CN111981218A - Concentric reducer - Google Patents

Concentric reducer Download PDF

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Publication number
CN111981218A
CN111981218A CN202010828907.2A CN202010828907A CN111981218A CN 111981218 A CN111981218 A CN 111981218A CN 202010828907 A CN202010828907 A CN 202010828907A CN 111981218 A CN111981218 A CN 111981218A
Authority
CN
China
Prior art keywords
flange
small
diameter
threaded holes
bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010828907.2A
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Chinese (zh)
Inventor
金卫新
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangzhou Yuxin Pipe Industry Co ltd
Original Assignee
Yangzhou Yuxin Pipe Industry Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangzhou Yuxin Pipe Industry Co ltd filed Critical Yangzhou Yuxin Pipe Industry Co ltd
Priority to CN202010828907.2A priority Critical patent/CN111981218A/en
Publication of CN111981218A publication Critical patent/CN111981218A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Constructive types of pipe joints not provided for in groups F16L13/00 - F16L23/00 ; Details of pipe joints not otherwise provided for, e.g. electrically conducting or insulating means
    • F16L25/14—Joints for pipes of different diameters or cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/02—Flanged joints the flanges being connected by members tensioned axially
    • F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L23/00—Flanged joints
    • F16L23/16—Flanged joints characterised by the sealing means
    • F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The invention discloses a concentric reducer, which relates to the technical field of connecting pipelines and comprises an intermediate joint, wherein a filter screen is fixedly connected inside the intermediate joint, a small-diameter pipe is fixedly connected to the upper surface of the intermediate joint, a large-diameter pipe is fixedly connected to the lower surface of the intermediate joint, a plurality of small-diameter threaded holes are formed in the upper surface of the small-diameter pipe, and a second flange is arranged on the upper surface of the small-diameter pipe. According to the invention, the large-diameter threaded hole and the small-diameter threaded hole are respectively formed in the lower surface of the large-diameter pipe and the upper surface of the small-diameter pipe, the first flange threaded hole is formed in the upper surface of the first flange, the second flange threaded hole is formed in the upper surface of the second flange, the first flange threaded hole is in threaded connection with the large-diameter threaded hole through the first bolt, and the second flange threaded hole is in threaded connection with the small-diameter threaded hole through the second bolt, so that the large and small heads can be disassembled, and the construction efficiency of workers and people is improved.

Description

Concentric reducer
Technical Field
The invention relates to the technical field of connecting pipelines, in particular to a concentric reducer.
Background
The reducer is also called as a reducing pipe, and is a chemical pipe fitting which is mainly used for connecting two different pipe diameters; the existing reducing pipes popular in the market mainly comprise two types, namely concentric reducing pipes, eccentric reducing pipes and the like, the concentric reducing pipes are directly welded with steel pipes in a connecting mode, and if the concentric reducing pipes are damaged and need to be replaced and repaired or have blockages, the welded concentric reducing pipes are not convenient to disassemble, so that the construction is inconvenient.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a concentric reducer, which solves the problems that when the existing concentric reducer is damaged and needs to be replaced and repaired or has a blockage, the welded concentric reducer is inconvenient to disassemble and brings inconvenience to construction.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a concentric reducer comprises an intermediate joint, wherein a filter screen is fixedly connected inside the intermediate joint, a small-diameter pipe is fixedly connected to the upper surface of the intermediate joint, a large-diameter pipe is fixedly connected to the lower surface of the intermediate joint, a plurality of small-diameter threaded holes are formed in the upper surface of the small-diameter pipe, a second flange is arranged on the upper surface of the small-diameter pipe, second flange threaded holes are formed in the upper surface of the second flange corresponding to the small-diameter threaded holes, second bolts are connected with the inner threads of the second flange threaded holes in a threaded manner and are matched with the small-diameter threaded holes, the second flange is fixedly mounted on the small-diameter pipe through the second bolts, a plurality of large-diameter threaded holes are formed in the lower surface of the large-diameter pipe, a first flange is arranged on the lower surface of the large-diameter pipe, and first flange threaded holes are formed in the lower surface of the first flange corresponding to the large-diameter, the inner thread of the first flange threaded hole is connected with a first bolt, the first bolt is matched with the large-diameter threaded hole, and the first flange is fixedly installed on the large-diameter pipe through the first bolt.
Furthermore, a plurality of small-diameter threaded holes are distributed in an annular array and communicated with the second flange threaded holes, a plurality of large-diameter threaded holes are distributed in an annular array and communicated with the first flange threaded holes.
Furthermore, a plurality of first flange bolt holes have been seted up to the lower surface of first flange, first flange bolt hole is ring array and distributes, a plurality of second flange bolt holes have been seted up to the upper surface of second flange, and is a plurality of second flange bolt hole is ring array and distributes.
Furthermore, a second sealing ring is arranged between the upper surface of the small-diameter pipe and the lower surface of the second flange, and a first sealing ring is arranged between the lower surface of the large-diameter pipe and the upper surface of the first flange.
Further, sealing plugs are mounted on the lower surfaces of the first bolts and the upper surfaces of the second bolts.
(III) advantageous effects
The invention provides a concentric reducer, which has the following beneficial effects:
(1) this concentric reducer, set up a plurality of big footpath screw holes and path screw hole respectively through the lower surface at big footpath pipe and the upper surface of path pipe, the upper surface of first flange is seted up first flange screw hole and the upper surface of second flange and is seted up second flange screw hole, first flange screw hole passes through first bolt threaded connection with big footpath screw hole, second flange screw hole passes through second bolt threaded connection with the path screw hole, can dismantle reducer like this, worker's efficiency of construction has been improved.
(2) This concentric reducer, through the inside fixed connection filter screen at intermediate head, not only can filter the impurity in the medium and can carry out the deceleration to the medium in the major diameter pipe like this, reduce the erosive wear to the path inside pipe wall, improve reducer's life, through setting up first sealing washer and second sealing washer, can prevent that the medium from spilling from flange joint.
Drawings
FIG. 1 is a schematic perspective view of a concentric reducer according to the present invention;
FIG. 2 is a schematic view of the concentric reducer of the present invention;
FIG. 3 is a schematic cross-sectional view A-A of FIG. 2 illustrating concentric reducer heads according to the present invention;
FIG. 4 is a schematic bottom view of the concentric reducer of the present invention.
In the figure: 1. an intermediate joint; 2. a small diameter pipe; 3. a large diameter pipe; 4. a first flange; 5. a first flange bolt hole; 6. a first bolt; 7. a large-diameter threaded hole; 8. a second flange; 9. a second flange bolt hole; 10. a second bolt; 11. small diameter threaded holes; 12. a sealing plug; 13. and (4) a filter screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-4, the present invention provides a technical solution:
a concentric reducer comprises an intermediate joint 1, a filter screen 13 is fixedly connected inside the intermediate joint 1, the filter screen 13 is fixedly connected inside the intermediate joint 1, so that impurities in a medium can be filtered out, the speed of the medium in a large-diameter pipe 3 can be reduced, the scouring abrasion to the inner wall of the small-diameter pipe 2 is reduced, the service life of the reducer is prolonged, a small-diameter pipe 2 is fixedly connected to the upper surface of the intermediate joint 1, the large-diameter pipe 3 is fixedly connected to the lower surface of the intermediate joint 1, a plurality of small-diameter threaded holes 11 are formed in the upper surface of the small-diameter pipe 2, the small-diameter threaded holes 11 are distributed in an annular array mode, the small-diameter threaded holes 11 are communicated with second flange threaded holes, a second flange 8 is arranged on the upper surface of the small-diameter pipe 2, a plurality of second flange bolt holes 9 are formed in the upper surface of the second flange 8, and the plurality of second, a second flange threaded hole is formed in the position, corresponding to the small-diameter threaded hole 11, of the upper surface of the second flange 8, a second bolt 10 is connected to the inner thread of the second flange threaded hole, the second bolt 10 is matched with the small-diameter threaded hole 11, the second flange 8 is fixedly installed on the small-diameter pipe 2 through the second bolt 10, a second sealing ring is arranged between the upper surface of the small-diameter pipe 2 and the lower surface of the second flange 8, a plurality of large-diameter threaded holes 7 are formed in the lower surface of the large-diameter pipe 3, the large-diameter threaded holes 7 are distributed in an annular array, the large-diameter threaded holes 7 are communicated with the first flange threaded holes, a first flange 4 is arranged on the lower surface of the large-diameter pipe 3, a plurality of first flange bolt holes 5 are formed in the lower surface of the first flange 4, the plurality of first flange bolt holes 5 are distributed in the annular array, and a first flange threaded hole is formed in the, the inner thread of the first flange thread hole is connected with a first bolt 6, the first bolt 6 is matched with the large-diameter thread hole 7, the first flange 4 is fixedly arranged on the large-diameter pipe 3 through the first bolt 6, a first sealing ring is arranged between the lower surface of the large-diameter pipe 3 and the upper surface of the first flange 4, the leakage of a medium from a flange joint can be prevented through arranging the first sealing ring and the second sealing ring, the lower surfaces of a plurality of first bolts 6 and the upper surfaces of a plurality of second bolts 10 are respectively provided with a sealing plug 12, a plurality of large-diameter thread holes 7 and small-diameter thread holes 11 are respectively arranged on the lower surface of the large-diameter pipe 3 and the upper surface of the small-diameter pipe 2, the upper surface of the first flange 4 is provided with a first flange thread hole and the upper surface of the second flange 8 are provided with a second flange thread hole, the first flange thread hole is in threaded connection with the large-diameter thread hole 7 through the first bolt 6, the second flange thread hole is in threaded connection with, can dismantle big end and small end like this, improve worker's efficiency of construction.
The theory of operation, this concentric reducer, during the use, adjust big footpath screw hole 7 of 3 lower surfaces of big footpath pipe well with the first flange screw hole of first flange 4 upper surface, with the inside of first bolt 6 precession big footpath screw hole 7 from first flange screw hole, make big footpath pipe 3 and first flange 4 fixed mounting, adjust the path screw hole 11 of 2 upper surfaces of path pipe well with the second flange screw hole on the 8 lower surfaces of second flange again, with the inside of second bolt 10 precession path screw hole 11 from big two flange screw holes, make path pipe 2 and second flange 8 fixed mounting.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (5)

1. The concentric reducer comprises an intermediate joint (1) and is characterized in that a filter screen (13) is fixedly connected inside the intermediate joint (1), a small-diameter pipe (2) is fixedly connected to the upper surface of the intermediate joint (1), a large-diameter pipe (3) is fixedly connected to the lower surface of the intermediate joint (1), a plurality of small-diameter threaded holes (11) are formed in the upper surface of the small-diameter pipe (2), a second flange (8) is arranged on the upper surface of the small-diameter pipe (2), second flange threaded holes are formed in the positions, corresponding to the small-diameter threaded holes (11), of the upper surface of the second flange (8), second bolts (10) are connected to the inner threads of the second flange threaded holes in a threaded manner, the second bolts (10) are matched with the small-diameter threaded holes (11), and the second flange (8) is fixedly mounted on the small-diameter pipe (2) through the second bolts (10), a plurality of big footpath screw holes (7) have been seted up to the lower surface of big footpath pipe (3), the lower surface of big footpath pipe (3) is provided with first flange (4), first flange screw hole has been seted up with the corresponding position in big footpath screw hole (7) to the lower surface of first flange (4), the internal thread of first flange screw hole is connected with first bolt (6), first bolt (6) and big footpath screw hole (7) looks adaptation, first flange (4) are through first bolt (6) fixed mounting on big footpath pipe (3).
2. A concentric reducer according to claim 1,
the small-diameter threaded holes (11) are distributed in an annular array, the small-diameter threaded holes (11) are communicated with the second flange threaded holes, the large-diameter threaded holes (7) are distributed in an annular array, and the large-diameter threaded holes (7) are communicated with the first flange threaded holes.
3. A concentric reducer according to claim 1,
a plurality of first flange bolt holes (5) have been seted up to the lower surface of first flange (4), and is a plurality of first flange bolt hole (5) are annular array and distribute, a plurality of second flange bolt holes (9) have been seted up to the upper surface of second flange (8), and are a plurality of second flange bolt hole (9) are annular array and distribute.
4. A concentric reducer according to claim 1,
a second sealing ring is arranged between the upper surface of the small-diameter pipe (2) and the lower surface of the second flange (8), and a first sealing ring is arranged between the lower surface of the large-diameter pipe (3) and the upper surface of the first flange (4).
5. A concentric reducer according to claim 1,
sealing plugs (12) are mounted on the lower surfaces of the first bolts (6) and the upper surfaces of the second bolts (10).
CN202010828907.2A 2020-08-18 2020-08-18 Concentric reducer Pending CN111981218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010828907.2A CN111981218A (en) 2020-08-18 2020-08-18 Concentric reducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010828907.2A CN111981218A (en) 2020-08-18 2020-08-18 Concentric reducer

Publications (1)

Publication Number Publication Date
CN111981218A true CN111981218A (en) 2020-11-24

Family

ID=73435527

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010828907.2A Pending CN111981218A (en) 2020-08-18 2020-08-18 Concentric reducer

Country Status (1)

Country Link
CN (1) CN111981218A (en)

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