Corrosion-resistant self-priming diesel pump is based on the relevant technical information at home and abroad by the digestion, absorption, improved after the development of the latest pump products, the self-priming pump for the oil industry, land depot, tank car ideal product and suitable In the oil for shipping, bilge pumps, fire pumps and ballast pumps and machine cooling water circulation, respectively, transportation of petrol, kerosene, diesel, jet fuel and other petroleum products and sea water, water, medium temperature -20 ℃ -80 ℃, such as Transport chemical liquid can be replaced by corrosion-resistant mechanical seal. Interpretation of corrosion-resistant self-priming diesel pump product features, structure and working principle First, the corrosion-resistant self-priming diesel pump Features: 1. The pump is self-priming pump, which has a simple structure, easy operation, stable operation, maintenance Easy, high efficiency, long life, with strong self-priming capabilities. No need to end of the valve in the pipeline, just to ensure that the pump body before storage can be cited quantitative oil. Used in tankers or ships on water, can double as a stripping pump, stripping a good effect. 2. Corrosion-resistant self-priming diesel pump is made of high-quality materials refined, sealed with carbide mechanical seal, durable, spit out the pipeline does not require the installation of safety valves, suction pipe does not need to install the end valve thus simplifying the piping system , But also improved working conditions. Second, the corrosion-resistant self-priming diesel pump structure: 1 coupling 2 pump shaft 3 bearing 4 mechanical seal 5 bearing body 6 pump housing 7 outlet seat 8 inlet seat 9 front seal ring 10 impeller 11 rear cover 12 file hydrant 13 plus Liquid hole 14 back to liquid hole Third, the corrosion-resistant self-priming diesel pump works: Corrosion-resistant self-priming diesel pumps are used axial back to the pump body structure. The pump body consists of a suction chamber, a liquid storage chamber, a scroll chamber, a liquid return hole, a gas-liquid separation chamber and the like. After the pump is normally started, the impeller sucks the liquid stored in the suction chamber together with the air in the suction pipe And completely mixed in the impeller. Under the action of centrifugal force, the liquid entrains the gas to the outer edge of the scroll chamber and forms a certain thickness of white foam belt and a high-speed rotating liquid ring on the outer edge of the impeller. Gas-liquid mixture into the gas-liquid separation chamber through the diffuser. At this point, due to a sudden drop in flow rate, the lighter gas is separated from the mixed gas and the gas continues to rise through the pump outlet. The degassed liquid returns to the liquid storage chamber and re-enters the impeller through the return hole, re-mixing with the gas inhaled from the suction pipe inside the impeller, and then flows to the outer edge of the impeller under the action of a high-speed rotating impeller. As the process goes on and off, the air in the suction line is continuously depleted until the gas is exhausted and the process of self-priming is completed, and the pump is ready for normal operation. Because this self-priming pump has this unique ability to vent, the pump delivers gas-laden fluids without the need to install a foot valve and has good sweep capability when used on an oil tanker. In some pumps the bottom of the bearing body also has cooling chamber. When the bearing heat caused by bearing body temperature rise over 70 ℃, in the cooling room by any one of the coolant pipe fittings, injection cooling fluid circulation. Pump inside to prevent the liquid from the high-pressure zone to the low-pressure zone leakage seal mechanism is the front and rear seal ring, the front seal ring mounted on the pump body, the rear seal ring mounted on the bearing body, when the pump running seal ring wear to a certain extent, and Affect the pump efficiency and self-priming performance, should be given replacement. Asia Fluid Network () Editor: Huang Nengwen, QQ:
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