CN114131226B - Manufacturing method of tee joint - Google Patents
Manufacturing method of tee joint Download PDFInfo
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- CN114131226B CN114131226B CN202010924145.6A CN202010924145A CN114131226B CN 114131226 B CN114131226 B CN 114131226B CN 202010924145 A CN202010924145 A CN 202010924145A CN 114131226 B CN114131226 B CN 114131226B
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- sleeve
- pipe
- blank
- tee
- branch
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The application relates to a manufacturing method of a sleeve tee joint, and belongs to the field of pipeline equipment. The method comprises the following steps: acquiring a tee joint, a main pipe sleeve and a branch pipe sleeve, wherein the tee joint comprises a main pipe orifice and a branch pipe orifice; connecting a main pipe sleeve with a main pipe port, and connecting a branch pipe sleeve with a branch pipe port to obtain a sleeve tee joint; the main pipe sleeve is consistent with the first butt joint pipeline in specification, and the branch pipe sleeve is consistent with the second butt joint pipeline in specification; performing groove processing on a first pipe orifice of the main pipe sleeve; and carrying out groove processing on the first pipe orifice of the branch pipe sleeve. The tee joint is additionally provided with the main pipe sleeve and the branch pipe sleeve, wherein the main pipe sleeve and the first butt joint pipeline have the same specification, the bevel parameters of the pipe orifices of the main pipe sleeve and the first butt joint pipeline are the same, the branch pipe sleeve and the second butt joint pipeline have the same specification, the bevel parameters of the pipe orifices of the branch pipe sleeve and the second butt joint pipeline are the same, and the tee joint for the sleeve can improve welding efficiency and welding quality in the connection process of the tee joint for the main pipe sleeve and the first butt joint pipeline and the second butt joint pipeline.
Description
Technical Field
The application relates to the field of pipeline equipment, in particular to a manufacturing method of a sleeve tee joint.
Background
The tee joint is an important pipeline accessory in pipeline engineering construction and is mainly used for pipeline branching, turning, reducing and the like.
At present, tee joints for oil gas pipelines, chemical pipelines and the like are mainly manufactured by adopting methods of hot extrusion drawing, cold extrusion, welding and the like. The wall thickness of a main pipe and a branch pipe of the large-caliber thick-wall tee joint formed by extrusion is uniformly transited along the circumferential direction but is not equal, the cross sections of the pipe ends of the main pipe and the branch pipe of the tee joint are of non-standard round shape, the whole pipe diameter and the wall thickness of the tee joint are generally larger than those of a butt joint steel pipe, certain difficulty exists in welding and assembling the tee joint and the butt joint steel pipe, and the tee joint and the butt joint steel pipe are difficult to adopt a full-automatic welding method and the like when being connected, so that the problem of welding quality is easy to occur, and the design and the manufacture of the novel tee joint are very necessary.
Disclosure of Invention
The embodiment of the application provides a manufacturing method of a sleeve tee, which can improve the efficiency of the tee in the welding process with a butt joint pipeline and ensure the welding quality of the tee. The technical scheme is as follows:
there is provided a method of manufacturing a sleeve tee, the method comprising:
acquiring a tee joint, a main pipe sleeve and a branch pipe sleeve, wherein the tee joint comprises a main pipe orifice and a branch pipe orifice;
connecting the main pipe sleeve with the main pipe port, and connecting the branch pipe sleeve with the branch pipe port to obtain a sleeve tee joint;
the main pipe sleeve is consistent with the first butt joint pipeline in specification, and the branch pipe sleeve is consistent with the second butt joint pipeline in specification;
performing groove processing on a first pipe orifice of the main pipe sleeve to obtain a first groove pipe orifice, wherein the groove parameters of the first groove pipe orifice are the same as the groove parameters of the first butt joint pipeline;
and carrying out groove processing on the first pipe orifice of the branch pipe sleeve to obtain a second groove pipe orifice, wherein the groove parameters of the second groove pipe orifice are the same as the groove parameters of the second butt joint pipeline, and the groove parameters comprise groove form and size.
In an alternative embodiment, said connecting said main tube sleeve with said main tube port comprises:
the second pipe orifice of the main pipe sleeve is connected with the main pipe orifice in a welding connection mode;
the connecting the branch tube sleeve with the branch tube port comprises:
and the second pipe orifice of the branch pipe sleeve pipe is connected with the branch pipe orifice in a welding connection mode.
In an alternative embodiment, the length of the main tube is within a first predetermined length requirement;
the length of the branch tube sleeve is within a second preset length requirement range.
In an alternative embodiment, the specifications include at least one of steel pipe type, pipe grade, steel grade, pipe diameter, wall thickness, delivery status.
In an alternative embodiment, the acquisition tee includes:
acquiring a tee joint raw material;
preprocessing the tee joint raw material to obtain a tube blank;
performing hot extrusion drawing forming treatment on the tube blank to obtain a blank tee joint;
and groove processing is carried out on the main pipe orifice and the branch pipe orifice of the blank tee joint, and the blank tee joint is inspected to obtain the tee joint.
In an alternative embodiment, the acquiring a master tube sleeve includes:
acquiring a main tube sleeve raw material;
cutting and blanking the main tube raw material to obtain a blank main tube;
and carrying out groove processing on the blank main sleeve pipe, and checking the blank main sleeve pipe to obtain the main sleeve pipe.
In an alternative embodiment, the acquiring a branch vessel cuff includes:
acquiring a branch tube sleeve raw material;
cutting and blanking the raw material of the branch tube sleeve to obtain a blank branch tube sleeve;
and carrying out groove processing on the blank branch tube sleeve, and checking the blank branch tube sleeve to obtain the branch tube sleeve.
In an alternative embodiment, the resulting sleeve tee includes:
acquiring a blank sleeve tee joint, wherein the blank sleeve tee joint is obtained by welding and assembling the tee joint with a main pipe sleeve and a branch pipe sleeve;
performing a pressure test on the blank sleeve tee joint;
and (5) checking the blank sleeve tee joint to obtain the sleeve tee joint.
In an alternative embodiment, the pressure test on the blank sleeve tee includes:
sealing the pipe orifice of the blank sleeve tee joint;
connecting pressure-resistant test equipment to the blank sleeve tee joint, and performing pressure-resistant test on the blank sleeve tee joint under preset test parameters;
and determining the pressure resistance test result of the blank sleeve tee joint according to the pressure resistance performance of the blank sleeve tee joint.
In an alternative embodiment, the sealing treatment for the orifice of the blank sleeve tee comprises:
welding and sealing the pipe orifice of the blank sleeve tee by adopting at least one sealing material of a pipe cap, a sealing head and a blind plate;
or, adopting a detachable sealing device to mechanically seal the pipe orifice of the blank sleeve tee.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
the main pipe sleeve is welded at the main pipe opening of the tee joint, the branch pipe sleeve is welded at the branch pipe opening of the tee joint, and the sleeve tee joint is obtained, wherein the main pipe sleeve with the same specification and the same bevel parameter as the first butt joint pipeline is adopted, the branch pipe sleeve with the same specification and the same bevel parameter as the second butt joint pipeline is adopted, and the pipe opening of the sleeve tee joint and the butt joint pipeline have the same specification, and the bevel parameters are the same, so that the welding efficiency and the welding quality of the sleeve tee joint in the welding process of the sleeve tee joint and the butt joint pipeline can be improved, and the welding quality problem caused by different specifications between the existing tee joint without the sleeve and the butt joint pipeline can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a cross-sectional view of a tee provided in an exemplary embodiment of the present application;
FIG. 2 is a perspective view of a tee provided in an exemplary embodiment of the present application;
FIG. 3 is a flow chart of a method of manufacturing a tee according to an exemplary embodiment of the present application;
FIG. 4 is a flowchart of a method for obtaining a three-way cuff according to an exemplary embodiment of the present application;
FIG. 5 is a flow chart of a sub-step tee method for acquiring a tee in a tee acquisition method for a cuff in accordance with an exemplary embodiment of the present application;
FIG. 6 is a flowchart of a method for acquiring a master tube by a sub-step in a three-way acquisition method for a tube according to an exemplary embodiment of the present application;
FIG. 7 is a flowchart of a sub-step branch vessel cuff acquisition method provided by an exemplary embodiment of the present application;
FIG. 8 is a flowchart of a method for connecting a tee to a main pipe sleeve and a branch pipe sleeve in substeps in a method for acquiring a tee of a sleeve according to an exemplary embodiment of the present application;
fig. 9 is a flowchart of a pressure test method for a blank sleeve tee according to an exemplary embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
The embodiment of the application provides a manufacturing method of a sleeve tee joint, which is characterized in that the structure of the tee joint is schematically illustrated.
Fig. 1 is a cross-sectional view of a tee provided in an exemplary embodiment of the present application, as shown in fig. 1, the tee comprising: tee 101, main tube sleeve 102 and branch tube sleeve 103.
The tee 101 is a finished tee pipe fitting; or, the tee 101 is a tee pipe obtained by processing and inspecting a raw material.
The main tube sleeve 102 is a sleeve obtained by directly cutting a finished product butt joint pipeline; alternatively, the main tube 102 is manufactured and inspected using the same material as the main tube.
The branch tube sleeve 103 is a sleeve obtained by directly cutting from a finished product butt joint pipeline; alternatively, the same raw materials as the branch tube are used, and the branch tube sleeve 103 is obtained through processing and inspection.
Tee 101 includes a main nozzle 104 and a branch nozzle 105.
The main tube sleeve 102 is connected with the main tube orifice 104, the left and right structures of the tee joint 101 in fig. 1 are the main tube sleeve 102, and the branch tube sleeve 103 is connected with the branch tube orifice 105, so as to obtain a sleeve tee joint.
The specifications of the main pipe sleeve 102 and the first butt joint pipeline are consistent, and the first pipe orifice 107 of the main pipe sleeve 102 and the first butt joint pipeline have the same groove parameters.
The specifications of the branch pipe sleeve 103 and the second butt joint pipeline are consistent, and the groove parameters of the first pipe orifice 109 of the branch pipe sleeve 103 and the second butt joint pipeline are the same.
The second orifice 106 of the main tube sleeve 102 is connected with the main tube orifice 104 by welding, and the second orifice 108 of the branch tube sleeve 103 is connected with the branch tube orifice 105 by welding.
Wherein, the first pipe orifice 106 of the main pipe sleeve 102 and the main pipe orifice 104 are welded after being processed into the same groove; the first pipe orifice 108 of the branch pipe sleeve 103 and the branch pipe orifice 105 are welded after the same groove is formed.
The second pipe orifice 107 of the main pipe sleeve 102 is a first bevel pipe orifice subjected to beveling, and the second pipe orifice 109 of the branch 0 pipe sleeve 103 is a second bevel pipe orifice subjected to beveling.
The length of the main tube sleeve 102 is within a first preset length requirement and the length of the branch tube sleeve 103 is within a second preset length requirement.
The lower limit of the first preset length requirement range and the second preset length requirement range is 200mm, namely the lengths of the main pipe sleeve and the branch pipe sleeve are not smaller than 200mm, the upper limit can be limited by specific process requirements, and the upper limit of the first preset length requirement range and the second preset length requirement range is required to meet pipeline installation requirements, pipeline transportation requirements and the like.
The specifications of the pipeline comprise at least one of steel pipe type, pipeline grade, steel grade, pipe diameter, wall thickness and delivery state, and specific parameters of the specifications are recorded in a process manufacturing file.
Fig. 2 is a perspective view of a tee according to an exemplary embodiment of the present application, which has a structure corresponding to fig. 1 one by one, the tee comprising: tee 101, main tube sleeve 102 and branch tube sleeve 103; the tee 101 comprises a main pipe orifice 104 and a branch pipe orifice 105; the main pipe sleeve 102 is connected with the main pipe port 104, the left and right structures of the tee joint 101 in fig. 2 are the main pipe sleeve 102, and the branch pipe sleeve 103 is connected with the branch pipe port 105; the specification of the main pipe sleeve 102 is consistent with that of the first butt joint pipeline, and the form and the size of the groove of the first pipe orifice 107 of the main pipe sleeve 102 are the same as those of the groove of the first pipe orifice of the first butt joint pipeline; the specifications of the branch tube sleeve 103 and the second butt joint pipeline are consistent, and the form and the size of the mouth grooves of the first mouth 109 of the branch tube sleeve 103 and the second butt joint pipeline are the same.
In summary, in this embodiment, the main pipe sleeve is welded at the main pipe opening of the tee, the branch pipe sleeve is welded at the branch pipe opening of the tee, the main pipe sleeve with the same specification as the first butt joint pipe is adopted, the bevel form and the bevel size of the main pipe sleeve are the same as those of the first butt joint pipe, the bevel form and the bevel size of the branch pipe sleeve are the same as those of the second butt joint pipe, and the sleeve tee and the butt joint pipe have the same specification, the pipe opening bevel form and the bevel size, so that the welding efficiency and the welding quality of the tee in the welding process with the butt joint pipe can be improved, and the welding quality problem caused by different specifications between the tee without the sleeve and the butt joint pipe can be reduced.
The embodiment of the application provides a method for manufacturing a sleeve tee, as shown in fig. 3, which comprises the following steps:
step 301, obtaining a tee joint, a main pipe sleeve and a branch pipe sleeve, wherein the tee joint comprises a main pipe orifice and a branch pipe orifice.
Optionally, the tee joint, the main pipe sleeve and the branch pipe sleeve are finished pipe fittings; or is obtained by purchasing or manufacturing raw materials and processing and manufacturing the raw materials through related processes.
If the tee joint is a finished pipe fitting, the tee joint is not required to be checked to determine whether the index of the tee joint is qualified, if the tee joint is made of raw materials, an applicable hot extrusion drawing forming method and equipment are required to be selected according to factors such as the category of the raw materials of the tee joint, the steel grade, the wall thickness and the like, forming processing is carried out to obtain a blank tee joint, then groove processing is carried out on the blank tee joint, and visual appearance inspection, size and shape inspection and nondestructive detection are carried out on the processed blank tee joint to obtain the applicable tee joint.
The sleeve pipe is a pipe accessory material, the pipe end of a steel pipe manufactured by related technological requirements is used for being welded at the pipe orifice of a tee joint, and the specification of the sleeve pipe is determined by a pipeline to be connected with a target tee joint.
If the main pipe sleeve and the branch pipe sleeve are finished pipe fittings, the main pipe sleeve and the branch pipe sleeve can be obtained by intercepting and processing the same-specification pipelines with the butted pipelines, and if the main pipe sleeve and the branch pipe sleeve are made of raw materials, the main pipe sleeve and the branch pipe sleeve are required to be manufactured according to the manufacturing process of the butted steel pipes and the specifications of the steel pipes.
And 302, connecting a main pipe sleeve with a main pipe port, and connecting a branch pipe sleeve with a branch pipe port to obtain a sleeve tee joint.
The second pipe orifice of the main pipe sleeve is connected with the main pipe orifice of the tee joint through welding.
The second pipe orifice of the branch pipe sleeve is connected with the branch pipe orifice of the tee joint through welding.
The tee joint is connected with the main pipe sleeve and the branch pipe sleeve into a whole to obtain a sleeve tee joint.
The main pipe sleeve is consistent with the first butt joint pipeline in specification, and the branch pipe sleeve is consistent with the second butt joint pipeline in specification.
The first butt joint pipeline is a butt joint pipeline connected with a main pipe of the sleeve tee joint, and the second butt joint pipeline is a butt joint pipeline connected with a branch pipe of the sleeve tee joint.
The specifications include at least one of steel pipe type, pipe grade, steel grade, pipe diameter, wall thickness, delivery status.
Step 303, performing groove processing on the first pipe orifice of the main pipe sleeve to obtain a first groove pipe orifice, wherein the groove parameters of the first groove pipe orifice are the same as the groove parameters of the first butt joint pipeline.
And (3) chamfering the first pipe orifice of the main pipe sleeve by adopting a chamfering machine, wherein the chamfering angle and the blunt edge of the pipe end meet the technological requirements after chamfering.
The groove parameters include groove form and size.
Step 304, chamfering is carried out on the first pipe orifice of the branch pipe sleeve, a second bevel pipe orifice is obtained, and the bevel parameters of the second bevel pipe orifice are the same as those of the second butt joint pipe, wherein the bevel parameters comprise bevel form and size.
And (3) carrying out beveling on the first pipe orifice of the branch pipe sleeve by adopting a beveling machine, wherein the bevel angle and the blunt edge of the pipe end meet the technological requirements after the beveling is carried out.
The specifications of the main pipe sleeve in the sleeve tee joint are the same as those of the butt joint pipeline, the groove parameters of the pipe orifices of the main pipe sleeve and the butt joint pipeline are the same, and the groove parameters of the pipe orifices of the branch pipe sleeve and the butt joint pipeline are the same, so that the tee joint and the butt joint pipeline are suitable for welding and assembling with the same wall thickness and the same groove by adopting a full-automatic welding method and the like, the welding efficiency and the welding quality between the sleeve tee joint and the butt joint steel pipe are improved, and the welding quality problem caused by welding and assembling with different specifications or different wall thicknesses between the existing sleeve tee joint and the butt joint steel pipe is reduced.
With the above description, the three-way acquisition step according to the embodiment of the present application is described, and as shown in fig. 4, the obtaining of the sleeve three-way includes:
before the manufacturing of the tee joint, a correct and complete sleeve tee joint manufacturing process file is formulated according to design technical data and technical requirements of the tee joint, wherein the manufacturing process file comprises at least one of a manufacturing method and a manufacturing process of the sleeve tee joint, parameters of materials required by the manufacturing of the sleeve tee joint, a checking method and parameters in the manufacturing process of the sleeve tee joint and a sleeve tee joint pressure-resistant test method and parameters.
Step 401, a tee is obtained.
The tee joint may be a finished pipe fitting or a pipe fitting obtained by processing according to a raw material, and illustratively, the tee joint obtained by processing according to the raw material is taken as an example, as shown in fig. 5, the process of obtaining the tee joint includes:
step 4011, obtaining a tee raw material.
The tee joint raw material comprises at least one of a seamless steel pipe, a welded steel pipe, a steel plate and a tubular steel billet.
Step 4012, pre-treating the tee raw material to obtain a tube blank.
When the tee raw material is realized as a material in the form of a seamless steel pipe, a welded steel pipe or the like, the tee raw material is subjected to cutting treatment and/or welding treatment to obtain a pipe blank.
In one example, the cutting and blanking is performed by a flame cutting method, wherein the flame cutting method can be determined according to the outer diameter and the wall thickness of the three-way raw material, the cutting method comprises at least one of cutting by a cutting torch and cutting by a cutting machine, the flame cutting precision is ensured by virtue of the technological parameters, and the specific parameters are customized in a manufacturing technological file by a person skilled in the art.
When the tee raw material is realized as a plate-shaped raw material such as a steel plate, a tubular billet and the like, the tee raw material is pretreated by adopting at least one treatment mode of cutting treatment, winding drum treatment and welding treatment to obtain a tube blank.
In one example, a low alloy steel plate is selected as a raw material of the tee joint, the tee joint has good technological performance and good weldability, the tee joint is suitable for manufacturing the tee joint, the raw material steel plate is cut and blanked into a steel plate with a target size according to the blank size requirement recorded in a manufacturing technological document, a flame cutting method is adopted, a bevel machining is carried out on the steel plate by adopting a edge milling machine, the steel plate is coiled into a cylinder by adopting a plate coiling machine, a cylinder longitudinal seam is pre-welded in a spot welding mode by adopting a manual welding method, and a cylinder longitudinal seam is welded by adopting a submerged arc welding method, so that a tube blank required for manufacturing the tee joint is obtained.
And 4013, performing hot extrusion drawing forming treatment on the pipe blank to obtain the blank tee.
According to the factors of the type of the tee joint raw materials, the steel grade, the wall thickness and the like, a suitable hot extrusion drawing forming method and equipment are selected, and the specific method and equipment can be obtained from manufacturing process files.
Marking datum lines, cutting lines and the like on a blank tee body according to manufacturing process files and technical requirements, cutting redundant materials of a tee main pipe and redundant materials of tee branch pipes on a rotary platform by adopting a flame cutting method, checking the size and the shape of the blank tee cut by the redundant materials, rounding a main pipe orifice and a branch pipe orifice of the blank tee by adopting a rounding tool to achieve specified roundness, carrying out heat treatment on the blank tee by adopting a quenching and tempering combination method according to factors such as the category of raw materials of the tee, the steel grade, the wall thickness and the like, and cleaning oxide skin, rust, greasy dirt, foreign impurities and the like on the surface of the blank tee by adopting a dry spraying and power tool combination method, so that the surface quality of the blank tee meets the technical requirements of appearance inspection, nondestructive inspection and the like.
Step 4014, groove processing is carried out on the main pipe orifice and the branch pipe orifice of the blank tee joint, and the blank tee joint is inspected to obtain the tee joint.
And (3) adopting a beveling machine to carry out beveling on the main pipe orifice and the branch pipe orifice of the blank tee joint, wherein the bevel angle and the blunt edge of the pipe end meet the technological requirements after the beveling is carried out.
Under the condition of sufficient light, visual appearance inspection is carried out on the blank tee joint; using inspection tools such as a tape measure, a caliper gauge and an ultrasonic measuring instrument to perform size and shape inspection on the blank tee joint, wherein the inspection tools comprise at least one of wall thickness inspection, outer diameter inspection, ellipticity inspection, length inspection, bending inspection and pipe cross section shape inspection; and carrying out nondestructive detection on the blank tee joint by adopting an ultrasonic, ray, magnetic powder or penetration detection method and equipment. And (5) each technical index test meets the requirements of the manufacturing process file, and the blank tee joint is obtained as a tee joint.
Step 402, obtaining a main tube.
For the difference of the obtained main tube raw materials, in the embodiment of the present application, as shown in fig. 6, the obtaining of the main tube includes:
in step 4021, a main tube raw material is obtained.
The raw material of the main pipe sleeve is consistent with the specification of the first butt joint pipeline, and illustratively, according to the specification of the butt joint steel pipe of the main pipe orifice of the tee joint, a steel pipe with the same specification as the butt joint steel pipe is selected as the raw material of the main pipe sleeve, or a manufacturing process with the same manufacturing process as the butt joint steel pipe is selected, and a steel plate is adopted for cutting, winding drum, welding and other combination methods to obtain a pipe blank of the main pipe sleeve as the raw material of the main pipe sleeve.
And step 4022, cutting and blanking the main tube raw material to obtain the blank main tube.
Cutting and blanking the raw materials of the main tube sleeve by adopting a flame cutting method to prepare the blank main tube sleeve.
And step 4023, chamfering the pipe orifice of the blank main pipe sleeve, and checking the blank main pipe sleeve to obtain the main pipe sleeve.
And (3) chamfering the pipe orifice of the blank main pipe sleeve by adopting a chamfering machine.
The inspection process for the main tube is the same as the inspection process for the tee, and will not be described here.
Step 403, a branch tube sleeve is acquired.
For the difference in raw material of the obtained branch tube sleeve, which is schematically illustrated in the embodiment of the present application, as shown in fig. 7, the obtaining of the branch tube sleeve includes:
step 4031, obtaining a branch tube sleeve raw material.
The raw materials of the branch tube sleeve are consistent with the specifications of the second butt joint pipeline, illustratively, according to the specifications of the butt joint steel tubes of the branch tube ports of the tee joint, steel tubes with the same specifications as the butt joint steel tubes are selected as the raw materials of the branch tube sleeve, or manufacturing processes same as the butt joint steel tubes are selected, and a steel plate is adopted to carry out cutting, winding drum, welding and other combination methods to obtain a tube blank of the branch tube sleeve as the raw materials of the branch tube sleeve.
Step 4032, cutting and blanking the raw material of the branch tube sleeve to obtain the blank branch tube sleeve.
Cutting and blanking raw materials of the branch tube sleeve by adopting a flame cutting method to prepare the blank branch tube sleeve.
Step 4033, chamfering the orifice of the blank branch tube sleeve, and inspecting the blank branch tube sleeve to obtain the branch tube sleeve.
And (3) beveling the pipe orifice of the blank branch pipe sleeve by adopting a beveling machine.
The process of inspecting the branch tube sleeve is the same as the process of inspecting the tee joint described above, and will not be described here.
Illustratively, the steps 401, 402, and 403 are three steps executed in parallel.
And step 404, obtaining a blank sleeve tee joint.
In an embodiment of the present application, as shown in fig. 8, a blank sleeve tee is to be obtained comprising:
and 4041, welding and assembling the tee joint with the main tube sleeve and the branch tube sleeve to obtain a blank sleeve tee joint.
And manufacturing files according to the process, respectively welding and assembling a main pipe orifice and a main pipe sleeve of the tee joint, welding and assembling a branch pipe orifice and a branch pipe sleeve of the tee joint, and welding and assembling the tee joint and the branch pipe sleeve of the main pipe sleeve into a whole to manufacture the blank sleeve tee joint.
In one example, the blank sleeve tee has tubing welds, and the main and branch sleeves also have tubing welds, with the tubing welds of the two being offset from one another at the assembly interface, with a weld spacing of 150mm.
Step 4042: and performing a pressure resistance test on the blank sleeve tee joint, and determining the pressure resistance test result of the blank sleeve tee joint according to the pressure resistance performance of the blank sleeve tee joint.
Optionally, the pipe orifice of the blank sleeve tee is sealed by a hydraulic test material, pressure-resistant test equipment is connected to the blank sleeve tee, pressure-resistant tests are carried out on the blank sleeve tee under preset test parameters, the related preset test parameters include, but are not limited to, water pressure and air pressure of strength tests, water pressure and air pressure of tightness tests, after the hydraulic tests are finished, pressure is relieved, the hydraulic test equipment and instruments are removed, liquid in the blank sleeve tee is drained and blown dry, and the sealing material of the main pipe orifice and the branch pipe orifice of the blank sleeve tee is cut off by a flame cutting method.
Step 4043: and (3) beveling the pipe orifice of the blank sleeve tee joint, and checking the blank sleeve tee joint to obtain the sleeve tee joint.
And (3) beveling the main pipe orifice and the branch pipe orifice of the blank sleeve pipe tee joint by adopting a beveling machine, wherein the parameters of the bevel parameters of the main pipe orifice and the branch pipe orifice of the sleeve pipe tee joint are the same as those of the bevel parameters of the butt joint pipe orifice of the sleeve pipe tee joint, and after the beveling is finished, the length of the main pipe sleeve pipe is within a first preset length requirement range, and the length of the branch pipe sleeve pipe is within a second preset length requirement range.
The lower limit of the first preset length requirement range and the second preset length requirement range is 200mm, namely the lengths of the main pipe sleeve and the branch pipe sleeve are not smaller than 200mm, the upper limit can be limited by specific process requirements, but the theoretical upper limit is required to meet pipeline installation requirements, pipeline transportation requirements and the like.
The process of inspecting the three-way tube is the same as the process of inspecting the three-way tube, and will not be described here. And (5) each technical index test meets the requirements of the manufacturing process file, and acquiring the blank sleeve tee joint as a sleeve tee joint. Because the sleeve tee joint and the butt joint pipeline are in the same specification, and the bevel form and the size of the pipe orifice are the same, the welding efficiency and the welding quality of the sleeve tee joint in the welding process with the butt joint pipeline can be improved, and the welding quality problem caused by different specifications between the existing tee joint without the sleeve and the butt joint pipeline can be reduced.
With the above description taken in conjunction, a pressure-resistant test method for a raw sleeve tee according to an embodiment of the present application is described, as shown in fig. 9, including:
and 501, sealing the pipe orifice of the blank sleeve tee joint.
Welding and sealing the pipe orifice of the blank sleeve tee by adopting at least one sealing material of a pipe cap, a sealing head and a blind plate; or, the pipe orifice of the blank sleeve tee is mechanically sealed by adopting detachable sealing equipment.
The pipe cap, the sealing head and the blind plate are sealing materials for welding and sealing, the pipe cap is generally used for small-pipe-diameter pipelines with smaller pressure, the sealing head is generally used for large-pipe-diameter pipelines, the blind plate can be used for pipelines with higher pressure, and the blind plate is relatively easy to detach.
Step 502, connecting pressure-resistant testing equipment to the blank sleeve tee joint, and performing pressure-resistant test on the blank sleeve tee joint under preset testing parameters.
The pressure-proof test comprises at least one test method of a hydraulic test and a pneumatic test, and is used for checking whether the blank sleeve tee joint has penetration defects and whether the structural strength meets the requirements.
The pressure test is schematically carried out on the blank sleeve tee by adopting a hydraulic test method, hydraulic test equipment and instruments are tightly connected to the blank sleeve tee, under the conditions of specified test temperature, test pressure, pressurization speed, pressure transmission medium, dwell time and the like, the conditions can be obtained in a process manufacturing file or can be obtained by related published materials and the like, in one example, the blank sleeve tee is subjected to the hydraulic test, the pressure transmission medium adopts water, the pressure in the blank sleeve tee is slowly increased to the design pressure according to the process requirement, the pressure in the pipe is increased to the specified test pressure after no leakage is confirmed, the pressure in the pipe is kept within a first preset time, then the pressure in the pipe is reduced to a preset value, and then the pressure in the pipe is kept within a second preset time, and all welding joints and connecting parts are checked.
And step 503, determining the pressure resistance test result of the blank sleeve tee joint according to the pressure resistance performance of the blank sleeve tee joint.
The blank sleeve tee joint has no abnormal noise, no visible abnormal deformation and no leakage at welding seams and connecting parts in the test process, so that the blank sleeve tee joint can be determined to be qualified in pressure-resistant test, and the pressure-bearing capacity and the structural safety of the sleeve tee joint are ensured. The sleeve tee joint qualified in the pressure test has the same specification as the butt joint pipeline, and the bevel forms and the sizes of the pipe orifices of the sleeve tee joint and the butt joint pipeline are the same, so that the welding efficiency and the welding quality of the sleeve tee joint in the welding process of the sleeve tee joint and the butt joint pipeline can be improved, and the welding quality problem caused by different specifications between the existing tee joint without the sleeve and the butt joint pipeline can be reduced.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (6)
1. A method of manufacturing a cuff tee, the method comprising:
the method comprises the steps of obtaining a tee joint, a main pipe sleeve and a branch pipe sleeve, wherein the tee joint comprises a main pipe orifice and a branch pipe orifice, the main pipe sleeve is consistent with the specification of a first butt joint pipeline, and the main pipe sleeve is obtained by directly cutting from the first butt joint pipeline, or is obtained by processing and checking the same raw materials as the first butt joint pipeline; the branch pipe sleeve is in accordance with the specification of the second butt joint pipeline, is obtained by directly cutting from the second butt joint pipeline, or is obtained by processing and checking the same raw material as the second butt joint pipeline;
welding the main pipe sleeve with the main pipe opening, and welding the branch pipe sleeve with the branch pipe opening to obtain a blank sleeve tee joint;
welding and sealing the pipe orifice of the blank sleeve tee by adopting at least one sealing material of a pipe cap, a sealing head and a blind plate;
connecting pressure-resistant test equipment to a blank sleeve tee joint, and performing pressure-resistant test on the blank sleeve tee joint under preset test parameters, wherein the preset test parameters comprise water pressure and air pressure of an intensity test and water pressure and air pressure of a tightness test;
determining a pressure resistance test result of the blank sleeve tee according to the pressure resistance performance of the blank sleeve tee;
draining the liquid in the blank sleeve tee joint, drying, and cutting off sealing materials of a main pipe orifice and a branch pipe orifice of the blank sleeve tee joint by adopting a flame cutting method;
performing groove processing on a first pipe orifice of the main pipe sleeve to obtain a first groove pipe orifice, wherein the groove parameters of the first groove pipe orifice are the same as the groove parameters of the first butt joint pipeline;
and carrying out groove processing on the first pipe orifice of the branch pipe sleeve to obtain a second groove pipe orifice, wherein the groove parameters of the second groove pipe orifice are the same as the groove parameters of the second butt joint pipeline, and the groove parameters comprise groove form and size.
2. The method of claim 1, wherein the step of determining the position of the substrate comprises,
the length of the main tube sleeve is within a first preset length requirement range;
the length of the branch tube sleeve is within a second preset length requirement range.
3. The method of claim 1, wherein the specifications comprise at least one of a steel pipe type, a pipe grade, a steel grade, a pipe diameter, a wall thickness, a delivery status.
4. The method of claim 1, wherein the acquiring tee comprises:
acquiring a tee joint raw material;
preprocessing the tee joint raw material to obtain a tube blank;
performing hot extrusion drawing forming treatment on the tube blank to obtain a blank tee joint;
and groove processing is carried out on the main pipe orifice and the branch pipe orifice of the blank tee joint, and the blank tee joint is inspected to obtain the tee joint.
5. The method of claim 1, wherein the acquiring a main tube sleeve comprises:
acquiring a main tube sleeve raw material;
cutting and blanking the main tube raw material to obtain a blank main tube;
and carrying out groove processing on the blank main sleeve pipe, and checking the blank main sleeve pipe to obtain the main sleeve pipe.
6. The method of claim 1, wherein the acquiring a branch vessel cuff comprises:
acquiring a branch tube sleeve raw material;
cutting and blanking the raw material of the branch tube sleeve to obtain a blank branch tube sleeve;
and carrying out groove processing on the blank branch tube sleeve, and checking the blank branch tube sleeve to obtain the branch tube sleeve.
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| CN202010924145.6A CN114131226B (en) | 2020-09-04 | 2020-09-04 | Manufacturing method of tee joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010924145.6A CN114131226B (en) | 2020-09-04 | 2020-09-04 | Manufacturing method of tee joint |
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| CN114131226A CN114131226A (en) | 2022-03-04 |
| CN114131226B true CN114131226B (en) | 2023-08-22 |
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| WO2017004671A1 (en) * | 2015-07-03 | 2017-01-12 | Vinidex Pty Limited | A pipe tee for pressure pipe |
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| GB2088513A (en) * | 1980-11-27 | 1982-06-09 | Snam Progetti | Pipe for use as part of a pipeline |
| CN85108775A (en) * | 1985-11-29 | 1987-06-10 | 四川省工业设备安装公司 | Manufacturing process of hot extruded seamless T pipe connection and shaped device thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114131226A (en) | 2022-03-04 |
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