It is reported that during the “10th Five-Year Plan†period, with the continuous expansion of equipment capacity of CNPC's enterprises and the increase of 27% in the volume of commodities, there has been a great change in the discharge of pollutants, the total amount of water used for energy use, and the comprehensive compliance rate of wastewater and waste gas. In 2004, the company's wastewater discharge amounted to 18,192 tons, and the compliance rate was 98.7%. The discharge of petroleum in wastewater was 512.7 tons, a decrease of 56.5%. The COD emissions amounted to 14,262 tons, a decrease of 11,565 tons, a decrease of 44.8%. The total amount of energy consumed has been reduced by 1 million tons of standard coal, and the total fresh water consumption has dropped from 520 million cubic meters in 2000 to 290 million cubic meters in 2004, and the water fee has dropped by nearly 100 million yuan. The total cost of energy consumption decreased by 2.036 billion yuan. The recovery rate of steam condensate increased from 60% to 80%, and the water recycling rate increased from 94% to 96%. During the “10th Five-Year Plan†period, the company’s total investment in environmental protection projects was nearly 2.5 billion yuan. From 2002 to 2005, 2583 clean production programs were implemented, and 530 million yuan was invested, resulting in an economic benefit of 780 million yuan. Of the 67 energy consumption indicators assessed, 52 were the best in history.
According to another understanding, in the first half of this year, PetroChina achieved a main business income of 335 billion yuan and a net profit of 61.6 billion yuan, ranking first among industrial enterprises in China, equivalent to 1/5 of the net profit of all Chinese state-owned and state-controlled enterprises in the first half of the first half of the year. .
News links According to statistics from relevant state agencies, China is still generally an extensive growth mode. Its main features are high consumption, waste, heavy pollution, and low efficiency. In 2004, the economy grew by 9% while energy consumption increased by 15%. The energy utilization efficiency and the reuse rate of industrial water are about 10% and 25 percentage points lower than that of the developed countries. Energy consumption and water consumption per unit of GDP are 3.4 times and 4 times of the average, respectively. The average energy consumption of major industrial products is 40% higher than the international advanced level. The consumption of sulfur dioxide and smoke from energy consumption exceeds 80% of the total emissions. The water efficiency is low, and a large amount of waste water discharge causes the deterioration of the water environment, in which the industrial waste water discharge accounts for about 50% of the total waste water discharge.
â‘ Hardness:
Due to the scientific synthesis of high-molecular polyurethane elastomer materials using iron rubber, the higher the hardness, the higher the modulus, the smaller the elongation, and the better the wear resistance and heat resistance. Well, in the range of minus 35 degrees Celsius to 100 degrees Celsius, and at a pressure of 60 to 70 MPa, the maximum sealing performance can be guaranteed.
The use of viscoelastic seals made of nitrile rubber is the most complete protection against damage caused by back pressure. In the range of minus 55 degrees Celsius to 100 degrees Celsius, and under a pressure of 21MPa, due to the rubber The seal is often in a compressed state, so the compression performance of the rubber seal must be considered. It not only achieves enhanced anti-climbing performance and low friction resistance, but also has good performance in dealing with special low-temperature oil, and can also be used in combination with Anti-wear Ring double-purpose retaining ring BRL type.
Sealing products made of polytetrafluoroethylene and nitrile rubber/PTFErubber; or seals made of nylon resin and nitrile rubber, which can be used in a wide range of applications with large pressure changes and fast sliding speeds According to the working condition, the input hydraulic pressure cutout is designed on the end face of the polytetrafluoroethylene ring to prevent penetration leakage. The maximum working temperature environment is minus 40 degrees Celsius to 160 degrees Celsius; the maximum working pressure is 50MPa.
SPGW piston seal
Material:PTFE+rubber elastomer+reinforced modified nylon
Temperature:Nitrile rubber -40~100℃
Speed:=1.0m/s
Pressure:≤50mpa
SPGO piston seal
Material:PTFE+rubber elastomer
Temperature:Nitrile rubber -40~110℃
Speed:=1.0m/s
Pressure:≤35mpa
SRUV piston rod seal
Material:NBR+thermoplastic polyurethane
Temperature: -35`90℃
Speed:=0.5m/s
Pressure:≤40mpa
SRS piston rod seal
Material:PTFE+NBR
Temperature:-40~110℃
Speed:=1.0m/s
Pressure:≤40mpa
SRCB piston rod buffer seal
Material:Polyurethane+modified polyoxymethylene
Temperature: -35~110℃
Speed:=1.0m/s
Pressure:≤50mpa
SRU piston rod seal
Material:Polyurethane
Temperature:-35~100℃
Speed:=1.0m/s
Pressure:≤40mpa
SRD iron case dust prevention
Material:Polyurethane+metal skeleton material
Temperature:-40~110℃
Speed:=1.0m/s
SRDI soft dustproof
Material:polyurethane
Temperature:-40~110℃
Speed:=1.0m/
SDS Dumbbell Seal
Material:polyurethane
Temperature: -35~110℃
Speed:=0.5m/s
Pressure:≤50mpa
SPG piston combination seal
Temperature:
NBR+Polyurethane + Modified PolyoxymethyleneTemperature:-35`110℃
Speed:=0.3m/s
Pressure:≤70mpa
SRNL piston rod seal
Material
NBR+Polyurethane + Modified PolyoxymethyleneTemperature:-35`110℃
Speed:=0.3m/s
Pressure:≤70mpa
SRDF Piston Rod Seal
Material
Polyester rubberTemperature:-40`100℃
Speed:=1.0m/s
SDY Y-seal
Material:Polyurethane
Temperature:-35~110℃
Speed:=0.5m/s
Pressure:≤70mpa
KZT anti fouling ring
SDS Steffel
Piston main oil seal
oil seals,hydraulic oil seal,track link oil seal,TCV oil seal
Safe Seal Technology Co., Ltd. , http://www.aprseal.com