Product Description> Attemper and Reducer Device

Catalog of High Temperature and Pressure Device of Second Generation

（I）Purpose
    This device reduces pressure P1 and temperature t1 of new steam （P1≤10MPa，t1≤540℃）to requirements of different pressure P2 and temperature t2 needed by customers.

（II）Brief Introduction of Structure
   This device consists of reducer system, attemper system, safety protection device and automatic control device.
    Reducer system——made up of reducer valve and throttle plate, realizing through executive framework.
    Attemper system——adopt water spray temperature reducing manner inside blending pipeline. It uses active force of cooling water towards spray nozzle and bounce of the spring to adjust flow area of cooling water of the nozzle and realizes adjustment of steam temperature through the opening of water control valve controlled by executive framework.
    Safety protection device——adopt impulse safety device（consisting of safety valve and impulse safety valve）or spring safety valve to realize. When secondary pressure surpasses regulated value, it gives out steam of surpassing part of pressure into the air and thus keeping secondary pressure within allowed value.
    Automatic control device——assemble RKG—□□□□ model steam pressure and temperature control device produced by our plant. Passing this device, new steam can maintain parameters of second steaming at stable value needed.

（III）Performance Indices
1.Inlet steam pressure P1≤ 10MPa and temperature t1≤540℃；
2.Outlet flow Q：changing range of outlet flow Q of attemper and reducer is 10%～100%, within range it can realize ideal adjustment.
3.Changing range of outlet steam pressure P2 is：
When P2≤0.98MPa, changing range of P2 is P2±0.4MPa；
When 0.98＜P2≤3.82MPa, changing range of P2 is P2±0.06MPa；
And when P2＞3.82MPa, changing range of P2 is P2±0.15MPa.
4.Adjustment range of outlet steam temperature t2 is t2±4℃.
5.In course of normal running, at 1 meter of lower end of attemper and reducer valve, and also 1 meter away from pipe wall, noise grade is not more than 85db.

（IV）Supply Range
     Supply range of high-temperature and pressure attemper and reducer device is within mark, mainly are：
1.Reducer system：attemper and reducer valve, and throttle plate etc；
2.Attemper system：water control valve, umbrella-shape automatic adjustable nozzle inside the blending pipeline and throttle valve etc；
3.Safety system：safety valve and check valve etc；
4.Pipeline sytem：steam pipeline, transition pipe and attemper water pipe and blending pipeline etc；
5.Matched fittings：stop valve, double-metal thermometer and take-over, pressure meter and three-way pipe, syphon, adapter, flange, cushion, bolt, nut and gasket etc.

GWY-01 Model High-temperature and Pressure Reducing Device Series Chief Chart（A Set of Impulse Safety Valve PN4/PN10）

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