steam turbine condenser tube leak detection system
Taming Condenser Tube Leaks, Part II - powermag.com In Part I of this two-part report we examined the various chemical forces at work in condenser tube leaks, the steam plant components placed at risk, and the suite of instrumentation most capable ...
Condenser Leak Detection by Using SF6 as a Tracer Gas ... condenser steam space with other non- condensables in the off-gas, and is detected by a mass spectrometer. Typically, condenser tube leakage test- ing begins by isolating and draining a suspected circulating water train. In effect, this transforms the water leak into an air leak. The helium is released through a
Comparing Leak Detection Methods for Power Generation ... In addition, the cost of a high-end ultrasound detector required for condenser leak detection is less than a helium leak detection system and requires less training. In many power plants where ultrasound is deployed, a technician is used full time to scan the condenser, exchanger and multiple other systems for ultrasound.
Condenser tube leak - YouTube Titanium tube in a main steam condenser leaking. FREE FIX - How to Diagnose and Adjust an A/C Compressor Clutch in Car Truck - Blows Cold Then Warm - Duration: 23:20. Dan's Vlog 338,048 views
Leak Detection Services | CONCO Systems | Services | Industrial Condenser air inleakage negatively impacts plant performance, while tube leaks can cause forced outages costing power plants time and money in maintenance and lost productivity. Using advanced tracer gas leak detection technology, Conco leak detection services can quickly locate sources of leaks within your plant.
Steam Condenser of Turbine | Electrical4U Steam condenser is a device in which the exhaust steam from steam turbine is condensed by means of cooling water. The main purpose of a steam condenser in turbine is to maintain a low back pressure on the exhaust side of the steam turbine.
Leak Detection Program Results in MW Increase - Power Engineering He contacted Conco Systems Inc., Verona, Pa., the firm that provided tube-cleaning services for the plant's condenser. Conco's Leak Detection Division, Gaithersburg, Md., pioneered the ...
Heat Exchanger / Boiler Leak detection - YouTube Detect leaking pipes in shell & tube heat exchangers using Ultrasound inspection technology. ... Heat Exchanger / Boiler Leak detection UE Systems. ... Turn a ceiling fan into a wind turbine ...
Louisiana and Texas Vacuum Unit Leak Detection Circulating water leaks in condensers can result from penetrations through the tube walls, from joints between the tubes and tube-sheet, or from other penetrations between the water box and condenser shell. Contaminants in the circulating water can change condensate chemistry, which can cause boiler or steam generator corrosion.
Helium Leak Detection | Hennigan Engineering Condenser Tube Inspections. Much in the style of condenser air-inleakage inspections, condenser tube leaks are able to be identified through helium leak detection. When hotwell contamination happens, it can cause performance issues, and early system failures in Fossil Boilers and Nuclear Reaction Components and early tube failures in the boiler.
Inside Power Station: Condenser Tube Leak. The first indication of a tube leak will come from the change in conductivity or chemical analysis of the condensate out of the hot-well. The sampling connection can be brought into service to draw off samples of condensate from particular sections of the condenser to locate and isolated the section with the offending tube bundle.
Boiler Waterwall Tubes and Condenser Tube Leakage in Power Plants The steam thus condensed as water is cycled in the system through heaters, boiler, and turbine to come to the condenser again. Condensers are tubular heat transfer areas with steam on one side, maintained under vacuum to improve cycle efficiency, and cooling water on the other side. The cooling water is though the tube and steam over the tube.
Leak Detection "Ins" and "Outs" - Power Engineering A minimum of 15% turbine power is required for successful leak detection. It is the steam that drives the gas down through the system. ... Condenser tube leak detection is a little different ...
Aspects of Failure of Condenser tubes and their Remedial ... system is kept clean Keeping the importance of condenser tube leak on the plant performance in mind the present paper intends to provide a brief on different modes of condenser tube leakages and their preventive methods. Some case studies of condenser tube leakage investigated are also given.
Cooling water leakage in condensers | Condensers, pumps and ... The methods employed in British power stations for the detection of leakage of cooling water into the condenser, and of the consequent pollution of the condensate are: Condensate conductivity. Sodium contamination. Location of condenser leakage is influenced by the following factors: CW supply, i.e., fresh, estuarine or seawater.
ARUDRA ENGINEERS - HELIUM LEAK DETECTION SERVICES FOR ... The advantage of Helium Leak Detection is that, the check for tube leaks can be done by reducing the load of the machine and isolating one half of the condenser at a time. The test can also be conducted off-line, but the vacuum on the steam side should be maintained using the vacuum pumps and also with steam dumping.
Steam Turbine Condenser Tube Leak Detection System - Image Results
Ultrasonic Leak Detection Improves Heat Rate - Efficient Plant Isolating a section of the condenser allows Thorp to drain the cooling water and enter the water boxes while the plant is still operating. Because the turbine is still operating, a vacuum is present on the steam side of the condenser tube. This vacuum creates a pressure differential that sucks air into the tube leak site.
Helium Leak Detection Services | Projectile Tube Cleaning Projectile Tube Cleaning's Helium Leak Detection Services Division offers the precision technology of mass spectrometry leak detection. Projectile personnel are capable of locating leaks as small as 2×10-9 atm cc/sec helium.
Condenser Expansion Joints - Heat Exchanger Solutions One of the principle functions of the expansion joint is to absorb the differential thermal expansion between the steam turbine and the condenser while imparting minimal forces and movements on the turbine exhaust flange. RetubeCo specializes in installation, repair or replacement of elastomeric (rubber) dog-bone type expansion joints.
CN103383296A - Leakage detecting system for condensers ... A condenser leak detection system, comprising a sampling frame and connected by a disc-like leak water conduit, wherein said sample holder comprises a tube-like passage connected to the condenser of the sampling point, the tube-like the way in turn to a first shut-off valve bellows, Y type filter, the flow monitor, vapor separation chamber, a ...
CHAPTER5 STEAM, TURBINE AND FEEDWATER tube rupture, or a process failure while operating with a steam generator tube leak. This is accomplished by closing the appropriate turbine stop valves on the steam lines from two steam generators (the steam generator with the tube leak and its companion) and the appropriate
Condenser Leak Detection RetubeCo provides expert leak detection services to uncover both tube leaks, and air inleakage in and around your steam condenser or generator. Depending on the characteristics of your leak, our crew will mobilize with the appropriate technology to locate the leak, and at your option, provide immediate corrective action.
Leak Testing Steam Turbine Condensers - Agilent it ideal for condenser leak testing. Helium is sprayed around the vacuum portions of the condenser (Figure 1), while a mass spectrometer detects low concentrations of the gas at the outlet of the extractor or at other sites within the vacuum region of the condenser. Steam Turbine Operation The high pressure region of a turbine is working at pres -
Condensing Steam Turbine - Nuclear Power Decreasing the turbine exhaust pressure significantly increases the specific volume of exhausted steam, which requires huge blades in last rows of low-pressure stage of the steam turbine. In a typical condensing steam turbine, the exhausted steam condenses in the condenser and it is at a pressure well below atmospheric (absolute pressure of 0 ...
How does the steam turbine gland sealing system work? - Quora For understanding the gland sealing system first we have to understand why it is required so there are two main reason. 1. As turbine exhaust is Connected to a condenser which is operated below atm pressure so there are chances of air ingres or va...
Surface condenser - Wikipedia A surface condenser is a commonly used term for a water-cooled shell and tube heat exchanger installed to condense exhaust steam from a steam turbine in thermal power stations.    These condensers are heat exchangers which convert steam from its gaseous to its liquid state at a pressure below atmospheric pressure .
Taming Condenser Tube Leaks, Part I - powermag.com Online sodium analyzers on feedwater may also be an excellent method for catching a condenser tube leak early, before it has a chance to contaminate the steam or cause boiler chemistry problems.
LEAK DETECTION SOLUTIONS FOR POWER GENERATION AND CHEMICAL PLANTS Steam Turbine Leak Testing Steam Turbine Condensers Introduction Power generation turbines, regardless of the type of fuel used, are driven by steam generated in a boiler. The boiler heats water and converts it to steam, spinning the turbine and in turn, driving the generator that produces electrical power. After exiting the turbine, the steam is
Global Supplier of Steam Condensers and Related Technology Two steam dome halves for a 183 MW condenser with the openness of the Ecolaire vaned design easily seen. This feature minimizes cross-bracing and produces minimum pressure drop as steam distributes from the turbine to the tube bundles, thus increasing turbine efficiency.
Condenser Leak Testing - HVS Leak Detection Over the course of a year, timely leak detection and leak repair would save $1,987 a day or$725,328 a year. (Based on a study of a 350MW plant that determined an increase of .5 inch Hg of suction pressure used 4.6 barrels fuel/hr, and assuming a $90 barrel of fuel.) Testing for Air Inleakage. HVS Leak Detection provides helium leak tests on ...