CN209245567U - The orifice sealing device of melt pit suction line - Google Patents
The orifice sealing device of melt pit suction line Download PDFInfo
- Publication number
- CN209245567U CN209245567U CN201821833707.0U CN201821833707U CN209245567U CN 209245567 U CN209245567 U CN 209245567U CN 201821833707 U CN201821833707 U CN 201821833707U CN 209245567 U CN209245567 U CN 209245567U
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- seal lid
- flange seal
- connector
- suction line
- flange
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Abstract
The utility model relates to a kind of orifice sealing devices of melt pit suction line, the connector and the sealing ring between the flange seal lid and connector being socketed including flange seal lid, for pipeline, the flange seal, which covers, offers test hole, lifting lug is equipped at the top end face of the flange seal lid, locking assembly is equipped between the connector and flange seal lid, the flange seal lid is removably connected to the connector by the locking assembly.The orifice sealing device of the utility model melt pit suction line can be sealed to ensure safety the nozzle of melt pit suction line, and have the advantages that convenient for disassembly and assembly and structure is simple.
Description
Technical field
The utility model relates to pipeline field of sealing technology, in particular to the pipe of the melt pit suction line of a kind of nuclear power plant containment shell
Mouth sealing device.
Background technique
Containment sump is located in reactor building ring corridor region, and effect is the coolant after collection accident in containment
And spray solution, water source is provided for the recycling stage.Independent melt pit suction line, the pipe of the suction line are disposed in melt pit
Mouthful require to carry out temporary sealing with special facilities in following two situation: (1) pipeline where was passed through at progress about four hours
When wearing part test；(2) when the failure of suction line valve downstream need to carry out Disintegration overhaul during major overhaul.
Currently, common temporary sealing mode is directly welded at pipe cap on the nozzle of melt pit suction line, thus real
The sealing of existing line up, in other words, to seal the nozzle of melt pit suction line, it is necessary to pipe cap is welded, conversely,
To reopen nozzle, it is necessary to be cut to pipe cap, such mode is not only complicated for operation, great work intensity, the time
It is long, and occupy a large amount of test period or repair time；Moreover, because the position where the melt pit suction line of containment is empty
Between it is narrow, if being welded, being polished or being cut in narrow space every time, tiny metal powder is easy for entering
Into pipeline, so that effective cleaning can not be carried out inside pipeline, or even influence the opening and closing of valve downstream, it is serious even
There may be security risks；In addition, the space due to installation is narrower, testing crew be often difficult to carry out pipe cap dismounting and
It carries.
Therefore, there is an urgent need for one kind can line up be sealed to ensure safety, and convenient for disassembly and assembly and structure is simple, carries
The orifice sealing device of convenient melt pit suction line overcomes above-mentioned defect.
Utility model content
Based on this, it is necessary to be directed to prior art problem, provide a kind of orifice sealing device of melt pit suction line, energy
Enough line ups are sealed to ensure safety, and have the advantages that convenient for disassembly and assembly and structure simply, convenient in carrying.
To achieve the goals above, the utility model provides a kind of orifice sealing device of melt pit suction line comprising
Flange seal lid, the connector being socketed for pipeline and the sealing ring between the flange seal lid and connector, institute
It states flange seal and covers and offer test hole, lifting lug, the connector and flange are equipped at the top end face of the flange seal lid
Locking assembly is equipped between sealing cover, the flange seal lid is removably connected to the connection by the locking assembly
Part.
Preferably, the flange seal lid includes flange, cover board and end socket, the flange is set to the close institute of the cover board
The side of connector is stated, the end socket is set to the side far from the connector of the cover board, and the lifting lug is set to the envelope
On head.
Specifically, the end socket is butterfly structure.
Preferably, the locking assembly includes screw bolt and nut, the flange seal lid offers the first connecting hole, described
Connector offers the second connecting hole corresponding with first connecting hole, and the bolt passes through first connecting hole and the
Two connecting holes simultaneously cooperate with the nut.
Preferably, all locking assemblies are equidistantly spaced from along the central axis of the flange seal lid in circumferential.
Preferably, the connector is face-flange, the bottom of the flange seal lid has and the face-flange
The matched planar structure of top end face.
Preferably, the lifting lug is equidistantly spaced from along the central axis of the flange seal lid in circumferential.
Preferably, an accommodating cavity is formed in the flange seal lid, to accommodate the external device (ED) being set at nozzle.
Preferably, the test hole is set to the middle part of the flange seal lid.
Compared with prior art, the connector due to being provided with flange seal lid and for being socketed with pipeline, and connector
Locking assembly is equipped between flange seal lid, flange seal lid is removably connected to connector by locking assembly, therefore makes
User removably can seal or open according to actual needs nozzle, effectively to avoid tradition by welding into close
Envelope, and the phenomenon that caused fine metal powder is entered by nozzle in pipeline of polishing or cut is avoided, so that
Effective cleaning is kept inside pipeline, and then avoids impacting the opening and closing of valve downstream, it is highly-safe, moreover, the device
Structure is simple, convenient for disassembly and assembly, to reduce working strength and shorten built-up time；Again due to being set at the top end face of flange seal lid
There is lifting lug, the setting of lifting lug can not only realize the fast assembling-disassembling between flange seal lid and connector, and close convenient for flange
Transhipment after closure removal.
Detailed description of the invention
Fig. 1 is the orifice sealing device of the utility model melt pit suction line on being installed on pipeline Shi Zheng apparent direction
Cross-sectional view.
Fig. 2 is the cross-sectional view of A--A in Fig. 1.
Specific embodiment
For technology contents, the construction feature, the objects and the effects that the utility model is described in detail, below in conjunction with implementation
Mode simultaneously cooperates attached drawing to be explained in detail.
Referring to FIG. 1-2, the orifice sealing device 100 of the melt pit suction line of the utility model include flange seal lid 1,
Sealing ring 2 and connector 3 for being socketed with pipeline 200, sealing ring 2 are set between flange seal lid 1 and connector 3, flange
The test hole 11 for filling the water and connecting is offered on sealing cover 1, test hole 11 is set to the middle part of flange seal lid 1, thus just
Connection in filling the water and with external testing element 300；Lifting lug 12 is equipped at the top end face of flange seal lid 1, lifting lug 12 is set
Set the fast assembling-disassembling that can not only be realized between flange seal lid 1 and connector 3, and after removing convenient for flange seal lid 1
Transhipment；Locking assembly 4 is equipped between connector 3 and flange seal lid 1, flange seal lid 1 is removably connected by locking assembly 4
It is connected to connector 3, to realize fast sealing and the dismounting of nozzle 200a in crawl space, structure is simple and easy to operate,
And then it saves a large amount of time.More specifically, as follows:
Flange seal lid 1 includes flange 13, cover board 14 and end socket 15 referring to FIG. 1-2, and flange 13 is set to leaning on for cover board 14
The side of nearly connector 3, consequently facilitating the connection between connector 3 and flange seal lid 1, end socket 15 is set to the separate of cover board 14
The side of connector 3, lifting lug 12 are set on end socket 15.Specifically, cover board 14 be a cylindrical side cover, end socket 15 cover in
Simultaneously an accommodating cavity 16 is collectively formed with cover board 14 in the side of cover board 14, so that an accommodating cavity 16 is formed in flange seal lid 1,
To accommodate the external device (ED) being set at nozzle 200a, test hole 11 is connected to accommodating cavity 16, and the setting of accommodating cavity 16 can not only
It is enough to provide a cushion space for test, to improve security performance, and enable between test hole 11 and nozzle 200a
Certain safe distance is kept, structure is simple and security performance is high.It is preferably that end socket 15 is butterfly structure, due to end socket 15
It is advantageous for avoiding the anti-whirlpool being arranged at nozzle 200a in this way to increase the internal volume of accommodating cavity 16 for a butterfly structure
Whirlpool device, therefore experimenter is not necessarily to remove anti-whirlpool device in test, simplifies operation and has saved the time.
Referring to FIG. 1-2, for example, connector 3 is face-flange, the internal diameter and 200 lateral surface of pipeline of face-flange
200b matching, to realize being tightly sleeved for face-flange and 200 lateral surface 200b of pipeline, face-flange and nozzle 200a installation
When, face-flange is socketed on 200 lateral surface 200b of pipeline and the top end face of face-flange is equal with nozzle 200a, flange seal lid
1 bottom has the matched planar structure (not shown) of top end face with face-flange, to realize connector 3 and flange seal
Close connection between lid 1.
The setting of locking assembly 4 at least two referring to FIG. 1-2, all locking assemblies 4 are along the center of flange seal lid 1
Axis is equidistantly spaced from circumferential, and all locking assemblies 4 can jointly lock flange seal lid 1 and connector 3, thus
Reach more preferably sealing effect.For example, locking assembly 4 includes bolt 41 and nut 42, and flange seal lid 1 offers first
Connecting hole 17, connector 3 offer second connecting hole 31 corresponding with the first connecting hole 17, and bolt 41 passes through the first connecting hole
17 and second connecting hole 31 and with nut 42 cooperate, utilize between bolt 41 and nut 42 it is detachable cooperation indirectly realization method
Being detachably connected between blue sealing cover 1 and connector 3, structure is simple and convenient for disassembly and assembly.
Lifting lug 12 is set as at least two referring to FIG. 1-2, and all lifting lugs 12 are in along the central axis of flange seal lid 1
It is circumferentially equidistantly spaced from, is preferably, all lifting lugs 12 are in the top end face for being symmetrically arranged in flange seal lid 1, to make
It obtains flange sealing cover 1 and remains horizontal, to improve stability when flange seal lid 1 transports.As long as in use, by hanging
Ear 12 is attached with external device (ED), can be realized and having fallen lifting lug 12 flange seal lid 1 portable assembling and disassembling and
Transhipment, therefore lifting lug 12 can be improved the connective stability between flange seal lid 1 and external device (ED) in arrangement spaced apart, thus
Convenient for the transport of flange seal lid 1.In this present embodiment, lifting lug 12 is set as two, and two lifting lugs 12 are in symmetrically to be arranged in
The two sides of test hole 11, but not limited to this.
Fig. 1 to Fig. 2 is please referred to, to the working principle of the orifice sealing device 100 of the melt pit suction line of the utility model
It is further described:
When installation, it is socketed on connector 3 is close at 200 lateral surface 200b of pipeline and by 2 company of being installed on of sealing ring
On fitting 3, flange seal lid 1 is covered in nozzle 200a, adjusts the relative position between flange sealing cover 1 and connector 3, so that
The first connecting hole 17 on flange seal lid 1 is directed at second connecting hole 31 corresponding with first connecting hole 17, and bolt 41 is across the
One connecting hole 17 and the second connecting hole 31 simultaneously cooperate with nut 42, so that flange seal lid 1, sealing ring 2 and connector 3 three
It is fitted closely between person, finally, testing element 300 is installed on test hole 11；When dismounting, successively by nut 42,41 and of bolt
Flange seal lid 1 is removed.Wherein, when installing and removing flange sealing cover 1, lifting lug 12 and external hoisting device are carried out
Connection, can auxiliary flange sealing cover 1 dismounting and transport, to improve the convenience of dismounting and transhipment.
Connector 3 due to being provided with flange seal lid 1 and for being socketed with pipeline 200, and connector 3 and flange seal
Locking assembly 4 is equipped between lid 1, flange seal lid 1 is removably connected to connector 3 by locking assembly 4, therefore user can
Nozzle 200a is removably sealed or opens according to actual needs, effectively to avoid tradition by welding into sealing,
And avoid the fine metal powder caused by polishing or cutting from entering the phenomenon in pipeline 200 by nozzle 200a, thus
So that keeping effective cleaning inside pipeline 200, and then avoid impacting the opening and closing of valve downstream, it is highly-safe, moreover,
The apparatus structure is simple, convenient for disassembly and assembly, to reduce working strength and shorten built-up time；Again due to the top of flange seal lid 1
Endface is equipped with lifting lug 12, and the setting of lifting lug 12 can not only realize the fast assembling-disassembling between flange seal lid 1 and connector 3,
And the transhipment after being removed convenient for flange seal lid 1；At the same time, the setting of test hole 11 can either fill the water, and can be used in
It is excessive and influence the whole air-tightness of device to avoid traditionally aperture for the connection of detecting element；In addition, due to connector 3
It is directly exposed in air or is soaked in coolant liquid when nozzle 200a is opened, this may result in connector 3 in this way because of outside
Abrasion or small get rusty and make the contact surface of connector 3 become coarse, and the utility model is in flange seal lid 1 and connector
Sealing ring 2 is provided between 3, the setting of sealing ring 2 can effectively offset the connection between flange sealing cover 1 and connector 3
Gap, so that it is guaranteed that the sealing effect of device, moreover, the setting of sealing ring 2 can be effectively reduced the turnover rate of connector 3, from
And connector 3 and pipeline 200 is avoided to carry out being dismounted for multiple times because of part exchanging under crawl space.
Above disclosed is only the preferred embodiments of the utility model, and the power of the utility model cannot be limited with this
Sharp range, therefore equivalent variations made according to the claim of the utility model belong to the range that the utility model is covered.
Claims (9)
1. a kind of orifice sealing device of melt pit suction line, it is characterised in that: including flange seal lid, for being socketed with pipeline
Connector and the sealing ring between the flange seal lid and connector, the flange seal, which covers, offers test
Hole is equipped with lifting lug at the top end face of the flange seal lid, and locking assembly, institute are equipped between the connector and flange seal lid
It states flange seal lid and the connector is removably connected to by the locking assembly.
2. the orifice sealing device of melt pit suction line according to claim 1, it is characterised in that: the flange seal lid
Including flange, cover board and end socket, the flange is set to the side close to the connector of the cover board, and the end socket is set to institute
The side far from the connector of cover board is stated, the lifting lug is set on the end socket.
3. the orifice sealing device of melt pit suction line according to claim 2, it is characterised in that: the end socket is butterfly
Structure.
4. the orifice sealing device of melt pit suction line according to claim 1, it is characterised in that: the locking assembly packet
Screw bolt and nut is included, the flange seal lid offers the first connecting hole, and the connector offers and first connecting hole
Corresponding second connecting hole, the bolt pass through first connecting hole and the second connecting hole and cooperate with the nut.
5. the orifice sealing device of melt pit suction line according to claim 1, it is characterised in that: all locking
Component is equidistantly spaced from along the central axis of the flange seal lid in circumferential.
6. the orifice sealing device of melt pit suction line according to claim 1, it is characterised in that: the connector is flat
Face flange, the bottom of the flange seal lid have the matched planar structure of top end face with the face-flange.
7. the orifice sealing device of melt pit suction line according to claim 1, it is characterised in that: the lifting lug is described in
The central axis of flange seal lid is equidistantly spaced from circumferential.
8. the orifice sealing device of melt pit suction line according to claim 1, it is characterised in that: the flange seal lid
One accommodating cavity of interior formation, to accommodate the external device (ED) being set at nozzle.
9. the orifice sealing device of melt pit suction line according to claim 1, it is characterised in that: the test hole is set to
The middle part of the flange seal lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833707.0U CN209245567U (en) | 2018-11-07 | 2018-11-07 | The orifice sealing device of melt pit suction line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821833707.0U CN209245567U (en) | 2018-11-07 | 2018-11-07 | The orifice sealing device of melt pit suction line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209245567U true CN209245567U (en) | 2019-08-13 |
Family
ID=67527461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821833707.0U Active CN209245567U (en) | 2018-11-07 | 2018-11-07 | The orifice sealing device of melt pit suction line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209245567U (en) |
-
2018
- 2018-11-07 CN CN201821833707.0U patent/CN209245567U/en active Active
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