Post Tagged with: "flow"

Pitot Tube Flow Detectors

Pitot Tube Flow Detectors

Basic, Instrumentations 23 Tháng Sáu, 2014 at 5:50 chiều

The pitot tube, illustrated in Figure 5, is another primary flow element used to produce a differential pressure for flow detection. In its simplest form, it consists of a tube with an opening at the end. The small hole in the end is positioned such that it faces the flowing fluid. The velocity of the fluid at the opening ofRead More

Venturi & Dall Tube Flow Detectors

Venturi & Dall Tube Flow Detectors

Basic, Instrumentations 23 Tháng Sáu, 2014 at 5:46 chiều

HEAD FLOW METERS Flow measurement is an important process measurement to be considered in operating a facility’s fluid systems. For efficient and economic operation of these fluid systems, flow measurement is necessary. Head flow meters operate on the principle of placing a restriction in the line to cause a differential pressure head. The differential pressure, which is caused by theRead More

Orifice Plate Flow Detectors

Orifice Plate Flow Detectors

Basic, Instrumentations 23 Tháng Sáu, 2014 at 5:43 chiều

HEAD FLOW METERS Flow measurement is an important process measurement to be considered in operating a facility’s fluid systems. For efficient and economic operation of these fluid systems, flow measurement is necessary. Head flow meters operate on the principle of placing a restriction in the line to cause a differential pressure head. The differential pressure, which is caused by theRead More

Boiler Steam and Water Flow General Description

Boiler Steam and Water Flow General Description

Hơi - Nước, Nhà máy Nhiệt điện 13 Tháng Sáu, 2014 at 1:30 chiều

Feedwater enters the bottom header of the economizer (Fig. 2). The water passes upward through the economizer and stringer tubes, and discharges through the outlet headers into piping which conducts the heated feedwater to the steam drum. The economizer stringers support the primary superheater as well as transport water to top of the boiler. The heated (but still subcooled) feedwaterRead More

Boiler Gas & Air Flow General Description

Boiler Gas & Air Flow General Description

Nhà máy Nhiệt điện, Nhiên liệu -Khói - Gió 13 Tháng Sáu, 2014 at 1:27 chiều

1. FUEL FLOW Raw coal is discharged to the pulverizers where the primary air is introduced and the fuel is pulverized. The pulverized coal is transported from the pulverizer by the primary air to the burners through a system of pressurized coal-fired piping. Each pulverizer will supply coal to burners. 2. AIR AND GAS FLOW Air from the forced draftRead More