negative pressure valve 中文意思是什麼
negative pressure valve
解釋
負壓閥-
After simulating the model of water hydraulic valves, the velocity distribution, pressure distribution, energy distribution can be obtained and relations between the valve channel and the energy loss, the negative pressure distribution can be analyzed, which offers the theory foundation for designing water hydraulic valves with the high efficiency, low energy loss and low noise
通過對水壓閥模型的cfd穩態和瞬態解析，可以得到水壓閥內流場的速度分佈、壓力分佈及能量分佈，據此定性分析流道結構（速度、壓力、流動的分離與再附壁，旋渦的產生與消失等）與能量損失、負壓分佈等的關系，從而為設計出高效率、低能耗、低噪聲的水壓閥提供理論依據。 -
When install, first the two ellipse oval flange on positive - negative pressure measuring container of transmitter would be take off, then take three valve units install on transmitter, turn tighten four screws, final take ellipse oval flange solidly install on three valve units
安裝時選將變送器正負壓測量容室上的兩只橢圓形法蘭取下，然後將三閥組安裝于在變送器上，旋緊四個螺釘，最後將橢圓形法蘭牢固安裝在三閥組上。 -
In this way, supersonic fluid amplifier especially bistable valve with negative pressure switch is used in the rocket projectile thanks to its advantages of switching rapidly, the ability of low temperature air to control the high temperature gas and no moving parts in high temperature gas
超音速射流雙穩閥，特別是採用負壓切換的超音速射流雙穩閥因其具有切換快速、可用低溫氣流控制高溫燃氣和在高溫燃氣中無活動部件的優點而適用於火箭彈的姿態控制系統中。 -
Function of three valve units is take signal from lead pressure point introduce the positive - negative pressure measuring container of transmitter, to realize on or off between lead pressure point and measuring container, and on off between positive and negative pressure container, also can use as differential pressure balance check zero and when remove transmitter as cut - off valve
三閥組的作用是從引壓點將信號引入變送器的正負壓測量容室，實現引壓點與測量容室之間接通或斷開，以及正負壓測量容室之間接通或斷開，亦可作為差壓平衡檢測零點用和卸變送器時作截止閥用。 -
2 four hole diameter of valve : connect to side of instrument positive - negative pressure container 4 - 12
2閥體四孔孔徑:接儀表正負壓容室側: 4 - 12
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