由于这种止回阀能够在重力和介质倒流撞击启闭件之前关闭阀门，因此这种直通弹簧驱动升降式止回阀也称为“静音”止回阀。
The in-line spring-actuated lift check also is referred to as the "silent check" because the spring closes the valve before gravity and fluid reversal can slam the valve closed.
谐波螺旋式阀门采用双波谐波螺旋传动，实现由圆周运动向直线运动的转化，实现阀门的启闭。
The harmonic screw type valve is driven by the double wave harmonic screw. It can transform circle movement to line movement for the closing and opening of the valve.
沙溪口表孔弧门是我国第一个采用斜拉式双缸液压启闭机操作的水电站。
Shaxikou Spillway Segment Gate is the first hydraulic Power Station controlled by skew axis double drum hydraulic hoist in our country.
采用薄膜式气缸替代活塞式气缸，排除了活塞环易损漏而导致无法启闭阀门的弊端。
Adopt film cylinder in place of piston cylinder, which remove the abuse that piston ring is easily damaged and lead to not open or close valve.
将ANSYS的二次开发语言APDL与VC相结合，开发门式启闭机门架结构的参数化有限元分析系统。
Combining APDL in ANSYS with VC, the parameterized finite element analysis system of the hydraulic gate hoist structure is developed.
以开发的门式启闭机变型设计平台为例，对提出的方法进行了验证。
The variant design platform of sluice gate gantry crane was developed, and as an example, methods were applied and verified.
由启闭装置的不同型式可分为手动式、电动式、手电动式三种。
The penstock can be divided into manual type, manual and electric type, electric type according to the headstock.
在原有螺杆式、卷扬式和液压式启闭机的基础上，设计研制了齿销式启闭机。
On the basis of original screw type, winding type and hydraulic type Headstock, a kind of dentate annul headstock is designed and manufactured.
后拉式双缸液压启闭机是新型的弧门启闭机，在我国刚刚开始应用。
The machine drawn back by hydraulic Pressure of two oil cylinder is a new machine used in the spillway radial gate, it is beginning to be used exactly in our country.
本文主要研究直动式顺序阀的启闭特性与阀的结构参数的关系。
The paper investigates the relationship between the cracking and closing characteristics and the structural parameter of the direct sequence valve.
门式起重机是水利水电工程中不可缺少的大型设备之一，在水电站用于开启和关闭闸门的门式起重机称为门式启闭机。
Gantry crane is the indispensable one of the large-scale equipments in hydropower station, the gantry cranes which are used in hydropower to open and close sluice gates are named gantry hoists.
本实用新型涉及一种适于在船舰、车辆、水利工程等领域使用并采用动力缸驱动的滑块-连杆式门盖启闭装置。
The utility model relates to a slide block-connecting rod type door cover opening and closing device, which is suitable for being used in the fields of vessels, vehicles, hydraulic engineering, etc.
按钮式的起动部分，只需轻按按扭，零件作极小的位移、即可快速完成全部启闭动作。
A button type actuating part only needs lightly press the button and the parts do a minimal displacement, and then the entire start-stop action can be finished fast.
介绍了一种适用于球阀、蝶阀和旋塞阀的阀杆旋转角度启闭的撑拢式阀门密封结构。
Its suitable for ball valves, butterfly valves and plug valves and it has gained an invention patent patent No: ZL00111674.
介绍了一种适用于球阀、蝶阀和旋塞阀的阀杆旋转角度启闭的撑拢式阀门密封结构。
Its suitable for ball valves, butterfly valves and plug valves and it has gained an invention patent patent No: ZL00111674.
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