CN2375843Y

CN2375843Y - Composite nylon tube assembly

Info

Publication number: CN2375843Y
Application number: CN 98219233
Authority: CN
Inventors: 焦明华; 俞建卫; 叶敏; 田明
Original assignee: Hefei University of Technology
Current assignee: Hefei University of Technology; Hefei Polytechnic University
Priority date: 1998-08-03
Filing date: 1998-08-03
Publication date: 2000-04-26
Anticipated expiration: 2008-08-03

Abstract

The utility model relates to a composite tube subassembly which uses MC nylon tubes as base materials. An internal layer of a pipe fitting is spliced with the base materials. The sectional plane of an oblique cut cylinder is trapezoidal, and an angle head is spliced with the oblique cutting cylinders. A tee joint is spliced with cylinders, the sectional plane of one cylinder is provided with a wedge-shaped groove, and the other cylinder is provided with a wedge-shaped head. A reducing joint is spliced with a big pipe section, a transition section and a small pipe section. The external surface of the base materials is bonded with a composite reinforcement layer. A tube joint has a composite reinforcement joint structure that a sealing ring, a fixed flange, and a loose type flange are bonded, or bell and spigot and glued, or supported with the external surface of the end part of one MC nylon tube. The utility model solves the problem of the manufacture of nylon complex cavity body tube fittings and tube joints. The utility model has the advantages of simple technology, low cost, and good bearing-sealing ability.

Description

Composite mould nylon tube assembly

The utility model relates to a kind of nylon composite materials piping element application technology.

Monomer cast nylon (being called for short MC nylon) spun casting tubing has good mechanical property, chemical stability and wear-resisting material abrasion characteristic, is specially adapted to carry the liquid-solid two-phase fluid and the chemical fluid that contain the silt abrasive material.But because manufacturings such as the MC nylon pipe of complicated cavity such as elbow, threeway, reducer fitting are very difficult, expense is very high, and yield rate is low, and the solution of jointing is also very uneconomical between the MC nylon spun casting tubing.Therefore cause heavy caliber MC nylon pipeline can not use widely so far.

The purpose of this utility model provides that a kind of technology is simple, cost is low, yield rate is high, good reliability, be body material with the MC nylon tube, add the compound MC nylon tube assembly of the compound enhancement layer of specific thicknesses and shape, comprise pipe fitting and pipe joint.

The purpose of this utility model realizes by the following technical solutions:

With the MC nylon tube is the composite tubular assembly of base material, its composite pipe fitting internal layer is spliced to form by base material, elbow is the trapezoidal cylinder splicing of cutting sth. askew by section, threeway is had the cylinder splicing of the cylinder and the sphenocephaly of wedge slot by section, reducer fitting is by big tube coupling, transition segment and the splicing of tubule joint, again at the bonding compound enhancement layer of splicing construction outer surface.Compound enhancement layer can be looked pipe fitting size and usage requirement, and the part is coated with shoe around splicing MC nylon pipe seam, also can be coated with the whole outer surface of shoe at splicing MC nylon pipe, forms complete composite bed.Multiunit tube joint is in the bonding compound enhancement layer jointing structure that is the socket glue joint formula, accepts seal ring formula and fastening flange and loose flange type of MC nylon tube end outer surface.

The utility model has the advantages that manufacturing process is simple, cost is low, yield rate is high, good reliability, depress at the pipe of broad and have good pressure bearing and seal ability.Pipe joint has detachable type and non-dismountable type two classes, can satisfy different seal requests.Solved the supporting manufacturing technology difficult problem of complicated cavity MC nylon pipe and spun casting MC nylon pipe jointing.

Below in conjunction with drawings and Examples the utility model is described in detail:

Fig. 1 is first kind of structural type schematic representation of the utility model composite pipe fitting elbow.

Fig. 2 is second kind of structural type schematic representation of the utility model composite pipe fitting elbow.

Fig. 3 is the third structural type schematic representation of the utility model composite pipe fitting elbow.

Fig. 4 is the structural type schematic representation of the utility model composite pipe fitting threeway.

Fig. 5 is the structural type schematic representation of the utility model composite pipe fitting reducer fitting.

Fig. 6 is the utility model multiunit tube joint socket glue joint formula linkage structure form schematic representation.

Fig. 7 is that the utility model multiunit tube joint is accepted seal ring formula linkage structure form schematic representation.

Fig. 8 is the utility model multiunit tube joint fastening flange and loose flange type linkage structure form schematic representation.

Compound MC nylon tube assembly described in the utility model comprises pipe fitting and pipe joint.As shown in the drawing, its structure is to be body material with spun casting MC nylon pipe, at the compound enhancement layer of bonding certain thickness of the outer surface of body material and definite shape.Compound enhancement layer is bonding the forming of resin adhesive of being filled by lamination coating.Reinforcing fibre material can be glass fibre and fabric thereof, also can look working condition and adopt other fiber and fabric thereof.Resin adhesive as the outer layer fiber enhancement layer can be used epoxy resin, alkyd resin or other resin adhesive, and adds certain filler.Outer layer fiber strengthens the resin compounded layer, and visual usage requirement part is coated with shoe around splicing MC nylon pipe seam, also can be coated with the whole outer surface of shoe at splicing MC nylon pipe, forms complete composite bed.

1, compound MC nylon pipe

Compound MC nylon pipe elbow as shown in Figure 1, 2, 3, threeway as shown in Figure 4, reducer fitting all is to be that base material pieces together internal layer with the MC nylon tube as shown in Figure 5, reprocess fibre strengthens resin compounded and becomes outer 2.The internal layer 1 of pipe bend is that as required base material to be cut into the polylith section be trapezoidal to cut sth. askew cylindricly, splices bonding compound (as Fig. 1, Fig. 2, Fig. 3) according to the angle of required bending again.The internal layer of reducer fitting is transition segment 1c of splicing between the big tube coupling 1a of base material, tubule joint 1b, bonding more compound (as Fig. 5).The internal layer 1 of threeway is that the base material pipe is cut into corresponding wedge slot 1a and sphenocephaly 1b amalgamation, and bonding compound (as Fig. 4).

2, compound MC nylon tube joint

Compound MC nylon tube joint is shown in Fig. 6,7,8, and the fiber-reinforced resin composite bed of base material pipe end outer surface has various ways on structure shape.Shown in Figure 6 is the socket glue joint joint structure, and the internal layer 1e of joint and 1f are MC nylon tube base materials, and outer 2a and 2b are the fiber-reinforced composite layer.1e and the 2a compound formation insertion end that bonds, 1f and the 2b compound formation socket end that bonds.The end of insertion end all has certain taper usually, and the bell end end is combined into the overhanging cylinder with corresponding tapering by fiber-reinforced resin, and after guaranteeing that insertion end injects bell end, two conical surfaces are fitted fully and formed good connection.Use the binder adhering and sealing between the plug surface.

Figure 7 shows that and accept the seal ring joint structure, pipe end base material 1e and the 2a compound formation insertion end that bonds, base material 1f and the 2b compound formation socket end that bonds has the seal groove 3 more than 1, landfill seal ring 4 in seal groove 3 on the fiber-reinforced resin composite bed 2a of insertion end end.Insertion end injects the end of socket end by in the compound overhanging cylinder 2b that constitutes of fiber-reinforced resin, constitutes pipeline and connects.Seal by seal ring between the plug surface.

Figure 8 shows that composite flange formula linkage structure, wherein 1e and 2a constitute the fastening flange joint, and 1f and 2b and 2c constitute the loose flange type joint.The making of fastening flange joint is directly to make fixed flange 2a by certain process engineering with fiber-reinforced resin on the end 1e of MC nylon tube base material, also can precast flange plate 2a, bonds on the pipe end 1e again.The material of making flange plate 2a can adopt epoxy resin, alkyd resin or other resin, uses fiber reinforcement usually.The making of lap joint flange dish joint is to make a step 2b with fiber-reinforced resin on the end 1f of MC nylon tube base material, prefabricated flange plate 2c of kink on step 2b.The material of flange plate 2c is unrestricted, as long as satisfy usage requirement.The connection of flange can be adopted fastening flange and fastening flange, lap joint flange and lap joint flange, the Placement of fastening flange and lap joint flange pairing.Realize being tightly connected by bolt and packing ring.

Claims

1, a kind of is the composite tubular assembly of stock with the MC nylon tube, comprises composite pipe fitting and multiunit tube joint; Its elbow is the trapezoidal cylinder splicing of cutting sth. askew by the some sections of base material (1), threeway is had cylinder (1b) splicing of the cylinder (1a) and the sphenocephaly of wedge slot by the base material section, reducer fitting is by the big tube coupling of base material (1a), little tube coupling (1b) and transition segment (1c) splicing, the outer surface that it is characterized in that pipe fitting and pipe joint base material is bonded with compound enhancement layer, this layer can be coated with shoe around splicing MC nylon pipe seam in the part, also can be coated with the whole outer surface of shoe at splicing MC nylon pipe.

2, by the described composite tubular assembly of claim 1, the compound enhancement layer (2a) that it is characterized in that pipe joint base material (1e) end and outer surface constitutes insertion end, the compound enhancement layer (2b) of pipe joint base material (1f) end and outer surface constitutes bell end, insertion end is inserted bell end, glueds joint between the socket joint face.

3, by the described composite tubular assembly of claim 1, the compound enhancement layer (2a) that it is characterized in that pipe joint base material (1e) end and outer surface constitutes insertion end, the compound enhancement layer (2b) of pipe joint base material (1f) end and outer surface constitutes socket end, insertion end is inserted socket end, on the compound enhancement layer (2a) of insertion end more than one seal groove (3) is arranged, landfill seal ring (4) in the seal groove.

4,, it is characterized in that the compound enhancement layer (2a) of pipe joint base material (1e) end and outer surface constitutes fastening flange by the described composite tubular assembly of claim 1.

5,, it is characterized in that the compound enhancement layer step (2b) of pipe joint base material (1f) end and outer surface and the lap joint flange dish (2c) of step (2b) back constitute loose flange type by the described composite tubular assembly of claim 1.

6,, it is characterized in that pipe fitting connects also to adopt claim 2 or 3 or 4 or 5 described structures by the described composite tubular assembly of claim 1.

7, by the described composite tubular assembly of claim 1, it is characterized in that the compound enhancement layer of base material end and outer surface can have tapering bonding.