CN105840947A - Blind plate device suitable for plugging opening of under-pressure pipeline - Google Patents
Blind plate device suitable for plugging opening of under-pressure pipeline Download PDFInfo
- Publication number
- CN105840947A CN105840947A CN201610435142.XA CN201610435142A CN105840947A CN 105840947 A CN105840947 A CN 105840947A CN 201610435142 A CN201610435142 A CN 201610435142A CN 105840947 A CN105840947 A CN 105840947A
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- CN
- China
- Prior art keywords
- blind plate
- pressure
- plectane
- endoporus
- pipeline
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- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a blind plate device suitable for plugging an opening of an under-pressure pipeline. The blind plate device comprises a round plate with a body matched with a plugged pipeline flange; an inner hole and a small hole are formed in the round plate; the inner hole is arranged in the radial direction of the round plate in a left and right penetrating manner, and the diameter of the inner hole is smaller than the thickness of the round plate; the small hole is formed in the axial direction of the round plate; one end portion of the small hole is arranged on the top face of the round plate in the shape of an opening; the other end portion of the small hole communicates with the inner hole; one end port of the inner hole is connected with a pressure meter through a detection connecting pipe; and the other end port of the inner hole is connected with a pressure relief valve through a pressure relief connecting pipe. According to the blind plate device suitable for plugging the opening of the under-pressure pipeline, after a blind plate is plugged, pressure of the inner side of the blind plate can be detected through the pressure meter, another connecting pipe communicating with the inner side of the blind plate can be used for releasing media in the pipeline, the blind plate is detached when pressure in the pipeline reaches a safety level, under-pressure operation is avoided, and using safety is guaranteed.
Description
Technical field
The present invention relates to the maintenance construction field of pipe-line equipment facility, specifically one and be applicable to block with pressure
The blind plate device of pipeline opening.
Background technology
The canonical name of blind plate (blind disk) is blind flange, is commonly using for blocking pipe mouth
Parts, it can play the isolation the same with end socket, pipe cap and welding plug, cutting function.But it is blind
Plate be a kind of can the plugging part of repeated disassembled and assembled, and the closure of end socket etc. the most no longer prepares to open.?
Petroleum chemical industry, blind plate is requisite as pipeline isolation parts, such as examines at equipment
When repairing, after valve closing, it is necessary to use the line ports that the absolute xegregating unit of blind plate is drawn, or
Person uses blind plate definitely to isolate upstream and downstream pipeline.Owing to blind plate sealing performance is good, complete for needs
The system of isolation, typically must install blind plate as reliable isolating means.
From the appearance, blind plate of the prior art be generally divided into board-like flat board blind plate, 8 word blind plates,
Plate gasket ring etc..Board-like flat board blind plate, it is simply that the solid plectane of a band handle；8 word blind plates, shape
Just as " 8 " word, one end is blind plate, and the other end is restrictor ring.
When the line ports using existing blind plate xegregating unit to draw or isolation upstream and downstream pipeline,
The valve of upstream and downstream there may be situation about being not closed completely, and may have a small amount of dielectric leakage, install blind plate additional
After, between blind plate and valve, the pressure of pipeline will accumulate as time went on, reaches pipeline intrinsic pressure
Power.When removing blind plate, be equivalent to band press operation, there is great security risk.But it is existing blind
Plate cannot detect the pressure in the pipeline of closure, also cannot be to its pressure release, it is impossible to ensures the safety of dismounting.
Summary of the invention
The technical problem to be solved is to provide a kind of simple in construction, safe being applicable to of operation
The blind plate device of closure pipeline with pressure mouth.
In order to achieve the above object, the present invention adopts the technical scheme that:
A kind of blind plate device being applicable to block pipeline with pressure mouth, including main body be and the pipeline method of closure
The plectane that orchid is matched, the inside of described plectane is respectively arranged with endoporus, aperture, and described endoporus is along circle
The radial direction of plate is left and right runs through setting, and the diameter of this endoporus is less than circle plate thickness；Described aperture edge
The axial direction of plectane is arranged, and on the opening-like end face being placed in plectane of the one end of this aperture, it is another
One end is connected with endoporus；Described endoporus Single port connects Pressure gauge, the other end by detection connecting leg
Mouth connects relief valve by pressure release connecting leg.
Above-mentioned a kind of be applicable to the blind plate device of closure pipeline with pressure mouth, justifying owing to have employed
Intralaminar part is provided with endoporus, and is connected to Pressure gauge, relief valve at endoporus two ends, is tearing open
During except blind plate, it is possible to prevent pipeline with pressure, thus ensure that safe disassembling section.
As a kind of a kind of improvement being applicable to block the blind plate device of pipeline with pressure mouth of the present invention, described
Diameter of bore, less than the 1/2 of circle plate thickness, had the most both met the requirement measuring pressure, and had reached to judge blind plate
Whether gap exists pressure energy, pressure of simultaneously can releasing, and can ensure that again blind plate intensity.
Endoporus described above is corresponded respectively to hole wall and the plectane in the end face of plectane, direction, bottom surface
Minimum range between end face, bottom surface is more than 3mm, in actual production process, the pipeline of different-diameter
Blind plate variable thickness sample, can be according to the conventional blind plate thickness of the standard blind plate thickness corresponding with pressure rating
Make corresponding adjustment.
As a kind of a kind of improvement being applicable to block the blind plate device of pipeline with pressure mouth of the present invention, described
The centrage of the endoporus centrage axial with plectane intersects, and the centrage of endoporus and the axial line of plectane intersect,
Relief valve and Pressure gauge can be made to be all placed in the distalmost end of blind plate, it is simple to blind plate is installed and operation, meanwhile,
It is possible to prevent impurity blocking impulse point in system.
As a kind of a kind of improvement being applicable to block the blind plate device of pipeline with pressure mouth of the present invention, described
The two-port of endoporus uses to seal with detection connected mode between connecting leg, pressure release connecting leg respectively and welds,
Use this connected mode both to have firm, the advantage of good seal performance of connection, possess again stronger anti-corruption
Erosion property, can meet medium is non-aggressive or corrosive industrial requirements such as Oil, Water, Gas.
In such scheme, also including that described detection connecting leg is also associated with manually detecting valve, this manually detects
Valve is positioned between port and the Pressure gauge of endoporus correspondence side, there is the situation of pressure in pipeline
Under, can carry out dismantling blind plate manual operation according to manometric video data, operate the most flexible, tool
There is certain controllability, operational risk is greatly reduced.
Compared with prior art, the beneficial effects of the present invention is:
1) a kind of blind plate device being applicable to block pipeline with pressure mouth of the present invention, after blind plate blocks,
Even if the valve seal of upstream the most sternly has leakage, the medium of accumulation in the pipeline between blind plate and valve
Reach certain pressure, by the pressure inside Pressure gauge detection blind plate, and can be able to pass through in another and blind plate
The medium in pipeline released by the connecting leg that side communicates, and when the pressure in pipeline reaches safe, then dismantles blind
Plate, it is to avoid band press operation, it is ensured that the safety of use；
2) a kind of installation and removal operation being applicable to block the blind plate device of pipeline with pressure mouth of the present invention
Identical with conventional blind plate, it is simpler, convenient to use；
3) a kind of blind plate device simple in construction being applicable to block pipeline with pressure mouth of the present invention, it is easy to add
Work makes.
Accompanying drawing explanation
Fig. 1 is a kind of blind plate device being applicable to block pipeline with pressure mouth of the present invention；
Fig. 2 be in Fig. 1 A-A to cross-sectional schematic.
Figure is numbered: 1, plectane；2, Pressure gauge；3, detection valve；4, detection connecting leg；5, interior
Hole；6, aperture；7, pressure release connecting leg；8, relief valve.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, but the invention is not limited in that these are real
Execute example.
From Fig. 1 and Fig. 2, a kind of blind plate device being applicable to block pipeline with pressure mouth of the present invention
By main body be the pipeline flange with closure match plectane 1, be arranged at endoporus plectane 1 within 5 and
Aperture 6, it is connected to the relief valve 8 of endoporus 5 one end and is connected to the manual detection of endoporus 5 other end
Valve 3 and Pressure gauge 2 are constituted.Wherein, described endoporus 5 runs through along the radial direction of plectane 1 is left and right
Arranging, in present embodiment, the centrage that the centrage of described endoporus 5 is axial with plectane 1 intersects,
Endoporus 5 is made to be in left and right horizontally set in the geometric center of plectane 1,；Described aperture 6 is along plectane
The axial direction of 1 is arranged, and on the opening-like end face being placed in plectane 1 of the one end of this aperture 6, it is another
One end is connected with endoporus 5, and in the present embodiment, aperture 6 is upper and lower is vertically arranged at plectane 1
Central axial on, the opening of its upper end is placed in plectane 1 end face in the heart, the port of its lower end
Extend on endoporus 5 and coupled logical；As further limiting, the diameter of aperture 6 is less than interior
The diameter in hole 5, more convenient Pressure gauge, the installation of relief valve.
In FIG, relief valve 8 is sealedly attached on the left side port of endoporus 5 by pressure release connecting leg 7,
Pressure gauge 2 and manually detection valve 3 are turned left from the right side by detection connecting leg 4 and are sealedly attached to endoporus 5 successively
Right side port on, described pressure release connecting leg 7 all uses the mode welded of sealing to carry out with detection connecting leg 4
Connect, thus possess and have better seal and more preferable anti-corrosive properties.It is to say, possess good
The connected mode of sealing and anti-corrosive properties can also use according to demand, is not limited in using welding
Seal a kind of mode.
Described endoporus 5 diameter is less than the 1/2 of plectane 1 thickness, as further preferred version, described
Endoporus 5 corresponds respectively to hole wall and the end face of plectane 2, the bottom surface in the end face of plectane 1, direction, bottom surface
Between minimum range more than 3mm, it is ensured that use intensity.
A kind of blind plate device work process being applicable to block pipeline with pressure mouth of the present invention, examines at needs
On the equipment repaiied, successively through closing medium upstream and downstream hands valve, opening relief valve and carry out
Carry out after pressure release, pressure release nitrogen (or steam) purge and purge qualified after at medium upstream and downstream valve
Install the blind plate device of the present invention additional.
Remove blind plate device after maintenance, open whether Pressure gauge 2 confirms between plectane 1 and valve
There is pressure energy, there is following two situation:
If. do not exist pressure can (or for can pressure energy in safe operating range), directly tear open
Except blind plate；
If. there is pressure energy (the pressure energy being in dangerous opereating specification), can be by letting out
Pressure valve 8 carries out pressure release, removes blind plate after unsnatching pressure.
Certainly, the most simply combine accompanying drawing and the preferred embodiments of the disclosure be described in detail,
Not limiting the practical range of the present invention with this, all principles under this invention, structure and structure are made
Equivalence change, all should be covered by protection scope of the present invention.
Claims (6)
1. it is applicable to block a blind plate device for pipeline with pressure mouth, including main body is and the pipe of closure
The plectane (1) that road flange matches, it is characterised in that:
The inside of described plectane (1) is respectively arranged with endoporus (5), aperture (6), described endoporus (5)
Radial direction along plectane (1) is left and right runs through setting, and the diameter of this endoporus (5) is less than plectane (1)
Thickness；Described aperture (6) is arranged along the axial direction of plectane (1), one end of this aperture (6)
On the opening-like end face being placed in plectane (1) in portion, its other end is connected with endoporus (5)；
Described endoporus (5) Single port connects Pressure gauge (2), another port by detection connecting leg (4)
Relief valve (8) is connected by pressure release connecting leg (7).
A kind of blind plate device being applicable to block pipeline with pressure mouth the most according to claim 1,
It is characterized in that: described endoporus (5) diameter is less than the 1/2 of plectane (1) thickness.
A kind of blind plate device being applicable to block pipeline with pressure mouth the most according to claim 2,
It is characterized in that: described endoporus (5) corresponds respectively to the end face of plectane (1), the hole in direction, bottom surface
Minimum range between wall and the end face of plectane (2), bottom surface is more than 3mm.
A kind of blind plate device being applicable to block pipeline with pressure mouth the most according to claim 1,
It is characterized in that: the centrage of described endoporus (5) centrage axial with plectane (1) intersects.
A kind of blind plate device being applicable to block pipeline with pressure mouth the most according to claim 1,
It is characterized in that: the two-port of described endoporus (5) respectively with detection connecting leg (4), pressure release connecting leg (6)
Between connected mode use seal welding.
6. block pipeline with pressure mouth according to a kind of being applicable to described in Claims 1 to 5 any one
Blind plate device, it is characterised in that: described detection connecting leg (4) is also associated with manually detecting valve (3),
This manually detect valve (3) be positioned at the corresponding side of endoporus (5) port and Pressure gauge (2) it
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435142.XA CN105840947A (en) | 2016-06-17 | 2016-06-17 | Blind plate device suitable for plugging opening of under-pressure pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610435142.XA CN105840947A (en) | 2016-06-17 | 2016-06-17 | Blind plate device suitable for plugging opening of under-pressure pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105840947A true CN105840947A (en) | 2016-08-10 |
Family
ID=56576860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610435142.XA Pending CN105840947A (en) | 2016-06-17 | 2016-06-17 | Blind plate device suitable for plugging opening of under-pressure pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105840947A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2261275A (en) * | 1991-11-06 | 1993-05-12 | Furmanite Engineering Limited | Blanking disc for pipes |
| DE20118759U1 (en) * | 2001-11-16 | 2002-02-28 | Tec Pumps & Valves Gmbh | Plastic plate |
| JP2002106782A (en) * | 2000-07-28 | 2002-04-10 | Buyou Gas Kk | Mechanism for sealing inner surface of pipe |
| CN202302550U (en) * | 2011-10-10 | 2012-07-04 | 中国石油化工股份有限公司 | Drainage type pipe flange stop plate for process treatment of pipeline |
| CN204126611U (en) * | 2014-08-27 | 2015-01-28 | 四川瑞昕机电科技有限公司 | The natural gas well head desanding device of sand amount can be judged |
| CN204346643U (en) * | 2014-12-23 | 2015-05-20 | 新疆大全新能源有限公司 | A kind of value pressure test equipment |
-
2016
- 2016-06-17 CN CN201610435142.XA patent/CN105840947A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2261275A (en) * | 1991-11-06 | 1993-05-12 | Furmanite Engineering Limited | Blanking disc for pipes |
| JP2002106782A (en) * | 2000-07-28 | 2002-04-10 | Buyou Gas Kk | Mechanism for sealing inner surface of pipe |
| DE20118759U1 (en) * | 2001-11-16 | 2002-02-28 | Tec Pumps & Valves Gmbh | Plastic plate |
| CN202302550U (en) * | 2011-10-10 | 2012-07-04 | 中国石油化工股份有限公司 | Drainage type pipe flange stop plate for process treatment of pipeline |
| CN204126611U (en) * | 2014-08-27 | 2015-01-28 | 四川瑞昕机电科技有限公司 | The natural gas well head desanding device of sand amount can be judged |
| CN204346643U (en) * | 2014-12-23 | 2015-05-20 | 新疆大全新能源有限公司 | A kind of value pressure test equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160810 |
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| WD01 | Invention patent application deemed withdrawn after publication |