1, first of all to understand the type of pump, characteristics, the current situation. Understand the requirements, determine the repair target. Before testing, prepare for testing. 2, to determine the fault, diagnosed fault. Judgment, may save trouble. Confirmed to verify. 3, troubleshooting, first Jane after the complex, the first easy hard. Do not disassemble without demolition. To reduce the lack of special tools and improper operation caused by new damage, reduce the position changes and run-in time. In general, the splicing rotor is not removable, otherwise the form of tolerance can not be guaranteed, the rotor scrapped. 4, toxic, harmful, corrosive pumps, users should be invited to clean, and inform the necessary protective measures to protect the health of maintenance personnel. 5, classification of the proposed fault is divided into operational failure and performance problems. Operation failure can include pump does not turn, the pump temperature is too high, oil spills, water leakage, the maximum power exceeded. Performance failure can include the ultimate pressure, extreme pressure, suction efficiency, noise, fuel injection, gas town performance, etc. can not meet the requirements or not. 6, fault diagnosis and diagnostic examples (1) pump does not turn. Unidentified can not open the pump, so as not to aggravate the fault. Can be used to move hands and can not move. ①pump can move without turning. The reason can be coupling failure; belt slippage; motor wiring is wrong; motor damage; no power and so on. ② can not panic or plate up very heavy, the reason can be because the starting pump temperature is too low, the pump oil viscosity is too high; design and manufacture of pump stop too much oil. Too much oil caused by the pump back to the oil too much (too much fuel, or water vapor condensation in the pump, or condensate in the exhaust pipe back to the pump); foreign matter in the pump (intake manifold welding (Copper sleeve, rotor, wall, pump cover, stator, bearings). (2) the pump temperature is too high. The fingers Low-grade exhaust valve measured near the maximum oil temperature exceeds the manual value.As the pump temperature will make a substantial decline in the viscosity of the pump oil, and the saturated vapor pressure of the pump oil to increase the maximum pressure of the pump and pumping The gas efficiency is reduced; the rubber parts are easily aged; the thermal expansion reduces the running clearance, especially the thickness direction of certain non-metallic rotary blades and the clearance of the copper sleeve inner hole, affecting the reliability of pump operation. The ambient temperature is too high, the intake air temperature is too high, the intake cooling device fails, the pump long-term continuous operation inlet pressure is too high; water cooling pump cooling water is insufficient, circulating water design is not good; temperature control water regulating valve failure, etc. (3) Oil leakage can occur in the shaft seal, fuel tank and Pump parts sealing surface, drain plug, oil standard, oil hole bulkhead, stator parts and support through-hole connections Department, the gas town valve (for example 2X-8) and other parts.Can be aging seals, improper installation, damage Failure, uneven surface, impurities, rough and loose castings, etc. If you stop the pump back to the oil, the oil will enter the gas town valve, gas valve may not leak oil. Homemade rubber mat, be sure to use oil-resistant rubber , According to the original design shape, the sealing surface is too large when the pressure is not tight will leak. (4) Water leakage can occur in the water pipe joints, water jacket boring cover plane, drain hole screw plug, drain valve, Casting defects, cracking, may also lead to water leakage. (5) High power over standard. Can be long-term continuous for the inlet pressure is too high, the exhaust pressure is too high, debris into the occlusion occurs, the pump temperature is too high, Too small, the voltage is too high, the pump fluid is too much back into the pump caused by damage to the motor should be avoided in the vicinity of the maximum power long-term continuous operation. If there is sediment on the surface, to be regularly removed for removal. Pressure is not up to standard , Internal leakage, blockage of oil hole, poor or bad quality of pump oil, deterioration of water, condensable substances such as water vapor, distortion of instrumentation, abnormal pump operation, etc. When the leakage is large, white steam can be seen through the exhaust port. There are more bubbles in the standard place, the hand can feel the exhaust pressure on the exhaust port, the low-level exhaust valve has more air bubbles on the oil surface, and the power will increase.At this point, first check whether the air-ballast valve is closed. Because the new pump factory in the pump each port to measure the ultimate pressure, so if the leakage phenomenon, the pump port and the pipeline, valves, containers one by one inspection. Outside the shaft seal failure, the oil cup oil-free, gas-tight head can also leak Resulting in leakage.The internal leakage can be caused by the movement of the pump clearance, exhaust valve seat plane, the exhaust valve sealing surface, the shaft seal, pump cover plane, intake pipe, gas valve seals, etc .. Wear, corrosion, occlusion Will make the running clearance increase.Oil blocking, open the refueling hole to listen, the pump noise will be lighter, in the case of a good seal, if the hand on the exhaust port has been sucked feeling, the exhaust valve may fail. If the pump oil clean, unused long-term storage, open the town valve to purify the water vapor pump. If invalid, should check apricot meter. If the pump oil yellow and white has emulsified, the gas can be fully open the town, adjust the atmosphere to purify the operation, if necessary, the amount of gas into the pump port operation, can speed up the purification process. If other volatile gases or liquids are pumped, please change the oil in time and wash the oil tank if necessary. Some pumps, in the interstital airway will be deposited pump fluid, in order to obtain a good oil change effect, to find ways to drain the pump fluid. The ultimate pressure is measured using a seat compression mercury vacuum gauge. Measured values ​​increase with a full pressure gauge such as a calibrated thermocouple gauge. Note the regulation of the thermocouple gauge to be paired. It is advisable to back up a calibration that is calibrated at the same time for comparison against any suspected contamination regulation. Increasing the ultimate pressure will decrease the pumping efficiency during high vacuum and will also raise the ultimate total pressure. Can refer to the above description to determine, check, deal with the decline in pumping efficiency and the ultimate pressure rise of the failure. (7) noise. Pump structure design, the motor and pump bearing noise, rotating pieces and other moving parts are smooth, too much oil into the fan, the noise generated by the transmission, a large intake, open air town operation, the oil pan and other pumps Loose parts, inequitable installation caused by vibration, will affect the pump noise. (8) fuel injection. To prevent the injection of fuel tank back to the oil hole size, location, sealing conditions, oil retaining plate design, installation, exhaust part of the mist reducer, oil cap, gas separator, the level of oil into the oil The amount of the size, will affect the pump fuel injection, pump open air pumping, direct pump exhaust air flow rate can be as high as 30m / s, blowing the oil surface, the pump circulating oil and air out of the oil Will test the measures to prevent fuel injection. 7, other. Some pumps have oil pumps, oil separators, check valves on oil lines, mist eliminators, inlet filters (for oil vapor return flow), inlet dust filters and other components or accessories, as well as checks . Pump failure will pump lubrication and seal failure, mist eliminator failure, it is possible to make the exhaust pressure increases, the power increases, damage to the motor, inlet filter failure can increase the intake resistance, pumping speed decline, pumping Decreased efficiency. 8, cleaning. Should not be dipped, so as to avoid the spill into the splicing internal, difficult to discharge. 9, disassembly. In accordance with the use of shouting recommendations and regulations to orderly carried out, remember the location, reasonable display, so as to avoid wrong equipment.
The present invention provides a multifunctional pull faucet, comprising: a faucet body, a drawing part is provided at the water outlet port thereof, and the drawing part is connected to a main channel, wherein at least three are provided in the faucet body A branch channel, and the three branch channels are all connected to the main channel. A multifunctional pull faucet provided by the present invention, wherein the hot water channel, the cold water channel and the water purification channel (pure water channel) are all connected to the main channel , And the main channel is connected with the drawing part on the main body of the faucet, so that the drawing part can obtain the water quality (hot water, cold water, purified water or pure water) required by different users, thereby improving the user experience, and , By integrating the hot water channel, cold water channel and pure water channel (pure water channel) into the main channel, the internal structure of the faucet is simplified, and the production cost of the faucet is reduced.
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