Screw pump parameter flow
The flow parameter is one of the important parameters of the pump, which is the amount of fluid delivered by the pump per unit of time. Whether it is a gear pump,
Flow parameters are required for screw pump or centrifugal pump selection.
Common units of flow parameters are volume flow and mass flow. The unit of general volume flow is m3/s, m3/h or L/s.
The unit of mass flow is generally expressed in Kg/s or Kg/h. The relationship between mass flow and volume flow is: mass flow = medium density
Degree * volume flow.
The flow rate indicated on our pump manufacturer's sample is the rated flow of the pump, and the rated flow is the flow that the pump can guarantee.
The rated flow is generally greater than the normal operating flow, but the rated flow is not the maximum or minimum allowable flow of the pump. Normal operating flow
It is the flow required to reach its scale production under normal operating conditions.
The flow rate of the three-screw pump produced by our company's Botou Gear Pump Factory is generally 0.6-123m3/h. Twin screw pump flow is generally
At 1-2000m3/h. The flow rate of a single screw pump is generally between 0.1 and 150 m3/h.
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15-25mm Calcium Carbide: Physical and chemical properties: ores are solid brown or black block, pure white crystals (including CaC2 higher purple). Density of 2.22 g / cubic centimeter, the melting point of 2300 ° C (with CaC2 content), water immediately intense reaction to generate acetylene, and release heat, Calcium Carbide content varies with the melting point also will change.
Impurities: Caustic soda often contain calcium arsenide (Ca3As2), calcium phosphide (Ca3P2) and other impurities, and the role of water at the same time release arsine (AsH3), phosphine (PH3) and other toxic gases, so the use of Acetylene generated by calcium carbide is toxic.
Crystal structure
The most common crystal form of CaC2 is tetragonal, stable between 298K and 720K. Quartet CaC2 similar to the crystal structure of NaCl, but due to [: C≡C:] 2- ion oval, oriented, the crystal is tetragonal. In CaC2 crystal, the C-C distance is 120pm, which corresponds to the bond length of carbon-carbon triple bond, the distance between Ca and C is 259 and 282pm.
15-25Mm Calcium Carbide,Acetylene Plant Calcium Carbide,Industrial Calcium Carbide,Steel Calcium Carbide
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