Combined mechanical three-way
Technical field
The present invention relates to a kind of mechanical three-way, especially a kind ofly be applicable to submarine pipeline stopping transportation or stop status maintenance operation not, and be applicable to the terrestrial pipeline stopping transportation or the combined mechanical three-way of stop status maintenance operation not under the unsuitable welding condition.
Background technique
In the pipeline maintenance operation, normally used threeway roughly includes two kinds of patterns: a kind of welding tee that is called, its upper and lower half-watt adopts welding to connect.There is following major defect in welding tee: 1, should not be used under water or the submarine pipeline maintenance, because of workpiece directly places water environment, between water and the electric arc without any isolation facility, the bubble that electric arc only relies on gas that welding rod produces in welding process and water vapor to form is protected, therefore under water poor welding quality, can not use easily; 2, because water has electric conductivity preferably, there is serious potential safety hazard in the underwater operation process; 3, for the pipeline of carrying inflammable and explosive medium, or wait to keep in repair near the occasion that flammable explosive gas or article are arranged the pipeline, welding tee all should not adopt.Another kind is commonly called as Three-way pipe hoop, though its upper and lower half-watt adopts Bolt Connection, because half-watt is not installed sealing down, during with the supporting use perforate of perforator, hole can only be on main pipe, left, and the hole that equates with the main pipe internal diameter can not be on main pipe, opened less than internal diameter of the pipeline.Moreover, this Three-way pipe hoop does not have anti-falling device, because the installation tilt error of installing perforator thereon or the vibrations in the perforator working procedure, particularly perforator is subjected to the effect of ocean current transverse force in the submarine pipeline maintenance, makes equipment such as perforator have defectives such as easy overturning in the course of the work.
The inventor for overcoming the above-mentioned defective that known welding tee and Three-way pipe hoop exist, through arduous research and development, develops combined mechanical three-way of the present invention according to for many years experience and knowledge finally.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of submarine pipeline stopping transportation or stop status maintenance operation not of being applicable to is provided, also is applicable to terrestrial pipeline stopping transportation or not the stop status maintenance operation and the combined mechanical three-way that can be used for opening the hole that equates with the main pipe internal diameter on main pipe and have anti-falling device under should not welding condition.
For this reason, the invention provides a kind of combined mechanical three-way, have last half-watt and following half-watt, described going up between half-watt, following half-watt by the link secure bond, be provided with two connecting ports of perforation along its axial direction, a wherein side of described upper and lower half-watt is provided with the third connecting mouth, it is characterized in that: along being respectively equipped with a pair of half-watt tapered plug in two connecting ports of described threeway axis setting, described half-watt tapered plug is fixedlyed connected with the both ends of the surface of upper and lower half-watt.
Aforesaid combined mechanical three-way, wherein, described each half-watt tapered plug all has a taper outer circumferential face and a zigzag fashion inner peripheral surface, and a pair of half-watt tapered plug is oppositely arranged and constitutes conical outer circumferential face, and the envelope surface of all tooth tops was a cylndrical surface in it was zigzag.
Aforesaid combined mechanical three-way wherein, offers the grooving of one or more on the sidewall of described half-watt tapered plug.
Aforesaid combined mechanical three-way, wherein, the sidewall circumferential surface of above-mentioned each half-watt tapered plug evenly offers the non-through grooving of 3-4 bar along the threeway axial direction.
Aforesaid combined mechanical three-way, wherein, described upward half-watt, following half-watt two ends are equipped with an inner conical surface that matches with the outer circumferential face of above-mentioned half-watt tapered plug.
Aforesaid combined mechanical three-way, wherein, the shaft axis of described third connecting mouth and the intersect vertical axis of mechanical three-way, and the coaxial ladder hole that connects with above-mentioned two connecting ports that is provided with in it.
Aforesaid combined mechanical three-way wherein, radially is respectively arranged with at least two seal grooves on the described fitting surface of going up half-watt and following half-watt, and the radial seal groove that is provided with on the upper and lower half-watt is oppositely arranged, and is embedded with Stamping Steel Ribbon in it.
Aforesaid combined mechanical three-way, wherein, described seal groove is provided with corresponding to the both sides of described third connecting mouth.
Aforesaid combined mechanical three-way, wherein, described going up on the half-watt fitting surface relative vertically with following half-watt both sides is relatively set with at least one axial seal groove respectively, and the axial seal groove of last half-watt both sides is oppositely arranged with the axial seal groove of following half-watt both sides, is embedded with Stamping Steel Ribbon in it.
Aforesaid combined mechanical three-way wherein, radially be respectively arranged with at least two seal grooves on the fitting surface of described upward half-watt and following half-watt, and the radial seal groove that is provided with on the upper and lower half-watt is oppositely arranged; Described going up on the half-watt fitting surface relative vertically with following half-watt both sides is relatively set with at least one axial seal groove respectively, the axial seal groove of last half-watt both sides is oppositely arranged with the axial seal groove of following half-watt both sides, is embedded with Stamping Steel Ribbon respectively in described axial seal groove and the radial seal groove.
Characteristics of the present invention and advantage are:
Combined mechanical three-way of the present invention has been avoided welding, thereby can be used for the submarine pipeline maintenance operation by adopting Bolt Connection half-watt up and down after upper and lower half-watt being filled the span of a man's arms on main pipe, also is suitable for the terrestrial pipeline maintenance operation under the unsuitable welding condition simultaneously.
Described combined mechanical three-way is provided with twice axial seal groove and radial seal groove on half-watt and the following half-watt on it respectively, and four axial seal bars and four apex sealing strips are embedded respectively in the axial seal groove and radial seal groove of upper and lower half-watt.After upper and lower half-watt connected with bolton, Stamping Steel Ribbon played the effective seal effect, and therefore, combined machine threeway sealing configuration of the present invention makes it can be used for maximumly on main pipe can opening the hole that equates with the main pipe internal diameter.
Combined mechanical three-way of the present invention, all there is an inner conical surface at half-watt and following half-watt two ends on it, and there are four half-watt tapered plugs at the mechanical three-way two ends, connect with last half-watt and following half-watt two ends with bolt respectively.Each half-watt tapered plug has the internal surface of a male cone (strobilus masculinus) and a band tooth, and male cone (strobilus masculinus) cooperates with the inner conical surface at last half-watt and following half-watt two ends respectively.When tightening the attachment bolt of half-watt tapered plug and upper and lower half-watt, the conical surface of half-watt tapered plug produces wedging power, make the tooth and the tightly interlock of main pipe surface of half-watt tapered plug internal surface, overcome the equipment such as perforator that are installed in the known configurations on third connecting hole defective such as overturning easily in the course of the work.
Description of drawings
Fig. 1 is the plan view of mechanical three-way of the present invention;
Fig. 2 is a mechanical three-way left view of the present invention;
Fig. 3 is the plan view of the partly cut-away of mechanical three-way of the present invention;
Fig. 4 is the sectional drawing along A-A among Fig. 1;
Fig. 5 is the main pseudosection of the half-watt tapered plug of mechanical three-way of the present invention;
Fig. 6 is the left view of the half-watt tapered plug of mechanical three-way of the present invention;
Fig. 7 is the plan view of the half-watt tapered plug of mechanical three-way of the present invention.
Embodiment
The present invention is further illustrated for following conjunction with figs. and specific embodiment.
Shown in Fig. 1 to 4, combined mechanical three-way of the present invention has last half-watt 1 and following half-watt 2, and described half-watt 1, the following half-watt 2 gone up for example is by bolt 4 upper and lower half-watt to be fastenedly connected to be integral by the link secure bond in the present invention.Be provided with two connecting ports 10,11 of perforation along the axial direction of upper and lower half-watt, a wherein side of described upper and lower half-watt is provided with third connecting mouth 9, wherein, along being respectively equipped with a pair of half-watt tapered plug 5 in two connecting ports 10,11 of described threeway axis setting, this half-watt tapered plug 5 is fixedlyed connected with the both ends of the surface of upper and lower half-watt, shown in Fig. 1,3, described half-watt tapered plug 5 is to be fixedly connected by bolt 6 with the two ends of upper and lower half-watt respectively by its end face.
Please cooperate referring to Fig. 5 to Fig. 7, described each half-watt tapered plug 5 all has a taper outer circumferential face 51 and a zigzag fashion inner peripheral surface 52, and a pair of half-watt tapered plug is oppositely arranged and constitutes conical outer circumferential face, and the envelope surface of all tooth tops was a cylndrical surface in it was zigzag.Offer the grooving 53 of one or more on the sidewall of described half-watt tapered plug 5.In the present embodiment, aspect the sidewall circumference of described half-watt tapered plug 5, evenly offer the non-through grooving of 3-4 bar 53 along the threeway axial direction.
Described upward half-watt 1, following half-watt 2 two ends are equipped with an inner conical surface 12,13 that matches with the outer circumferential face of above-mentioned half-watt tapered plug 5.
As shown in Figure 3, radially be respectively arranged with at least two seal grooves 15,15 on the fitting surface 14 of described upward half-watt 1 and following half-watt 2, sealing groove 15,15 is provided with corresponding to the both sides of described third connecting mouth 9, and the radial seal groove 15,15 that is provided with respectively on the upper and lower half-watt 1,2 is oppositely arranged, and is embedded with Stamping Steel Ribbon 8 in it.
In addition, in order to improve sealability, also can be relatively set with at least one axial seal groove 16,16 respectively on the fitting surface 14 that half-watt 1 is relative vertically with following half-watt 2 both sides on above-mentioned, the axial seal groove of last half-watt both sides is oppositely arranged with the axial seal groove of following half-watt both sides, is embedded with Stamping Steel Ribbon 7 in it.
Shown in Fig. 1,2,3,4, the shaft axis of described third connecting mouth 9 and the intersect vertical axis of mechanical three-way, and the coaxial ladder hole 91,92 that connects with above-mentioned two connecting ports that is provided with in it.That is, last half-watt 1 is provided with third connecting mouth 9, and offer two unequal through hole 91,92, two hole shaft axiss of diameter in the third connecting mouth 9 and overlap, and the intersect vertical axis of shaft axis and above-mentioned two connecting ports 10,11.
The assembling mode and the working principle of combined mechanical three-way of the present invention are: when pipeline is keeped in repair, four Stamping Steel Ribbons 8,7 are separately positioned in the radial seal groove 15 and axial seal groove 16 of upper and lower half-watt 1,2; The upper and lower half-watt 1,2 of above-mentioned preliminary assembling is filled the span of a man's arms on main pipe 3,, be fixed on the main pipe 3 with bolt 4 fastening connections.With four half-watt tapered plugs 5, form a pair ofly in twos, be arranged in two connecting ports 10,11 that combined mechanical three-way axially is provided with, and this two connecting port 10,11 has the inner conical surface 12,13 that matches with the outer circumferential face of described half-watt tapered plug 5.By bolt 6 described half-watt tapered plug is connected with following half-watt 2 two ends with last half-watt 1.When tightening the attachment bolt 6 of half-watt tapered plug 5 and upper and lower half-watt, the conical surface of half-watt tapered plug 5 produces wedging power, make the zigzag fashion inner peripheral surface 52 and the tightly interlock of main pipe 3 surfaces of half-watt tapered plug 5 internal surfaces, improved the join strength of combined mechanical three-way and pipeline 3, make equipment such as perforator can firmly be arranged on third connecting mouth 9 tops, improved the working stability of equipment, overcome in the known three-port structure, installing equipment thereon is easy defective such as overturning in the course of the work.In addition, by the Stamping Steel Ribbon 8,7 that is contained in the radial and axial seal groove 15,16 is set on the fitting surface 14 of described upper and lower half-watt 1,2, improved the sealability of threeway of the present invention, therefore, structure of the present invention can be used for opening the maximum hole that equates with the main pipe internal diameter on main pipe, thereby be convenient to the maintenance of pipeline, can improve operating efficiency effectively.
Only the above person only is specific embodiments of the invention, and when not limiting scope of the invention process with this, i.e. equivalent variations and the modification of doing according to the present patent application claim and description generally all should still belong in the scope that patent of the present invention contains.