CN205978900U - Prevent that foreign matter from sneaking into flange seal special fixture of sealant - Google Patents

Abstract

The utility model discloses a prevent that foreign matter from sneaking into flange seal special fixture of sealant, including docking into cylindric a pair of anchor clamps body, every the anchor clamps body includes semi - cylindrical portion, be equipped with annular boss in the middle part of the interior week of semi - cylindrical portion annotate the agent hole along radially being equipped with on the annular boss, week be equipped with the annular groove in the axial both ends of semi - cylindrical portion, annular grooved underside annotates the agent hole along radially being equipped with. The utility model discloses the flange that can be suitable for special working condition leaks online leak sealing, has solved special working condition dielectric leakage effectively and has caused the sealant to seal bad problem.

Description

A kind of flange seal special fixture preventing foreign body to be mixed into sealant

Technical field

This utility model is related to a kind of on-line pressure sealant clamp structure form and unit construction device, prevents particularly to one kind Foreign body is mixed into the flange seal special fixture of sealant.

Background technology

The various position such as the equipment in process units, pipeline, valve, when causing leakage because of certain reason, leaking medium band Warm, with pressure and outside jet flow state.Leakage position：Hole on flange, equipment, pipeline, weld defect, nipple are filled out Material letter leakage etc..Leaking medium：Water, water vapour, air, oxygen, nitrogen, coal gas, ammonia, liquefied gas, gasoline, diesel oil, kerosene, weight Oil, lubricating oil, acid, alkali, esters, alcohols, benzene class, various heat carrier, various Hydrocarbon, various chemical gas, liquid etc. The leakage part of All Media can go to eliminate with this technology.Technology implementation process can be using the original confined air of leakage position Chamber, or the cavity of a closing is set up on leakage position, with the external thrust more than medium system pressure, sealant injection And it is full of closing space, blocking leakage defect and passage, thus the new sealing structure of is set up on leakage position, disappear Leakage except medium.Not parking on-line pressure sealant technology is the sophisticated equipment maintenance technique that middle nineteen seventies grow up, when During the leakage of the equipment of process units and enterprise, pipeline various position, can not affect in the case that production carries out not parking, Band warm, with pressure, rapid, reliably and securely stop a leak.

The leakage of process units fluid media (medium) is repaired by not parking on-line pressure sealant technology, adopts agent injecting type Sealing Method more, real Apply closure operation., from -180 DEG C～800 DEG C, pressure is each under the conditions of -0.1MPa～35MPa for this encapsulating method adaptive temperature Plant the leakage sealed construction of fluid media (medium).But construction procedure is complicated, including fixture mounting and adjusting orientation, injecting operation it is noted that Fltting speed and the coordination of sealant cures time, carry out effect observation and after-teeming compression after completing injecting.One of link Control is improper will to be affected to block quality, and this not only jeopardizes operating personnel and special equipment safe operation, is also unfavorable for resource section About and environmental conservation.

On-line pressure sealant special fixture, has been mounted in outside leakage defect part, contains leakage position and forms sealing cavity, carries The hardware ensureing for strength and stiffness, is to complete the indispensable crucial ingredient of on-line pressure sealant construction, with injecting sealant, specially Constitute on-line pressure sealant technology with instrument and operating technology overall.

The strong adhesion of special operation condition conditional systems pipeline coupling flange sealing face leakage, such as residual oil, heavy diesel fuel, conduction oil etc. Leakage closure is implemented at the position of the easy frosting of the dielectric leakage such as medium and liquefied petroleum gas, liquefied natural gas, liquefied ammonia.Injecting operation because Medium is mixed into sealant layer and is difficult to set up even compact, and effect can not be steady in a long-term.Therefore, become industry not solve for many years Knotty problem certainly.

Content of the invention

This utility model provides one kind to prevent foreign body to be mixed into sealant for solving technical problem present in known technology Flange seal special fixture.

This utility model is adopted the technical scheme that by solving technical problem present in known technology：One kind prevents different Thing is mixed into the flange seal special fixture of sealant, and including a pair of chuck body being butted into cylindrical shape, each described fixture is originally Body includes semi-cylindrical shaped portion, being provided with annular boss, in the middle part of the inner circumferential in described semi-cylindrical shaped portion on described annular boss radially It is provided with injecting hole；The axial two ends inner circumferential in described semi-cylindrical shaped portion is provided with annular groove；Described annular groove bottom surface radially sets There is injecting hole.

This utility model can also adopt the following technical scheme that：

Also include a pair of isolation plate being plugged on the major leak point both sides of flange；The two ends of described isolation plate are arc Shape, its arc top is matched with the inner circumferential of the described annular boss after installation.

It is provided with the otic placode with bolt hole in the radial direction left and right sides in described semi-cylindrical shaped portion.

This utility model has the advantages and positive effects that：For avoiding leaking medium to sealant layer in newly-built structure Impact, stops injecting separate cavities using setting up border, in the case of intermediate cavity drain, carries out separate cavities injecting, so can have Effect avoids the impact to sealant layer for the leaking medium.The flange leakage on-line pressure sealant of applicable special operation condition condition.Effectively solve Special operation condition conditioned media of having determined leakage causes the knotty problem of sealant poor sealing.Can ensure that sealing effectiveness is steady in a long-term, Avoid leaking again.

Brief description

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the A-A sectional view of Fig. 1；

In figure：1st, chuck body；2nd, annular groove injecting hole；3rd, otic placode；4th, otic placode bolt hole；5th, annular groove；6th, ring Shape boss；7th, isolate plate；8th, annular boss injecting hole.

Specific embodiment

For content of the invention of the present utility model, feature and effect can be further appreciated that, hereby enumerate following examples, and coordinate Accompanying drawing describes in detail as follows：

Refer to Fig. 1～Fig. 2, a kind of flange seal special fixture preventing foreign body to be mixed into sealant, including being butted into circle A pair of chuck body 1 of tubular, each described chuck body 1 includes semi-cylindrical shaped portion, in the middle part of the inner circumferential in described semi-cylindrical shaped portion It is provided with annular boss 6, described annular boss 6 is radially provided with injecting hole；I.e. annular boss injecting hole 8 shown in Fig. 2, institute The axial two ends inner circumferential stating semi-cylindrical shaped portion is provided with annular groove 5；Described annular groove 5 bottom surface is radially provided with injecting hole, please Annular groove 5 injecting hole 2 shown in Figure 1.After chuck body 1 is arranged on flange, described annular groove 5 and flange periphery Between formed separate cavities, make the foreign matters such as the medium of leakage enter separate cavities；By annular groove injecting hole 2, to separate cavities Injecting, realizes the closure of flange leakage.Described annular boss 6 is located at the gap location of a pair of leakage flange interface, described annular Boss 6 outer rim and a pair of flange interface surround intermediate cavity, and leakage point also is located at intermediate cavity.

Further, may also include a pair of isolation plate 7 of the major leak point both sides being plugged on flange；Described isolation plate 7 two ends can be arc, and its arc top is matched with the inner circumferential of the described annular boss 6 after installation.

Install and fasten for making chuck body 1 dock split, can be provided with the radial direction left and right sides in described semi-cylindrical shaped portion Otic placode 3 with bolt hole.By fastening the bolt that otic placode bolt hole 4 passes through, you can install a pair of chuck body 1 and be fastened on Together.

Using method of the present utility model and operation principle：

Before chuck body 1 docking split is installed, first the major leak point both sides gap location in flange inserts isolation respectively and inserts Plate 7, each one piece of left and right.

Then according to GB/T 26467-2011《Bearing device on-line pressure sealant technical specification》7.3.1.2 pertinent regulations will Chuck body 1, quantity totally 2, fasten and cover leakage flange, ring adjusts orientation, need in major leak region to arrange injecting hole 2 (injection valve has been installed), and 1 must not be less than, the then otic placode bolt hole 4 on fastening clips body 1, quantity 4, fixture is pacified Install complete.

Fixture install after, the leading injecting of separate cavities in the case of intermediate cavity drain, after completing separate cavities injecting, then in Between chamber injecting.Intermediate cavity has been isolated plate 7 and has been separated into leakage region and deviates from leakage region two parts before this.Carried on the back first From leakage region injecting, is purged by injection valve access low-pressure steam before injection, then again row injecting until filling up compacting； Before leakage region injecting, carried out at leakage prevention at regional extent inner flange link bolt hole by cushioning or nut injecting method Reason, after using above preventive measure, injecting operation should be noted the coordination of fltting speed and sealant cures time, it is to avoid will be close Envelope agent is injected into leaking medium system.

Embodiment described above is merely to illustrate technological thought of the present utility model and feature, its object is to make ability Technical staff in domain is it will be appreciated that content of the present utility model according to this enforcement are it is impossible to only to limit this practicality with the present embodiment New the scope of the claims, equal change or modification that is, the spirit disclosed in all this utility model is made, still fall new in this practicality In the scope of the claims of type.

Claims (3)

1. a kind of flange seal special fixture preventing foreign body to be mixed into sealant is it is characterised in that include being butted into cylindrical shape A pair of chuck body, each described chuck body includes semi-cylindrical shaped portion, being provided with annular in the middle part of the inner circumferential in described semi-cylindrical shaped portion Boss, is radially provided with injecting hole on described annular boss；It is recessed that the axial two ends inner circumferential in described semi-cylindrical shaped portion is provided with annular Groove；Described annular groove bottom surface is radially provided with injecting hole.

2. the flange seal special fixture preventing foreign body to be mixed into sealant according to claim 1 is it is characterised in that also wrap Include a pair of isolation plate of the major leak point both sides being plugged on flange；Described isolation plate two ends be arc, its arc top with The inner circumferential of the described annular boss after installation matches.

3. the flange seal special fixture preventing foreign body to be mixed into sealant according to claim 1 is it is characterised in that in institute The radial direction left and right sides stating semi-cylindrical shaped portion is provided with the otic placode with bolt hole.