Gear pump advantages and disadvantages introduced

Gear pumps are generally used in construction machinery and work environment is not high precision general machine tools, and the pressure is not too high and the flow of hydraulic systems. Gear pump advantages: 1) simple structure, better technology, lower cost. 2) compared with other types of pumps of the same flow, compact structure, small size. 3) Self-priming performance is good. Self-priming is reliably achieved at high and low speeds even under manual conditions. 4) speed range. Due to the pump drive parts and gears are basically balanced, at high speeds will not produce greater inertia. 5) The dirt in the oil has a bad influence on the work and is not easy to kill. Gear pump shortcomings: 1) lower working pressure. Gear pump gears, shafts and bearings on the pressure imbalance, radial load, limiting its pressure increase. Gear pump is mainly used in low pressure system. 2) lower volumetric efficiency. This is due to the large leakage of gear pump end face. 3) large flow pulsation, causing pressure pulsations, so that pipes, valves and other vibration, noise.

Decorative Window Film

Dimming glass can make an open space immediately disappear invisible, but also allows hidden scenes to emerge instantly, and this change can be achieved simply by pressing a switch.

This new building material, which sounds amazing, has actually been around for more than 20 years, but it is not known to the general public because it is expensive. At present, light-adjusting glass is mainly used in the field of tooling.

For example, the auditorium of the National Theater and the observation window of the rehearsal hall, Chang'an Club, and the mobile business hall all use this kind of dimming glass.

The smart glass has efficient openness and privacy, can be used in prison visit rooms, tion rooms, isolation rooms etc.

The bulletproof dimming glass partition for bank counter, can easily switch from transparent state for service time and the atomization state for oof time. Especially in normal temperature and humid environments, this situation is more likely to occur. Therefore, when selecting energizing power, it is necessary to comprehensively consider the requirements of light transmittance and service life to achieve a balanced state.

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