限流孔板说明书汉英.doc

目 录Catalogue一、 产品用途 Service二、 产品型式和组成Component Part三、 产品成套及使用Model and Main Performances四、 产品运输和贮存Transportation and Storage五、 随箱技术资料Attachment in Package Box六、 订货须知Information for Placing Orders一、产品用途FUNCTION FOR RO LGX型限流孔板也称减压孔板，主要用于流体要求降压的场合。如：在控制阀后设置限流孔板，以减小阀上的压降，降低阀的噪音，减少阀芯阀座的磨损等；流体需要降压及对降压准确度要求不高的场合；或设在控制阀旁路上，以防止手动操作旁路阀时造成泻压太快或发生液位抽空等危险，以及在配管放空系统中降低噪声等等。LGX RO is also can be called as pressure-reduced orifice, which is mainly used on the site of pressure-loosed requirement. For example, installing RO on the back of control valve so that reducing the pressure and lower the noise of valve, at the same time protecting the valve seat and pith. If you need to loose the flow pressure or avoid quick pressure lose and liquid empty, the best choice is using RO, thus you can also reduce the noise of pipeline.二、产品型式和组成SCORE AND COMPOSE限流孔板可分为单级降压和多级降压限流孔板组。其降压级数需根据流体介质、降压要求等参数经计算确定。Now, we can provide various RO, for example, mono or multi-pressure lose type, the pressure lose class is decided by the fluid and pressure difference.1.当流体为气态时 When gas fluid 为了避免使用限流孔板的管路出现噎塞流，限流孔板后压力(P2)不能小于板前压力(P1)的约55%，即P20.55P1，因此当P20.55P1时，不能用单板，要选择多板，其板数要保证每板的板后压力大于板前压力的55%。 To avoid gas choke,pressure downstream(P2) shall not less than 55 percent of the pressure upstream(P1),otherwise multiplicate restriction orifice plate should be taken.2.当流体为液态时 When liquid fluid 当液体压降小于或等于2.5MPa时，选择单板孔板；当液体压降大于2.5MPa时，选择多板孔板，且使每块孔板的压降小于2.5Mpa。 Use single restriction orifice plate when differential pressure is less than 2.5MPa ,otherwise multiplicate restriction orifice plate should be taken1三、产品成套及使用STRUCTURE AND USING METHOD1.产品成套分为STRUCTURE DETAIL 1)单级限流孔板装置MONO-PRESSURE LOSE ROa)单板：只提供孔板(按用户提供法兰标准及密封面型式配置)。The orifice plate (only offer the plate, which is produced according to the flange and seal type of customer) b)单级成套：含孔板、紧固用法兰、密封垫片及螺栓组件。The unit include: orifice plate, flange for tight, seal shim and bolts and nuts 2)多级降压限流孔板组装置MULTI-PRESSURE LOSE ROa)法兰连接式限流孔板组件：此种供货不提供密封垫片及螺栓组等。Flange type RO include: seal shim, bolts and nuts are not included in this type of RO b)带工艺法兰限流孔板组装置：成套含限流孔板组、工艺配对法兰、密封垫片及螺栓组等。RO with the technology flange: which include orifce plate units, seal shim and bolts and nuts.产品成套图示：Diagram of restricktion orifice plate equipment is as following: Fig.1 多级限流装配示意图(RF)Diagram of multiplicate restriction orifice plate equipment (RF)21. 螺栓组 Bolts and nuts2. 工艺法兰 Processing flange3. 本体法兰 Flange of the equipment-itself4. 限流孔板组 Restriction orifice plates5. 密封垫片 GasketFig.2 多级限流装配示意图(RJ)Diagram of multiplicate restriction orifice plate equipment (RJ)1. 螺栓组 Bolts and nuts2. 工艺法兰 Processing flange3. 本体法兰 Flange of the equipment-itself4. 限流孔板组 Restriction orifice plates5. 密封环垫 WasherFig.3 单级限流装配示意图(RF)Single restricktion orifice plate equipment (RF)31. 螺栓组 Bolts and nuts2. 工艺法兰 Processing flange3. 密封垫片 Gasket4. RF孔板 RForifice plateFig.4 单级限流装配示意图(RJ) Single restricktion orifice plate equipment (RJ)1. 螺栓组 Bolts and nuts2. 工艺法兰 Processing flange3. RJ孔板 RJ orifice plate2.产品的使用USING METHOD限流孔板因不需测量勿需设取压孔。使用时需注意流向标记，将装置按流向和装配示意图要求紧固在工艺法兰上，装配时应保证限流孔板或限流孔板组装置轴线与管道轴线同轴，并与管轴线垂直。The RO dont have the function of measuring ,therefore is unnecessary to design pressure tap ,at the same time must show the direction on the RO,remember to connect the units with flange according to the flow direction and installation drawing and must insure that the RO and pipeline have the same axis (vertical with pipeline axis)4四、产品运输和贮存TRANSPORTATION AND STORE 产品运输过程中严防磕碰，尤其应保证密封面的完好，以免影响密封性能。并应备有防雨措施，防止产品锈蚀。产品在暂不使用时应存放于干燥无腐蚀性气体的室内仓库中，不得露天存放。When transport we must avoid knocking and encountering of RO.keep the sealing face intact, besides, keep aware of rain，rust spot and corrosion,remember to store it in the warehouse instead of at outside五、随箱技术资料RELATIVE DOC.1.产品计算结果表Calculation sheet2.产品装配示意图Installation drawing 3.产品质量合格证明 Quality guarantee doc4.产品使用说明书Specification for RO 六、订货须知 ORDER NOTICE产品订货时需提供如下工艺参数Customer should provide the following data1.被测介质 Fluid2.常用流量 Normal flow3.使用温度 Operating temperature4.限流孔板入口、出口压力 Inlet/outlet pressure5.管道口径(内、外径) Pipesize(OD,ID)56.连接法兰标准(压力等级及密封形式等)及成套要求 Flange type and class注：1).当被测介质为非常用的特殊介质时除提供上述参数外，还需提供介