CN207005556U - The underwater pressurising pressure relief device of integrated form - Google Patents
The underwater pressurising pressure relief device of integrated form Download PDFInfo
- Publication number
- CN207005556U CN207005556U CN201720753423.XU CN201720753423U CN207005556U CN 207005556 U CN207005556 U CN 207005556U CN 201720753423 U CN201720753423 U CN 201720753423U CN 207005556 U CN207005556 U CN 207005556U
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- CN
- China
- Prior art keywords
- blind flange
- flange
- underwater
- pigging
- pressure relief
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A kind of underwater pressurising pressure relief device of integrated form, including：Manifold pigging flange, the pairing blind flange being connected with manifold pigging flange, wherein, match and several control valves are installed on blind flange.The utility model can not only balance submarine pipeline external and internal pressure, solve dismantling, replacing the problem that grouting socket is set under water for pigging interface blind flange；Moreover, avoid effect of the blind flange due to seawater pressure, the do not open situation of blind flange of diver occurs, and is effectively improved the quick and safe of blind flange dismounting.
Description
Technical field
It the utility model is related to underwater facility, more particularly to a kind of underwater pressurising pressure relief device of integrated form.Belong to underwater
Facility and Underwater Engineering field.
Background technology
Under water in production system, important composition equipment of the subsea manifold as subsea production system tieback, it is underwater clear
Pipe operation is essential.During pigging operations, the pigging interface blind flange on manifold need to be removed due to diver, if on supervisor
Valves leakage, then superpressure situation be present in the submarine pipeline before pigging flange, now, if diver directly dismantles blind
Orchid, internal pressure are instantaneously released, and threat is produced to the inherently safe of diver；And if external pressure is excessive, diver opens
Blind flange can be extremely difficult.Meanwhile when debugging in advance, replacement operator is may relate to, i.e.,：Need to inject nitrogen in toward pipeline, therefore,
Need the reliable pressurising grouting socket of big flow, after end of operation, underwater drainage behaviour can be carried out by double nip setting
Make, and the common underwater interface of single thread is typically unsatisfactory for requiring.
Utility model content
Main purpose of the present utility model is to overcome disadvantages mentioned above existing for prior art, and provides a kind of integrated form
Underwater pressurising pressure relief device, it can not only balance submarine pipeline external and internal pressure, solve dismounting, the water of pigging interface blind flange
The problem that lower displacement grouting socket is set；Moreover, avoid effect of the blind flange due to seawater pressure, diver does not open blind flange
Situation occur, be effectively improved blind flange dismounting quick and safe.
The purpose of this utility model is realized by following technical scheme：
A kind of underwater pressurising pressure relief device of integrated form, it is characterised in that：Including：Manifold pigging flange and manifold
The pairing blind flange of pigging flange connection, wherein, match and several control valves are installed on blind flange.
The control valve is ball valve.
The through hole of installation control valve, the through hole and blind flange closure gasket groove is distributed with the Central Symmetry of the pairing blind flange
Inner side is tangent so that submarine pipeline maritime interior waters, can all be discharged under injection gas effect.
The beneficial effects of the utility model：The utility model is because using above-mentioned technical proposal, it can not only balance sea
Bottom pipeline external and internal pressure, solve dismantling, replacing the problem that grouting socket is set under water for pigging interface blind flange；Moreover, keep away
Exempt from effect of the blind flange due to seawater pressure, the do not open situation of blind flange of diver occurs, and is effectively improved blind flange and tears open
The quick and safe unloaded.
Brief description of the drawings
Fig. 1 is the utility model overall structure diagram.
Fig. 2 is that the utility model docks blind flange and lead to the hole site schematic diagram.
Fig. 3 is the utility model blind flange and ball valve assembling schematic diagram.
Major Symbol explanation in figure：
1. manifold pigging flange, 2. pairing blind flanges, 3. first ball valves, 4 second ball valves.
Embodiment
As shown in Fig. 1-Fig. 3, the utility model includes：Manifold pigging flange 1, it is connected by screw bolts mode and pipe
The pairing blind flange 2 of the connection of remittance pigging flange 1, wherein, match and several controls are provided with using welding manner on blind flange 2
Valve (control valve of the present embodiment is the first ball valve 3 and the second ball valve 4).
The through hole of two installation control valves is distributed with the Central Symmetry of above-mentioned pairing blind flange 2, and the through hole and blind flange are close
It is tangent on the inside of seal ring groove so that submarine pipeline maritime interior waters, all to be discharged under injection gas effect.
Before diver dismantles blind flange, manually operated pressure relief ball valve, by pressure releasing that may be present in submarine pipeline,
To balance submarine pipeline external and internal pressure.Avoid effect of the blind flange due to seawater pressure, diver does not open the situation of blind flange
Occur.After pigging terminates, passed through by the first ball valve 3 toward gas, seawater is injected in submarine pipeline under injection gas effect
Second ball valve 4 is discharged.
It is described above, only it is preferred embodiment of the present utility model, not the utility model is made any formal
Limitation, every any simple modification made according to the technical essence of the utility model to above example, equivalent variations with
Modification, in the range of still falling within technical solutions of the utility model.
Claims (3)
- A kind of 1. underwater pressurising pressure relief device of integrated form, it is characterised in that：Including：It is manifold pigging flange, clear with manifold The pairing blind flange of interface tube flange connection, wherein, match and several control valves are installed on blind flange.
- 2. the underwater pressurising pressure relief device of integrated form according to claim 1, it is characterised in that：The control valve is ball Valve.
- 3. the underwater pressurising pressure relief device of integrated form according to claim 1, it is characterised in that：The pairing blind flange The through hole of installation control valve is distributed with Central Symmetry, and the through hole and blind flange closure gasket groove inner side are tangent so that in submarine pipeline Seawater, can all it be discharged under injection gas effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720753423.XU CN207005556U (en) | 2017-06-27 | 2017-06-27 | The underwater pressurising pressure relief device of integrated form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720753423.XU CN207005556U (en) | 2017-06-27 | 2017-06-27 | The underwater pressurising pressure relief device of integrated form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207005556U true CN207005556U (en) | 2018-02-13 |
Family
ID=61448156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720753423.XU Active CN207005556U (en) | 2017-06-27 | 2017-06-27 | The underwater pressurising pressure relief device of integrated form |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207005556U (en) |
-
2017
- 2017-06-27 CN CN201720753423.XU patent/CN207005556U/en active Active
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