2, the boiler feed pump minimum flow cycle valve control requirements: The boiler feed pump to start and run safely, eliminate the flow due to small, increase in temperature, water, strong cavitation damage to the pump. Operating conditions: pressure drop of 16-35MP, is the valve in the power system to withstand the largest pressure difference, the flow rate is generally 30% of the normal flow. Intelligent variable frequency electric control valve requirements: intelligent frequency conversion electric control valve, twice The operation time is set to 1 second or more, and the soft start time can be set slightly longer. Anti-cavitation, anti-blocking structure, class V seal rating, continuous operation of the valve when the pump is started and stopped, and the valve is normally open. The valve material is WCB/WC9 and 416 stainless steel material can also be used directly. The electric actuator that drives the valve should be used up.
3. High/Low Heater Trap Water Supply Heater Water Drain, Condensate Water Heater Drain Control Requirements: Control the position of the condensate in the heater, discharge the condensate in time, ie the high water level discharge, the normal water level is hydrophobic. Operating conditions: The medium is saturated water, the pressure difference between the control valves of the heater is generally 0.6-3MP kg, and the last level trap valve is directly connected to the condenser or deaerator. Intelligent Variable Frequency Electric Control Regulating Valve Requirements: Anti-flash flushing, Class V or VI seal rating, valves are normally fault open.
4, Deaerator water level control valve control requirements: provide flow to maintain the normal water level of the deaerator, by adding steam to improve the water temperature to eliminate dissolved gas in the water. Operating conditions: Small flow during start-up phase, large pressure difference, normal flow, low pressure drop, and working conditions similar to the water supply valve. Intelligent variable frequency electric control regulates valve requirements: effective against cavitation at low flow rates.
5, desuperheating valve (heat reducer) Control requirements: Inject high-pressure water into the steam so that the steam temperature reaches the control requirements. Operating conditions: The medium is water and the pressure difference is large. Smart Variable Frequency Electric Control Regulating Valve Requirements: Various types, single and double seats, ball valves, self-contained and counter-type butterfly valves.
6, temperature reducing valve (high, low pressure bypass valve) Control requirements: the high temperature and high pressure steam adjusted to a certain temperature and pressure of the steam; to the steam turbine to provide a bypass channel, the boiler can work independently of the turbine. Operating conditions: high temperature and high pressure steam decompression. Valve intelligent variable frequency electric control adjustment door requirements: with heat sink, thermal shock, noise reduction, rapid response.
Second, heat exchange station system dedicated intelligent variable frequency electric control valve
1, steam station steam flow control and control requirements of the heat exchange station: The high temperature steam is adjusted to a certain temperature and pressure steam, the plate heat exchanger outlet temperature, control the steam input, for heat exchange station energy-saving operation. Operating conditions: High-temperature steam decompression operation. Intelligent variable frequency electric control valve adjustment requirements: With heat sink, thermal shock, noise reduction, rapid response.
2. Control requirements for water flow control of heat exchange station: The output temperature of the plate heat exchanger controls the input of plate heat exchanger into the hot water, more than the amount of hot water through the bypass back to the boiler room for energy saving of the heat exchange station. Run to use. Operating conditions: high temperature water operation. Intelligent variable-frequency electric control control valve requirements: Diverting three-way valve, thermal shock, noise reduction, rapid response.
Crimped Woven Mesh Material :
High carbon steel:45#,50#,55#,60#,70#,65Mn,72A,Stainless steel 304,321,316,2205,2507
Wire diameter: 1.37mm-12.7mm,Our finished wire is inspected by third party SGS,
Tolerance+_0.03mm .
Aperture/Opening:from 2mm to 100mm,tolerance +-3%
1.Aperture error:<3%,which is better than international standards ;
2.Wire diameter error :+-3%;
3.Diagonal error:<9mm every 2m .
Weaving Types :double crimped screen,single intermediate crimp screen,double intermediate crimp screen,lock crimp screen,flat top screen,pressure welded screen .
As
a highly-accomplished wire mesh exporter, Kingdelong was established
jointly by China and South Korea in 1986, Our strategic location in
Anping County,Hebei province is only 300KM away from Beijing and
Tianjin, which offers us very competitive advantages both in trade and
logistics. Through two decades of hard work, Kingdelong company had
evolved into one of China`s largest wire mesh manufacturing
companies,Covering an area of over 200,000㎡, certificated by ISO 9001
& ISO 14001,as well as more than 450 diversified production
machines, which are either imported from foreign countries or developed
in-house.Wire mesh products find applications in a wide range of
industries, from Pharmacy to petroleum and chemical to textile.
Decorative Metal Mesh,Metal Mesh Curtain,Decorative Ring Mesh,Flexible Metal Mesh Curtain
ANPING KINDELONG WIRE MESH CO.,LTD. , https://www.wire-mesh.org