CN2138237Y - Special hoop used for blinding on pressure liquid pipe - Google Patents

Abstract

The utility model discloses a special appliance with blinding. The throat hoop comprises a double thread pole type and a tightening bolt type, respectively composed of a metal tightening strap and a tightening mechanism, and provided with a sealing glue lining pad in the metal tightening strap. A welded nut of the connection point of injecting glue is arranged on the outer margin surface of the metal tightening strap, used in the leakage between the surface of pipelines and the joint of flanges. The leakage on the surface of the pipeline can tighten the throat hoop, and blinding can be realized by the sealing glue lining pad; when the leakage at the place of the flanges can tighten the throat hoop, and the glue is injected into the cavity among the flanges and solidified, the blinding can be realized. The utility model has the characteristics of simple structure, reliable performance, and convenient operation.

Description

Special hoop used for blinding on pressure liquid pipe

The utensil that the leak stopping of the utility model metal conduit is used, it relates to the special-purpose larynx cuff structure of this kind.

Make fastening usefulness when the larynx hoop is flexible pipe and hard tube socket, it can prevent that the pipeline inner fluid from leaking.The mentioned utensil of this programme be shape if like the larynx hoop, but the usefulness of leak stopping when being used in pipeline with pressure and leaking.The inventor once provided a kind of universal fixture of pressure sealing when leaking at the piping flange place in CN90221591.4 " universal fixture of fluid line pressure sealing " patent, it is made of a plurality of chain links and tensioning mechanism, can inject sealer from chain link during use, can block leakage after solidifying, it has characteristics easy to operate, that the high tightening force of intensity reaches reliable performance greatly, but it exists the high problem of complex structure cost.

The purpose of this utility model is to provide a kind of utensil of easy to operate fluid line pressure sealing simple in structure, and it can make tandem product to adapt to the needs of different size pipeline.

By as above design, the special-purpose larynx hoop of fluid line pressure sealing provided by the utility model is made up of metal puller strap and tensioning mechanism, its concrete feature is: its metal taut band is to be made of generouser resistant material, its tensioning mechanism is the structure that adopts the mariages post to match with screw thread nest on the metal puller strap, or the structure that matches with horizontal bar that metal puller strap two ends hinge of employing turnbuckle; Also serve as a contrast liner to make by sealer in the inside of metal puller strap.

Special-purpose larynx hoop in this programme has two kinds of patterns, the larynx hoop of mariages column type wherein, nearly end place of metal tape at it is connecting two shapes, the silk post that size and pitch are all identical, metal tape in the local bottom of anchoring filament post also continues to stretch forward one section, at the other end of metal tape screw thread nest with the threads engaged on two post surfaces is arranged, the gap that disconnection is arranged at two intermediate portions of arranging the screw thread nests of metal tape, on the outer edge surface of metal tape, leave the interface that injecting glue is used, the seal rubber pad that is lined with at the metal tape inner edge is a not exclusively ring, its cross section is the rectangular section tube of an open-ended, the outside of metal tape is stayed on the limit of its open-ended, and the Inner Dimension of this open-ended rectangular section tube matches with metal tape.Upwards overturning in the two ends of the metal tape of the turnbuckle type larynx hoop in this programme, also the replication riveting is good, the space has been dug in centre at metal tape replication place, at two replication places two horizontal bars are housed, one of them has through hole, another has tapped hole, one bolt with the level is housed between two horizontal bars, the diameter of its bolt step bottom is slightly less than the through hole of horizontal bar, diameter is greater than through hole on the step top, screw thread on the bolt matches with the screw of another horizontal bar, at the joint area of metal tape material with metal tape is arranged, the metal transfer liner that width dimensions is identical, an end and the metal tape of this liner are fixedly connected, and are lined with a seal rubber pad identical with aforementioned structure in metal tape.But the special-purpose larynx hoop of two kinds of patterns of this programme is a bolt injecting glue of adapted joint also in use, it is the conglobate entity in flat rear portion, a place ahead, at its flat section proximal head place one step through-hole is arranged, its hole diameter matches with the external diameter of the bolt thread of mounting point, the big bore portion of step hole is slightly larger than the external diameter of bolt, the inner small and outside big blind hole of one stepped shape is arranged on the length of said joint direction, its aperture communicates with the macropore of the step hole of aforesaid flat section, there is internal thread at its outside macropore place, and this internal thread is for connecting usefulness with the injecting glue instrument.

Adopt this programme can embody following superiority: 1. to compare it and simplify the structure with the universal fixture of aforesaid pressure sealing; 2. this programme has adopted the mariages columniation structure, has guaranteed enough tightening forces; 3. adopt the bigger pulling force that is combined with of the structure of turnbuckle than silk male screw and puller strap screw thread nest; 4. the seal rubber pad that puts is arranged on the metal puller strap, make metal tape energy and the close combination of metallic conduit, easy to use, also guaranteed the performance that seals; 5. the structure of this programme can make the product of seriation, stops up the urgent need of leaking under the different situations to adapt to.

Fig. 1 is the structural drawing of the special-purpose larynx hoop of this programme mariages column type;

Fig. 2 is the plan view of Fig. 1;

Fig. 3 is the sectional drawing of caulking gum liner;

Fig. 4 is the structural drawing of the special-purpose larynx hoop of this programme turnbuckle type;

Fig. 5 is the plan view of books;

Fig. 6 is the special-purpose larynx hoop of a this programme scheme of installation in use.

Structure and use condition below in conjunction with description of drawings this programme embodiment.The larynx hoop of mariages post is to be fixed on the metal puller strap (2) by silk post (1), inner edge at steel band is equipped with sealer liner (3), also be welded with the nut (4) of the point of several injection sealers connections in metal puller strap outside, on the metal tape below the hole of nut, leave through hole, the inside of sealer liner is complete, gets through the hole on the seal rubber pad when needing injecting glue again; The larynx hoop of turnbuckle type is by turnbuckle (5), two little horizontal bars (6), and the metal puller strap (7) that the riveting of double end buckle is good, the caulking gum liner also is equipped with in its inside, leaves the nut of the injection sealer interface of welding on the outside.This pattern can be with a cover turnbuckle tension, also can adopt the structure of two cover turnbuckles when specification is big.

The special-purpose larynx hoop of this programme can be used on the leakage point of pipeline cylndrical surface, also can be used in the caused leakage of pad between flange.With the topped aperture of living to leak of larynx hoop, the larynx hoop is tightened when occur leaking on the pipeline, because of the sealer liner of inside is the good material of elasticity, it can block leakage under enough tightening forces.If leak at the flange place, with the topped firmly outer edge surface of two flanges of larynx hoop, seal rubber pad and flange outer edge surface are combined closely, inject the sealer of high pressure in the cavity that when the pressure of pipeline is big, can adopt the injection coupling nut (4) on bolt injecting glue joint (8) or the larynx hoop outer edge surface between two flanges, to form, can block leakage after waiting to solidify with larynx hoop inner face.

The metal puller strap of this programme larynx hoop adopts 1Cr18Ni9Ti, to guarantee its corrosion resistant performance.Wherein the larynx hoop of mariages column type can make within the section of ∮ 38-∮ 130, and the larynx hoop of turnbuckle type can be used in the section of ∮ 90-∮ 245, with ∮ 140 with the boundary, in the small size section, overlap turnbuckle with one, specification adopts two to overlap turnbuckles greatly, it is convenient to operate like this, the preproduction of this programme is tested under the situation that 260 ℃ of high pressure steams leak, pressure was 2.5MPa at that time, flange outer diameter ∮ 270, the operating time only is 34 minutes, it is good that injecting glue solidifies the back sealing effect, realized not shut-down operation, and safe and reliable to operation.

Claims (4)

1, a kind of special-purpose larynx hoop of fluid line pressure sealing, it is made up of metal puller strap and tension machine mechanism, it is characterized in that its metal puller strap (2) is to be made by generouser corrosion-resistant material; Its tensioning mechanism is to be matched with screw thread nest on the metal tape by mariages post (1), or the horizontal bar of with turnbuckle (5) and metal tape double end hinge (6) matches; Also serve as a contrast liner (3) to make by sealer in metal tape inside.

2, according to the described special-purpose larynx hoop of claim 1, the nearly end place of metal puller strap that it is characterized in that its mariages column type larynx hoop is connecting two shapes, size, and all identical silk post (1) of pitch, metal tape in the local bottom of anchoring filament post also continues to stretch forward one section, at the other end of metal tape nest with the screw thread of the threads engaged on two post surfaces is arranged, there is a gap that disconnects at metal tape place at two row's screw thread nest intermediate portions, and leaves the interface (4) of injecting glue on the outer edge surface of metal tape; The seal rubber pad that is lined with in metal tape (3) is incomplete ring-type, and its cross section is the rectangular section tube of an open-ended, and the outside of metal tape is stayed on the limit of its open-ended, and the Inner Dimension of the rectangular section tube of this open-ended matches with metal tape.

3, according to the described special-purpose larynx hoop of claim 1, the two ends of metal tape (7) that it is characterized in that its turnbuckle type larynx hoop are upwards turned over and oppositely the replication riveting is good, the space has been dug in centre at metal tape replication place, at two replication places two horizontal bars (6) are housed, one of them has through hole, another has tapped hole, the lower diameter that one its step of bolt with the level (5) is housed between two horizontal bars is slightly less than the through hole of horizontal bar, the step upper part diameter is greater than through hole, the screw thread of bolt matches with the tapped hole of another horizontal bar, joint area at metal tape has a metal transfer liner identical with strip material and width dimensions, one end and the metal tape of this liner are fixedly connected, and are lined with a seal rubber pad identical with aforesaid structure in metal tape.

4, according to the described special-purpose larynx hoop of claim 1, a but bolt injecting glue of adapted joint (8) also when the larynx hoop that it is characterized in that mariages column type or turnbuckle type uses, it is that a place ahead is the conglobate entity in flat rear portion, there is a step through-hole at flat section proximal head place, its hole diameter matches with the external diameter of the bolt thread of mounting point, the big bore portion of step hole is slightly larger than the external diameter of bolt, the inner small and outside big blind hole of one stepped shape is arranged on the length of said joint direction, its aperture communicates with the macropore of the step hole of aforesaid flat section, and the instrument of the promising injecting glue in macropore place that it is outside connects the internal thread of usefulness.

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