查询词典 valve block

We've mainly produced many types of marine fittings with a completed list of specifications as per such standards as JIS, DIN ANSI and BS, including flanged valve, cast steel stop valve and angle valve, cast iron stop valve and angel valve , storm valve, fire valve, air plug and filter.

本公司主要生产日本标准JIS。以及DIN，ANSI，BS等标准和船用法兰阀门，铸铁截止阀/角阀。铸钢截止阀/角阀，防浪阀。消防阀，闸阀，碟阀，德标/美标蝶阀及配件等，并且代理美国GRACO气动隔膜泵，气动柱塞泵，高压清洗泵。

We've mainly produced many types of marine fittings with a completed list of specifications as per such standards as JIS, DIN ANSI and BS, including flanged valve, cast steel stop valve and angle valve, cast iron stop valve and angel valve , storm valve, fire valve, air plug and filter.

本公司主要生产日本标准JIS。以及DIN，ANSI，BS等标准的船用法兰阀门，铸铁截止阀/角阀。铸钢截止阀/角阀，防浪阀。消防阀，闸阀，蝶阀，德标/美标蝶阀及配件等，并且代理美国GRACO气动隔膜泵，气动柱塞泵，高压清洗泵。

We've mainly produced many types of marine fittings with a completed list of specifications as per such standards as JIS, DIN ANSI and BS, including flanged valve, cast steel stop valve and angle valve, cast iron stop valve and angel valve , storm valve, fire valve, air plug and filter.

本公司主要生产日本标准JIS。以及DIN，ANSI，BS等标准的船用法兰阀门，铸铁截止阀/角阀。铸钢截止阀/角阀，防浪阀。消防阀，闸阀，蝶阀，德标/美标蝶阀及配件等，并且代理美国GRACO气动隔膜泵，气动柱塞泵，高压清洗泵。空气帽。600mm航海平行尺等一系列产品。

When a sudden power failure or accident or normal pump stops when the pump stops, the valve inlet water velocity to reduce stress Agency, the valve plate also fall, when its velocity is zero (that is, inlet flow rate is zero Department), large valve plate because of its own gravity and rapidly turn off (time 3s ~ 5s), the majority of water to prevent backflow, when the valve before and after the formation of a water pressure, water stress, on the one hand through the small valve at the bottom of the three slot for pressure relief vent pressure. 4 water stress from the bypass tube into the cavity patch up the control room (this process for the suction pressure chamber that can effectively absorb the energy of water), when water stress on cavity than inferior vena cava, the pressure of water promote the diaphragm down mobile , the current cavity pressure of water being squeezed out all the small valve plate slowly drop back to standby status, the process time to ease closure adjustable (3s ~ 150s), then the valve has been fully closed, watertight.

当突然停电或事故停泵或正常停泵时，阀门进水口处压力水流速降低，大阀板也随之下降，当其流速为零时，大阀板由于自身重力而迅速关闭（时间3s～5s），可防止大部分水倒流，此时阀门前后形成一种水压差，压力水一方面通过小阀板底部的三条泄压槽进行泄压。4）压力水从旁通管进入膜片控制室上腔（此过程为吸压腔，能有效吸收一部分水能量），当上腔压力水大于下腔时，压力水推动膜片往下移动，当下腔压力水全部被挤出来时，小阀板缓缓下降，恢复到待机状态，此过程中缓闭时间可调节（3s～150s），届时阀板已全部关闭，滴水不漏。

When entering the diaphragm pressure on the top of the control room to the atmosphere or water by the downstream area of low pressure, the role of the bottom plate in the valve and the pressure below the diaphragm on the pressure value is greater than the top, so the main valve disc to the fully open position; when entering the diaphragm pressure above the control room can not water the lower reaches of the atmosphere or area of low pressure, the role of the diaphragm on the top of the pressure value is greater than the pressure below the value, so will the main valve pressure valve set to fully closed position; when the diaphragm pressure above the value of the control room at the entrance of the middle pressure and outlet pressure, the main valve in the regulator valve on the disk, and its regulation depends on the location of the needle-catheter system and adjustable valve guide of the role of joint control.

当阀门进入隔膜上方控制室内的压力水被排到大气或下游低压区时，作用在阀盘底部和隔膜下方的压力值就大于上方的压力值，所以将主阀阀盘推到完全开启的位置；当进入隔膜上方控制室内的压力水不能排到大气或下游低压区时，作用在隔膜上方的压力值就大于下方的压力值，所以就会把主阀阀盘压到完全关闭的位置；当隔膜上方控制室内的压力值处于入口压力与出口压力中间时，主阀阀盘就处于调节状态，其调节位置取决于导管系统中的针阀和可调导阀的联合控制作用。

When entering the diaphragm pressure on the top of the control room to the atmosphere or water by the downstream area of low pressure, the role of the bottom plate in the valve and the pressure below the diaphragm on the pressure value is greater than the top, so the main valve disc to the fully open position; when entering the diaphragm pressure above the control room can not water the lower reaches of the atmosphere or area of low pressure, the role of the diaphragm on the top of the pressure value is greater than the pressure below the value, so will the main valve pressure valve set to fully closed position; when the diaphragm pressure above the value of the control room at the entrance of the middle pressure and outlet pressure, the main valve in the regulator valve on the disk, and its regulation depends on the location of the needle-catheter system and adjustable valve guide of the role of joint control.

当进入隔膜上方控制室内的压力水被排到大气或下游低压区时，作用在阀盘底部和隔膜下方的压力值就大于上方的压力值，所以将主阀阀盘推到完全开启的位置；当进入隔膜上方控制室内的压力水不能排到大气或下游低压区时，作用在隔膜上方的压力值就大于下方的压力值，所以就会把主阀阀盘压到完全关闭的位置；当隔膜上方控制室内的压力值处于入口压力与出口压力中间时，主阀阀盘就处于调节状态，其调节位置取决于导管系统中的针阀和可调导阀的联合控制作用。

When the load smaller than the first outlet pressure adjustment valve set pressure, pilot valve Poppet head off an oil chamber, oil chamber 2 is equal to the pressure on the outlet pressure, the main valve of the sliding shaft 2 inside the cavity in the oil a rigid under the action of a small spring at the lowest position, the main valve and the valve slider protruding shoulder posed by all the valve port opens, pressure reducing valve without decompression.

当负载较小，出口压力低于先阀的调定压力时，先导阀的提动头关闭，油腔1、油腔2的压力均等于出口压力，主阀的滑轴在油腔2里面的一根刚性很小的弹簧作用下处于最低位置，主阀滑轴凸肩和阀体所构成的阀口全部打开，减压阀无减压作用。

Valve product range is not entirely uniform, some by object (such as chemicals, oil, power stations, etc.), some by the media (such as water vapor, air valve, etc.), some on the material (such as cast iron valves, steel valves, valve Steel, etc.), Hydraulic control valve some by connecting shape - points (such as the thread, flange valve, etc.), some on the temperature (low temperature valve, high temperature valve, etc.).

阀门产品的种类繁多，说法也不完全统一，有的按用途分、有的按介质分、有的按材质分（如铸铁阀、铸钢阀、锻钢阀等）、有的按连接形式分、有的按温度分。

1 ACRII ACRI 序号产品名称 equipment 技术说明 technical specification submit fabrication of the involved components such as main control valve, filter, pressure control valve, pressure measurement meter, flow control valve, leak detection device, quick shut off valve, pressure regulating valve, protection device for insufficient pressure, piping for ignition nozzle, hand-valve, pressure controller, magnet valve, pressure indicator, complying with EU standard and can only apply after the approval of the contractor

其中包含：主燃料供给和控制管路的天然气主关断阀，天然气过滤器，天然气压力调节阀，压力检测表，天然气流量控制调节阀，天然气泄露检测器，快速关断阀，天然气压力恒压器，天然气压力不足保护器等和点火烧嘴燃料控制管路的天然气手动关断阀，天然气压力控制器，天然气电磁阀和流量计等元器件配置依据欧盟标准。

Equipment Department of the valve device integrated management: including the ledger set up, the valve procurement, warehousing inspection, transfer and retirement, etc.; water supply valve control center for Safety valves the pipeline network technology management: including the identification of technical standards, the establishment of the valve file cards, valve selection, construction and acceptance; the water plant, branch within the jurisdiction of valves, maintenance and repair, management Plug Valves responsibility for the work unit; valve testing center is testing the functions of the valve unit .

公司设备部为阀门设备综合管理部门：包括台帐建立、阀门采购、入库验收、调拨及报废等工作；供水调度中心为管网阀门技术管理部门：包括确定技术标准、气动调节阀建立阀门档案卡、阀门选型、施工及验收等；各水厂、分公司为所辖范围内阀门的使用、保养和维修、管理等工作的责任单位；阀门检测中心水力控制阀是阀门检测职能单位。

According to our present broadcasting situation,the thesis proposes using new technology to update and reform the present HFC. It also suggests broadcasting using self-advantage and arranging EPON in order to win the supermarket.

论文从我国广电的现状出发，结合实际，积极倡导采用新技术更新、改造我国现有的HFC网络；倡导广电现阶段利用自身优势，部署EPON网络来赢取市场。

A new general kinetic equation was derived in which the effect of the removal of condensation water was taken into account completely, and was applied to the polyesterification kinetic study of AA/HPHP and AA/NPG. It was found that the reaction order of self-catalyzed polyesterification was not constant. For these polyesterifications, the reaction order was 2.5 at a low temperature, while 3.0 at a high temperature.

考虑缩合水的排除对反应体系的影响，用体积浓度单位推导出一个新的聚酯反应总包动力学方程，并应用到AA/HPHP和AA/NPG两个聚酯化反应的动力学研究中，研究发现，自催化聚酯反应的反应级数并不是固定值，对于AA/HPHP和AA/NPG两个聚酯化反应而言，低温时反应级数为2.5，高温时反应级数为3.0。