CN100420895C - Dual openable stopper for high-temperature and pressure pipeline blocking construction - Google Patents
Dual openable stopper for high-temperature and pressure pipeline blocking construction Download PDFInfo
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- CN100420895C CN100420895C CNB2006100132665A CN200610013266A CN100420895C CN 100420895 C CN100420895 C CN 100420895C CN B2006100132665 A CNB2006100132665 A CN B2006100132665A CN 200610013266 A CN200610013266 A CN 200610013266A CN 100420895 C CN100420895 C CN 100420895C
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- circular arc
- pipeline
- arc plate
- pressure pipeline
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Abstract
The present invention discloses a dual open type plugging head for high-temperature and high-pressure pipeline plugging construction, which comprises plugging heads and a driving part. The present invention is characterized in that the plugging heads are two strip-type circular arc plates in opposite convex arrangement; the driving part is composed of a screw rod of which both ends are provided with reverse screw threads, and two tapered lock nuts of which the top ends are opposite; the two tapered lock nuts are screwed one the upper side; through a longitudinal oblique reinforcement fixed in the inner side of the strip-shaped circular arc plate, and the external side of the oblique reinforcement, the plugging head and the driving part are in T-shaped grooved rail sliding connection with the tapered lock nuts. The dual open type plugging head and a frame are two semicircles; when the plugging head is expanded, the diameter of the plugging head is the same as that of the opening of pipeline and the frame has no plastic deformation, so rigid seal can endure high pressure in pipeline and the plugging head has large open and close quantity. According to the requirements of the pressure, the temperature and the medium in construction pipelines, the material of the surface sealing layer can be replaced to be rubber, plumbum, aluminium, copper, gather urine, etc.; the sealing performance of the opening of the pipeline and the expansive force directly acts on the sealing layer.
Description
[technical field]
The present invention relates to the special-purpose member of conveyance conduit shutoff construction technologies, particularly high pressure such as oil, chemical industry, rock gas, high-temperature pipe shutoff construction, a kind of two-opening type block head.
[background technique]
In the prior art, generally be to adopt single spending strut cartridge type block head to the pipeline of different mediums such as the oil in using, chemical industry, rock gas in the shutoff construction of stopping transportation pipeline not.This moment plug with many struts with screw is connected, rotate by leading screw and equally drive the skeleton spreading to umbrella, push rubber sealant and pipeline formation sealing state.This structure exist some shortcomings as: produce plastic deformation because of many struts must need skeleton when the spreading, and the thickness and the intensity of the plastic deformation that needs restriction skeleton; Sealing layer can only be selected sheet rubber for use, and adopts the needed tension of soft metal sealing layer greater than sheet rubber, can't finish by the intensity restriction of strut and thin-walled skeleton; Sheet rubber sealing can not adapt to shutoff needs of high pressure, high temperature and different medium, and sheet rubber Chang Yin is pushed by framework local and breakage does not have the sealing layer effect; Strut can not be satisfied with the needed support force of high pressure pipe line shutoff being subjected to also can to produce resiliently deformable under the situation of manifold pressure.
[summary of the invention]
Purpose of the present invention is intended to for overcoming the deficiencies in the prior art, a kind of stopper for high-temperature and pressure pipeline construction two-opening type block head is provided, this two-opening type block head can conveniently enter the working position, can be after opening with the closed at both ends of construction object pipeline, and have satisfied intensity and sealing effect.
The present invention is that to address the above problem the scheme that is adopted be a kind of stopper for high-temperature and pressure pipeline of design construction two-opening type block head.It comprises plug and transmission part, it is characterized in that described plug is the bar shaped circular arc plate of two opposed evaginations; Described transmission part is made up of the silk locknut with the relative taper in superincumbent two tops that spins the leading screw of reverse thread two ends; "T"-shaped rail by the outside of the vertical diagonal bar on the bar shaped circular arc plate between described plug and the transmission part cooperates the "T"-shaped groove on silk locknut surface with taper to be slidingly connected.
Stopper for high-temperature and pressure pipeline construction of the present invention is two semicircles with two-opening type block head, skeleton, and its diameter is identical with pipeline tapping place diameter during spreading, and skeleton does not have plastic deformation, and the rigidity sealing can be born the pipeline inner high voltage, and the opening and closing amount is big; According to the requirement of construction manifold pressure, temperature and medium, can also select to change the face seal layer material as: rubber, lead, aluminium, copper, poly-urine etc., make with the sealability of pipeline tapping place better, make tension directly act on sealing layer.
The present invention satisfies the opening and closing shutoff requirement of pipeline tapping place with two evolution formula block heads and since not the block head of open mode less than opening diameter 20%, so though the bobbin cutter at pipeline tapping place edge formation orifice, can the scratch sealing layer yet.The two-opening type block head also can increase skeleton thickness according to pipeline pressure when the high pressure shutoff simultaneously, improves skeleton self intensity.Can realize cartridge type shutoff needed sealing characteristics under the state of high temperature, high pressure.
Two-opening type block head of the present invention is skeleton with the carbon constructional quality steel, uses and can select the different sealing layer under condition of different temperatures.When with soft aluminium flake as sealing layer, according to pipeline pressure difference, caliber difference and the intensity of design framework, but pressure-bearing 10Mpa, 660 ℃ of aluminium fusing points, hardness are HB25, temperature can not produce softening below 250 ℃, and the cutter mark that the hardness of aluminium is produced when having replenished the pipeline tapping of bobbin cutter reaches seal action.
Parallel-plate on the leading screw plays the relative parallel effect of two skeletons, makes block head accurately arrive the pipeline calculating location.
[description of drawings]
Fig. 1 two-opening type block head closes up the state left view;
Fig. 2 two-opening type block head closes up the state plan view;
Fig. 3 two-opening type block head open mode left view;
Fig. 4 two-opening type block head open mode plan view;
Fig. 5 two-opening type block head uses scheme of installation.
Among the figure: 1-supporting frame 2-positioning block 3-sealing layer 4-is to the vertical diagonal bar 8-of silk locknut 5-bearing pin 6-leading screw 7-parallel plate 9-bar shaped circular arc plate 10-four-way spare 11-block head 12-running shaft.
Be described in detail with reference to accompanying drawing below in conjunction with embodiments of the invention.
[embodiment]
The two-opening type block head is used in the stopper for high-temperature and pressure pipeline construction, is made up of plug and transmission part etc.Shown in Fig. 1-4, wherein:
Plug is the bar shaped circular arc plate 9 of two opposed evaginations, and at the vertical diagonal bar 7 of the center fixation of bar shaped circular arc plate inboard, the diagonal bar cross section is "T"-shaped, and integral body is isosceles triangle.And the both sides in bar shaped circular arc plate inboard also are fixed with a longitudinal bracing frame 1 respectively, and supporting frame also is isosceles triangle.The bar shaped circular arc plate is skeleton with the carbon constructional quality steel, is fixed with the sealing layer 3 of materials such as one deck rubber, aluminium, lead, copper or poly-urine at the outer surface of skeleton.
Transmission part is by the leading screw 6 of reverse thread and superincumbent two tapers that spin silk locknut 4 being made of."T"-shaped rail by the outside of the vertical diagonal bar on the bar shaped circular arc plate between plug and the transmission part cooperates the "T"-shaped groove on silk locknut surface with taper to be slidingly connected.Be to guarantee bar shaped circular arc plate shifting balance, in the center fixation of leading screw a ring-type parallel plate 8 is arranged, the sheet wing of parallel plate then inserts in the top slot of the vertical diagonal bar of triangle.Leading screw is in the opposite end of manipulatable end, and promptly opposite side is equipped with a positioning block 2.
High pressure, hot operation pipeline are changed certain pipe string or are changed valve and need carry out the pipe plugging construction under stop status not, at first connect bypass, and walking around needs the construction pipeline section to guarantee that pipeline internal medium normally moves.Packet mode four-way spare 10 of welding (with reference to shown in Figure 5) on pressure piping connects the gate valve perforator on the four-way spare then, leaves a hole greater than caliber with the bobbin cutter, makes pipeline form two curved ends.Return the bobbin cutter then, closing gate valve changes the shutoff facility, two-opening type block head 11 is sent in the hole that pipeline leaves, and at this moment the two-opening type block head is in closed state (Fig. 1-2 shows), and the outside dimension of block head can be less than aperture 20%, make it enter pipeline smoothly, sealing layer can be by scratch like this.The two-opening type block head running shaft 12 (change leading screw with running shaft by bearing pin 5 be connected) of back on the rotating threaded shaft that put in place make two screw moved to the centre under the leading screw effect, thereby the promotion diagonal bar makes skeleton to the both sides spreading, reaches the shutoff purpose.At this moment the pipeline internal medium stopping transportation can be changed the construction of gate valve or pipeline operations.Counterrotating leading screw after the operation, the skeleton closure withdraws from it smoothly, and pipeline internal medium recovers normal and carries.
Claims (5)
1. the two-opening type block head is used in a stopper for high-temperature and pressure pipeline construction, comprises plug and transmission part, it is characterized in that described plug is the bar shaped circular arc plate of two opposed evaginations; Described transmission part is made up of the silk locknut with the relative taper in superincumbent two tops that spins the leading screw of reverse thread two ends; "T"-shaped rail by the outside of the vertical diagonal bar on the bar shaped circular arc plate between described plug and the transmission part cooperates the "T"-shaped groove on silk locknut surface with taper to be slidingly connected.
2. use the two-opening type block head according to the described stopper for high-temperature and pressure pipeline construction of claim 1, it is characterized in that described plug is the vertical diagonal bar of center fixation in bar shaped circular arc plate inboard, the diagonal bar cross section is "T"-shaped, and integral body is isosceles triangle; And the both sides in bar shaped circular arc plate inboard also are fixed with a longitudinal bracing frame respectively, and supporting frame also is isosceles triangle.
3. use the two-opening type block head according to claim 1 or the construction of 2 described stopper for high-temperature and pressure pipeline, it is characterized in that described bar shaped circular arc plate is skeleton with the structural carbon steel, be fixed with one deck rubber, aluminium, lead, copper or the poly-sealing layer of urinating at the outer surface of skeleton.
4. according to claim 1 or 2 described stopper for high-temperature and pressure pipeline construction two-opening type block heads, it is characterized in that for guaranteeing bar shaped circular arc plate shifting balance, center fixation at leading screw has a ring-type parallel plate, and the sheet wing of parallel plate then inserts in the top slot of the vertical diagonal bar of triangle.
5. use the two-opening type block head according to the described stopper for high-temperature and pressure pipeline construction of claim 4, it is characterized in that described leading screw is equipped with a positioning block in the opposite end of manipulatable end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100132665A CN100420895C (en) | 2006-03-10 | 2006-03-10 | Dual openable stopper for high-temperature and pressure pipeline blocking construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100132665A CN100420895C (en) | 2006-03-10 | 2006-03-10 | Dual openable stopper for high-temperature and pressure pipeline blocking construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1818451A CN1818451A (en) | 2006-08-16 |
| CN100420895C true CN100420895C (en) | 2008-09-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100132665A Expired - Fee Related CN100420895C (en) | 2006-03-10 | 2006-03-10 | Dual openable stopper for high-temperature and pressure pipeline blocking construction |
Country Status (1)
| Country | Link |
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| CN (1) | CN100420895C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106641720A (en) * | 2016-12-30 | 2017-05-10 | 江阴东联高压管件有限公司 | Environment-friendly and energy-saving factory prefabricated high-pressure pipe system |
| CN106704763B (en) * | 2017-03-23 | 2019-06-04 | 安徽恒生科技发展集团有限公司 | Lined pipeline patching device |
| CN108591669A (en) * | 2018-06-21 | 2018-09-28 | 上海煤气第二管线工程有限公司 | A kind of gas pipeline plugging device and plugging construction method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2145304Y (en) * | 1992-06-25 | 1993-11-03 | 大庆石油管理局油田建设公司 | Plugging apparatus for pipe end |
| CN2152133Y (en) * | 1993-01-13 | 1994-01-05 | 张良永 | Pipe instant stopper |
| CN2247266Y (en) * | 1996-04-12 | 1997-02-12 | 辽河石油勘探局勘察设计研究院 | Pressured cylindrical type pipe blocking machine with stopping transportation |
| CN2322021Y (en) * | 1998-03-14 | 1999-06-02 | 江西长林机械厂特种设备公司 | Pipeline leakage repairing device without stopping transferring |
| CN2401768Y (en) * | 1999-10-29 | 2000-10-18 | 靳卫新 | Butt clamped expansion water flow stop |
-
2006
- 2006-03-10 CN CNB2006100132665A patent/CN100420895C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2145304Y (en) * | 1992-06-25 | 1993-11-03 | 大庆石油管理局油田建设公司 | Plugging apparatus for pipe end |
| CN2152133Y (en) * | 1993-01-13 | 1994-01-05 | 张良永 | Pipe instant stopper |
| CN2247266Y (en) * | 1996-04-12 | 1997-02-12 | 辽河石油勘探局勘察设计研究院 | Pressured cylindrical type pipe blocking machine with stopping transportation |
| CN2322021Y (en) * | 1998-03-14 | 1999-06-02 | 江西长林机械厂特种设备公司 | Pipeline leakage repairing device without stopping transferring |
| CN2401768Y (en) * | 1999-10-29 | 2000-10-18 | 靳卫新 | Butt clamped expansion water flow stop |
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| Publication number | Publication date |
|---|---|
| CN1818451A (en) | 2006-08-16 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080924 Termination date: 20210310 |