CN208778693U - Corrugated metal Composition spacer is covered in a kind of double-contracting - Google Patents

Abstract

The utility model discloses a kind of double-contractings to cover corrugated metal Composition spacer, belong to pipe fitting leakproof field, it is intended to provide a kind of gasket that leakproofness is strong, its key points of the technical solution are that the sealed support is circular enclosed construction, the sheet metal includes thin plate one, thin plate two, the thin plate one, thin plate two is arranged in a ring, the internal diameter of the thin plate two is greater than the internal diameter of thin plate one, the thin plate one is attached at the side of soft seal layer, the thin plate two fits in soft seal layer on the side of thin plate one, the thin plate two is squeezed with thin plate one to be included, the inner ring of the thin plate one and the side of outer ring are fixedly connected to convex block, the thin plate two is equipped with detent slot towards the side of thin plate one, the detent slot and convex block, which squeeze, to be clamped, it has the advantages that stable structure leakproofness is strong.

Description

Corrugated metal Composition spacer is covered in a kind of double-contracting

Technical field

The utility model relates to pipe fitting leakproof field, in particular to corrugated metal Composition spacer is covered in a kind of double-contracting.

Background technique

What is sealed is many kinds of, can be generalized into contact-type and non-contact type, nearly all sealing belongs to direct contact seal.It connects The sealing of touching type is divided into elastomer contact and inelastic body contact (non-elastic materials such as sealing surface metal, graphite are made) again, close Sealing makes one of widest components of equipment application.

Nonmetallic gasket is selected in Room-temperature low-pressure, selects metal and nonmetallic combination sealing pad when pressing in high temperature；? When temperature, pressure have larger fluctuation, it is considered as the gasket with property, meanwhile, intensity, the surface roughness of flange Etc. technical performances to gasket selection also have important relationship.

Sealing under harsh working condition: in many of large-size chemical, electric power, smelter large container, Working condition is often in high temperature, middle pressure, and medium fluid is as inflammable, explosive, poisonous and harmful.And in equipment operation, temperature Degree, despite pressure fluctuations, the large container flange face that certain needs frequently dismantle operation are difficult to keep precision after long-term use, Difficulty is repaired, therefore the leakage problem of sealing surface is an important technological problems.

Existing Composition spacer generally includes sealed support, it is fixed be covered on sealed support in Composition spacer installation In the process, Composition spacer can be generally put into the mounting groove on device mouth flange, but has soft seal layer, soft seal layer Two sides be folded with sheet metal, soft seal layer is wrapped up by squeezing, but makes metal foil by squeezing by metal plectrum Piece forms bound edge, and the leakproofness of bound edge is poor.

Utility model content

The purpose of the utility model is to provide a kind of double-contractings to cover corrugated metal Composition spacer, has gasket construction stabilized seal The strong advantage of property.

The above-mentioned technical purpose of the utility model has the technical scheme that

Corrugated metal Composition spacer is covered in a kind of double-contracting, including corrugated sealed support, fixed laminating with sealed support two sides Soft seal layer, the two sides of soft seal layer are folded with sheet metal, and the sealed support is circular enclosed construction, described Sheet metal includes thin plate one, thin plate two, and the thin plate one, thin plate two are arranged in a ring, and the internal diameter of the thin plate two is greater than The internal diameter of thin plate one, the thin plate one are attached at the side of soft seal layer, and the thin plate two fits in soft seal layer backwards One side of thin plate, the thin plate two is squeezed with thin plate one to be included, and the inner ring of the thin plate one and the side of outer ring are fixedly connected with There is convex block, the thin plate two is equipped with the detent slot of clamping towards the side of thin plate one, and the clamping groove and convex block, which squeeze, to be clamped.

By using above-mentioned technical proposal, convex block engages the packet for preventing thin plate one and thin plate two from being formed with the extruding of detent slot Crack in side, be conducive to engage thin plate one with thin plate two it is closer, it is stronger, to improve the sealing of gasket construction Property.

Further, convex block setting hemispherical, the detent slot is corresponding with convex block matching, convex block top ring Equipped with elastic ring, the clamping groove with elastic ring clamping is offered in the bottom sides of the detent slot.

By using above-mentioned technical proposal, elastic ring engages with clamping groove extruding, is conducive to engage convex block with detent slot It is stronger.

Further, the ripple of the sealed support is sine wave.

By using above-mentioned technical proposal, the wave crest and trough of sine bellows be it is arc-shaped, arc-shaped do not have a wedge angle, in this way Setting can prevent sealed support from wearing out graphite linings 12, to ensure that the leakproofness of gasket.

Further, elastic packing oxidant layer is coated between the adjacent convex block.

By using above-mentioned technical proposal, the setting of elastic packing oxidant layer can be filled out gap existing between convex block It mends, to guarantee the leakproofness of gasket.

Further, sealing waterproof layer is coated in the elastic packing oxidant layer.

By using above-mentioned technical proposal, sealing waterproof layer can be prevented in use, water flow from thin plate one with it is thin It is flowed into gap between plate two and destroys gasket internal structure in gasket.

Further, refractory layer is coated on the sealant.

By using above-mentioned technical proposal, the setting of refractory layer can prevent from destroying inside gasket because device temperature is excessively high Structure.

Further, the turning that the thin plate two is bonded with thin plate one is set as arc-shaped.

By using above-mentioned technical proposal, the setting at arc-shaped turning can remove the burr of gasket corner, make gasket Side is smooth, and gasket is avoided to generate scratch, while being bonded convenient for gasket and flange to worker.

In conclusion the utility model has the following beneficial effects: passing through the setting of convex block and clamping groove, can play makes Thin plate one engage with thin plate two it is closer, to improve the effect of the leakproofness of gasket construction.

Detailed description of the invention

Fig. 1 is for embodying the integrally-built schematic diagram of Composition spacer；

Fig. 2 is used to embody the schematic diagram of the section sectional view of Composition spacer；

Fig. 3 is used to embody the schematic diagram of the end view in section of Composition spacer；

Fig. 4 is the schematic diagram of enlarged drawing at A in Fig. 3；

Fig. 5 is the schematic diagram for embodying coating.

In figure, 1, sealed support；2, soft seal layer；3, sheet metal；31, thin plate one；32, thin plate two；4, convex block；5, Detent slot；6, elastic ring；7, clamping groove；8, elastic packing oxidant layer；9, waterproof layer is sealed；10, refractory layer；12, graphite linings；13, Flanging.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment: corrugated metal Composition spacer is covered in a kind of double-contracting, as shown in Fig. 2, including corrugated sealed support 1, fixed The laminating soft seal layers 2 with 1 two sides of sealed support, wherein soft seal layer 2 is graphite linings 12, and graphite has excellent steady It is qualitative, self-lubrication and chemical stability, and have flexibility good, the coefficient of resilience is high, the strong advantage of corrosion resistance, therefore uses It is good that graphite does sealant sealing effect.

As shown in Figure 3 and Figure 4, sealed support 1 is circular enclosed construction, and the two sides of graphite linings 12 are equipped with metal foil Plate 3, sheet metal 3 include thin plate 1, thin plate 2 32, and thin plate 1 is arranged in a ring with thin plate 2 32, thin plate 2 32 Internal diameter is greater than the internal diameter of thin plate 1, and thin plate 1 is attached at the side side of graphite linings 12, and thin plate 2 32 is attached at graphite linings 12 on the side of thin plate 1, and thin plate 2 32 forms flanging 13 by squeezing, and flanging 13 and the inclusion of thin plate 1 form packet Side, wherein the inner ring of thin plate 1 and the side of outer ring are fixedly connected with convex block 4, and thin plate 2 32 is towards the side of thin plate 1 It is equipped with detent slot 5, convex block 4 engages with detent slot 5 by squeezing.Convex block 4 engages with the extruding of detent slot 5 prevents thin plate 1 Crack in the bound edge formed with thin plate 2 32, be conducive to engage thin plate 1 with thin plate 2 32 it is closer, it is stronger, To improve the leakproofness of gasket construction.

As shown in figure 4, the turning that thin plate 2 32 is bonded with thin plate 1 is set as arc-shaped, the setting at arc-shaped turning can be with The burr for removing gasket corner, keeps the side of gasket smooth, avoids gasket from generating scratch to worker, while being convenient for gasket and flange Fitting.

As shown in figure 4, wherein convex block 4 is hemispherical, detent slot 5 is corresponding with the matching of convex block 4, and 4 top of convex block is equipped with bullet Property circle 6, the smooth setting in the side of elastic ring 6 is additionally provided with the clamping that clamping is matched with elastic ring 6 in the bottom sides of detent slot 5 Slot 7, the arc-shaped setting of clamping groove 7.Convex block 4 is hemispherical to be bonded closer convenient for detent slot 5 with convex block 4, is conducive to improve thin Airtightness between plate 1 and thin plate 2 32, elastic ring 6 engage with the extruding of clamping groove 7, are conducive to make convex block 4 and detent slot 5 Engage stronger.

As shown in Fig. 2, the ripple on sealed support 1 is sine wave, the wave crest and trough of sine bellows are arc-shaped, circular arc Shape does not have wedge angle, and setting in this way can prevent sealed support 1 from wearing out graphite linings 12, to ensure that the leakproofness of gasket.

As shown in figure 5, being coated with elastic packing oxidant layer 8 between adjacent projections 4, elastomeric sealant is silicon rubber type sealing Agent, silicon rubber type sealant are material and the sealing material with compounding agents such as unification vulcanizing agent, reinforcing agents based on silicon rubber, This material volatility is low, and intensity is high, and stickup property is high, can fill up to gap existing between convex block 4, to guarantee to pad The leakproofness of piece.

As shown in figure 5, the upper surface of elastic packing oxidant layer 8 is coated with sealing waterproof layer 9.Waterproof layer 9 is sealed mainly to close It is main film forming matter at rubber or synthetic resin, is configured to the waterproof coating of one pack system.Sealing waterproof layer 9 can prevent In use process, water flow flows into destruction gasket internal structure in gasket in the gap between thin plate 1 and thin plate 2 32.

As shown in figure 5, being coated with refractory layer 10 on sealant, refractory layer 10 includes phosphate lead powder coating, phosphate lead Powder coating has resistance to hot charge cheap and easy to get, prepares simple advantage, refractory layer 10, which is applied on sealant, can prevent because setting Standby temperature is excessively high and destroys gasket internal structure.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (7)

1. corrugated metal Composition spacer is covered in a kind of double-contracting, including corrugated sealed support (1), fixation are laminating in sealed support (1) The soft seal layer (2) of two sides, the two sides of soft seal layer (2) are folded with sheet metal (3), it is characterised in that: the sealing Bracket (1) is circular enclosed construction, and the sheet metal (3) includes thin plate one (31), thin plate two (32), the thin plate one (31), thin plate two (32) is arranged in a ring, and the internal diameter of the thin plate two (32) is greater than the internal diameter of thin plate one (31), the thin plate One (31) are attached at the side of soft seal layer (2), and the thin plate two (32) fits in soft seal layer (2) backwards to thin plate one (31) on side, the thin plate two (32) and thin plate one (31), which squeeze, to be included, the inner ring of the thin plate one (31) and outer ring Side is fixedly connected to convex block (4), and the thin plate two (32) is equipped with detent slot (5) towards the side of thin plate one (31), institute It states detent slot (5) and convex block (4) and squeezes clamping.

2. corrugated metal Composition spacer is covered in a kind of double-contracting according to claim 1, it is characterised in that: the convex block (4) is in Hemispherical setting, the detent slot (5) is corresponding with convex block (4) matching, and convex block (4) top is equipped with elastic ring (6), described The clamping groove (7) with elastic ring (6) clamping is offered in the bottom sides of detent slot (5).

3. corrugated metal Composition spacer is covered in a kind of double-contracting according to claim 1, it is characterised in that: the sealed support (1) ripple is sine wave.

4. corrugated metal Composition spacer is covered in a kind of double-contracting according to claim 2, it is characterised in that: the adjacent convex block (4) elastic packing oxidant layer (8) are coated between.

5. corrugated metal Composition spacer is covered in a kind of double-contracting according to claim 4, it is characterised in that: the elastomeric sealant The upper surface of layer (8) is coated with sealing waterproof layer (9).

6. corrugated metal Composition spacer is covered in a kind of double-contracting according to claim 5, it is characterised in that: applied on the sealant Equipped with refractory layer (10).

7. corrugated metal Composition spacer is covered in a kind of double-contracting according to claim 1, it is characterised in that: the thin plate two (32) The turning being bonded with thin plate one (31) is set as arc-shaped.