Gas-liquid coupling type fluid pulsation vibration absorber
A technology of gas-liquid coupling and shock absorber, which is applied in the direction of fluid pressure actuators, liquid variable capacity machines, pulse balance, etc. Problems such as large volume and weight
Active Publication Date: 2020-12-04
BEIHANG UNIV +1
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Problems solved by technology
Moreover, there is liquid resistance in the pipeline system, and the flow pulsation will cause pressure pulsation
Pressure pulsation will cause fatigue damage to piping system and components, which will adversely affect the reliability of the system
[0003] Existing vibration-absorbing components, such as accumulators, etc., systems with a large range of pressure and temperature changes will cause the bladder of the accumulator to reach the limit position and lose its working ability, so it is not suitable for applications with wide temperature and wide pressure; and , the volume and weight of most accumulators are large, which is not conducive to installation in narrow spaces; accumulators are generally only for frequency bands within 100Hz to eliminate vibration, and the range is narrow, so they are not suitable for applications with a wide frequency range of vibration elimination
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[0023] The present disclosure will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific implementation manners described here are only used to explain relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only parts related to the present disclosure are shown in the drawings.
[0024] It should be noted that, in the case of no conflict, the implementation modes and the features in the implementation modes in the present disclosure can be combined with each other. The present disclosure will be described in detail below with reference to the drawings and embodiments.
[0025] The gas-liquid coupled fluid pulsation damper of the present disclosure allows the fluid in the main pipe to enter the first cavity through the opening of the base body, and the inside of the airbag is filled with gas, so the fluid pressure in the first cavity and the air ...
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The invention provides a gas-liquid coupling type fluid pulsation vibration absorber which comprises a base body, an air bag and a lining, wherein the base body is hollow and has an opening in one end, the air bag is located in the hollow part of the base body, a first cavity is formed between the air bag and the inner wall of the base body, and the lining is positioned in the air bag. According to the gas-liquid coupling type fluid pulsation vibration absorber, fluid in a main pipeline enters the first cavity through the opening of the base body, and the air bag is filled with gas, so that the air bag deforms under the action of the pressure difference between the fluid pressure in the first cavity and the air pressure in the air bag, flow pulsation is absorbed through expansion and contraction of the air bag, and the flow of oil in a hydraulic energy system is more stable. Effective reduction of fluid pulsation can be achieved within wide temperature, wide pressure and wide frequencyranges, and therefore the reliability of the hydraulic system is improved.
Description
technical field [0001] The present disclosure relates to the technical field of vibration elimination of fluid mechanical devices, in particular to a gas-liquid coupling type fluid pulsation vibration absorber. Background technique [0002] At present, most fluid transmission systems such as hydraulic systems use pumps as energy supply devices. Due to the structure and working principle of the pump itself, flow pulsation will inevitably occur. Moreover, there is liquid resistance in the pipeline system, and flow pulsation will cause pressure pulsation. Pressure pulsation will cause fatigue damage to the piping system and components, which will adversely affect the reliability of the system. [0003] Existing vibration-absorbing components, such as accumulators, etc., systems with a large range of pressure and temperature changes will cause the bladder of the accumulator to reach the limit position and lose its working ability, so it is not suitable for applications with wid...
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IPC IPC(8): F16L55/027F16L55/052
CPCF16L55/02781F16L55/052F16L55/054F15B2211/8613F15B1/165F15B2201/205F15B2201/3152F04B11/0016F15B2201/4053
Inventor 焦宗夏徐远志王任源
Owner BEIHANG UNIV