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CN-224229523-U - Elbow pipe fitting assembly capable of effectively reducing impact force of water flow

CN224229523UCN 224229523 UCN224229523 UCN 224229523UCN-224229523-U

Abstract

The utility model relates to the technical field of elbow pipe fittings, in particular to an elbow pipe fitting component capable of effectively reducing water flow impact force, which comprises a main elbow pipe, wherein an impact-resistant mechanism is arranged in the main elbow pipe and comprises a first pressure-reducing arc plate fixedly connected to the inside of a turning part of the main elbow pipe, a second pressure-reducing arc plate is arranged below the first pressure-reducing arc plate, and a third pressure-reducing arc plate is arranged below the second pressure-reducing arc plate. According to the utility model, through the cooperation of the main elbow and the impact-resistant mechanism, the momentum gradient release is realized through the gradual decrease of the cooperation distance between the first decompression arc plate, the second decompression arc plate and the third decompression arc plate, the diversion trench induces micro vortex, the boundary layer is reduced, the streamline is optimized through the asymmetric wing profile design of the first decompression arc plate, the second decompression arc plate and the third decompression arc plate, the flow separation of the fixed diversion plate under variable flow is avoided, and cavitation bubbles are destroyed by the first decompression trench, the second decompression trench and the third decompression trench in a grading manner.

Inventors

  • Ye Xiangke

Assignees

  • 温州优昌管业科技有限公司

Dates

Publication Date
20260512
Application Date
20250630

Claims (6)

  1. 1. The elbow pipe fitting assembly capable of effectively reducing water flow impact force comprises a main elbow pipe (1) and is characterized in that an impact mechanism (2) is arranged in the main elbow pipe (1), the impact mechanism (2) comprises a first decompression arc plate (201) fixedly connected to the inside of a turning part of the main elbow pipe (1), a second decompression arc plate (202) is arranged below the first decompression arc plate (201), a third decompression arc plate (203) is arranged below the second decompression arc plate (202), the volumes of the first decompression arc plate (201), the second decompression arc plate (202) and the third decompression arc plate (203) are sequentially increased, the second decompression arc plate (202) and the third decompression arc plate (203) are fixedly connected to the inner side wall of the main elbow pipe (1), the blade spacing between the first decompression arc plate (201) and the second decompression arc plate (202), the second decompression arc plate (202) and the third decompression arc plate (203) is decreased along the flow direction, the first decompression arc plate (201), the second decompression arc plate (202) and the third decompression arc plate (203) are provided with a plurality of decompression arc grooves (203) and a plurality of front decompression arc plates (203), and a plurality of rear decompression arc plates (203) are arranged on the front edge of the first decompression arc plate (202) and the third decompression arc plate (203).
  2. 2. The elbow pipe assembly for effectively reducing water flow impact force according to claim 1, wherein a plurality of groups of first decompression grooves (205) are formed in the water inlet end of the main elbow pipe (1), and a plurality of groups of second decompression grooves (206) are formed below the first decompression grooves (205).
  3. 3. The elbow pipe assembly for effectively reducing water flow impact force according to claim 2, wherein a plurality of groups of third decompression grooves (207) are arranged below the plurality of groups of second decompression grooves (206), and the second decompression grooves (206) and the third decompression grooves (207) are respectively arranged on the inner side wall of the main elbow pipe (1).
  4. 4. The elbow pipe assembly for effectively reducing water flow impact force according to claim 2, wherein the depths of the first decompression groove (205), the second decompression groove (206) and the third decompression groove (207) are sequentially enlarged, and the outer side wall of the main elbow pipe (1) is sleeved with a mounting ring (3).
  5. 5. The elbow pipe assembly for effectively reducing water flow impact force according to claim 4, wherein a plurality of groups of reinforcing grids (4) are fixedly connected inside the mounting ring (3), and the reinforcing grids (4) are honeycomb-shaped.
  6. 6. An elbow pipe assembly effective in reducing water flow impact force according to claim 5, wherein the interior of the reinforcing grid (4) is filled with a buffer filler (5), and an elastic filler (6) is filled between the reinforcing grid (4) and the reinforcing grid (4).

Description

Elbow pipe fitting assembly capable of effectively reducing impact force of water flow Technical Field The utility model relates to the technical field of elbow pipe fittings, in particular to an elbow pipe fitting assembly capable of effectively reducing water flow impact force. Background In industrial piping systems, elbows are a critical component in redirecting fluids, which have long faced a series of problems caused by excessive water flow impingement forces. The abrupt change of the flow field in the traditional 90-degree elbow can cause dynamic pressure impact which is 4-6 times as high as that of a straight pipe section, so that not only mechanical hidden dangers such as pipeline vibration and loosening of flange connectors are caused, but also obvious energy loss (the pressure loss coefficient is more than 0.9) can be generated. Particularly in a high-pressure conveying system, cavitation induced by water flow impact can accelerate the degradation of pipe wall materials, and the service life of equipment is greatly shortened. With the development of the pipeline system to high pressure and large scale, the traditional structure exposes the technical bottleneck that the flow guide component with fixed geometric parameters cannot adapt to the variable working condition requirement, and the performance is rapidly deteriorated when the flow rate exceeds the design range by 30 percent. Accordingly, there is a need for an elbow fitting assembly that effectively reduces the impact of water flow. Disclosure of utility model The utility model aims to provide an elbow pipe fitting assembly capable of effectively reducing the impact force of water flow, and impact graded dissipation is realized through the cooperation of a main elbow pipe and an impact resistance mechanism, so that the problem that a flow guide component with fixed geometric parameters cannot adapt to the requirement of a variable working condition in the prior art, and the performance is rapidly deteriorated when the flow rate exceeds the design range by 30% is solved. In order to achieve the aim, the elbow pipe fitting assembly capable of effectively reducing the impact force of water flow comprises a main elbow pipe, an impact mechanism is arranged in the main elbow pipe and comprises a first decompression arc plate fixedly connected to the inside of a turning part of the main elbow pipe, a second decompression arc plate is arranged below the first decompression arc plate, a third decompression arc plate is arranged below the second decompression arc plate, the volumes of the first decompression arc plate, the second decompression arc plate and the third decompression arc plate are sequentially increased, the second decompression arc plate and the third decompression arc plate are fixedly connected to the inner side wall of the main elbow pipe, the blade intervals of the first decompression arc plate and the second decompression arc plate, the second decompression arc plate and the third decompression arc plate are gradually reduced along the flow direction, the front edges of the first decompression arc plate, the second decompression arc plate and the third decompression arc plate are thick, the rear edges of the first decompression arc plate, the second decompression arc plate and the third decompression arc plate are thin, the surfaces of the front edges of the first decompression arc plate, the second decompression arc plate and the third decompression arc plate are provided with a plurality of flow grooves, and the first decompression arc plates and the third decompression arc plates are matched with the third decompression arc plates, and the flow grooves are released through the first decompression arc plates and the third arc plates. Preferably, the inside of the water inlet end of the main elbow is provided with a plurality of groups of first decompression grooves, a plurality of groups of second decompression grooves are arranged below the first decompression grooves, and cavitation bubbles are primarily destroyed through the second generation matching of the first decompression grooves and the second decompression grooves. Preferably, a plurality of groups of third decompression grooves are arranged below the plurality of groups of second decompression grooves, the second decompression grooves and the third decompression grooves are all formed in the inner side wall of the main elbow, and decompression is further achieved through the third decompression grooves. Preferably, the depths of the first decompression groove, the second decompression groove and the third decompression groove are sequentially enlarged, the outer side wall of the main elbow is sleeved with a mounting ring, and the main elbow is protected through the mounting ring. Preferably, the inside fixedly connected with of collar is strengthened the check in a plurality of groups, strengthen the check and be cellular, utilize to strengthen the inside of collar.