CN207516169U - It is inside and outside to pull-type Nozzle Zone of Vessels pressure testing device - Google Patents
It is inside and outside to pull-type Nozzle Zone of Vessels pressure testing device Download PDFInfo
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- CN207516169U CN207516169U CN201721322947.XU CN201721322947U CN207516169U CN 207516169 U CN207516169 U CN 207516169U CN 201721322947 U CN201721322947 U CN 201721322947U CN 207516169 U CN207516169 U CN 207516169U
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- pressure vessel
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- pressure testing
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Abstract
The utility model discloses inside and outside one kind to pull-type Nozzle Zone of Vessels pressure testing device, including the take over sealing device for being sealedly connected on pipe connecting flange upper flange lid and inside pressure vessel, take over sealing device includes the seal pipe with take over coaxial arrangement, the sealing plate parallel with blind flange is equipped in seal pipe, it is equipped in the one end of seal pipe far from pressure vessel to drawing cover board, to cover board is drawn to be connected with blind flange using Screw arbor with nut at both-ends, sealing plate is sleeved on Screw arbor with nut at both-ends, therebetween it is equipped with sealing structure, the curved surface ring flat-plate coincideing with pressure vessel inner surface configuration is connected with close to one end of pressure vessel in seal pipe, curved surface ring flat-plate is pressed on the inner surface of pressure vessel, seal washer II is equipped between curved surface ring flat-plate and the inner surface of pressure vessel, it is taken on blind flange equipped with pressure testing.The utility model can realize the local pressure testing of laminated force container, shorten the transformation duration of laminated force container, reduce the improvement cost of laminated force container.
Description
Technical field
The utility model is related to a kind of local pressure testing devices, particularly a kind of inside and outside to pull-type Nozzle Zone of Vessels pressure testing dress
It puts.
Background technology
Certain technological processes of petrochemical production device when optimizing or changing, need to some pressure vessels into
Row local flow improvement, for example increase in equipment new take over or other attachmentes or the change original bore taken over of equipment.
TSG21-2016《Fixed safe technology of pressure vessel Supervision Code》In the 5.2.5 articles transformation and the pressure test of major maintenance
Regulation：Main pressurized element is replaced or increased newly with welding (bonding) method, is answered being transformed in repair of a major character work progress
When progress pressure test.
The equipment of maintenance and renovation is the equipment to have come into operation in device, and construction is completed generally during device shut-down (breakdown) mainteance
Content.Since equipment has come into operation, heat preservation, pipeline, internals of equipment etc. have been completed, and the difficulty maximum to the pressure testing of equipment entirety is just
That equipment nozzle flange is removed and installs blind plate, secondly be exactly equipment water on the whole and drainage works amount it is larger, above-mentioned 2 points
Other than having a great impact to the duration, manpower, equipment and the material of consumption are also huge.After local flow improvement,
Influence very little to equipment integral strength, therefore the water pressure test is carried out at scrap build, it is connect by the water pressure test to examine
The intensity and tightness of pipe are feasible.
Single pressure container carries out local pressure experiment with pressure-testing case and has obtained extensively should in petrochemical industry construction site
With being no longer described in detail herein.But pressure-testing case cannot be used for laminated force container, reason is：In pressure vessel
Pressure-testing case is welded on composite bed, composite bed can be torn in local pressure testing because of intensity deficiency.
At present, there are no more perfect local pressure testing solutions for the pressure vessel equipped with composite bed.
Invention content
The utility model is provided inside and outside one kind to solve technical problem present in known technology to pull-type pressure vessel
Take over pressure testing device, the device can realize the local pressure testing of laminated force container.
The utility model is adopted the technical scheme that solve technical problem present in known technology：It is right inside and outside one kind
Pull-type Nozzle Zone of Vessels pressure testing device, including being sealedly connected on pipe connecting flange upper flange lid and connecing inside pressure vessel
Tube sealing device, the take over sealing device include the seal pipe with take over coaxial arrangement, and the diameter of the seal pipe, which is more than, to be connect
The diameter of pipe, the tube wall of the seal pipe are staggered with the weld seam taken over pressure vessel, in the seal pipe be equipped with it is described
The parallel sealing plate of blind flange is equipped with parallel with the blind flange to drawing lid in the one end of the seal pipe far from pressure vessel
Plate, described pair is drawn cover board to be connected with the blind flange using Screw arbor with nut at both-ends, and one end of the Screw arbor with nut at both-ends is consolidated with the blind flange
It connects, the other end is pierced by described pair of drawing cover board, and the end that described pair of drawing cover board is pierced by the Screw arbor with nut at both-ends is equipped with locknut, described close
Sealing plate is sleeved on the Screw arbor with nut at both-ends, therebetween equipped with sealing structure, in the seal pipe close to one end of pressure vessel
The curved surface ring flat-plate coincideing with pressure vessel inner surface configuration is connected with, the curved surface ring flat-plate is pressed on the inner surface of pressure vessel,
Seal washer II is equipped between the curved surface ring flat-plate and the inner surface of pressure vessel, is connect on the blind flange equipped with pressure testing
Pipe.
The sealing structure includes the stuffing-box affixed with the sealing plate, and it is remote that the stuffing-box is arranged on the sealing plate
The side of tripping force container is equipped with filler in the stuffing-box, solid on the one end of the stuffing-box far from the sealing plate
It is connected to gland.
The filler is graphite rope.
Observation handle hole is equipped on the side wall of the seal pipe, it is separate that the observation handle hole is arranged on the sealing plate
The side of pressure vessel.
At least three pieces of positioning plates for being equipped with and being evenly distributed on cover board are drawn at described pair, all positioning plates are looped around institute
It states around seal pipe, the positioning plate is staggeredly arranged with the observation handle hole.
Equal power backing plate is equipped between the locknut and described pair draw cover board.
Seal washer I is equipped between the blind flange and pipe connecting flange.
The utility model has the advantages and positive effects of：It is installed in one by the place of taking over being transformed in pressure vessel
Outside to pull-type pressure testing device, intensity that transformation takes over and tight is examined by carrying out the water pressure test to the pressure testing device
Property, dependable performance is easy to use, avoids welding of the local pressure testing device on pressure vessel ontology, solves laminated
The problem of force container tears composite bed due to welding local pressure-testing case, can realize the local pressure testing of laminated force container, contract
The transformation duration of short laminated force container reduces the improvement cost of laminated force container.And the utility model structure letter
Singly, it is at low cost convenient for making.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the structure diagram of the utility model application；
Fig. 3 is the seal pipe structure diagram of the utility model.
In figure：1st, seal washer I；2nd, blind flange；3rd, pressure testing is taken over；4th, curved surface ring flat-plate；5th, seal pipe；6th, sealing plate；7、
To drawing cover board；8th, gland；9th, equal power backing plate；10th, stuffing-box；11st, positioning plate；12nd, pressure vessel；13rd, seal washer II；14、
Screw arbor with nut at both-ends；15th, it takes over；16th, handle hole is observed；17th, graphite rope；18th, locknut.
Specific embodiment
For that can further appreciate that the invention, features and effects of the utility model, the following examples are hereby given, and coordinates
Detailed description are as follows for attached drawing：
~Fig. 3 is please referred to Fig.1, it is a kind of inside and outside to pull-type Nozzle Zone of Vessels pressure testing device, it is taken over including being sealedly connected on
Flange upper flange lid 2 and the take over sealing device inside pressure vessel 12, the take over sealing device include and take over 15
The seal pipe 5 of coaxial arrangement, the diameter of the seal pipe 5 are more than the diameter of take over 15, tube wall and the take over 15 of the seal pipe 5
It is staggered with the weld seam of pressure vessel 12, the sealing plate 6 parallel with the blind flange 2 is equipped in the seal pipe 5, described close
The one end of tube sealing 5 far from pressure vessel 12 is equipped with parallel with the blind flange 2 to drawing cover board 7, and described pair is drawn cover board 7 and described
Blind flange 2 is connected using Screw arbor with nut at both-ends 14, and one end of the Screw arbor with nut at both-ends 14 and the blind flange 2 are affixed, and the other end is pierced by institute
It states to drawing cover board 7, the end that described pair of drawing cover board 7 is pierced by the Screw arbor with nut at both-ends 14 is equipped with locknut 18, and the sealing plate 6 is set with
It is affixed close to one end of pressure vessel 12 in the seal pipe 5 therebetween equipped with sealing structure on the Screw arbor with nut at both-ends 14
There is the curved surface ring flat-plate 4 coincideing with 12 inner surface configuration of pressure vessel, the curved surface ring flat-plate 4 is pressed in the inner surface of pressure vessel 12
On, seal washer II 13 is equipped between the curved surface ring flat-plate 4 and the inner surface of pressure vessel 12, is set on the blind flange 2
There is pressure testing take over 3.
In the present embodiment, the sealing structure includes the stuffing-box 10 affixed with the sealing plate 6, the stuffing-box 10
The side of the sealing plate 6 far from pressure vessel 12 is arranged on, filler is equipped in the stuffing-box 10, in the stuffing-box 10
Gland 8 is connected on one end far from the sealing plate 6.In the present embodiment, the filler is graphite rope 17.In the sealing
The side wall of pipe 5 is equipped with observation handle hole 16, and the observation handle hole 16 is arranged on the sealing plate 6 far from pressure vessel 12
Side.By observe handle hole 16 can observe stuffing-box 10 in seal pipe 5 whether leak, if leak, need work people
Tool is stretched into the lock bolt observed handle hole 16 and tighten gland 8, compacted graphite rope 17 by member.For convenience to drawing cover board 7
Installation, at least three pieces of positioning plates 11 for being equipped with and being evenly distributed on cover board 7 are drawn at described pair, and all positioning plates 11 are looped around
Around the seal pipe 5, the positioning plate 5 is staggeredly arranged with the observation handle hole 19.In order to make the stress to drawing cover board 7 more
Add uniformly, equal power backing plate 9 is equipped between the locknut 18 and described pair draw cover board 7.The blind flange 2 and pipe connecting flange it
Between be equipped with seal washer I 1.
The blind flange 2 is consistent with the pipe connecting flange model after scrap build, matches.It should be at least on blind flange 2
Two pressure testing take overs 3, for connecting pressure testing water pipe and pressure gauge；Described 14 one end of Screw arbor with nut at both-ends is threaded, not threaded
One end will be welded into an entirety with blind flange 2, and when welding has to ensure the verticality of Screw arbor with nut at both-ends 14；Take over sealing device
Including seal pipe 5, curved surface ring flat-plate 4, seal washer II 13, sealing plate 6, stuffing-box 10, graphite rope 17 and gland 8, curved surface ring flat-plate 4
It is welded with seal pipe 5, is crimped on the inner surface of pressure vessel 12 by the sealing of seal washer II 13, has to ensure curved surface ring
The inner surface good seal of plate 4 and pressure vessel 12.When above-mentioned take over sealing device is installed inside pressure vessel, seal pipe
Tube wall has to avoid the newly-increased weld seam taken over.
During installation, outside pressure vessel 12, the Screw arbor with nut at both-ends 14 being welded on blind flange 2 is passed through into improved take over
15, seal washer I 1 is set on the flange of take over 15, and centering Screw arbor with nut at both-ends 14 tightens the connection of blind flange 2 and pipe connecting flange
Bolt realizes the sealed connection of blind flange 2 and pipe connecting flange.In the inside of pressure vessel 12, seal washer II 13 is used first
Glue is sticked on the inner surface of pressure vessel 12, and then will take over sealing device using jack is sleeved on Screw arbor with nut at both-ends 14, centering,
Curved surface ring flat-plate 4 is made to be pressed on seal washer II 13, finally clogs graphite rope 17, graphite rope wants compaction in layers, must not there is gap,
It realizes the sealing between sealing plate 6 and Screw arbor with nut at both-ends 14, prevents water during pressure testing from being leaked at graphite rope 17；The compacting of graphite rope fills up
After, gland 8 is connected on the flange of stuffing-box 10 using bolt.
Finally will be to cover board 7 be drawn to cover on the one end of seal pipe 5 far from pressure vessel 12, and make to cover board 7 is drawn to be sleeved on pair
It draws on screw rod 14, adjusts position, positioning plate 11 thereon is made to be staggered with observation handle hole 16.Then equal power backing plate 9 and lock are installed
Mother 18, and locknut 18 is tightened.
Although the preferred embodiment of the utility model is described above in conjunction with attached drawing, the utility model is not
Above-mentioned specific embodiment is confined to, above-mentioned specific embodiment is only schematical, is not restricted, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
In the case of range, many forms can also be made, these are belonged within the scope of protection of the utility model.
Claims (7)
- It is 1. a kind of inside and outside to pull-type Nozzle Zone of Vessels pressure testing device, which is characterized in that including being sealedly connected on pipe connecting flange Blind flange and the take over sealing device inside pressure vessel, the take over sealing device include close with take over coaxial arrangement Tube sealing, the diameter of the seal pipe are more than the diameter taken over, and the tube wall of the seal pipe and take over and the weld seam of pressure vessel is wrong It opens, the sealing plate parallel with the blind flange is equipped in the seal pipe, in the one end of the seal pipe far from pressure vessel Equipped with parallel with the blind flange to drawing cover board, described pair is drawn cover board to be connected with the blind flange using Screw arbor with nut at both-ends, described One end of Screw arbor with nut at both-ends and the blind flange are affixed, and the other end is pierced by described pair of drawing cover board, is pierced by the Screw arbor with nut at both-ends described Locknut is equipped with to the end for drawing cover board, the sealing plate is sleeved on the Screw arbor with nut at both-ends, therebetween equipped with sealing structure, The seal pipe is connected with the curved surface ring flat-plate coincideing with pressure vessel inner surface configuration, the curved surface close to one end of pressure vessel Ring flat-plate is pressed on the inner surface of pressure vessel, and seal washer is equipped between the curved surface ring flat-plate and the inner surface of pressure vessel II, it is taken on the blind flange equipped with pressure testing.
- It is 2. according to claim 1 inside and outside to pull-type Nozzle Zone of Vessels pressure testing device, which is characterized in that the sealing knot Structure includes the stuffing-box affixed with the sealing plate, and the stuffing-box is arranged on side of the sealing plate far from pressure vessel, Filler is equipped in the stuffing-box, gland is connected on the one end of the stuffing-box far from the sealing plate.
- It is 3. according to claim 2 inside and outside to pull-type Nozzle Zone of Vessels pressure testing device, which is characterized in that the filler is Graphite rope.
- It is 4. according to claim 1 inside and outside to pull-type Nozzle Zone of Vessels pressure testing device, which is characterized in that in the sealing The side wall of pipe is equipped with observation handle hole, and the observation handle hole is arranged on side of the sealing plate far from pressure vessel.
- It is 5. according to claim 4 inside and outside to pull-type Nozzle Zone of Vessels pressure testing device, which is characterized in that in described pair of drawing Cover board is equipped at least three pieces of positioning plates being evenly distributed, and all positioning plates are looped around around the seal pipe, described Positioning plate is staggeredly arranged with the observation handle hole.
- It is 6. according to claim 1 inside and outside to pull-type Nozzle Zone of Vessels pressure testing device, which is characterized in that in the locknut Equal power backing plate is equipped between described pair of drawing cover board.
- It is 7. according to claim 1 inside and outside to pull-type Nozzle Zone of Vessels pressure testing device, which is characterized in that in the flange Seal washer I is equipped between lid and pipe connecting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721322947.XU CN207516169U (en) | 2017-10-13 | 2017-10-13 | It is inside and outside to pull-type Nozzle Zone of Vessels pressure testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721322947.XU CN207516169U (en) | 2017-10-13 | 2017-10-13 | It is inside and outside to pull-type Nozzle Zone of Vessels pressure testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207516169U true CN207516169U (en) | 2018-06-19 |
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ID=62533011
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721322947.XU Active CN207516169U (en) | 2017-10-13 | 2017-10-13 | It is inside and outside to pull-type Nozzle Zone of Vessels pressure testing device |
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| Country | Link |
|---|---|
| CN (1) | CN207516169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677554A (en) * | 2017-10-13 | 2018-02-09 | 中石化第四建设有限公司 | It is inside and outside to pull-type Nozzle Zone of Vessels pressure testing device |
-
2017
- 2017-10-13 CN CN201721322947.XU patent/CN207516169U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677554A (en) * | 2017-10-13 | 2018-02-09 | 中石化第四建设有限公司 | It is inside and outside to pull-type Nozzle Zone of Vessels pressure testing device |
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