Cooling water pipes

Cooling water pipes are essential for the operation of power stations and must not cease to function. Pipelines for fire fighting are also important for safety reasons. Such steel pipelines are usually well coated. At areas of unavoidable damage to the pipe coating, there is an increased danger due to cell formation between steel and concrete where local corrosion rates of >1 mm a are to be expected [4], Damage to pipelines for fire fighting has frequently been observed after only a few years in service. [Pg.312]

Sizing Cooling Water Piping in New Plants Maximum Allowable Flow, Velocity and Pressure Drop... [Pg.5]

Failure of cooling water piping in sequence 17 was dominated by soil consolidation lailure of underground piping. The pipe is subject to non-ductile cracking during extremely cold w eather. [Pg.419]

The arrangement of cooling water piping shall conform to Figures D and D-5. [Pg.49]

The cooling water piping shall be designed as specified in 2.1.20. [Pg.49]

O NAME OF FLUID STEAM AND COOLING WATER PIPING... [Pg.85]

SPECIFIC HEAT. Co (BTU/LB F) 0 VAPOR PRESSURE (PSIA) (° F) Bi COOLING WATER PIPING PLAN 0.5.4.1) COOLING WATER REQUIREMENTS SEALJACKET/BRGHSG (GPM) a (PSIG)... [Pg.91]

Figure D-4A—Cooling Water Piping for Overhung Pumps—Plans A, B, D, and K...

Figure D-4B—Cooling Water Piping for Overhung Pumps-...

A358 Cooling Water Piping Material CW PIP MAT C 1 A galvanized pipe Bicopper tube Cistainless tubing Ziother... [Pg.35]

I—) engine MANUFACTURER SHALL FURNISH POWER CYLINDER COOLING WATER PIPING FROM A SINGL E INL ET FL AnCE TO A SINGLE DISCHARGE FLANGE. [Pg.596]

Figure 8.6 Rust tubercles in a 2-inch cooling water pipe at a hydro-power plant after 15 years of service. (Photo Erling Abusland, SINTEF Corrosion Centre.)...

Removable Steel Shiejd., Between the removable concrete shield and the removable steel shield is a void 5 in. wide which is used for cooling-water pipe connections. Behind this space is a round steel billet mounted flush with the reactor face, which provides a convenient shield for the plug cooling-water connections, this billet is of necessity readily removable. Based on calculations of cooling-water activity, this, steel is required to be approximately 8 in. thick. [Pg.109]

Heating not supplied or not sufficiently supplied 1. blower of air conditioner failure 2. relay of the blower damaged 3. heating water pipe blocked 4. cooling water pipe blocked 5. cold/hot damper executor damaged 6. insufficient cooling liquid... [Pg.366]

C. Piping and Instrumentation. Cooling water piping is usually carbon steel. This fact makes it essential for the plant operator to keep up with the water treatment program. Untreated cooling water is the most corrosive form. Most plants at least add inhibitors. These vary in composition, and it is difficult to generalize other than to say that chromates, once a standard, are now seldom used, because of their toxicity. [Pg.1185]

Scaling and corrosion both are problems in cooling water piping. Calcium carbonate is the most common sealant. When sulfuric acid is used in the treatment program, this is converted to the sulfate. Calcium sulfate has less tendency to precipitate and scale the piping, but it is harder to remove when present... [Pg.1185]

ConqKment cooling water Piping Pressure boundary Routine walk through Wall thinning Liquid erosion High flow rate... [Pg.23]

Cooling water pipes are generally provided only on the liner and there Is no overall network within the concrete structure. Horizontal holes also cause local loss of shielding and this Idea has not been considered further. [Pg.19]

It Is envisaged that there will be problems In connecting up the cooling water pipes, particularly In the scheme where the liner is lowered Into the vessel. However, for the purposes of this report, this problem Is... [Pg.31]

Emergency cooling water pipe fitihire/leakage... [Pg.151]

Figure 12.3a illustrates an atmospheric pressure fixed-bed reactor used in German FT plants. The catalyst is located between vertical cooling plates, interconnected by horizontal cooling-water pipes. The heat of the reaction is led away from the catalyst by boiling water inside the pipes. The large-scale plants in Germany, France, and Japan were usually operated with these atmospheric pressure reactors. [Pg.272]

Fig. 10.1 Metal atom reactor. A - Glass reaction vessel. B - Electron beam furnace, model EBSl, G.V. Planer Ltd. C - Vapour beam of metal atoms. D - Co-condensate of metal and substrate vapours. E - Heat shield. F - Furnace cooling water pipes. G - Electrical lead for substrate solution dispersion device. H - Furnace electrical leads. J - Substrate inlet pipe (vapour). K - Substrate inlet pipes (solution). M - Rotation of reaction vessel. N - To vacuum rotating seal, service vacuum lead troughs and pumping systems. 0-Level of coolant (usually liquid nitrogen). P-Capped joint for product extraction. 0-Substrate vapour dispersion device. R-Substrate vapour beam. (From Green, M.L.H., 1980, /. Organomet. Chem., 300, 119.)...

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