CN208565889U - A kind of simple flange clamp - Google Patents

Abstract

The utility model discloses a kind of simple flange clamp, including chuck body, the chuck body is circularized by the fixture unit docking of N number of arc；The relationship of the number N and flange diameter L of the fixture unit are as follows: when L≤2 meter, N=2L；When 2 meters of L ﹥, N=6；The fixed structure of docking is equipped in the arc length direction two sides of the fixture unit；The fixed structure includes the otic placode for being located at each fixture unit lateral surface, and the otic placode is equipped with the bolt hole of connection；Annular convex platform is equipped in the fixture unit inner circumferential；The annular convex platform is radially equipped with the injecting hole of perforation.In the injecting hole, lateral surface is welded with is coaxially disposed with the matched nut of injection valve, the nut and the injecting hole.The flange clamp of the utility model substantially reduces the selection of raw steel and the requirement of machining tool, is conducive to the time for shortening leak stopping；Furthermore it installs at the scene also relatively easy.

Description

A kind of simple flange clamp

Technical field

The utility model relates to on-line pressure sealant clamp arts, more particularly to a kind of simple flange clamp.

Background technique

The various positions such as equipment, pipeline, valve in process units, when because being leaked caused by certain reason, leaking medium band Warm, with pressure and outside jet flow state.Leakage position: flange, equipment, the hole on pipeline, welding defect, nipple, Gland leakage etc..Leaking medium: water, water vapour, air, oxygen, nitrogen, coal gas, ammonia, liquefied gas, gasoline, diesel oil, kerosene, Heavy oil, lubricating oil, acid, alkali, esters, alcohols, benzene class, various heat carriers, various hydrocarbons, various chemical gas, liquid The leakage part of equal All Medias can go to eliminate with this technology.It can use the original closed cavity of leakage position, or letting out Leakage establishes a closed cavity on position, for the external thrust of medium system pressure, will have plasticity, curability is resistant to Leaking medium and the sealant of temperature inject and are full of enclosure space, blocking leakage hole and channel, and sealant is in certain item Under part, solidifies rapidly, a fixed new sealing structure is set up on leakage position, eliminates the leakage of medium.Do not stop Vehicle on-line pressure sealant technology is the sophisticated equipment maintenance technique that middle nineteen seventies grow up, when setting for process units and enterprise When the various positions leakages of standby, pipeline, it can not influenced in the case that production carries out not parking, band is warm, with pressure, rapid, pacifies Entirely, it reliably stops a leak.

The leakage of process units fluid media (medium) is repaired by not parking on-line pressure sealant technology, mostly uses agent injecting type Sealing Method, it is real Apply closure operation.This encapsulating method adaptive temperature is from -180 DEG C~800 DEG C, and pressure is from each under the conditions of -0.1MPa~35MPa The kind leakage sealed construction of fluid media (medium).But construction procedure is complicated, including fixture mounting and adjusting orientation, injecting operation it is noted that The coordination of fltting speed and sealant cures time carries out effect observation after completing injecting and after-teeming compresses.One of link Control it is improper just will affect sealing matter amount, this not only jeopardizes operating personnel and special equipment safe operation, is also unfavorable for resource section About and environmental protection.On-line pressure sealant flange clamp, is mounted in outside the flange components of leakage defect, contains leakage position and is formed Sealing cavity provides the metal component of strength and stiffness guarantee, is to complete the indispensable component part of on-line pressure sealant construction, with sealing Injecting, specific purpose tool and operating technology collectively constitute on-line pressure sealant construction blocking technology.

But current large-sized flange fixture is usually docked by two fixture units of semicircular arc；But due to folder It is very thick to have body thickness, and because chuck body diameter is big, can not be processed on general lathe, it is necessary to complete by heavy duty machine tools At；Such as flange diameter be 2.5 meters when, the lathe specification for manufacturing fixture need to be up to 2.5 meters or more；It routinely designs, manufacture is bound to Increase flange and block the time that fixture prepares, not meeting on-line pressure sealant technical application is the combat resilience requirement that leakage blocks.In addition, On-line pressure sealant operating environment is complicated, and space is limited, so operating personnel is generally 2-3 people.Half if it is 2.5 meters of single-piece diameter Circular clamp, installation difficulty are too big.

Utility model content

The utility model is directed to above-mentioned technical problem of the existing technology, provide it is a kind of structurally reasonable, it is easy to process The simple flange clamp of manufacture and installation.

The utility model is adopted the technical scheme that solve technical problem present in well-known technique:

A kind of simple flange clamp, including chuck body, the chuck body dock cyclization by the fixture unit of N number of arc Shape；The relationship of the number N and flange diameter L of the fixture unit are as follows: when L≤2 meter, N=2L；When 2 meters of L ﹥, N=6；

The fixed structure of docking is equipped in the arc length direction two sides of the fixture unit；The fixed structure includes being located at The otic placode of each fixture unit lateral surface, the otic placode are equipped with the bolt hole of connection；

Annular convex platform is equipped in the fixture unit inner circumferential；The annular convex platform is radially equipped with the injecting hole of perforation.

Further, in the injecting hole, lateral surface is welded with and the matched nut of injection valve, the nut and the injecting Hole coaxial arrangement.

Further, injecting hole there are two being set on each fixture unit.

Further, the diameter in the injecting hole is 4 millimeters.

Further, the bolt hole there are two being set side by side on each otic placode.

The utility model has the advantages and positive effects of:

A kind of simple flange clamp of the utility model, including the chuck body being made of N number of fixture unit；For diameter The flange clamp of biggish flange, the utility model substantially reduces the selection of raw steel and the requirement of machining tool, favorably In the time for shortening leak stopping；Furthermore it installs at the scene also relatively easy；In addition in the injecting hole, lateral surface is welded with With the matched nut of injection valve, to meet the requirement that injection valve and injecting hole need to be threadedly coupled.

Detailed description of the invention

Fig. 1 is the structure chart of the flange clamp of the preferred embodiment in the utility model；

Fig. 2 is the top view of Fig. 1；

Fig. 3 is the structure chart of the fixture unit of the preferred embodiment in the utility model；

Fig. 4 is the top view of Fig. 3；

Fig. 5 is the perspective view of the fixture unit of the preferred embodiment in the utility model；

Wherein, 1, fixture unit；1-1, injecting hole；2, fixed structure；2-2, otic placode；2-2a, bolt hole；3, convex annular Platform；4, nut.

Specific embodiment

For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and It is described in detail with the accompanying drawings as follows:

Fig. 1 is please referred to Fig. 5:

A kind of simple flange clamp, including chuck body, the chuck body are butted by the fixture unit 1 of N number of arc Annular；The fixed structure 2 of docking is equipped in the arc length direction two sides of the fixture unit 1；It is set in 1 inner circumferential of fixture unit There is annular convex platform 3；The annular convex platform 3 is radially equipped with the injecting hole 1-1 of perforation；For the ease of being carried out using common lathe Processing, the relationship of the number N and flange diameter L of the fixture unit 1 are as follows: when L≤2 meter, N=2L；When 2 meters of L ﹥, N=6；This Sample, the flange for being 2.5 meters for diameter: when flange clamp is made of 6 fixture units 1, production single clamp unit 1 needs to use Steel plate it is 0.7 meter wide, machining tool specification be 1.2 meters；When flange clamp is made of 2 fixture units 1, fixture unit is made 1 need to wide 1.25 meters of steel plate or more, machining tool specification need to be up to 2.5 meters or more.Therefore for the flange of major diameter, this patent Flange clamp the selection of raw steel and the requirement of machining tool are substantially reduced, be conducive to shorten leak stopping time； Furthermore it installs at the scene also relatively easy.

Preferably, the fixed structure 2 includes the otic placode 2-2 for being located at each 1 lateral surface of the fixture unit, the otic placode 2-2 is equipped with the bolt hole 2-2a of connection；Preferably, the bolt hole 2-2a there are two being set side by side on each otic placode 2-2.Institute It states fixed structure 2 and is also possible to the component for taking other modes to be docked to each fixture unit 1 together.

The usual injecting hole 1-1 requires to open up internal screw thread, needs to be threadedly coupled to meet injection valve with injecting hole 1-1 Requirement；Preferably, the injecting hole 1-1 of this patent be smooth inner hole, the injecting hole 1-1 lateral surface be welded with The matched nut 4 of injection valve, the nut 4 and injecting hole 1-1 are coaxially disposed；Preferably, each fixture unit 1 is equipped with Two injecting hole 1-1；Preferably, the diameter of the injecting hole 1-1 is 4 millimeters.

Preferably, the annular convex platform 3 and the fixture unit 1 are integrated by being welded to connect, the annular convex platform 3 with The inner circumferential junction of fixture unit 1 uses smooth arc transition.

Working principle:

When work, the annular convex platform 3 is embedded between the interface of a pair of of flange, the two sides of the annular convex platform 3 with The interface to flange fits closely, and the top surface of the annular convex platform 3 and the interface to flange enclose, and it is empty to constitute sealing Chamber；Special seal agent is pushed in sealing cavity with specific purpose tool by injecting hole 1-1 again, is pressed with leaking medium release is higher than The extruding force and leaking medium pressure balance of power, then can terminate leakage.

The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model Embodiment should not be considered as limiting the scope of the present invention.It is made according to the scope of application of this utility model equal Deng variation and improvement etc., should all still return within the patent covering scope of the utility model.

Claims (6)

1. a kind of simple flange clamp, including chuck body, the chuck body is butted by the fixture unit (1) of N number of arc Annular；It is characterized by: the relationship of the number N and flange diameter L of the fixture unit (1) are as follows: when L≤2 meter, N=2L；As L ﹥ 2 meters, N=6；

The fixed structure (2) of docking is equipped in the arc length direction two sides of the fixture unit (1)；Fixed structure (2) packet The otic placode (2-2) for being located at each fixture unit (1) lateral surface is included, the otic placode (2-2) is equipped with the bolt hole of connection (2-2a)；

Annular convex platform (3) are equipped in the fixture unit (1) inner circumferential；The annular convex platform (3) is radially equipped with the injecting of perforation Hole (1-1).

2. a kind of simple flange clamp as described in claim 1, it is characterised in that: welded in injecting hole (1-1) lateral surface It is connected to and is coaxially disposed with the matched nut of the injection valve (4), the nut (4) and the injecting hole (1-1).

3. a kind of simple flange clamp as described in claim 1, it is characterised in that: each fixture unit (1) is equipped with Two injecting holes (1-1).

4. a kind of simple flange clamp as claimed in claim 1 or 3, it is characterised in that: the diameter of the injecting hole (1-1) is 4 millimeters.

5. a kind of simple flange clamp as described in claim 1, it is characterised in that: the annular convex platform (3) and the fixture The inner circumferential junction of unit (1) uses smooth arc transition.

6. a kind of simple flange clamp as described in claim 1, it is characterised in that: be equipped with two on each otic placode (2-2) side by side A bolt hole (2-2a).