Baker Hughes Masoneilan SteamForm 84003 Series Скачать руководство пользователя страница 1

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Baker Hughes Data Classification : Public

Masoneilan

™

84003 Series SteamForm

™

Steam Conditioning Control Valve

Installation Guide (Rev. B)

Содержание Masoneilan SteamForm 84003 Series

Страница 1: ...Baker Hughes Data Classification Public Masoneilan 84003 Series SteamForm Steam Conditioning Control Valve Installation Guide Rev B...

Страница 2: ...INSTRUCTIONS SHOULD BE INTERPRETED AND APPLIED IN CONJUNCTION WITH THE SAFETY RULES AND REGULATIONS APPLICABLE AT THE SITE AND THE PARTICULAR REQUIREMENTS FOR OPERATION OF OTHER EQUIPMENT AT THE SITE...

Страница 3: ...Water temperature 8 Strainers 9 Valve installation 9 Valve support 9 Actuator support 9 Orientation 11 Drains and pipe slopes 12 Warm up and preheating steam 13 Insulation 14 Accessibility 14 Tempera...

Страница 4: ...ommended orientation of the SteamForm 11 Figure 7 Improper orientation of the SteamForm 11 Figure 8 Vertical flow down outlet orientation should be located at low point downstream 12 Figure 9 Drain ve...

Страница 5: ...ing and positioning of control elements are explained throughout this document Upstream Pipe Recommendations Adjacent pipe bends such as pipe elbows and tee connections are known to cause high levels...

Страница 6: ...nstallation of a pipe elbow This distance ensures that a sufficient mass of the water droplets is vaporized in order to prevent water fallout and insufficient mixing While this length varies with each...

Страница 7: ...misplacement of the temperature element results in uncontrollable operation requiring re engineering to correct the errors of the improperly designed steam conditioning system The proper location of...

Страница 8: ...tream where there is a relatively stable flow profile The recommended installation point is five pipe diameters downstream of the valve connection and any pipe elbows See Figure 3 Minimum Pressure Sen...

Страница 9: ...es There is a direct relationship between pipe size and turndown that must be evaluated for each installation After selecting the pipe size the next step is to correctly design the pipe wall thickness...

Страница 10: ...r once it becomes saturated The length for proper evaporation is determined by multiplying the steam velocity by the sum of t1 and t2 Multiple variables are presented in the calculation and are applie...

Страница 11: ...int where the pressure differential becomes too low and yields large slugs of water as opposed to the desired aerosol effect Large slugs of water are ineffective in cooling the steam because their mas...

Страница 12: ...iciency of evaporation Cold water sources such as condensate and makeup water require less mass flow to sufficiently cool the steam to the outlet set point The exact amount of water required can be de...

Страница 13: ...rolong the active life of the plant and critical pieces of equipment When properly used the steam conditioning valve keeps a plant on line during load rejections and allows the system to return to nor...

Страница 14: ...SPRAY WATER 100 MESH STRAINER L1 L2 Figure 5 SteamForm water spray control valve Installation Note The desuperheater nozzle has variable plug to prevent superheated steam back flow to the spray water...

Страница 15: ...e steam flow and run along the bottom of the pipe This results in flooding of the downstream steam lines and poor temperature control This is particularly important for applications that need a wide r...

Страница 16: ...ow four possible installation scenarios and the desired location of drain connections to protect the SteamForm from passing condensate Drain connections can also be supplied by the factory for install...

Страница 17: ...onditions of high temperature steam are forced through the valve upon an upset condition such as a turbine trip These thermal shock scenarios occur when the steam conditioning valve is mounted farther...

Страница 18: ...ture feedback control is the most common method for controlling the amount of spray water that is injected into the steam flow This method requires the use of a downstream temperature sensor that rela...

Страница 19: ...valves a start up procedure must also be defined up front in the design process Proper cleansing of the steam line and water lines is essential to ensuring performance when the plant becomes operatio...

Страница 20: ...eam lines are thoroughly cleaned and hydrotested it is safe to install the operating trim For start up assistance from a certified technician please contact your local Baker Hughes Masoneilan sales of...

Страница 21: ...ntial in minimizing the noise generation and the cost of the installation For specific design recommendations it is essential to involve the bypass valve supplier and the condenser supplier up front i...

Страница 24: ...of Baker Hughes Company Other company names and product names used in this document are the registered trademarks or trademarks of their respective owners BHMN 84003 IG 31014B 1120 11 2020 Tech Field...