CN111448415A

CN111448415A - Fluid shunting device

Info

Publication number: CN111448415A
Application number: CN201780094979.5A
Authority: CN
Inventors: 陈保同
Original assignee: Dongguan Curiosity Intelligent Technology Co ltd
Current assignee: Dongguan Curiosity Intelligent Technology Co ltd
Priority date: 2017-09-19
Filing date: 2017-09-19
Publication date: 2020-07-24
Also published as: WO2019056146A1

Abstract

A fluid diversion apparatus comprising a vessel (10) and a plurality of branch line connection means; the branch pipeline connecting device comprises a buckling piece (30), a connector (20) and a sheet-shaped annular sealing piece (40), wherein a guide groove (323) is formed in a thin wall portion (32) of the buckling piece (30); the fastener (30) is axially compressed, and the connector (20) and the container (10) are connected into a whole after the fastener (30) is deformed. The connection between the branch pipeline connecting device and the container is reliable in sealing, and the product processing technology is simple.

Description

Fluid shunting device

Fluid flow divider

[0001] The present invention relates to the field of fluid connections, and in particular to a connection device for distributing fluid from a main line to a branch line.

Background

[0002] The gas and liquid conveying pipeline is widely applied to the industrial fields of petroleum, chemical industry and the like. In production application, a plurality of branch pipelines are often required to be connected with fluid in a main pipeline or a container for distributing the fluid, so as to meet industrial requirements and achieve the purposes of sample detection, fluid performance index testing, circulating heat dissipation and the like. The air source distributor is widely applied in the industrial field, and Chinese patent CN102788246A discloses an air source distributor which is an intermediate bridge formed by connecting a starting instrument and an air main pipe which are installed in a centralized manner and can conveniently control the on-off of each pipeline. Chinese patent CN104180115A discloses that the connection method of the prior patent can cause the container wall to be too thick, which results in the whole device being heavy, so as to improve the thin-wall type fluid diversion device. The fluid shunting device disclosed in the Chinese patent CN104180115A is thin in container wall, light in weight, but poor in machining and manufacturing process, in the device, inserting of a fixing pin inch must be performed from one end inside the container, and after inserting, welding of a container end cover is performed.

Technical problem

[0003] The invention aims to overcome the defects of the prior art and provide a fluid flow distribution device which can realize firm connection and stable sealing by adopting a thin-wall container and buckling connection and is quick to process.

Solution to the problem

Technical solution

[0004] A fluid diversion apparatus comprising a container and a plurality of branch line connection means; the container comprises a cylindrical wall and at least one fluid main channel, the cylindrical wall is provided with a plurality of planes formed by plastic deformation, and each plane is provided with a circular hole assembled with a plurality of branch pipeline connecting devices; the branch pipeline connecting device comprises a joint, a buckling piece and a sheet-shaped annular sealing piece; the joint is roughly in a round pipe shape and is provided with a through central hole, a first end is provided with a female thread used for connecting external equipment or a pipeline, the female thread forms a central hole, the central hole axially penetrates to a second end of the joint along the joint, the diameter of the central hole at the second end is smaller than that of the female thread, so that the central hole forms an annular platform close to the second end, and an annular platform protruding from the end face is arranged on the end face of the second end of the joint; the fastener comprises a female thread part, a thin-wall part, an outer edge part, a protrusion part and a central hole, wherein a guide groove is arranged on the inner wall of the thin-wall part, the groove surrounds the central hole of the fastener of the thin-wall part, and the central hole of the fastener penetrates through the female thread part, the thin-wall part and the outer edge part; the female thread part and the thin wall part of the buckling piece sequentially penetrate through the connector, the sealing piece and the container round hole, under the action of external force in the axial direction and the opposite direction, the thin wall part is plastically deformed and collapsed and is radially and outwards bulged towards the thin wall part to form a bulge part, the lower edge of the outer edge part of the buckling piece is abutted against an annular platform of the connector, the bulge part is abutted against the inner wall of the container surrounding the round hole, the axial clamping of the connector and the plane of the container is realized, the sealing piece is clamped between the second end face and the outer wall of the thin wall part, and the annular platform can effectively enhance the sealing effect.

[0005] Further, the guide groove is located near the female screw portion; the guide groove is preferably continuous, annular

(ii) a The cross section of the guide groove is preferably curved.

[0006] Further, the fastener thin-wall portion has a wall thickness less than a wall thickness of the female portion.

[0007] Further, the outer diameter of the thin wall portion is the same as that of the female screw portion, and the diameter of the central hole before the thin wall portion is plastically deformed is larger than that of the female screw portion. With this structure, the thin wall portion is more likely to bulge radially outward to form a protrusion portion in the plastic deformation, and is not likely to collapse radially inward to obstruct the central hole as the flow channel.

[0008] Furthermore, the front end of the female thread part is in a furling shape in order to facilitate the assembly of the inserted joint and the round hole.

[0009] Furthermore, in order to improve the friction force between the buckling piece and the inner wall of the container and prevent the buckling piece from loosening axially, the outer wall of the thin wall part is provided with grains or bulges so as to increase the friction force between the protrusion part and the inner part of the container.

[0010] Furthermore, in order to improve the friction force between the buckling piece and the connector and prevent the connector and the buckling piece from being loosened axially, the lower edge of the outer edge part is provided with grains or bulges, and the annular platform is also provided with the grains or the bulges.

[0011] The fluid diversion device also includes a drain interface disposed on the container for purging.

Advantageous effects of the invention

Advantageous effects

[0012] The branch pipeline connecting device and the container are sealed reliably in a sealing mode, and the processing technology is simple; in addition, the branch pipeline connecting device and the container are connected in a buckling mode inside the container, and the buckling mode only needs to be operated outside the complete container; the bow I guide groove arranged on the thin wall part can lead the whole thin wall part to be radially outwards bulged to form a protruding part, so that inward collapse is avoided, and the plastic deformation consistency is ensured. Brief description of the drawings

Drawings

[0013] FIG. 1 is a block diagram of a fluid diversion apparatus;

[0014] FIG. 2 is an exploded view of the fluid diversion apparatus;

[0015] FIG. 3 is an axial cross-sectional view of the fastener;

[0016] FIG. 4 is an axial cross-sectional view of the fitting;

[0017] FIG. 5 is a schematic view of a clamping device;

[0018] FIG. 6 is a schematic view of the fastening device after it has been screwed together with the fasteners;

[0019] FIG. 7 is a schematic view of the clamping device in cooperation with a fastener, a header, and a sealer;

[0020] FIG. 8 is a view of the clamping device pre-compressed against the fastener;

[0021] FIG. 9 is a view of the clamping device in an initial compressed state relative to the fastener;

[0022] FIG. 10 is an enlarged view at A of FIG. 9;

[0023] FIG. 11 is a view showing a state in which the clamping apparatus completes the compression of the fastener;

[0024] fig. 12 is a partial cross-sectional view of a fluid diversion apparatus.

Best mode for carrying out the invention

[0025] For the purpose of facilitating an understanding of the present invention, a detailed description of specific embodiments and assembly procedures is provided below in connection with the accompanying drawings.

Modes for carrying out the invention

[0026] Referring to fig. 1, 2, 3, 4, 12, a fluid diversion apparatus comprises a vessel 10 and a plurality of branch line connections; the container 10 comprises a round through middle section 11, a furled front section 12 and a furled rear section 13, wherein the front section 12 and the rear section 13 are connected into a whole through a welding seam 16 and a welding seam 17 to form a container with a cavity 19; the front section 12 is provided with a main fluid channel 14, the rear section 13 is provided with a discharge port 15, the cylindrical wall of the middle section 11 is provided with 6 planes formed by stamping plastic deformation or stretching plastic deformation, each plane is provided with a circular hole 18 for assembling with a branch pipeline connecting device, and each branch pipeline connecting device comprises a connector 20, a buckling piece 30 and a sheet-shaped annular sealing piece 40. The coupling 20 is generally tubular in shape and has a central bore therethrough, the first end 21 has a female thread 22 for connection to an external device or pipe, the female thread defining a central bore extending axially through the coupling to a second end 29 of the coupling, the central bore having a diameter at the second end 29 which is less than the diameter of the female thread, i.e. at 25 which is less than the diameter at 28, such that the central bore forms an annular land 24 adjacent the second end 29 and is provided with a thread or protrusion on the annular land 24, the end face 23 of the second end of the coupling being planar and the end face 23 being provided with an annular land 26 protruding from the end face 23. The fastener 30 comprises a female thread part 33, a thin wall part 32, an outer edge part 31, a protrusion part 322 and a central hole, the outer diameter of the thin wall part 32 is the same as that of the female thread part 33, the diameter of the central hole before the thin wall part 32 is plastically deformed is larger than that of the female thread part, the wall thickness of the thin wall part 32 is smaller than that of the female thread part 33, a guide groove 323 is arranged on one side, close to the female thread part 33, of the inner wall 322 of the thin wall part 32, the guide groove 323 is a continuous annular groove, the guide groove surrounds the central hole of the thin wall part, and the section of the guide groove 323 is arc; the outer wall of the thin wall part 32 is provided with a wire drawing thread 321 to improve the friction force between the fastener and the inner wall of the container, the lower edge 311 of the outer edge part 31 is provided with a thread to improve the friction force between the fastener and the connector, the front end 333 of the female thread part is folded, and the central hole of the fastener 30 penetrates through the female thread part 33, the thin wall part 32 and the outer edge part 31; the female thread part 33 and the thin wall part 32 of the fastener 30 sequentially pass through the connector 20, the sealing element 40 and the container round hole 18, under the action of external force in the axial direction and the opposite direction, the thin wall part 32 is deformed and collapsed, and bulge outward in the radial direction of the thin-wall part to form a protrusion part 322, so that the lower edge 311 of the outer edge part 31 of the fastener is abutted against the annular platform 24 of the connector, the protrusion part 322 is abutted against the inner wall of the container surrounding the circular hole 18, the connector 20 and the container plane 112 form axial clamping, the fastener 30 deforms in a plastic mode to extrude the inner wall of the container, but the plane 112 of the middle section 11 of the container cannot deform, the container plane 112 is attached to the second end surface 23 of the connector, the sealing element 40 is clamped between the end surface 23 and the outer wall of the thin-wall part 32, and the annular platform 26 can effectively enhance the sealing effect.

Fig. 6-12 illustrate the installation of a branch line of a fluid diversion apparatus, fig. 5 is a schematic view of a clamping device, and the specific installation method of the branch line is as follows: screwing the male thread end 521 of the mandrel 52 of the clamping device 50 with the female thread 332 of the female thread part of the fastener, screwing the male thread end and the female thread end of the fastener towards the direction shown in fig. 6, sequentially passing the furled front end 333 of the fastener through the joint 20, the sealing element 40 and the circular hole 18, enabling the sleeve end 511 to abut against the upper edge 312 of the fastener, then applying force Fl on the sleeve 51 and force F2 on the mandrel 52 to axially compress the fastener, wherein the thin-wall part 32 first starts to form a bulge 324 radially outwards at the guide groove 323, as the axial compression force increases, the bulge 324 pulls the rest of the thin-wall part to continue bulging outwards to form a protrusion 322, as the force further increases, the protrusion 322 abuts against the inner wall of the container 10 and presses the inner wall of the container, so that the plane 112 of the middle section 11 abuts against the end surface 23 of the joint 20, finally, mandrel 52 and female portion 33 are rotated to complete installation of a branch line as shown in fig. 12. The remaining branch lines are installed in the same manner as above. The pre-machining of a flat surface on the cylindrical wall of the container provides a more desirable sealing effect than if the surface were not pre-machined on the cylindrical wall of the container, and also ensures the consistency of the orientation of the plurality of joints.

Experiments prove that the guide groove 323 is more effective when arranged on the inner wall than the outer wall; the arc-shaped cross section ensures that the guide groove 323 is not broken during deformation, and the outwardly bulging protrusion 322 is more regular in shape and consistent in clamping force. The continuous, annular configuration of the guide groove 323 ensures consistent flow and grip of the raised protrusion 322.

Claims

Claims

Fluid diverging device, characterized by: comprises a container and a plurality of branch pipeline connecting devices; the container comprises a cylindrical wall and at least one fluid main channel, the cylindrical wall is provided with a plurality of planes formed by plastic deformation, and each plane is provided with a circular hole assembled with a plurality of branch pipeline connecting devices; the branch pipeline connecting device comprises a joint, a buckling piece and a sheet-shaped annular sealing piece; the joint is in a circular tube shape and is provided with a through central hole, the first end is provided with a female thread used for connecting external equipment or pipelines, the central hole axially penetrates to the second end of the joint along the joint, the diameter of the central hole at the second end is smaller than that of the female thread, so that the central hole forms an annular platform close to the second end, and an annular platform protruding from the end face is arranged on the end face of the second end of the joint; the fastener comprises a female thread part, a thin-wall part, an outer edge part, a protrusion part and a central hole, wherein a guide groove surrounding the central hole is formed in the inner wall of the thin-wall part, and the central hole of the fastener penetrates through the female thread part, the thin-wall part and the outer edge part; the female thread part and the thin wall part of the buckling piece sequentially penetrate through the connector, the sealing piece and the container round hole, under the action of external force in the axial direction and the opposite direction, the thin wall part is plastically deformed and collapsed and swells towards the radial outer part of the thin wall part to form a protruding part, the lower edge of the outer edge part of the buckling piece is abutted against the annular platform of the connector, the protruding part is abutted against the inner wall of the container surrounding the round hole, the axial clamping of the connector and the container is realized, the sealing piece is clamped between the end face of the second end and the outer wall of the thin wall part, and the annular platform can effectively enhance the sealing effect.

A fluid diversion apparatus as claimed in claim 1 wherein: a fluid diverter device according to claim 2 wherein the guide groove is annular, wherein: the guide groove is continuous.

A fluid diversion apparatus as claimed in claim 2 wherein: the guide groove is located near the female screw portion.

A fluid diversion apparatus as claimed in claim 2 wherein: the section of the guide groove is arc-shaped.

A fluid diversion apparatus as claimed in claim 1 wherein: the fastener thin-wall portion has a wall thickness less than the wall thickness of the female portion.

A fluid diversion apparatus as claimed in claim 1 wherein: the outer diameter of the thin wall part is the same as that of the female thread part, and the diameter of the central hole before the thin wall part is plastically deformed is larger than that of the female thread part.

The fluid diversion apparatus of claim 8, wherein: the front end of the female thread part of the fastener is furled.

The fluid diversion apparatus of claim 1, wherein: the outer wall of the thin wall part is provided with grains or bulges.

The fluid diversion apparatus according to claim 9, wherein: the lower edge of the outer edge part is provided with grains or bulges, and the annular platform is also provided with the grains or the bulges.

The fluid diversion apparatus of claim 11, wherein: the lower edge of the outer edge part is provided with grains or bulges, and the annular platform is also provided with the grains or the bulges.

The fluid diversion apparatus according to claim 1, wherein: the fluid diversion device also includes a drain interface disposed on the container for purging.