[열교환기] Impingement Plate 적용 기준

Impingement Plate 적용 기준 (TEMA RCB-4.61)

1) 1 Phase Fluid (Non-abrasive)

  ▶ Shell Inlet Nozzle R-V-SQ값이 2250 kg/ms2 이상일 경우 적용

2) 1 Phase Fluid (그 외의 유체)

  ▶ Shell Inlet Nozzle R-V-SQ값이 740 kg/ms2 이상일 경우 적용

3) Gas, Vapor 및 2 Phase

  ▶ Shell Inlet Nozzle R-V-SQ 값에 관계없이 무조건 적용

 

 

(TEMA) 4.61

RCB-4.61 SHELL SlDE IMPINGEMENT PROTECTION REQUIREMENTS

An impingement plate, or other means to protect the tube bundle against impinging fluids,

shall be provided when entrance line values of p~ exceed the following: non-abrasive,

single phase fluids, 1500 (2232); all other liquids, including a liquid at its boiling point, 500

(744). For all other gases and vapors, including all nominally saturated vapors, and for

liquid vapor mixtures, impingement protection is required. V is the linear velocity of the fluid

in feet per second (meters per second) and p is its density in pounds per cubic foot

(kilograms per cubic meter). A properly designed diffuser may be used to reduce line

velocities at shell entrance.