CN103775756A

CN103775756A - Pipeline preventing impact of high-pressure fluid

Info

Publication number: CN103775756A
Application number: CN201410049348.XA
Authority: CN
Inventors: 周忠海; 郝宗睿; 徐娟
Original assignee: Oceanographic Instrumentation Research Institute Shandong Academy of Sciences
Current assignee: Oceanographic Instrumentation Research Institute Shandong Academy of Sciences
Priority date: 2014-02-12
Filing date: 2014-02-12
Publication date: 2014-05-07

Abstract

The invention discloses a pipeline preventing impact of a high-pressure fluid. The pipeline preventing impact of the high-pressure fluid is arranged on a pipeline with existence of high-pressure impact or pulsation, and comprises a pipe wall casing, elastic corrugation, an expansion cavity, an inside cylinder wall, an inner pipeline wall, a cavity A wall casing, a sealing groove, a air hole and a sealing ring, wherein the elastic wave-shaped corrugation structures are located on two sides of the pipe wall casing and used for supporting the pipe wall casing; the inner pipeline wall and the cavity A wall casing form a cavity A; and the inside cylinder wall, the expansion cavity and the pipe wall casing form a cavity B. The pipeline provided by the invention has good anti-extrusion and recovery capacities, can absorb impact at high-energy level, and prevents the pipeline vibration.

Description

A kind of pipeline that prevents that high-pressure liquid from impacting

Technical field

The present invention relates to thermal power system field, relate in particular to a kind of pipeline that prevents that high-pressure liquid from impacting.

Background technique

The high-pressure pulsating air-flow that some thermal power systems produce and the high-pressure pulsating fluid of carrying fluid device to produce due to self structure characteristic, cause pipeline vibration, causes noise and device damage.

Summary of the invention

Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of pipeline that prevents that high-pressure liquid from impacting, and is installed on and carries or discharge pipe line, for absorbing and consuming the pulsatile impact energy in pipeline, prevents pipeline vibration.

For achieving the above object, the invention provides a kind of pipeline that prevents that high-pressure liquid from impacting, be placed on the pipeline that has impacting with high pressure or pulsation, comprise tube wall shell, elastic corrugated, expansion cavity, inner side barrel, inner-walls of duct, A chamber wall shell, seal groove, vent and seal ring, described elastic corrugated structure is positioned at described tube wall shell both sides, described elastic corrugated structure is wavy shaped configuration, be used for supporting described tube wall shell, described expansion cavity structure is positioned on described tube wall inner surface of outer cover, described expansion cavity structure has the annular cavity of sudden expansion, described expansion cavity structure is locating to have T-shaped expansion chamber near tube wall shell (1), described elastic corrugated structure inner side is connected with described inner side barrel, there is a determining deviation between the two, described inner-walls of duct and described A chamber wall shell form A chamber, described seal groove structure is positioned at Bi Ke two ends, described A chamber, described O-ring seal is arranged in described seal groove, described inner side barrel, described expansion cavity and described tube wall shell form B chamber, described ring-shaped ventilation hole is positioned at described A chamber and described B chamber upper strata, and described ring-shaped ventilation hole connects described A chamber and described B chamber.

In preferred embodiments of the present invention, described O-ring seal material is rubber.

In another preferred embodiments of the present invention, it is larger that described vent approaches described B chamber sector hole footpath, approaches described A chamber end aperture less.

The pipeline that prevents that high-pressure liquid from impacting provided by the invention, because elastic corrugated structure 2 exists wavy shaped configuration, has good anti-extrusion and recovery capability, and other impacts therefore to absorb high energy level, prevents pipeline vibration.

Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further, to understand fully object of the present invention, feature and effect.

Accompanying drawing explanation

Fig. 1 is the pipeline structure schematic diagram of a preferred embodiment of the present invention;

Fig. 2 is the pipeline generalized section of a preferred embodiment of the present invention.

Embodiment

As depicted in figs. 1 and 2, a kind of pipeline that prevents that high-pressure liquid from impacting, be placed on the pipeline that has impacting with high pressure or pulsation, comprise tube wall shell 1, elastic corrugated 2, expansion cavity 3, inner side barrel 4, inner-walls of duct 5, A chamber wall shell 6, seal groove 7, vent 8, seal ring 9.Tube wall shell 1 both sides have elastic corrugated structure 2, and elastic corrugated structure 2 exists wavy shaped configuration, have good anti-extrusion and recovery capability, and other impacts to absorb high energy level, prevents pipeline vibration, and elastic corrugated structure has played outer wall supporting effect.Expansion cavity structure 3 on tube wall shell 1 internal surface has the annular cavity of sudden expansion; Elastic corrugated structure 2 inner sides are connected with inner side barrel 4, and between the two apart from 2-4mm, inner-walls of duct 5 has formed A chamber with A chamber wall shell 6; Wall shell 6 two ends, A chamber have seal groove structure 7, lay O-ring seal 9 in seal groove 7, and material is rubber.Inner side barrel 4 has formed B chamber with expansion cavity 3 and tube wall shell 1; A chamber and B chamber upper strata have ring-shaped ventilation hole 8, and ring-shaped ventilation hole 8 connects A chamber and B chamber, and vent 8 is larger near B chamber sector hole footpath, approach A chamber end aperture less, are convenient to B chamber indoor air flow to A.

In the time of the disclosed line segments of high-pressure pulsating fluid process the present embodiment:

If energy is lower, the inner-walls of duct 5 of A chamber radially outwards expands, A chamber portion gas is squeezed and enters B chamber, because B chamber has expansion cavity structure 3, therefore can absorb the fluid pulsation energy passing over, the elastic corrugated structure 2 now with supporting effect is out of shape less, after the peak value pulsation of fluid, in B chamber, extruded gas enters in A chamber by vent 8, recovers the form of two chambers of AB, waits for the arriving of next impacting with high pressure.

If energy is higher, radially outwards expansion amplitude is larger for the inner-walls of duct 5 of A chamber, A chamber portion gas is squeezed and enters B chamber, B chamber globally expanding, elastic corrugated structure 2 is subject to upper end expansion simultaneously, the distortion of lower end compression, because elastic corrugated structure 2 exists wavy shaped configuration, have good anti-extrusion and recovery capability, other impacts therefore to absorb high energy level, prevents pipeline vibration.

More than describe preferred embodiment of the present invention in detail.The ordinary skill that should be appreciated that related domain just can design according to the present invention be made many modifications and variations without creative work.Therefore, all technician in the art, all should be in by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment.

Claims

1. a pipeline that prevents that high-pressure liquid from impacting, be placed on the pipeline that has impacting with high pressure or pulsation, comprise tube wall shell (1), elastic corrugated (2), expansion cavity (3), inner side barrel (4), inner-walls of duct (5), A chamber wall shell (6), seal groove (7), vent (8) and seal ring (9), it is characterized in that, described elastic corrugated structure (2) is positioned at described tube wall shell (1) both sides, described elastic corrugated structure (2) is wavy shaped configuration, be used for supporting described tube wall shell (1), described expansion cavity structure (3) is positioned on described tube wall shell (1) internal surface, described expansion cavity structure (3) has the annular cavity of sudden expansion, described elastic corrugated structure (2) inner side is connected with described inner side barrel (4), there is a determining deviation between the two, described inner-walls of duct (5) forms A chamber with described A chamber wall shell (6), described seal groove structure (7) is positioned at described A chamber wall shell (6) two ends, described O-ring seal (9) is arranged in described seal groove (7), described inner side barrel (4), described expansion cavity (3) and described tube wall shell (1) form B chamber, described ring-shaped ventilation hole (8) is positioned at described A chamber and described B chamber upper strata, and described ring-shaped ventilation hole (8) connects described A chamber and described B chamber.

2. the pipeline that prevents that high-pressure liquid from impacting as claimed in claim 1, is characterized in that, described O-ring seal (9) material is rubber.

3. the pipeline that prevents that high-pressure liquid from impacting as claimed in claim 1, is characterized in that, it is larger that described vent (8) approaches described B chamber sector hole footpath, approaches described A chamber end aperture less.