Heat transfer oil pump is a kind of hot oil heat pump back to pump or for heat transfer pump, heat exchange equipment is the ideal matching pump. Thermal conductivity oil pump, also known as high-temperature thermal oil pump, high temperature centrifugal pump, hot oil pump, etc. In the process of using the air intake is the common defects of the heat pump, the composition of air sucking shallow notice the following: 1, Oil level is too high, especially when the pump speed is reduced, due to the pump vacuum chamber can not guarantee the composition of the suction vacuum lack of inhalation of air at this time 2, high temperature heat pump oil pump body and both ends of the cover is direct Contact the hard seal, if the flatness of the contact surface does not meet the polite requirements, the pump is free to inhale the air in the obligation, as the pump end cap and gland are also in direct contact with the air is also free to invade, if the gland Plastic products, because of its damage or deformation due to temperature changes, will make the seal lax and into the air. 3, the oil tank insufficient, or the suction nozzle is not inserted below the oil, the pump will inhale the air; 4, high-temperature heat pump on the pump shaft shallow shaft oil seal was used to seal.If the card is tight spring lips lip, or anti-oil seal, or its lips are strained, aging, will make the back end of the seal often in negative Pressure profile and inhale the air 5, the oil filter is contaminated by the dirt or its capacity is too small, leading to the introduction of oil resistance and air intake, the other, into the port of larger caliber can also be brought into the air. Adjust the relative height of the pump and the oil surface, so that it meets the requirements of courtesy 2, when the pump body or pump cover flatness does not meet the requirements of courtesy, you can use the sand on the flatbed with graphemes to grind, It can also be grinded on a surface grinder so that its flatness does not exceed 5μm. The requirement for the perpendicularity between the plane and the hole is required. For the leakage at the pump cover and the gland, the adhesive may be coated with an epoxy resin or the like 3, Should add oil to the fuel tank to the fuel line, if the oil return pipe port exposed oil surface, sometimes because of the system of instantaneous negative pressure and make the air back into the system, so shallow back to the oil nozzle should also be inserted into the oil 4, Change the new oil seal to be dealt with. 5, Can clean the oil filter, or pull larger capacity, and out of the proper diameter of the oil filter .So, high temperature heat transfer oil pump not only can avoid inhalation of air, but also to avoid Noise in China heating medium heating system The popularity of the use, has entered the petroleum, chemical, rubber, plastics, pharmaceuticals, textiles, printing and dyeing, roads, food and other industrial constraints, mainly for the delivery of non-solid particles of weakly corrosive high temperature liquid, the use of temperature ≤ 370 ℃ , Is a kind of hot oil recirculation pump. (Heat pump suction air causes and solutions)
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