Conductive oil pump in the use of play an important role and value, but there will be some important fault in use, when the thermal oil pump has a certain failure, the need for its timely analysis, testing and maintenance, to ensure the use of thermal oil pump Has good use value and role. Here is a brief introduction to a case of thermal oil pump failure, timely repair and maintenance: ①thermal pump oil pump body and both sides of the cover for the direct contact of the hard seal, flatness of the contact surface can not reach In the same way, the pump is also in direct contact with the gland and the air is also easy to invade. If the gland is made of plastic, due to its damage or deformation due to temperature changes, Will also make the seal lax and into the air. ② The installation position of the pump is too high from the oil surface, especially when the pump speed is reduced, the air can not be sucked in due to the insufficient vacuum of the pump oil absorption chamber. At this point should be adjusted to the relative height of the pump and oil surface to meet the requirements. ③ fuel tank is not enough oil, or the suction nozzle is not inserted below the oil surface, the pump will inhale the air, this time should be added to the fuel tank to the oil line; if the oil return pipe mouth exposed oil, and sometimes because of Negative pressure within the system so that the air back into the system of irrigation, so return pipe mouth generally should be inserted below the oil level. ④ The shaft is generally sealed with a skeleton oil seal. If the locking lip spring off, or the oil seal installed, or its lips were injured, aging, will make the back end of the seal often in negative pressure and inhale the air, the general can replace the new seal to be resolved. ⑤ oil filter is clogged with dirt or its capacity is too small, resulting in increased suction resistance and inhalation of air; In addition, into the port of a larger caliber may also be brought into the air. At this point, you can clean the filter, or choose a larger capacity, and out of the appropriate diameter filter. In this way, not only can prevent the inhalation of air, but also to prevent noise. The way to get rid of the heat pump is: when the flatness of the pump body or the pump cover can not meet the specified requirements, it can be grinded back and forth on the flat steel with the "8" shaped route with the gold sand, or on the surface grinding machine , So that its flatness does not exceed 5μm, and the need to ensure that the plane and the hole perpendicularity requirements; For the pump cover and gland at the leak, can be coated with epoxy adhesive sealing.
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Huilifeng Anti-Corrosion And Insulation Steel Pipe Group Co., Ltd , http://www.tj-steeltube.com