Ultrahigh-pressure pipeline system with combined type check valve

Abstract

The invention discloses an ultrahigh-pressure pipeline system with a combined type check valve. The ultrahigh-pressure pipeline system comprises a base. A liquid inlet main flow channel and a liquid outlet main flow channel are formed in the two sides of the base. A first convergence flow channel, a second convergence channel and a plurality of branches are arranged between the liquid inlet main flow channel and the liquid outlet main flow channel. The branches are provided with liquid inlets and liquid outlets. The liquid inlets are connected with the first convergence flow channel. The liquid outlets are connected with the second convergence channel. The first convergence flow channel is communicated with the liquid inlet main flow channel. The second convergence channel is communicated with the liquid outlet main flow channel, and the drift diameter of each branch is less than the drift diameter of the liquid inlet main flow channel and the drift diameter of the liquid outlet main flow channel. The ultrahigh-pressure pipeline system further comprises the combined type check valve. The combined type check valve comprises independent check valve bodies of which the number is equal to that of the branches, and each branch is internally provided with an independent check valve body. The base is further provided with a detection branch. The detection branch comprises a low-pressure branch and a high-pressure branch.

Description

technical field [0001] The invention relates to an ultra-high pressure pipeline system, which can reduce the loss of the reverse ultra-high pressure on the inner wall of the pipeline while ensuring a large liquid inlet flow rate by setting a combined check valve, thereby preventing liquid seepage. Leakage leads to the failure of the one-way valve and prolongs the service life of the entire piping system. Background technique [0002] In the existing ultra-high pressure pipeline system, how to increase the service life of the pipeline system under the condition of ultra-high pressure and large flow is a difficult problem. This is mainly because a large flow usually requires a large diameter, and a large diameter will cause the local pressure of the one-way valve to be too large to cause wear and deformation. For example, in the liquid inlet pipeline of internal high pressure forming, in order to improve the efficiency of liquid inlet, it is necessary to rapidly increase the ...

AI Technical Summary

Problems solved by technology

At this time, the diameter of the pipeline will be set relatively large, and the contact area between the steel ball at the end of the check valve and the inner wall of the pipeline will be relatively small. In addition, due to the large diameter, the sealing force of the steel ball will increase. When the pressure is too high, it will lead to excessive pressure on the sealing surface of the steel ball, which will aggravate wear or deformation, make the liquid prone to leakage and cause internal pressure release, which shortens the service life of the pipeline system and affects the internal high pressure forming efficiency and precision

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