We are manufacturer of heat treated steel pipes include quenched and tempered steel pipe, normalized steel pipe and annealed steel pipe among carbon steel pipe and alloy steel pipe. Our advantages and more services of heat treated steel pipes includes:
1) Wide range of sizes, out diameter from 20mm to 100mm
2) Customized Length from 100mm to 12000mm
3) Good surface roughness: 0.4um to 1.5um
4) Good straightness: 0.5mm/m to 2mm/m
5) Matched further processing: Grinding, polishing, straightening
5) Anti-rusty package
7) Full sets of testing equipment: Surface, Dimenstion. Mechanical properties testing
8) Fast delivery time
Quenched and Tempered Pipe,Quenched and Tempered Steel Pipe,Quenched and Tempered Steel Tubes,Qt Steel Pipes,Qt Steel Tubes SHANDONG LE REN SPECIAL STEEL CO., LTD. , https://www.sdhighstrengthsteelbolts.com
2, CFD, PIV and other advanced technologies combined with the actual experimental research CFD and other advanced technology, it is undeniable that colleges and universities now have software, are calculating, more than 50% graduate students are related topics. A new technology developed from a mature process, the current should be used as a practical solution to practical engineering problems, with the use of traditional design methods. In addition to try to combine the actual, otherwise it is difficult to mature and improve. Do not choose the title at the beginning too large, and some choose a pump from the import count to export, a pumping station from the sink into the pool, this calculation is difficult to judge. Like the wear parts of the slurry pump, the vortex parts of the inlet runner, etc., are well suited for research using CFD and PIV techniques. In addition, some large pump factories should cooperate with qualified institutions to carry out research in this field.
3, pay attention to key technologies and key product research and development To improve the technical level of the pump must solve the key technical issues. For example: Slurry pump wear mechanism research; High efficiency slug pump hydraulic model research; Self-priming pump to simplify the structure and improve the efficiency of research; Easy to repair high efficiency, high flow, high-lift mine drainage pump and pump research and development; Research and development of marine pumps; research and development of large-scale flue gas desulfurization pumps and high-temperature and high-pressure pumps for liquefaction of coal; research on reliability improvement of shielded pumps and magnetic pumps; research and development of new metering pumps (diaphragm pumps); Research and so on.
4, the use of composite technology to achieve innovation and development of pump technology Throughout the development of pump technology, many are the result of composite technology. E.g:
(1) The combination of centrifugal impeller and vortex impeller becomes a centrifugal vortex self-priming pump.
(2) jet nozzle and centrifugal pump combined to become a centrifugal jet self-priming pump.
(3) The combination of pump impeller and turbine runner, to become a water pump.
(4) centrifugal pump and piston diaphragm pump combine to form a strong self-priming pump.
(5) The inducer and the centrifugal wheel combine to improve the cavitation resistance of the pump.
(6) Double suction impeller and single suction impeller combine to solve the cavitation and axial force balance.
(7) the length of the blades combined use to solve the plug impeller import and export proliferation issues.
(8) short blade to the back of the long blade side of the Department to prevent the axial vortex and outlet flow separation.
(9) Downloading of low-lift impeller lifting liquid, loading high-lift impeller pressurized long-axis liquid pump (double-wheel liquid pump), to solve long axis liquid pump manufacturing difficulties, unreliable operation (see Figure 4).
(10) The mechanical seal static and dynamic ring installed in the last impeller seal ring at the end, as axial force balance device, the use of impeller pressure balance before and after the balance of axial force, as can solve the dynamic and static ring Wear problems, economic benefits are significant.
(11) The principle of the balance disc is moved to the impeller rear cover, due to the formation of radial and axial two gaps, the balance disc can be the same as the automatic balance of axial force. When the axial force is large, the impeller moves toward the inlet, the axial clearance increases, the pressure behind the impeller decreases, and the impeller moves backward. vice versa.
(12) paste packing seal, the seal of the United States, the first company to use Redstone, and sales in China, it is graphite, fiber, tetrafluoroethylene, silicone and other components of the paste, the use of the process, you can use Injection gun injection (supplement). It is said that in some cases, the effect is good. Although not yet available for use on all pumps, this is a valuable idea that promises to be a breakthrough in sealing technology.
(13) Slurry pump impellers, with twisted blades, may reduce wear due to compliance with flow conditions and increase efficiency.
There are numerous successful examples of using composite technologies. To make good use of living composite technologies, it requires a wide range of knowledge and dares to innovate.
Note that the discovery and development of new areas with a pump pump is a universal machine, a very wide range of applications, and new areas continue to appear with the pump. For example: heart pump, water pump, computer cooling pump, air conditioning pump, thermal oil pump, oil and gas mixing pump, flue gas desulfurization pump, oil platform injection pump . There may still be places where pumps should be used without pumps, and new areas of pumps will continue to emerge, which requires our attention and discovery.