CN111448410A

CN111448410A - Gas flow divider

Info

Publication number: CN111448410A
Application number: CN201780094966.8A
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: WO2019056157A1

Abstract

A gas splitter, the apparatus comprising a vessel (10), a plurality of ball valves (60); the container and the valve branch are connected and communicated through plastic deformation of the buckling piece (30), sealing is reliable, and the product processing technology is simple.

Description

Gas flow divider

Technical Field

[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 mode of the prior patent can cause the wall of the container to be too thick, which results in the whole device being heavy, so that the thin-wall type fluid flow divider is invented. The fluid shunt disclosed by the Chinese patent CN104180115A is thin in container wall and light in weight, but the processing and manufacturing process is not good enough, in the device, inserting of the fixing pin inch must be carried out from one end inside the container, after inserting is finished, welding of the end cover of the container is carried out, the assembling process is slow in assembling speed, and finally, the welding is easy to destroy to cause sealing failure, and the yield is low.

Technical problem

[0003] The invention aims to overcome the defects of the prior art and provide a gas flow divider, which can realize firm connection and stable sealing by adopting a thin-wall container and buckling connection and is fast and convenient to process.

Solution to the problem

Technical solution

[0004] A gas splitter comprising a vessel, a plurality of ball valves, a plurality of seals; the container comprises at least one main fluid channel and also comprises a round hole which is arranged on the cylindrical wall of the container and is connected with the joint; each ball valve comprises a valve body, a spherical valve core, a first valve seat assembly, a second valve seat assembly, a buckling piece and a valve rod assembly, wherein the valve body is basically tubular, the buckling piece, the first valve seat assembly, the spherical valve core and the second valve seat assembly are sequentially installed inside the valve body, the valve rod assembly is connected with the spherical valve core from a leading-out hole of the valve body, an annular platform is arranged inside the valve body, the buckling piece is fixed in the valve seat by the first valve seat assembly, and a pair of sealing pairs are formed by the buckling piece, the spherical valve core, the first valve seat assembly and the second valve seat assembly and act on the spherical valve core, and the spherical valve core can rotate between the sealing pairs under the driving of the valve rod assembly to realize the on-; the buckling piece extends out from the first end of the valve body, the end face of the first end of the valve body is a plane, and an annular groove surrounding the buckling piece is formed in the end face; the fastener comprises a plastic deformation part, a thin-wall part, an outer edge part, a protrusion part and a central hole, wherein the central hole of the fastener penetrates through the plastic deformation 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 sealing piece and the circular hole of the container, under the action of external force in the axial direction and the opposite direction, the thin wall part is deformed and collapsed, and is bulged outwards in the radial direction of the thin wall part to form a bulge part, so that the lower edge of the outer edge part of the buckling piece is abutted against an annular platform in the valve body, the bulge part is abutted against the inner wall of the container surrounding the circular hole, the valve body and the container form axial clamping, and the sealing piece is sealed in the groove.

[0005] Further, the wall thickness of the thin wall part of the fastener is smaller than that of the plastic deformation part.

[0006] Further, the outer diameter of the thin wall part is the same as that of the plastic deformation part, and the diameter of the central hole before the plastic deformation of the thin wall part is larger than that of the plastic deformation part. With this structure, the thin wall portion is more likely to bulge radially outward to form a protrusion portion without collapsing radially inward and obstructing the central hole as a flow passage when the flow path is deformed.

[0007] Furthermore, in order to be convenient for inserting into the round hole for assembly, the front end of the plastic deformation part is in a furling shape.

[0008] 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.

[0009] Furthermore, in order to improve the friction force between the buckling piece and the valve body and prevent the valve body and the buckling piece from loosening, 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.

[0010] The gas splitter also includes a drain interface disposed on the vessel for purging.

[0011] Furthermore, the first valve seat assembly comprises a first locking piece and a first spherical pair, the first locking piece is screwed in the valve body and tightly presses the upper edge of the locking piece, and the first spherical pair is positioned between the spherical valve core and the first locking piece; the second valve seat component comprises a second locking piece and a second spherical pair, the second locking piece is screwed inside the valve body, and the second spherical pair is positioned between the spherical valve core and the second locking piece.

Advantageous effects of the invention

Advantageous effects

[0012] The valve and the container are sealed reliably in a sealing mode, and quick connection can be realized; in addition, the connection mode of the joint and the container adopts a mode of buckling in the container, and the buckling inches only need to be operated outside the complete container.

Brief description of the drawings

Drawings

[0013] FIG. 1 is a schematic view of a gas splitter;

[0014] FIG. 2 is an exploded view of the gas splitter;

[0015] FIG. 3 is a cross-sectional view of the ball valve;

[0016] FIG. 4 is an exploded view of the main components of the ball valve;

[0017] FIG. 5 is a cross-sectional view of the first type of fastener;

[0018] FIG. 6 is a cross-sectional view of the second type of fastener;

[0019] FIG. 7 is a schematic view of a valve branch installation 1;

[0020] FIG. 8 is a schematic illustration of valve branch installation 2;

[0021] FIG. 9 is a schematic illustration of valve branch installation 3;

[0022] FIG. 10 is a partial cross-sectional view of a gas splitter.

Best mode for carrying out the invention

[0023] 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

[0024] Fig. 1 to 10 are related drawings of the gas splitter. A gas splitter comprising a vessel 10, a plurality of ball valves, a plurality of seals; the container 10 comprises a cylindrical 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 for externally connecting a main pipeline, the rear section 13 is provided with a discharge interface 15, the cylindrical wall of the middle section 11 is provided with 6 circular holes 18 connected by connectors, the ball valves control the on-off of branches, each ball valve comprises a valve body, a spherical valve core, a first valve seat assembly, a second valve seat assembly, a buckling assembly and a valve rod assembly, the valve body is basically tubular, the buckling assembly, the first valve seat assembly, the spherical valve core and the second valve seat assembly are sequentially arranged in the valve body, the valve rod assembly is connected with the spherical valve core from a lead-out hole of the valve body, an annular platform is arranged in the valve body, the buckling assembly is fixed in the valve seat by the first valve seat assembly, a pair of sealing pairs is formed by the first valve seat assembly and the second valve seat assembly, the spherical valve core acts on the spherical valve core, The valve is turned between the sealing pairs to realize the on-off of the valve; the buckling piece extends out from the first end of the valve body, and the end surface of the first end of the valve body is a plane

The end surface is provided with an annular groove surrounding the fastener; the fastener 30 comprises a plastic deformation 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 plastic deformation part 33, the diameter of the central hole before the plastic deformation of the thin wall part 32 is larger than that of the female thread part, and the wall thickness of the thin wall part 32 is smaller than that of the plastic deformation part 3₃Wall thickness; 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 plastic deformation part is in a furled shape, the central hole of the fastener 30 penetrates through the plastic deformation part 33, the thin wall part 32 and the outer edge part 31, the plastic deformation part 33 and the thin wall part 32 of the fastener 30 sequentially penetrate through the sealing element 40 and the circular hole 18 of the container, under the action of external force in the axial direction and the opposite direction, the thin wall part 32 is plastically deformed and collapsed and bulges outwards 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 in the valve body, and the protrusion part 322 is abutted against the inner wall of the container surrounding, the snap 30 also plastically deforms to press the wall of the container, so that the outer wall of the container 10 fits over the first end surface 23 of the valve body and seals the seal 40 in the recess 26.

Fig. 7-10 illustrate a gas manifold valve leg installation that requires a clamping device, the mandrel, whose body can pass through the flow passage of the ball valve of fig. 3 and has a streamlined enlarged portion 51, where the body of the mandrel 50 can pass through the entire valve leg flow passage, but the enlarged portion 51 can pass through areas other than the fastener female threads 332. Installing an inch, firstly, enabling the main body of the core shaft 50 to penetrate through a flow channel of the whole ball valve from the end of the buckling part 30, then enabling the expansion part 51 and the buckling part 30 to penetrate through the sealing part 40 and the hole 18, pushing the force F1 against the door 60, extracting the core shaft 50 by using F2 with the inch, transmitting the force to the upper edge 312 of the buckling part through the ball valve 60, forcibly extruding the force and the expansion part 51 of the inch into the plastic deformation part 33 of the buckling part, enabling the buckling part 30 to be compressed axially, enabling the thin-wall part 32 to bulge outwards in the radial direction to form a protrusion part 322, pushing the protrusion part 322 against the inner wall of the container 10 along with the gradual increase of the forces Fl and F2, pressing the container to be attached to the end surface 23 of the joint 20 along with the continuous increase of the forces Fl and F2, and enabling the expansion part 51 to damage the female thread 332 of the plastic, Squeezing is smooth, and finally the expansion part 51 is drawn away from the valve branch. The installation mode can cause permanent damage to the female thread of the buckling piece, but can not cause negative surface influence on the connection strength; the female screw is smoothly extruded, and the inner diameter of the plastic deformation part 33 is enlarged, thereby improving the fluid flow capacity.

Fig. 6 shows another construction of fastener, such fastener 31 'differs from fastener 30 of fig. 5 in that the plastic deformation portion 33' does not include threads therein, but rather a plurality of annular grooves 332', the annular grooves 332' having a plastic deformation destructive force relative to the female threads 332 that is easily controlled and adjusted, and the annular grooves are not prone to localized shedding, chipping, and contamination of the gas diverter.

Claims

Claims

The gas splitter of claim 1, wherein: comprises a container, a plurality of ball valves and a plurality of sealing members; the container comprises at least one main fluid channel and also comprises a round hole which is arranged on the cylindrical wall of the container and connected with the joint; each ball valve comprises a valve body, a spherical valve core, a first valve seat assembly, a second valve seat assembly, a buckling piece and a valve rod assembly, the valve body is basically tubular, the buckling piece, the first valve seat assembly, the spherical valve core and the second valve seat assembly are sequentially installed inside the valve body, the valve rod assembly is connected with the spherical valve core from a leading-out hole of the valve body, an annular platform is arranged inside the valve body, the buckling piece is fixed in the valve seat by the first valve seat assembly, and a pair of sealing pairs are formed by the buckling piece, the spherical valve core, the first valve seat assembly and the second valve seat assembly and act on the spherical valve core, and the spherical valve core can rotate between the sealing pairs under the driving of the valve rod assembly to realize the on-; the buckling piece extends out of the first end of the valve body, the end face of the first end of the valve body is a plane, and an annular groove surrounding the buckling piece is formed in the end face; the fastener comprises a plastic deformation part, a thin-wall part, an outer edge part, a protrusion part and a central hole, wherein the central hole of the fastener penetrates through the plastic deformation 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 sealing piece and the circular hole of the container, 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 protruding part, so that the lower edge of the outer edge part of the buckling piece is abutted against an annular platform in the valve body, the protruding part is abutted against the inner wall of the container surrounding the circular hole, the valve body and the container are axially clamped, and the sealing piece is sealed in the groove.

The gas splitter according to claim 1, wherein: the wall thickness of the fastener thin wall portion is smaller than that of the plastic deformation portion.

The gas splitter according to claim 1, wherein: the outer diameter of the thin wall part is the same as that of the plastic part, and the diameter of the central hole before the plastic deformation of the thin wall part is larger than that of the plastic part.

The gas splitter according to claim 1, wherein: the front end of the plastic deformation part of the buckling piece is furled.

The gas splitter according to claim 1, wherein: the outer wall of the thin wall part is provided with a grain or a bulge.

The gas splitter according to claim 6, 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 gas splitter according to claim 1, 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 gas splitter according to claim 1, wherein: the gas splitter further includes a drain interface disposed on the vessel for purging.

The gas splitter according to claim 1, wherein: the plastic deformation portion has a female thread that has been plastically deformed.

The gas splitter according to claim 1, wherein: the plastic deformation portion has a plurality of annular grooves that have been plastically deformed.