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CN-224214911-U - Flange for chemical pipeline

CN224214911UCN 224214911 UCN224214911 UCN 224214911UCN-224214911-U

Abstract

The utility model discloses a flange for a chemical pipeline, which comprises a first chemical pipe and a second chemical pipe, wherein the end part of the first chemical pipe is fixedly connected with a sleeved butt joint pipe, and one end, close to the sleeved butt joint pipe, of the second chemical pipe is fixedly connected with a sealing plug joint pipe. The device adopts the structure, the connection and disassembly processes of the first chemical pipe and the second chemical pipe can be further optimized through the arrangement of the clamping mechanism, when the device is installed, after the sealing plug pipe is inserted into the sleeved butt pipe, the torsion spring pushes the mounting ring and the limiting lantern ring to rotate, so that the limiting lantern ring is sleeved on the bayonet lock to realize stable plug-in connection, when the device is disassembled, the adjusting pushing frame and the adjusting ring are twisted, the torsion spring is contracted to drive the limiting lantern ring to separate, in the installation process, the adjusting pushing frame compresses the torsion spring, the torsion spring is reset to limit again after the installation is completed, the whole operation only needs to adjust the pushing frame and the adjusting ring, so that the disassembly and assembly can be completed quickly, the maintenance efficiency is improved, and the connection stability is ensured through the cooperation of the limiting lantern ring and the bayonet lock.

Inventors

  • CAI DONGSEN
  • CAI JUNYU

Assignees

  • 无锡市俊誉法兰有限公司

Dates

Publication Date
20260508
Application Date
20250604

Claims (7)

  1. 1. The flange for the chemical pipeline is characterized by comprising a first chemical pipe (1) and a second chemical pipe (2), wherein the end part of the first chemical pipe (1) is fixedly connected with a sleeved butt joint pipe (3), one end, close to the sleeved butt joint pipe (3), of the second chemical pipe (2) is fixedly connected with a sealing butt joint pipe (4), the sealing butt joint pipe (4) is inserted into the sleeved butt joint pipe (3), the outer surface of the first chemical pipe (1) is fixedly connected with an elastic clamping mechanism (6), the first chemical pipe (1) is connected with the second chemical pipe (2) through the elastic clamping mechanism (6), and the outer surfaces of the first chemical pipe (1) and the second chemical pipe (2) are fixedly connected with a supporting and fixing mechanism (5); The elastic clamping mechanism (6) comprises an outer sleeve ring (61) and a butt joint ring (62), an elastic clamping group (63) is fixedly connected to the inner part of the outer sleeve ring (61), the outer sleeve ring (61) is fixedly connected to one end, close to the second chemical pipe (2), of the first chemical pipe (1), the butt joint ring (62) is fixedly connected to one end, close to the first chemical pipe (1), of the second chemical pipe (2), clamping pins (64) are fixedly connected to one side, close to the first chemical pipe (1), of the butt joint ring (62) in an equidistant annular arrangement mode, and the clamping pins (64) are clamped with the elastic clamping group (63).
  2. 2. The flange for chemical pipelines according to claim 1, wherein the elastic clamping set (63) comprises a torsion spring (631), the torsion spring (631) is fixedly connected to the inside of the outer sleeve ring (61), the outer end of the torsion spring (631) is fixedly connected with a mounting ring (632), the mounting ring (632) is rotatably connected to the inner end of the outer sleeve ring (61), the side, close to the abutting ring (62), of the mounting ring (632) is fixedly connected with limiting collars (633) in an equidistant annular arrangement, and the end of the clamping pin (64) is inserted into the inside of the limiting collars (633).
  3. 3. The flange for chemical pipelines according to claim 2, wherein the limiting collar (633) is integrally arranged in an arc shape, the bayonet lock (64) is integrally arranged in an arc shape, and the limiting collar (633) and the bayonet lock (64) are both arranged in concentric circles with the torsion spring (631).
  4. 4. The flange for chemical pipelines according to claim 3, wherein the mounting ring (632) is positioned on the outer surface of the outer collar (61) at equal intervals, and is fixedly connected with an adjusting pushing frame (634) in a circular arrangement, and the outer side of the adjusting pushing frame (634) is fixedly connected with an adjusting ring (635).
  5. 5. The flange for chemical pipelines according to claim 1, wherein the supporting and fixing mechanism (5) comprises an outer ring (51), the outer ring (51) is fixedly arranged on the outer surfaces of the first chemical pipeline (1) and the second chemical pipeline (2), a slip ring (52) is rotationally connected to the outer side of the outer ring (51), and a supporting and fixing assembly (53) is fixedly connected to the bottom of the slip ring (52).
  6. 6. The flange for chemical pipelines according to claim 5, wherein the supporting and fixing assembly (53) comprises a fixing block (531), the fixing block (531) is fixedly connected to the bottom of the slip ring (52), a sleeve frame (532) is fixedly arranged at the bottom of the fixing block (531), a supporting rod (533) is slidably connected to the inside of the sleeve frame (532), a mounting plate (534) is fixedly arranged at the bottom of the supporting rod (533), mounting holes (535) are formed in two ends of the mounting plate (534), the mounting holes (535) are arranged as countersunk holes, and mounting screws (536) are connected to the lower ends of the outer sides of the sleeve frame (532) in a threaded mode.
  7. 7. The flange for chemical pipelines as set forth in claim 6, wherein the mounting screw (536) is a hand screw, the outer sides of the struts (533) are provided with clamping holes (537) in a linear arrangement at equal intervals, and the end portions of the mounting screw (536) are inserted into the clamping holes (537).

Description

Flange for chemical pipeline Technical Field The utility model belongs to the technical field of chemical pipeline connection, and particularly relates to a flange for a chemical pipeline. Background The chemical pipe is used as a key component for fluid transportation in the chemical field, the performance and the connection mode of the chemical pipe are critical to the safety and the efficiency of chemical production, and the ultra-high molecular weight polyethylene is an ideal manufacturing material of the chemical pipe by virtue of the excellent comprehensive performance of the chemical pipe, and the chemical pipe is formed by polymerizing ethylene and butadiene monomers under the action of a catalyst, has the characteristics of wear resistance, low temperature resistance, corrosion resistance, self lubrication, excellent impact resistance and the like of thermoplastic engineering plastics with the average molecular weight of over 200 ten thousand, has wear resistance exceeding that of polytetrafluoroethylene, nylon, carbon steel and other materials, can stably work for a long time in an extreme temperature environment of-269 ℃ to +80 ℃, and is widely applied to chemical pipeline systems; in the actual use scene of chemical pipelines, the connection requirements among the pipelines are frequent, and the connection is usually realized by adopting a mode of matching a flange plate with bolts, however, the traditional bolt connection mode has obvious defects, the disassembly and assembly process is complex in operation, a great deal of physical effort is consumed by operators, the efficiency is low, and the requirements of quick installation and maintenance of chemical production are difficult to meet; In order to solve the problem of the traditional connection mode, chinese patent with the bulletin number of CN216479479U discloses a flange structure for chemical pipelines, the use amount of bolts is reduced through a first connection mechanism and a second connection mechanism, the installation convenience is improved to a certain extent, but the device still has a plurality of defects, firstly, the convenience of the whole structure of the device still has a lifting space, and basically still depends on auxiliary connection of bolts, and the device has limitations in the aspect of quick disassembly and assembly maintenance, secondly, the device lacks an effective supporting structure for the chemical pipelines, and in the use process, the chemical pipelines are extremely damaged and broken once being accidentally touched, thereby causing leakage of harmful chemical gases or liquid, seriously threatening production safety and environmental safety, so that the prior chemical pipeline flange connection device needs to be optimally designed to meet the development requirements of high efficiency and safety of the chemical industry. Disclosure of utility model Aiming at the problems in the background art, the utility model aims to provide a flange for a chemical pipeline, which aims to solve the problem that the flange is inconvenient and fast to assemble and disassemble during the application of the prior art. The technical aim of the utility model is realized by the following technical scheme: the flange for the chemical pipeline comprises a first chemical pipe and a second chemical pipe, wherein the end part of the first chemical pipe is fixedly connected with a sleeved butt joint pipe, the second chemical pipe is close to one end of the sleeved butt joint pipe and is fixedly connected with a sealed butt joint pipe, the sealed butt joint pipe is inserted into the sleeved butt joint pipe, the outer surface of the first chemical pipe is fixedly connected with an elastic clamping mechanism, the first chemical pipe is connected with the second chemical pipe through the elastic clamping mechanism, and the outer surfaces of the first chemical pipe and the second chemical pipe are fixedly connected with a supporting and fixing mechanism; The elastic clamping mechanism comprises an outer sleeve ring and a butt joint ring, an elastic clamping group is fixedly connected to the inner portion of the outer sleeve ring, the outer sleeve ring is fixedly connected to one end of a first chemical pipe, which is close to a second chemical pipe, the butt joint ring is fixedly connected to one end of the second chemical pipe, which is close to the first chemical pipe, the butt joint ring is fixedly connected with clamping pins in an annular arrangement at equal intervals, and the clamping pins are clamped with the elastic clamping group. Further, the elastic clamping group comprises a torsion spring, the torsion spring is fixedly connected to the inside of the outer sleeve ring, the outer end of the torsion spring is fixedly connected with a mounting ring, the mounting ring is rotationally connected to the inner end of the outer sleeve ring, one side, close to the butt joint ring, of the mounting ring is uniformly spaced and i