CN114673856A

CN114673856A - Pipeline vibration reduction framework based on metal rubber and working method thereof

Info

Publication number: CN114673856A
Application number: CN202210376739.7A
Authority: CN
Inventors: 任志英; 朱天奇; 黄伟; 秦红玲; 白鸿柏
Original assignee: Fuzhou University
Current assignee: Fuzhou University
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-06-28
Anticipated expiration: 2042-04-12
Also published as: CN114673856B

Abstract

The invention relates to the technical field of pipeline vibration reduction, in particular to a pipeline vibration reduction grillwork based on metal rubber and a working method thereof. The pipeline vibration reduction grid based on the metal rubber can effectively reduce flow-induced vibration of pipelines, avoid fretting contact wear between the pipelines and prolong the service life of a pipeline system.

Description

Pipeline vibration reduction framework based on metal rubber and working method thereof

Technical Field

The invention relates to the technical field of pipeline vibration reduction, in particular to a pipeline vibration reduction grid frame based on metal rubber and a working method thereof.

Background

The pipeline system is one of important engineering structures widely applied in modern industrial devices, wherein the hoses are widely applied to short-distance transmission, elbow transmission, transmission of various media and the like due to the characteristics of high transmission efficiency, simple structure, strong flexibility and the like, and dozens or even dozens of hoses are often used for transmitting media to form the pipeline system in practical engineering application.

The industrial environment often has harsh conditions such as high temperature, high pressure, noise, these all can produce the influence to pipeline transmission system, and the biggest influence is caused to the pipeline system that comprises a plurality of hoses because the flow impact of transmission medium makes the hose take place whole and local stream and causes the vibration, leads to taking place contact wear between the hose, can lead to the hose to take place to wear out thereby leading to the medium leakage under the severe condition. At present, the existing grillwork is often only used for simply separating pipelines and avoiding confusion, the pipeline vibration is not reduced, the abrasion effect is avoided, even the existing grillwork can lead to the sliding abrasion and the fretting contact abrasion between the pipelines and the grillwork due to the structural problem, the abrasion of the pipelines is accelerated, and the service life of the pipelines is shortened.

Disclosure of Invention

The invention aims to provide a pipeline vibration reduction framework based on metal rubber and a working method thereof, wherein the pipeline vibration reduction framework based on metal rubber can effectively reduce flow-induced vibration of pipelines, avoid fretting contact wear among the pipelines and prolong the service life of a pipeline system.

The technical scheme of the invention is as follows: the utility model provides a pipeline damping framework based on metal rubber, includes square framework, the octagon through-hole that has a plurality of array neatly to arrange in the square framework, all be provided with the elastic sheet in the octagon through-hole on the rectangle plane of two liang of intervals one side, the elastic sheet is protruding form, and one end links to each other with square framework, and the other end is the free end that can freely stretch out and draw back the activity when receiving the vibration oppression, the metal rubber with the lower surface contact of elastic sheet is installed on the rectangle plane of elastic sheet place in the octagon through-hole.

Furthermore, the elastic sheets and the square grillwork are integrally formed, and the elastic sheets are obliquely arranged and consistent with the diagonal direction of the rectangular plane where the elastic sheets are located.

Furthermore, counter bores are formed in four rectangular planes containing the elastic sheets in the octagonal through holes, and the metal rubber is fixed on the rectangular planes through the counter bores and located on the inner sides of the elastic sheets.

Furthermore, the counter bore is located at the center of the rectangular plane and is located below the middle of the elastic sheet, the counter bore is a cylindrical counter bore with a corrugated concave-convex structure on the inner wall surface, the lower end of the metal rubber is cylindrical and is fastened with the counter bore, and the upper end of the metal rubber is spherical and is in contact with the lower surface of the elastic sheet.

Furthermore, grooves are formed in the four peripheral surfaces of the square grillwork, mounting buckle holes used for being movably connected with mounting buckles are formed in the grooves, and positioning holes are formed in the chamfered surfaces of the four corners of the square grillwork.

Further, the cross connector and the T-shaped connector are used for combining a plurality of pipeline damping grids.

Furthermore, the cross connector comprises a quadrangular prism, positioning pins which protrude outwards and are used for being matched with the positioning holes are arranged on the cylindrical surface of the quadrangular prism, wing plates which are used for being placed into the grooves and matched to form a cross shape are arranged at four corners of the quadrangular prism, and mounting buckles matched with the mounting buckle holes are arranged on two side surfaces of each wing plate; rectangular guard plates are arranged on two end faces of the quadrangular prism.

Further, T word connector includes an isosceles right angle triangular prism, triangular prism waist limit place two cylinders all are provided with outside protrusion and are used for with locating hole matched with locating pin, the three turning of triangular prism all is provided with the pterygoid lamina that is used for putting into the recess and cooperates and forms the T style of calligraphy, lie in both sides face and the other two pterygoid laminas of the pterygoid lamina on the triangular prism right angle and all be provided with on the side that is close to triangular prism right angle one side and detain hole matched with installation and detain, the both ends face of triangular prism all is provided with the triangle-shaped backplate.

Further, the groove is long-strip-shaped; the positioning hole is a rectangular counter bore; the installation buckle is in a barb shape, and the installation buckle hole comprises a barb cavity matched with the installation buckle.

When the pipeline vibration reduction grid work method based on the metal rubber is used, all pipelines are arranged in octagonal through holes of a square grid in a penetrating mode, and four elastic sheets in the octagonal through holes enable all thin branch hoses to be supported and suspended in the centers of the octagonal through holes in a separating mode, so that the pipelines are positioned in a separating mode; when more square grids are needed, a plurality of damping grids are assembled and used through the cross connectors and the T-shaped connectors.

Compared with the prior art, the invention has the following advantages:

the pipeline vibration reduction grid frame based on the metal rubber is integrally formed and simple in structure, and flow-induced vibration of a pipeline, which is generated by medium flow impact or environmental excitation, is effectively reduced through the excellent vibration reduction performance of the inclined elastic sheet and the metal rubber. Meanwhile, each pipeline is separately positioned, fretting contact abrasion between the pipelines is avoided, the service life of a pipeline system is prolonged, and even the problem of leakage of a transmission medium is solved. In addition, the vibration reduction grillwork is provided with a special loose-loop structure, and a plurality of vibration reduction grillworks can be combined and used through the cross connector and the T-shaped connector so as to deal with different application scenes.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of area A of FIG. 1 in accordance with the present invention;

FIG. 5 is an enlarged view of area B of FIG. 3 in accordance with the present invention;

FIG. 6 is an enlarged view of the area C of FIG. 3 in accordance with the present invention;

FIG. 7 is a block diagram of the cross connector of the present invention;

FIG. 8 is an enlarged view of area D of FIG. 7 in accordance with the present invention;

FIG. 9 is a block diagram of the T-connector of the present invention;

FIG. 10 is a combined structure of four square grids of the present invention after being connected;

in the figure: 1-square grid, 11-octagonal through hole, 12-rectangular plane, 13-chamfered surface, 2-elastic sheet, 3-metal rubber, 4-positioning hole, 5-mounting buckle hole, 6-groove, 7-counter bore, 8-cross connector, 81-positioning pin, 82-mounting buckle, 83-wing plate, 84-rectangular guard plate, 85-quadrangular prism, 9-T connector, 91-triangular prism, 92-positioning pin, 93-wing plate, 94-mounting buckle and 95-triangular guard plate.

Detailed Description

In order to make the aforementioned features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, but the present invention is not limited thereto.

Refer to fig. 1 to 10

The utility model provides a pipeline damping framework based on metal rubber, includes square framework 1, the octagon through-hole 11 that has a plurality of array neatly to arrange in the square framework, all be provided with elastic sheet 2 on the rectangle plane 12 of two liang of intervals one side in the octagon through-hole, elastic sheet is protruding form, and one end links to each other with square framework, and the other end is the free end that can freely stretch out and draw back the activity when receiving the vibration oppression, metal rubber 3 with elastic sheet's lower surface contact is installed on the rectangle plane in the elastic sheet place in the octagon through-hole. The metal rubber has good vibration damping performance.

In this embodiment, the elastic sheet is formed integrally with the square lattice and is a sheet peeled off from the lattice body. The elastic sheets are obliquely arranged and are consistent with the diagonal direction of the rectangular plane where the elastic sheets are located. The inclined arrangement can enlarge the contact range with the pipeline, alleviate the contact impact and avoid unnecessary scratching of the pipeline

In this embodiment, counter bore 7 has all been opened on four rectangle planes that contain the elastic sheet in the octagon through-hole, the counter bore is located the planar center of rectangle to be in elastic sheet's middle part below, the counter bore is the cylindric counter bore that the inner wall face has corrugated concave-convex structure, can increase the fastening power with metal rubber, avoids metal rubber to deviate from. The lower end of the metal rubber is cylindrical and is fastened with the counter bore and is positioned on the inner side of the elastic sheet, and the upper end of the metal rubber is spherical and is in contact with the lower surface of the elastic sheet.

In this embodiment, the four circumferential surfaces of the square lattice frame are provided with strip-shaped grooves 6, a pair of mounting buckle holes 5 for slipknot connection with a mounting buckle is arranged in the grooves, and the chamfered surfaces 13 at the four corners of the square lattice frame are provided with positioning holes 4, which are rectangular counter bores.

In the embodiment, the cross connector 8 and the T-shaped connector 9 are used for combining a plurality of pipeline damping grids.

In this embodiment, the cross connector has a cross-shaped symmetrical structure and includes a quadrangular prism 85, and positioning pins 81 protruding outward and used for matching with the positioning holes are disposed on the cylindrical surfaces of the quadrangular prism and used for limiting the position relationship between the cross connector and the square lattice. Four corners of the quadrangular prism are provided with wing plates 83 which are used for being placed into the grooves and matched with each other to form a cross shape, two side faces of each wing plate are provided with mounting buckles 82 matched with the mounting buckle holes, and the mounting buckles are in a barb shape so as to be matched with the mounting buckle holes and realize the connection of the cross connector and the square grillwork. The installation buckle is movably connected with the installation buckle hole and can be detached. Rectangular guard plates 84 are arranged on two end faces of the quadrangular prism and used for limiting axial movement of the cross connector and ensuring stability of the square grid assembly.

In this embodiment, the T-shaped connector has the same characteristics as the cross connector, and the actual structure is half of the cross connector. The T-shaped connector is of a symmetrical structure and comprises an isosceles right triangular prism 91, two cylindrical surfaces where the waist edges of the triangular prism are located are provided with positioning pins 92 which protrude outwards and are used for being matched with the positioning holes, and the positioning pins are used for limiting the position relation between the T-shaped connector and the square grid. Three turning of triangular prism all is provided with and is used for putting into the recess and cooperates the pterygoid lamina 93 that forms the T style of calligraphy, and the both sides face that lies in the pterygoid lamina on the triangular prism right angle and two other pterygoid laminas all are provided with on being close to the side of triangular prism right angle one side and detain hole matched with installation and detain 94, the installation is detained for barb form to detain the hole adaptation with the installation, realize being connected of T word connector and square grillwork. Triangular guard plates 95 are arranged on two end faces of the triangular prism and used for limiting axial movement of the T-shaped connector and ensuring stability of the grid assembly.

The use method of the pipeline vibration reduction framework based on the metal rubber comprises the following steps:

during operation, each pipeline penetrates through the octagonal through hole, the support of the four inclined elastic sheets is suspended in the center of the through hole, the contact range between the inclined elastic sheets and the pipeline is enlarged, and unnecessary scratching of the pipeline is avoided. When the pipeline vibrates due to flowing impact of a transmission medium or environmental excitation, the pipeline presses the elastic sheet and the metal rubber, the vibration of the pipeline can be effectively reduced through the excellent vibration reduction and absorption characteristics of the inclined elastic sheet and the metal rubber, and the problems of reduction of pipeline transmission efficiency and reduction of service life due to vibration are avoided; meanwhile, the vibration reduction grid can also separate and position each pipeline, avoid contact fretting wear between the pipelines, and prevent the problems of medium leakage, service life reduction and the like caused by wearing through the pipelines.

When the number of pipelines is large, the number of the damping grids can be flexibly selected through the cross connectors and the T-shaped connectors. The positions of the connectors and the vibration reduction grids can be determined through the positioning pins and the guard plates during connection, then the mounting buckles are fastened to combine a plurality of vibration reduction grids together, the cross connectors can be connected with the grids in four vibration reduction directions, the T-shaped connectors can be connected with the two vibration reduction grids, and the cross connectors and the T-shaped connectors can be used for combining and connecting the plurality of vibration reduction grids.

The above description is only a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that various forms of the metal rubber-based pipeline vibration damping grids may be designed without inventive labor based on the teachings of the present invention, and all equivalent changes, modifications, substitutions and alterations made without departing from the spirit and scope of the present invention as defined by the appended claims should be construed as encompassing the present invention.

Claims

1. The utility model provides a pipeline damping framework based on metal rubber, includes square framework, its characterized in that, the octagon through-hole that has a plurality of array neatly to arrange in the square framework, all be provided with the elastic sheet on the rectangle plane of two liang of intervals one side in the octagon through-hole, the elastic sheet is protruding form, and one end links to each other with square framework, and the other end is the free end that can freely stretch out and draw back the activity when receiving the vibration oppression, the metal rubber with the lower surface contact of elastic sheet is installed on the rectangle plane of elastic sheet place in the octagon through-hole.

2. The metal rubber-based pipeline vibration damping grid as claimed in claim 1, wherein the elastic sheet is integrally formed with the square grid, and the elastic sheet is arranged obliquely and is consistent with the diagonal direction of the rectangular plane on which the elastic sheet is arranged.

3. The metal rubber-based pipeline vibration damping grid as claimed in claim 1 or 2, wherein the four rectangular planes containing the elastic sheets in the octagonal through holes are each countersunk, and the metal rubber is fixed on the rectangular planes through the countersunk holes and is positioned on the inner side of the elastic sheets.

4. The metal-rubber-based pipeline vibration damping grid as claimed in claim 3, wherein the counter bore is located at the center of the rectangular plane and below the middle of the elastic sheet, the counter bore is a cylindrical counter bore with a corrugated concave-convex structure on the inner wall surface, the lower end of the metal rubber is cylindrical and fastened with the counter bore, and the upper end of the metal rubber is spherical and contacts with the lower surface of the elastic sheet.

5. The metal rubber-based pipeline vibration damping grid according to claim 1, 2 or 4, wherein the square grid is provided with a groove on the four peripheral surfaces, the groove is provided with a mounting buckle hole for connecting with a mounting buckle, and the chamfered surfaces of the four corners of the square grid are provided with positioning holes.

6. The metal-rubber-based pipeline damping grid according to claim 5, further comprising cross connectors and T-connectors for combining several pipeline damping grids.

7. The metal rubber-based pipeline damping grid according to claim 6, wherein the cross connector comprises a quadrangular prism, positioning pins protruding outwards for matching with the positioning holes are arranged on the cylindrical surface of the quadrangular prism, wing plates for being placed in the grooves and matched with the grooves to form a cross shape are arranged on four corners of the quadrangular prism, and mounting buckles matched with the mounting buckle holes are arranged on two side surfaces of each wing plate; rectangular guard plates are arranged on two end faces of the quadrangular prism.

8. The metal rubber-based pipeline vibration damping grid as claimed in claim 6, wherein the T-shaped connector comprises an isosceles right triangular prism, positioning pins protruding outwards for matching with the positioning holes are arranged on two cylindrical surfaces of the waist of the triangular prism, wing plates for being placed into the grooves and matching with the grooves to form a T shape are arranged on three corners of the triangular prism, mounting buckles matched with the mounting buckle holes are arranged on two side surfaces of the wing plates located on the right angle of the triangular prism and on the side surfaces of the other two wing plates close to the right angle side of the triangular prism, and triangular guard plates are arranged on two end surfaces of the triangular prism.

9. A metal rubber based pipeline damping grid according to claim 7 or 8, wherein the grooves are elongate; the positioning hole is a rectangular counter bore; the installation buckle is in a barb shape, and the installation buckle hole comprises a barb cavity matched with the installation buckle.

10. The use method of the metal rubber-based pipeline vibration damping grillwork applied to the claims 6, 7 or 8 is characterized in that in operation, each pipeline is penetrated into the octagonal through hole of the square grillwork, and the four elastic sheets in the octagonal through hole suspend each thin branch hose in the center of the octagonal through hole in a separated mode, so that each pipeline is separated and positioned; when more square grids are needed, a plurality of damping grids are assembled and used through the cross connectors and the T-shaped connectors.