Flange for quickly and directionally connecting petrochemical pipelines

Abstract

The utility model discloses a flange for quick directional connection of petrochemical pipelines, which comprises a left flange plate, a bolt is sleeved in the left flange plate, one end of the bolt is connected with a nut through threads, and the left flange plate is driven to press a sealing ring on a right flange plate by rotating and screwing the bolt and the nut. By rotating and screwing the threaded sleeve and fastening the rust-proof sleeve to one end of the clamping sleeve bolt, the protective sleeve and the rust-proof sleeve can be conveniently and rapidly installed, rainwater erosion can be effectively blocked through the design of the protective sleeve and the rust-proof sleeve, and the situation that disassembly and assembly are affected due to rusting of the bolt and the nut is prevented; through the design of the left flange plate and the right flange plate, rotation adjustment of the left connecting pipe and the right connecting pipe can be facilitated, and butt joint of mounting holes and mounting bolts are facilitated; the bolt is inserted into the right fixing ring to drive the left fixing ring to press the sealing ring on the right fixing ring, so that the left fixing ring and the right fixing ring are conveniently and quickly butted and mounted, and the mounting efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to petrochemical pipeline device technical field, concretely is flange for quick directional connection petrochemical pipeline. BACKGROUND

[0002] Flange is a general term, usually refers to the periphery of a disc-like metal body open several fixed holes for connecting other things. Flange is widely used in the connection of industrial pipeline, because the appearance is strange, as long as it is called flange.

[0003] At present, the width of the annular groove is larger, which is convenient for introducing the radial positioning protrusion, and the radial positioning of the flange is carried out when the annular groove is narrower, the positional relationship between the directional protrusion and the positioning groove can determine the angular relationship between the two flanges, and the positional relationship of the bolts is determined, so that quick installation is realized.

[0004] For example, the quick directional connection petrochemical pipeline flange structure disclosed in the authorized announcement No. CN213576081U, including upper flange and lower flange, the upper flange and lower flange are provided with screw holes, characterized in that: the lower end face of the upper flange is uniformly provided with a plurality of radial positioning protrusions, and an annular groove is arranged on the upper end face of the lower flange, the radial positioning protrusion can rotate along the annular groove, the annular groove 5 is composed of a plurality of repeated grooves, the width of each section of the annular groove gradually decreases from both ends to the middle, and the radial positioning protrusion can pass through the narrowest part of the annular groove; a directional protrusion is further arranged on the upper flange, and a directional groove is arranged on the lower flange; when the radial positioning protrusion is located at the narrowest part of the corresponding section of the annular groove, the directional protrusion and the directional groove are matched, and the screw holes on the upper flange and the lower flange are also matched. However, such quick directional connection petrochemical pipeline flange structure, the bolts and nuts are exposed, and are easily rusted after being eroded by rainwater for a long time, which affects the later disassembly, and there is a gap between the upper flange and the lower flange, which lacks sealing elements and is easy to cause leakage of petrochemical products, thereby endangering the safety of the surrounding.

[0005] From the above-mentioned prior art document, it can be seen that the bolts and nuts are exposed, and are easily rusted after being eroded by rainwater for a long time, which affects the later disassembly, and there is a gap between the upper flange and the lower flange, which lacks sealing elements and is easy to cause leakage of petrochemical products, thereby endangering the safety of the surrounding, therefore, the prior art needs to be improved. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing flange for quick directional connection petrochemical pipeline, to solve the problem that the bolts and nuts are exposed, and are easily rusted after being eroded by rainwater for a long time, which affects the later disassembly, and there is a gap between the upper flange and the lower flange, which lacks sealing elements and is easy to cause leakage of petrochemical products, thereby endangering the safety of the surrounding.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: the flange for quick directional connection petrochemical pipeline, including left flange plate, the inside bushing of left flane plate is provided with bolt, one end of bolt is connected with nut through thread, one end of bolt is connected with threaded sleeve through thread, one end of threaded sleeve is fixedly welded with protective sleeve, the outside bushing of bolt is provided with right flange plate, the outside sleeve of one end of bolt is provided with rustproof sleeve, the inside bushing of left flange plate is provided with left fixed ring, one side of left fixed ring is fixedly welded with bolt, one end of bolt is inserted with right fixed ring, the one side of left fixed ring is pressed with sealing ring, one side of left fixed ring is fixedly welded with left connecting pipe, one side of right fixed ring is fixedly welded with right connecting pipe.

[0008] Preferably, one side of the right flange plate is in close contact with the rust-proof sleeve, one side of the left flange plate is in close contact with the sealing ring, by rotating the bolt and the nut, the left flange plate is pressed against the sealing ring on the right flange plate, facilitating the butt joint of the left fixed ring and the right fixed ring.

[0009] Preferably, one side of the left flange plate is in close contact with the protective sleeve, the inside of the sealing ring is bushed with the bolt, by rotating the threaded sleeve and tightly clamping the end of the bolt, the protective sleeve and the rust-proof sleeve are conveniently and quickly installed.

[0010] Preferably, one side of the left flange plate is in close contact with the nut, the rust-proof sleeve is made of rubber material, the design of the protective sleeve and the rust-proof sleeve can effectively block rainwater erosion and prevent the rusting of the bolt and the nut from affecting disassembly and assembly.

[0011] Preferably, one side of the right flange plate is in close contact with the sealing ring, the inside of the left flange plate and the right flange plate is provided with a mounting hole, the design of the left flange plate and the right flange plate can facilitate the rotation adjustment of the left connecting pipe and the right connecting pipe, so as to butt joint and install the bolt through the mounting hole.

[0012] Preferably, the inside of the sealing ring is bushed with the bolt, the inside of the left flange plate is bushed with the left connecting pipe, by inserting the bolt into the right fixed ring to drive the left fixed ring to press the sealing ring against the right fixed ring, the left fixed ring and the right fixed ring are conveniently and quickly butt jointed and installed, improving the installation efficiency.

[0013] Preferably, one side of the right fixed ring is in close contact with the sealing ring, the inside of the right flange plate is bushed with the right connecting pipe, the design of the sealing ring can effectively prevent the leakage of the gap between the left fixed ring and the right fixed ring, thereby endangering the safety of the surrounding.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1.The utility model discloses a rotating bolt and nut, drive left flange plate compression seal ring in right flange plate, the butt joint of left fixed ring and right fixed ring is convenient, through rotating the thread cover, and the rustproof cover fastening sleeve bolt one end is convenient and fast installation protective sheath and rustproof cover, the design of protective sheath and rustproof cover can effectively prevent rainwater erosion, prevent bolt and nut rust influence dismounting, the design of left flange plate and right flange plate can conveniently left connecting pipe and right connecting pipe rotation adjustment, so as to install hole butt joint installation bolt.

[0016] 2.The utility model discloses a bolt insertion right fixed ring drive left fixed ring compression seal ring in right fixed ring, the quick butt joint installation of left fixed ring and right fixed ring is convenient, improves installation efficiency, the design of seal ring can effectively prevent the leakage between left fixed ring and right fixed ring, thereby endangering the safety of surrounding. DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the right flange plate enlarged sectional view of the utility model;

[0019] Figure 3 It is the left flange plate enlarged perspective view of the utility model;

[0020] Figure 4 It is the left fixed ring enlarged perspective view of the utility model;

[0021] Figure 5 It is the protective sheath enlarged perspective sectional view of the utility model.

[0022] In the drawing: 1 left flange plate, 11 bolt, 12 nut, 13 thread cover, 14 protective sheath, 15 right flange plate, 16 rustproof cover, 2 left fixed ring, 21 bolt, 22 right fixed ring, 23 seal ring, 24 left connecting pipe, 25 right connecting pipe. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0024] Please refer to Figures 1-5The flange for quick orientation connection petrochemical pipeline illustrated in the drawing comprises a left flange plate 1, a bolt 11 sleeved in the inside of the left flange plate 1, a nut 12 threadedly connected to one end of the bolt 11, a threaded sleeve 13 threadedly connected to one end of the bolt 11, a protective sleeve 14 fixedly fused to one end of the threaded sleeve 13, a right flange plate 15 sleeved to the outside of the bolt 11, a rustproof sleeve 16 clamped to the outside of one end of the bolt 11, a left fixing ring 2 sleeved in the inside of the left flange plate 1, a bolt 21 fixedly welded to one side face of the left fixing ring 2, a right fixing ring 22 inserted to one end of the bolt 21, a sealing ring 23 pressed against one side face of the left fixing ring 2, a left connecting pipe 24 fixedly welded to one side of the left fixing ring 2, and a right connecting pipe 25 fixedly welded to one side of the right fixing ring 22.

[0025] In order to prevent the rusting of the bolt 11 and the nut 12 from affecting dismounting, the rustproof sleeve 16 is tightly attached to one side of the right flange plate 15, and the sealing ring 23 is pressed against one side face of the left flange plate 1. By rotating and tightening the bolt 11 and the nut 12, the left flange plate 1 is pressed against the sealing ring 23 on the right flange plate 15, facilitating the butt joint of the left fixing ring 2 and the right fixing ring 22. The protective sleeve 14 is tightly attached to one side of the left flange plate 1, and the bolt 11 is sleeved in the inside of the sealing ring 23. By rotating and tightening the threaded sleeve 13 and tightly clamping the bolt 11 at one end with the rustproof sleeve 16, the protective sleeve 14 and the rustproof sleeve 16 are conveniently and quickly installed. The nut 12 is tightly attached to one side of the left flange plate 1. The rustproof sleeve 16 is made of rubber material. The design of the protective sleeve 14 and the rustproof sleeve 16 can effectively block rainwater erosion and prevent the rusting of the bolt 11 and the nut 12 from affecting dismounting. The sealing ring 23 is pressed against one side face of the right flange plate 15. The inside of the left flange plate 1 and the right flange plate 15 is provided with an installation hole. The design of the left flange plate 1 and the right flange plate 15 can conveniently rotate and adjust the left connecting pipe 24 and the right connecting pipe 25, so as to butt joint and install the bolt 11 in the installation hole.

[0026] In order to prevent the gap leakage between the left fixing ring 2 and the right fixing ring 22, the bolt 21 is sleeved in the inside of the sealing ring 23. The left connecting pipe 24 is sleeved in the inside of the left flange plate 1. By inserting the bolt 21 into the right fixing ring 22 to press the left fixing ring 2 against the sealing ring 23 on the right fixing ring 22, the left fixing ring 2 and the right fixing ring 22 are conveniently and quickly butt jointed and installed, improving the installation efficiency. The sealing ring 23 is pressed against one side face of the right fixing ring 22. The right connecting pipe 25 is sleeved in the inside of the right flange plate 15. The design of the sealing ring 23 can effectively prevent the gap leakage between the left fixing ring 2 and the right fixing ring 22, thereby endangering the safety of the surrounding.

[0027] This quick-connecting flange for petrochemical pipelines uses a method of tightening the bolts 11 and nut 12 to press the sealing ring 23 onto the right flange 15, facilitating the connection of the left and right fixing rings 2 and 22. Tightening the threaded sleeve 13 and securing one end of the rust-proof sleeve 16 to the clamping bolt 11 facilitates the quick installation of the protective sleeve 14 and rust-proof sleeve 16. The design of the protective sleeve 14 and rust-proof sleeve 16 effectively blocks rainwater corrosion and prevents the bolts 11 and nut 12 from rusting and affecting disassembly and assembly. The design of the left and right flanges 1 and 15 allows for easy rotation and adjustment of the left and right connecting pipes 24 and 25 to align with the mounting holes for bolt 11 installation. Inserting the pin 21 into the right fixing ring 22 causes the left fixing ring 2 to press the sealing ring 23 onto the right fixing ring 22, facilitating the quick connection and installation of the left and right fixing rings 2 and improving installation efficiency. The design of the sealing ring 23 effectively prevents leakage between the left and right fixing rings 2 and 22, thus preventing potential safety hazards.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. Quickly orientated connection flange for petrochemical pipeline, including left flange plate (1), the inside of left flange plate (1) is sleeved with bolt (11), one end of bolt (11) is connected with nut (12) by thread, one end of bolt (11) is connected with threaded sleeve (13) by thread, it is characterized by: One end of the threaded sleeve (13) is fixedly welded with a protective sleeve (14), the outer side of the bolt (11) is sleeved with a right flange plate (15), the outer side of one end of the bolt (11) is sleeved with a rustproof sleeve (16), the inner side of the left flange plate (1) is sleeved with a left fixing ring (2), one side of the left fixing ring (2) is fixedly welded with a bolt (21), one end of the bolt (21) is inserted with a right fixing ring (22), one side of the left fixing ring (2) is pressed with a sealing ring (23), one side of the left fixing ring (2) is fixedly welded with a left connecting pipe (24), one side of the right fixing ring (22) is fixedly welded with a right connecting pipe (25).

2. The quick orienting connection flange for petrochemical piping of claim 1, wherein: One side of the right flange plate (15) is close to the rustproof sleeve (16), one side of the left flange plate (1) is pressed with the sealing ring (23).

3. The quick orienting connection flange for petrochemical piping of claim 1, wherein: One side of the left flange plate (1) is close to the protective sleeve (14), the inner side of the sealing ring (23) is sleeved with the bolt (11).

4. The quick orienting connection flange for petrochemical piping of claim 1, wherein: One side of the left flange plate (1) is close to the nut (12), the rustproof sleeve (16) is made of rubber material.

5. The quick orienting connection flange for petrochemical piping of claim 1, wherein: One side of the right flange plate (15) is pressed with the sealing ring (23), the inner sides of the left flange plate (1) and the right flange plate (15) are provided with mounting holes.

6. The quick orienting connection flange for petrochemical piping of claim 1, wherein: The inner side of the sealing ring (23) is sleeved with the bolt (21), the inner side of the left flange plate (1) is sleeved with the left connecting pipe (24).

7. The quick orienting connection flange for petrochemical piping of claim 1, wherein: One side of the right fixing ring (22) is pressed with the sealing ring (23), the inner side of the right flange plate (15) is sleeved with the right connecting pipe (25).

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