YCB arc gear pump for conveying solid particles and fibers without the non-corrosive, the temperature is not higher than 80 ℃, the viscosity of 5 × 10-6 ~ 1.5 × 10-3m2 / s (5-1500cSt) of lubricating oil or Other liquids of a similar nature as lubricating oils, as well as for hydraulic drive systems. YCB series arc gear pump applications in the oil transmission system can be used as transmission, booster pump; In the fuel system can be used as delivery, pressurization, injection fuel pump; hydraulic transmission system can be used to provide hydraulic Power hydraulic pump; in all industrial areas, can be used for lubricating oil pump. YCB series arc gear pump structural features This series of gear pump gear, shaft, pump body, pump cover, bearing sleeve, shaft seal and other components. Gear with double arc sinusoidal tooth shape manufacturing. Compared with the involute gear, it has the most prominent advantage that the tooth profile has no relative sliding during gear meshing. Therefore, the tooth surface has no wear, stable operation, no fluid due to low noise, long service life and high efficiency. The pump out of the shackles of the traditional design, making the gear pump in the design, production and use into a new field. Pump with safety valve as overload protection, safety valve full back pressure of the pump rated discharge pressure of 1.5 times. Can also be allowed to discharge pressure within the scope of the actual need to be adjusted. But note that the safety valve can not be a long-term work of the valve, if necessary, can be installed separately in the pipeline. Pump shaft seal is designed in two forms, one for the mechanical seal, one is the packing seal, according to the specific use and user requirements. From the spindle extension to the pump to see, clockwise rotation. YCB circular arc gear pump is generally used in the work environment is not clean construction machinery and precision of the general machine, as well as the pressure is not too high and large flow hydraulic system. YCB arc gear pump advantages: 1, simple structure, technology Better performance and lower cost 2, Compared with other pumps of the same flow, compact structure and small volume 3, Self-priming performance is good, reliable and reliable even in high and low speed even under manual conditions Self-priming 4, speed range.As the pump drive parts and gears are basically balanced, at high speed will not have a larger inertial force. 5, the oil in the work of its impact is not serious, Not easy to kill. YCB arc gear pump shortcomings: 1, the working pressure is low .YCB arc gear pump gears, shafts and bearings by the pressure imbalance, radial load, limiting its pressure to improve .YCB Arc gear pump is mainly used in low pressure system. 2, volumetric efficiency is lower. This is due to YCB arc gear pump end leakage. 3, the flow pulsation, causing pressure pulsations, the pipes, valves and other vibration, Large noise. YCB circular arc gear pump common fault causes Remedy does not buy oil or insufficient amount of oil pressure and not to mention high 1. Motor steering error 2. Suction pipe or filter clogged 3. Axial or radial clearance is too large 4. Leakage of all connections caused by air mixed 5. Oil viscosity is too high or oil temperature rise too high Correct the motor steering 2. Dredge the pipeline, clean the filter to remove the blockage, replace the new oil 3. Repair replacement parts 4. Tighten the screws on the joints to prevent leakage and prevent air from mixing in 5. Oil should be selected according to temperature changes.
Hydrofluorocarbons (HFCs), organic compounds that contain fluorine and hydrogen atoms,
are the most common type of organofluorine compounds. They are commonly used in air conditioning and as Refrigerants [4] in place of the older chlorofluorocarbons such as R-12 and hydrochlorofluorocarbons such as R-21. They do not harm the ozone layer as much as the compounds they replace; however, they do contribute to global warming. Their atmospheric concentrations and contribution to anthropogenic greenhouse gas emissions are rapidly increasing, causing international concern about their radiative forcing.
Fluorocarbons with few C-F bonds behave similarly to the parent Hydrocarbons, but their reactivity can be altered significantly. For example, both uracil and 5-fluorouracil are colourless, high-melting crystalline solids, but the latter is a potent anti-cancer drug. The use of the C-F bond in pharmaceuticals is predicated on this altered reactivity.[5] Several drugs and agrochemicals contain only one fluorine center or one trifluoromethyl group.
HFCs(hydro-fluorocarbon)
Hfcs(Hydro-Fluorocarbon),High Fructose Corn Syrup,Fructose Corn Syrup Hfcs,High Fructose Syrup
Quzhou Xiecheng Chemical Co., Ltd. , http://www.xcrefrigerant.com