CN2283773Y

CN2283773Y - Adjustable pipe joint

Info

Publication number: CN2283773Y
Application number: CN 97205957
Authority: CN
Inventors: 刘长海; 陈淑仪
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-28
Filing date: 1997-01-28
Publication date: 1998-06-10
Anticipated expiration: 2007-01-28

Abstract

The utility model relates to an adjustable pipe joint which is provided with a basal body, wherein both ends of the basal body are provided with sinking holes, and an inner through hole is arranged in the middle; both of the two ends of the basal body are respectively provided with a connection pipe, and one end of each connection pipe is extended into the inner through hole through the sinking holes; a sealing washer and a sealing ring group are arranged outside each connection pipe in the sinking holes of the basal body, a pressing plate and a pressing cover plate are also arranged outside the sealing ring group, and the pressing cover plate is connected with the basal body through a fastening screw. The utility model has the advantages of reasonable design, simple structure and good sealing performance, and can effectively eliminate the internal stress of a pipeline system due to hot expansion and cold contraction. The utility model which is an ideal compensating device for pipelines is suitable for the pipeline transportation of various fluids, and is especially suitable for the transportation of fluids with high temperature and high pressure.

Description

A kind of can regulate pipe joint

The utility model relates to a kind of engineering pipe coupling parts, specifically a kind of can regulate pipe joint.

In actual production, need a large amount of fluid lines, with the various fluids of carrying different temperatures, different pressures to require, these pipelines are because of reasons such as the conveying of long distance, climate reason, conveyance fluid technological requirement heat tracings, often exist the phenomenon of expanding with heat and contract with cold, this internal stress that phenomenon produced of expanding with heat and contract with cold can cause pipeline flexible, damages pipe-line system.For eliminating this phenomenon, at present, line transportation has generally all been taked some indemnifying measures.A kind of compound seal off-load formula compensator is disclosed as patent CN2152962Y, mainly constitute by flexible core pipe, adapter, balancing sleeve, gland, compound seal filler, filler support tube, hole, pull bar and doughnut-shaped steel plate, flexible core pipe, filler support tube, gland and folded composite filling thereof are linked as main body, its main body be with outward by adapter, balancing sleeve, gland with and folded filler constitute accessory body, the major-minor body can reciprocatingly slide with external force.Because the effect in hole, the pressure medium that reaches in flexible core pipe, the balancing sleeve institute clip space equals the pressure medium that compensator is carried.But its complex structure, inconvenient operation, the cost height also needs often to change stuffing box packing, poor practicability.

The purpose of this utility model is exactly to provide a kind of simple in structure, good airproof performance in order to overcome the deficiency of above-mentioned prior art, does not need frequent maintenance, can effectively eliminate a kind of can regulate pipe joint of the internal stress that pipe-line system produces owing to expanding with heat and contract with cold.

For achieving the above object, a kind of can regulate pipe joint, it is provided with matrix, and the matrix two ends are provided with counterbore, and inner via hole is established in the centre, the matrix two ends are respectively equipped with an adapter, it is characterized in that an end of taking over extends in the inner via hole by counterbore, take over the outside in the counterbore and be provided with seal washer and seal ring group that pressing plate is established in the seal ring group outside, cover clamp is established in the pressing plate outside, and cover clamp is connected with matrix by fastening screw trip bolt.

The utility model has been owing to taked said structure, good airproof performance, and convenient, practical, safe and reliable, long service life does not need frequent maintenance, the destruction to pipe-line system of having avoided expanding with heat and contract with cold.

Below in conjunction with accompanying drawing the utility model is described further:

Fig. 1 is the utility model structural representation, also is embodiment's schematic representation.

As can be seen from Figure 1, a kind of can regulate pipe joint, it is provided with matrix 1, and two of matrix 1 is provided with counterbore, and the centre is provided with inner via hole, and the aperture is slightly larger than applied outer diameter tube.Matrix 1 two ends are respectively equipped with one and take over 2, adapter 2 is identical with the pipe-line system specification, being abutted against pipe 2 between the utility model and the pipe-line system is connected, its Placement can connect or is threaded etc. with welding, flange, when pipeline expanded by heating or cooling contraction, take over 2 and in the inner via hole of matrix 1, slidably stretch, and can not make pipe-line system bear too big internal stress.Take over 2 outsides in the counterbore and establish seal washer 3, seal ring group 4, pressing plate 5, end casing 6 successively, wherein, seal ring group 4 can combine by the several sealed sheet is alternate with steel disc, and it is looped around takes on 2, and restorability is good.Seal ring group 4 and seal washer 3 are made by unlike material, according to the difference of the character of applied pipe-line system conveyance fluid, temperature, pressure, select the seal washer and the seal ring group of unlike material during use.Above-mentioned each parts are close to solid screw 7 and tighten together, and screw 7 not only plays a part fastening, and adjusting screw 7 can also satisfy seal washer and the seal request of seal ring group to different pipe-line system pressure.In order to make the can regulate pipe joint keep identical operating temperature with applied pipe-line system, also can establish heating agent chuck 8 in the outside of matrix 1, ordinary circumstance heating agent chuck 8 can not established.A kind of can regulate pipe joint of the utility model also can be established joint by an end, and direct welded pipe line of the other end or employing alternate manner connect.

During use, calculate the maximum possible deformation quantity according to applied pipe-line system, select the matrix in appropriate length and endoporus aperture, put into adapter, again with seal washer, seal ring group, pressing plate, end casing, fastening screw trip bolt install successively, will take over pipe-line system to link to each other, and regulate fastening screw trip bolt and get final product.If desired, can establish the heating agent chuck in the matrix outside.

Claims

1, a kind of can regulate pipe joint, it is provided with matrix, the matrix two ends are provided with counterbore, inner via hole is established in the centre, and the matrix two ends are respectively equipped with an adapter, it is characterized in that an end of taking over extends in the inner via hole by counterbore, take over the outside in the counterbore and be provided with seal washer and seal ring group, pressing plate is established in the seal ring group outside, and cover clamp is established in the pressing plate outside, and cover clamp is connected with matrix by fastening screw trip bolt.

2, a kind of can regulate pipe joint according to claim 1 is characterized in that said seal ring group is to combine by the several sealed sheet is alternate with steel disc.

3, a kind of can regulate pipe joint according to claim 1 is characterized in that the said matrix outside is provided with the heating agent chuck.