover plate; the second tooth is arranged at the top end of the second transmission shaft.

Preferably, the top surface of the second end cover is provided with a positioning pin/pin hole, and the bottom surface of the first end cover is provided with a pin hole/positioning pin with corresponding positions.

Preferably, the first sealing ring is arranged at the bottom of the first cover plate, and the second sealing ring is arranged at the top of the second cover plate, so that the first sealing ring and the second sealing ring can be in contact.

Preferably, the first sealing ring and the second sealing ring are both lip-shaped, and each sealing surface of the first sealing ring and the second sealing ring is provided with a tooth-shaped structure for increasing the sealing area.

The invention also provides a sealing system which comprises a first sealing box chamber, a second sealing box chamber and the double-cover transfer device.

The double-cover transfer device can provide a channel for transferring equipment in the high-grade sealed box chamber, meets the sealing requirement of the high-grade sealed box chamber, ensures alpha sealing performance and prevents pollution diffusion; the double-cover transfer device breaks through the situation that the effective drift diameter reaches phi 640mm, and can realize the overhaul and transfer of large parts and process equipment in a high-sealing-level seal box chamber.

Drawings

FIG. 1 is a schematic view of the structure of a double cap transfer device in example 1 of the present invention;

fig. 2 is a sectional view of a first seal mechanism in embodiment 1 of the invention;

fig. 3 is a plan view of a first seal mechanism in embodiment 1 of the invention;

fig. 4 is a sectional view of a second seal mechanism in embodiment 1 of the invention;

fig. 5 is a plan view of a second seal mechanism in embodiment 1 of the invention;

fig. 6a is a schematic view of the first cover plate and the second cover plate separated in embodiment 1 of the present invention;

fig. 6b is a schematic view of the first cover plate and the second cover plate in butt joint in embodiment 1 of the present invention;

fig. 6c is a schematic view of the engagement of the first cover plate and the second cover plate in embodiment 1 of the present invention;

fig. 6d is a schematic view of the door opening mechanism in embodiment 1 of the present invention transferring the first cover plate and the second cover plate into the first sealed box chamber.

In the figure: 1-a first sealing ring, 2-a first cover plate, 3-a second cover plate, 4-a second sealing ring, 5-a flange, 6-a swing arm, 7-a limiting plate, 8-a second roller, 9-a limiting component, 10-a positioning pin, 14-a second bearing, 15-a pin rod, 16-a connecting rod, 17-a rotary table, 18-a first roller, 19-a second transmission shaft, 20-a second fastening piece, 21-a second end cover, 22-a fourth sealing ring, 23-a second flat key, 24-a first transmission shaft, 25-a third sealing ring, 26-a first bearing, 29-a first fastening piece, 30-a first flat key, 31-a first end cover, 32-a limiting hole, 33-a pin hole, 34-a first sealing box chamber, 35-a second sealing box chamber, and 36-a bearing seat.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "on" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience and simplicity of description, and do not indicate or imply that the indicated device or element must be provided with a specific orientation, configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected," "disposed," "mounted," "fixed," and the like are to be construed broadly, e.g., as being fixedly or removably connected, or integrally connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention provides a double-cover transfer device, which comprises a first sealing mechanism, a second sealing mechanism and a door opening mechanism, wherein the first sealing mechanism comprises a first cover plate, a swing arm, a first rotating component and a first sealing ring, the first cover plate is arranged in an opening of a first sealed box chamber, the longitudinal section of the opening of the first sealed box chamber is in an inverted cone shape, the longitudinal section of the first cover plate is in the inverted cone shape matched with the opening shape of the first sealed box chamber, the first sealing ring is used for sealing between the first cover plate and the first sealed box chamber and is positioned on the outer side of the first cover plate, the first rotating component penetrates through the center of the first cover plate and is provided with first teeth, one end of the swing arm is connected with the first rotating component, the second sealing mechanism comprises a second cover plate, a second sealing ring, a second rotating component, a telescopic component and a flange, the flange is fixedly arranged in an opening of the second sealed box chamber, the second cover plate is arranged in an inner hole of the flange, the longitudinal section of the inner hole of the flange is in an inverted cone shape, the longitudinal section of the second cover plate is in an inverted cone shape matched with the shape of the inner hole of the flange, the contact surface between the first cover plate and the first sealed box chamber is a first contact surface, the contact surface between the second cover plate and the flange is a second contact surface, the second contact surface is the same plane with the first contact surface extending downwards, the second sealing ring is used for sealing between the second cover plate and the flange and is positioned at the outer side of the second cover plate, the second rotating assembly penetrates through the center of the second cover plate and is provided with second teeth, the second teeth can be meshed with the first teeth, and the telescopic assembly is arranged at the bottom of the second cover plate, the door opening mechanism is connected to the second rotating assembly, the telescopic end of the telescopic assembly is located under the flange, the door opening mechanism is arranged inside the first sealed box chamber, when the first tooth is meshed with the second tooth, the swing arm is driven to move, so that the first rotating assembly and the second rotating assembly are driven to rotate, the telescopic end of the telescopic assembly is contracted below the flange, and the second cover plate is arranged below the telescopic end of the telescopic assembly, and the door opening mechanism is used for lifting the meshed first cover plate and the meshed second cover plate into the first sealed box chamber.

The invention also provides a sealing system which comprises a first sealing box chamber, a second sealing box chamber and the double-cover transferring device.

Example 1

As shown in fig. 1, the embodiment discloses a double-cover transfer device, including a first sealing mechanism, a second sealing mechanism, and a door opening mechanism, the first sealing mechanism includes a first cover plate 2, a swing arm 6, a first rotating component, a first seal ring 1, the first cover plate 2 is disposed in an opening of a first seal box chamber 34, a longitudinal section of the opening of the first seal box chamber 34 is an inverted cone, the longitudinal section of the first cover plate 2 is an inverted cone matched with the opening shape of the first seal box chamber 34, the first seal ring 1 is used for sealing between the first cover plate 2 and the first seal box chamber 34, and is located outside the first cover plate 2, the first rotating component is disposed at the center of the first cover plate 2 in a penetrating manner, the first rotating component has a first tooth, and one end of the swing arm 6 is connected with the first rotating component.

The second sealing mechanism includes second apron 3, second sealing washer 4, the second rotating assembly, flexible subassembly, flange 5 sets firmly in the opening of second seal box room 35, second apron 3 is located in the hole of flange 5, and the longitudinal section of the hole of flange 5 is the back taper, the longitudinal section of second apron 3 is the back taper with the hole shape assorted of flange 5, first apron 2 sets up to the back taper with second apron 3, help guaranteeing leakproofness and two covers (first apron 2 and second apron 3) centering. The contact surface between the first cover plate 2 and the first seal box chamber 34 is a first contact surface, the contact surface between the second cover plate 3 and the inner hole of the flange 5 is a second contact surface, and the second contact surface is the same plane with the first contact surface extending downwards, that is, when the first seal mechanism and the second seal mechanism are butt-coupled, the first cover plate and the second cover plate 3 are combined to form an integral inverted cone. In this embodiment, a step is provided at the upper edge of the opening of the first sealed box chamber 34, a lap joint portion is provided at the top of the first cover plate 2, the lap joint portion is lapped on the step at the opening, and the lower portion of the first contact surface and the second contact surface are located in the same plane. The second sealing washer 4 is used for sealing between second apron 3 and flange 5, it is located the outside of second apron 3, the second rotating assembly wears to locate the center of second apron 3, the second rotating assembly has the second tooth, the second tooth can with first tooth meshing, the bottom of second apron 3 is located to flexible subassembly, it is connected on the second rotating assembly, flexible end department of flexible subassembly is under flange 5, inside first sealed housing 34 is located to the stiff end of mechanism of opening the door, the other end of mechanism of opening the door is connected with the inboard of first apron 2. When the first tooth is meshed with the second tooth, the swing arm 6 is driven to move, so that the first rotating assembly and the second rotating assembly are driven to rotate, the telescopic end of the telescopic assembly is contracted to the lower part of the second cover plate 3 from the lower part of the flange 5, and the door opening mechanism is used for lifting the meshed first cover plate 2 and the meshed second cover plate 3 into the first sealed box chamber 34.

As shown in fig. 4, the telescopic assembly includes a rotary plate 17, a connecting rod 16, a pin rod 15, a bearing seat 36 and a first roller 18, the rotary plate 17 is circular and is fixedly disposed at the bottom of the second rotating assembly, the bearing seat 36 is disposed at the bottom of the second cover plate 3 and is located at the outer edge of the second cover plate 3, one end of the connecting rod 16 is connected to the rotary plate 17, the other end of the connecting rod is connected to one end of the pin rod 15, the other end of the pin rod 15 penetrates through the bearing seat 36, the first roller 18 is disposed at one end of the pin rod 15 far away from the connecting rod 16, and the first roller 18 is located right below the flange 5.

Specifically, four bearing seats 36 are arranged on the same circumference at the bottom of the second cover plate 3, and the central angle between two adjacent bearing seats 36 is 90 °, and similarly, four connecting rods 16, four pin rods 15 and four first rollers 18 correspond to each other.

In this embodiment, the bottom of the flange 5 is a slope, and the slope is inclined upward, so that the end of the flange 5 far away from the second cover plate 3 is higher than the end of the flange 5 close to the second cover plate 3. The transfer device further comprises a driving mechanism, the driving mechanism is arranged in the first sealed box chamber 34, an interface of the coupling driving mechanism is arranged on the swing arm 6, and the output end of the driving mechanism is connected with the swing arm 6 through the interface.

Specifically, when actuating mechanism drives swing arm 6 and moves, swing arm 6 drives first rotating assembly and second rotating assembly and rotates towards first direction (before first apron 2 and the separation of second apron 3), the direction linear motion of carousel 17 is kept away from to pin 15 orientation, and then drive first gyro wheel 18 and slide in flange 5 bottom surface, its slip direction is the direction of keeping away from second apron 3, because the bottom that the one end of second apron 3 was kept away from to flange 5 is higher than the bottom that flange 5 is close to the one end of second apron 3, so first gyro wheel 18 can drive the whole second contact surface that compresses tightly downwards of second apron 3 when the motion, and then make and compress tightly second sealing washer 4.

The swing arm 6 drives the first rotating assembly and the second rotating assembly to rotate towards the second direction (after the first cover plate 2 and the second cover plate 3 are coupled), the pin rod 15 moves linearly towards the direction close to the turntable 17, and then drives the first roller 18 to slide on the bottom surface of the flange 5, the sliding direction of the first roller is the direction close to the second cover plate 3, and because the bottom of one end, far away from the second cover plate 3, of the flange 5 is higher than the bottom of one end, close to the second cover plate 3, of the flange 5, the first roller 18 can reduce the pressure of the second cover plate 3 on the second contact surface during movement, and the pressing force of the second sealing ring 4 and the second contact surface until the second roller 8 contracts to the bottom of the second cover plate 3. The subsequent door opening mechanism is then facilitated to lift the first cover plate 2 and the second cover plate 3 simultaneously inside the first sealed compartment 34.

As shown in fig. 1, 2 and 3, the first sealing mechanism further includes a limiting plate 7, the limiting plate 7 is disposed on the inner side of the first cover plate 2 and located on the circumferential outer edge of the first cover plate 2, and the limiting plate 7 is located on the concentric circle of the outer circle of the first cover plate 2. An annular groove is formed in the vertical plane of the limiting plate 7, a second roller 8 is further arranged at the bottom of the swing arm 6, and when the driving mechanism drives the swing arm 6 to swing, the second roller 8 rolls in the groove and is used for rotary guiding.

In this embodiment, the first sealing mechanism further includes a limiting assembly 9, the limiting assembly 9 includes a spring and a steel ball, the spring is disposed at the bottom of the swing arm 6, is located between the circle center and the second roller 8, and is close to the second roller 8. The steel ball is installed on the free end of the spring, the first cover plate 2 is further provided with a limiting hole 32, the position of the limiting hole 32 corresponds to the position of the steel ball, the shape of the limiting hole is annular, the size of the limiting hole 32 is matched with the size of the steel ball, when the driving mechanism drives the swing arm 6 to swing, the steel ball rolls from one end of the limiting hole 32 to the other end in the limiting hole 32, and the swing arm 6 moves from an initial position to a target position.

Specifically, the first rotating assembly includes a first transmission shaft 24, a first bearing 26, a third seal ring 25, and a first end cap 31, the first bearing 26 is installed at the center of the first cover plate 2, the first transmission shaft 24 is supported on the first bearing 26 and penetrates through the center of the first cover plate 2, the first transmission shaft 24 is connected with the swing arm 6 through a first flat key 30, the first end cap 31 is sleeved on the first transmission shaft 24 and fixed on the first cover plate 2 through a first fastener 29, and the third seal ring 25 is installed between the first end cap 31 and the first cover plate 2; the first tooth is provided on the bottom end of the first drive shaft 24.

Specifically, the second rotating assembly includes a second transmission shaft 19, a second bearing 14, a fourth seal ring 22 and a second end cover 21, the second bearing 14 is installed at the center of the second cover plate 3, the second transmission shaft 19 is supported on the second bearing 14 and penetrates through the center of the second cover plate 3, the telescopic assembly is connected with the second transmission shaft 19 through a second flat key 23, the second end cover 21 is sleeved on the second transmission shaft 19 and fixed on the second cover plate 3 through a second fastener 20, and the fourth seal ring 22 is arranged between the second end cover 21 and the second cover plate 3; the second tooth is arranged at the top end of the second transmission shaft 19, and when the first cover plate 2 and the second cover plate 3 are butt-coupled together, the first tooth and the second tooth are meshed with each other.

As shown in fig. 1 and 5, the second end cap 21 has a positioning pin 10/pin hole 33 on its top surface, and the first end cap 31 has a pin hole 33/positioning pin 10 on its bottom surface. The locating pin 10 and the pinhole 33 when first apron 2 and second apron 3 intermeshing, align mutually for the direction when first apron 2 and second apron 3 installation butt joint, and the locating pin 10 upper end is equipped with the chamfer, conveniently with the pinhole 33 butt joint on the first apron 2/the second apron 3.

In this embodiment, the first sealing ring 1 is disposed at the bottom of the first cover plate 2, the second sealing ring 4 is disposed at the top of the second cover plate 3, a first mounting groove is disposed at the lower edge of the opening of the first sealed box chamber 34, and the first sealing ring 1 is mounted inside the first mounting groove; the top of second apron 3 is gone up along being equipped with the second mounting groove, and second sealing washer 4 is installed in the inside of second mounting groove to make first sealing washer 1 and second sealing washer 4 can contact each other. The first sealing ring 1 and the second sealing ring 4 are lip-shaped, namely, have two sealing surfaces, the tip ends of the two lip-shaped sealing rings are abutted, and each sealing surface of the first sealing ring 1 and the second sealing ring 4 is provided with a tooth-shaped structure which is perpendicular to the sealing surface, so as to increase the sealing area and further improve the sealing performance of the device.

FIGS. 6a-6d are diagrams of the process of using the dual cap transfer device of the present invention:

and (3) a butt joint process:

as shown in fig. 6a, when the equipment/components in the second sealed box chamber 35 has no need for maintenance and transportation, the first sealed box chamber 34 and the second sealed box chamber 35 are separated and work independently. At this time, the first cover plate 2 and the first seal ring 1 are installed at the opening of the first sealed tank chamber 34 as sealing components of the first sealed tank chamber 34; the second cover plate 3, the flange 5, and the second gasket 4 are mounted at an opening of the second sealed tank 35 as sealing parts of the second sealed tank 35.

When the equipment/components in the second sealed box chamber 35 needs to be repaired and transported, the supporting equipment in the factory transfers the first sealed box chamber 34 to the second sealed box chamber 35 and abuts against the second sealed box chamber 35, so that the first cover plate 2 is aligned with the second cover plate 3, and the first teeth on the first cover plate 2 are meshed with the second teeth on the second cover plate 3;

as shown in fig. 6c, the driving mechanism in the first sealed compartment 34 drives the swing arm 6 to rotate, so that the first cover plate 2 and the second cover plate 3 are coupled together. At this time, the first roller 18 is contracted to be within the inner diameter of the flange 5 (below the second cover plate 3);

as shown in fig. 6d, the door opening mechanism in the first seal housing 34 lifts the double covers (the first cover plate 2, the second cover plate 3, and the second seal ring 4 sandwiched therebetween) butt-coupled together into the first seal housing 34 and rotates aside to open the transfer passage, and the first seal housing 34 communicates with the second seal housing 35. At this time, the second sealing ring 4 isolates the lower surface of the first cover plate 2 and the upper surface of the second cover plate 3 from the atmosphere in the chamber, thereby ensuring that the two surfaces are not polluted.

Then, the auxiliary mechanism transports the equipment to be serviced in the second sealed compartment 35 into the first sealed compartment 34 or transports new process equipment in the first sealed compartment 34 into the second sealed compartment 35.

And (3) a separation process:

the door opening mechanism in the first sealed box chamber 34 resets the first cover plate 2 and the second cover plate 3, and the transfer channel is closed;

the driving mechanism in the first sealed box chamber 34 drives the swing arm 6 to rotate reversely, so that the first cover plate 2 is separated from the second cover plate 3 (the first tooth and the second tooth); at this time, the first roller 18 moves to the outermost end of the bottom of the flange 5, and the flange 5 and the second cover plate 3 are in a sealed state;

the first sealed box chamber 34 is removed by the supporting equipment in the factory building, so that the first sealed box chamber 34 is separated from the second sealed box chamber 35; at this time, the lower surface of the first cover plate 2 and the upper surface of the second cover plate 3 which are not polluted are exposed in the factory building again;

the first and second sealed enclosures 34 and 35 are returned to their respective isolated states and the transfer of process equipment between the two is completed.

The double-cover transfer device in the embodiment can provide a channel for transferring equipment in the high-grade sealed box chamber, meets the sealing requirement of the high-grade sealed box chamber, ensures alpha sealing property, realizes the sealing requirement that the sealing grade of the box chamber is superior to 2 grade, and prevents pollution diffusion; reliable positioning of butt joint of double covers (a first cover plate 2 and a second cover plate 3) is realized through application of various conical structures and guide mechanisms; and the double-cover transfer device breaks through the situation that the effective drift diameter reaches phi 640mm, and can realize the overhaul and transfer of large parts and process equipment in a high-sealed box chamber.

Example 2

The present embodiment discloses a sealing system comprising a first sealed chamber 34 and a second sealed chamber 35, and further comprising the double lid transfer device of embodiment 1.

The opening of the first sealed box chamber 34 is provided with a first cover plate 2, the opening of the second sealed box chamber 35 is provided with a second cover plate 3, equipment and other components are arranged in the second sealed box chamber 35, when the equipment in the second sealed box chamber 35 is in fault and needs to be maintained, the first cover plate 2 is in butt joint with the second cover plate 3, the first cover plate 2 and the second cover plate 3 which are coupled together are lifted and transferred into the first sealed box chamber 34 by the door opening mechanism in the first sealed box chamber 34, so that the opening of the first sealed box chamber 34 is communicated with the opening of the second sealed box chamber 35, a transfer passage between the first and second cover plates is opened, and the equipment in the second sealed box chamber 35 can be transferred into the first sealed box chamber 34 for maintenance.

In this embodiment, the diameter of the opening of the first sealed box chamber 34 and the diameter of the opening of the second sealed box chamber 35 are larger than Φ 640mm, and the double-cover transfer device in embodiment 1 can effectively adapt to such a large-diameter opening and ensure the sealing performance thereof, thereby facilitating the transfer and maintenance of large-scale equipment.

It will be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present invention, and the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (11)

1. A double-cover transfer device is characterized by comprising a first sealing mechanism, a second sealing mechanism and a door opening mechanism,

the first sealing mechanism comprises a first cover plate (2), a swing arm (6), a first rotating assembly and a first sealing ring (1),

the first cover plate (2) is arranged in an opening of a first sealed box chamber (34), the longitudinal section of the opening of the first sealed box chamber (34) is in an inverted cone shape, the longitudinal section of the first cover plate (2) is in an inverted cone shape matched with the opening shape of the first sealed box chamber (34), the first sealing ring (1) is used for sealing between the first cover plate (2) and the first sealed box chamber (34) and is positioned outside the first cover plate (2), the first rotating assembly penetrates through the center of the first cover plate (2), the first rotating assembly is provided with first teeth, one end of the swing arm (6) is connected with the first rotating assembly,

the second sealing mechanism comprises a second cover plate (3), a second sealing ring (4), a second rotating component, a telescopic component and a flange (5),

the flange (5) is fixedly arranged in an opening of a second sealed box chamber (35), the second cover plate (3) is arranged in an inner hole of the flange (5), the longitudinal section of the inner hole of the flange (5) is in an inverted cone shape, the longitudinal section of the second cover plate (3) is in an inverted cone shape matched with the inner hole shape of the flange (5), the contact surface between the first cover plate (2) and the first sealed box chamber (34) is a first contact surface, the contact surface between the second cover plate (3) and the flange (5) is a second contact surface, the second contact surface is the same plane along the first contact surface downwards, the second sealing ring (4) is used for sealing between the second cover plate (3) and the flange (5), the second sealing ring is positioned on the outer side of the second cover plate (3), the second rotating assembly is arranged at the center of the second cover plate (3) in a penetrating manner, and is provided with second teeth which can be meshed with the first teeth,

the telescopic component is arranged at the bottom of the second cover plate (3) and connected to the second rotating component, the telescopic end of the telescopic component is positioned under the flange (5),

the door opening mechanism is arranged in the first sealed box chamber (34),

when the first teeth are meshed with the second teeth, the swing arm (6) is driven to move, so that the first rotating assembly and the second rotating assembly are driven to rotate, the telescopic end of the telescopic assembly is contracted to the position below the second cover plate (3) from the position below the flange (5), and the door opening mechanism is used for lifting the meshed first cover plate (2) and the meshed second cover plate (3) into the first sealed box chamber (34).

2. Double cap transfer device according to claim 1, wherein the telescoping assembly comprises a turntable (17), a connecting rod (16), a pin (15), a bearing block (36) and a first roller (18),

carousel (17) set firmly in second rotating assembly's bottom, bearing frame (36) are installed the bottom of second apron (3), the one end of connecting rod (16) with carousel (17) are connected, the other end with the one end of pin rod (15) is connected, the other end of pin rod (15) passes bearing frame (36), and first gyro wheel (18) are located pin rod (15) are kept away from the one end of connecting rod (16), and the gyro wheel is in under flange (5).

3. The double lid transfer device according to claim 2, wherein the bottom of the flange (5) is sloped and the end of the flange (5) remote from the second lid plate (3) is higher than the end of the flange (5) close to the second lid plate (3),

the device also comprises a driving mechanism, wherein the driving mechanism is arranged in the first sealed box chamber (34), and the output end of the driving mechanism is connected with the swing arm (6).

4. The double cap transfer device according to claim 3, wherein the first sealing mechanism further comprises a limiting plate (7), the limiting plate (7) is disposed on the first cover plate (2), the limiting plate (7) is provided with an annular groove,

and a second roller (8) is further arranged at the bottom of the swing arm (6), and when the driving mechanism drives the swing arm (6) to swing, the second roller (8) rolls in the groove.

5. The double lid transfer device according to claim 4, wherein the first sealing mechanism further comprises a limiting assembly (9), the limiting assembly (9) comprising a spring and a steel ball, the spring being provided at the bottom of the swing arm (6), the steel ball being mounted on a free end of the spring,

the first cover plate (2) is further provided with a limiting hole (32), the position of the limiting hole (32) corresponds to the position of the steel ball, the limiting hole is annular, the size of the limiting hole (32) is matched with the size of the steel ball, when the driving mechanism drives the swing arm (6) to swing, the steel ball rolls from one end of the limiting hole (32) to the other end in the limiting hole (32), and the swing arm (6) moves from an initial position to a target position.

6. The double cap transfer device according to claim 1, wherein the first rotation assembly comprises a first transmission shaft (24), a first bearing (26), a third sealing ring (25), a first end cap (31),

the first bearing (26) is mounted at the center of the first cover plate (2), the first transmission shaft (24) is supported on the first bearing (26) and penetrates through the center of the first cover plate (2), the first transmission shaft (24) is connected with the swing arm (6) through a first flat key (30), the first end cover (31) is sleeved on the first transmission shaft (24) and fixed on the first cover plate (2), and the third sealing ring (25) is arranged between the first end cover (31) and the first cover plate (2);

the first teeth are arranged on the bottom end of the first transmission shaft (24).

7. The double cap transfer device according to claim 6, wherein the second rotation assembly comprises a second transmission shaft (19), a second bearing (14), a fourth sealing ring (22), a second end cap (21),

the second bearing (14) is mounted at the center of the second cover plate (3), the second transmission shaft (19) is supported on the second bearing (14) and penetrates through the center of the second cover plate (3), the telescopic assembly is connected with the second transmission shaft (19) through a second flat key (23), the second end cover (21) is sleeved on the second transmission shaft (19) and fixed on the second cover plate (3), and the fourth sealing ring (22) is arranged between the second end cover (21) and the second cover plate (3);

the second tooth is arranged at the top end of the second transmission shaft (19).

8. The double cap transfer device according to claim 7, wherein the second end cap (21) is provided with positioning pins (10)/pin holes (33) on the top surface and the first end cap (31) is provided with corresponding pin holes (33)/positioning pins (10) on the bottom surface.

9. The double lid transfer device according to any of claims 1-8, wherein the first sealing ring (1) is provided at the bottom of the first cover plate (2) and the second sealing ring (4) is provided at the top of the second cover plate (3) such that the first sealing ring (1) and the second sealing ring (4) can be in contact.

10. Double cap transfer device according to claim 8, wherein the first sealing ring (1) and the second sealing ring (4) are lip-shaped and each sealing surface of the first sealing ring (1) and the second sealing ring (4) is provided with a tooth-shaped structure for increasing the sealing area.

11. A sealing system comprising a first sealed chamber (34) and a second sealed chamber (35), characterized in that it further comprises a double lid transfer device according to any one of claims 1-10.

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