【文章內(nèi)容簡介】 g of shaft seal water pipeline and watercooling pipeline are seen Figure7. The Shaft seal water Watercooling Figure 7 Arrangement of shaft seal water pipelineThe pressure of shaft seal water should be puted according as the following formula.Table 1 Pressure and Capacity of shaft seal waterSealing TypeThe Pressure of shaft seal water Pi’(Mpa)The flow of shaft seal water （m3/h）G1/4”G3/8”G1/2”G3/4”Expeller Seal （Ⅰstage pump)Pi’=1~~22~33~5Packing SealPi’=(i1/3)PMechanical SealPi’=P出+ pump flow 1%, when the flow is large choose small values, flow is small choose big value , but the minimum shaft seal water quantity not less than 1 m3 / h Note: This Table is suitable to single stage pump. When the suction pressure of pump is 0 (Pin=0), the pressure of shaft seal water is equal to the half of the pressure of pump exit (P’=1/2Pout). The pressure of watercooling is between ～, the capacity is between 1～3 m/h.The type of watercooling see Table 2.Table 2 Type of Packing, watersealing and watercooling No.ModelPacking Specification(mm) ssssSsSSpecificatioSpecificationpecification Specification （mm）(mm)Shaft Seal Pipe JointCooling Water Pipe Joint 1300ZJ—Ⅰ—A1002222636G3/4″G1/2″2300ZJ—Ⅰ—A953300ZJ—Ⅰ—A902222605G3/4″G1/2″4300ZJ—Ⅰ—A855300ZJ—Ⅰ—A701919502G1/2″G1/2″6300ZJ—Ⅰ—A657300ZJ—Ⅰ—A568250ZJ—Ⅰ—A1032222605G3/4″G1/2″9250ZJ—Ⅰ—A9610250ZJ—Ⅰ—A9011250ZJ—Ⅰ—A8512250ZJ—Ⅰ—A8313250ZJ—Ⅰ—A8014250ZJ—Ⅰ—A7815250ZJ—Ⅰ—A751919502G1/2″G1/2″16250ZJ—Ⅰ—A7317250ZJ—Ⅰ—A7018250ZJ—Ⅰ—A6819250ZJ—Ⅰ—A6520250ZJ—Ⅰ—A6321250ZJ—Ⅰ—A6022200ZJ—Ⅰ—A852222605G3/4″G1/2″23200ZJ—Ⅰ—A751919502G1/2″G1/2″24200ZJ—Ⅰ—A7325200ZJ—Ⅰ—A701919455G1/2″G1/2″26200ZJ—Ⅰ—A6827200ZJ—Ⅰ—A6528200ZJ—Ⅰ—A6329200ZJ—Ⅰ—A6030200ZJ—Ⅰ—A5831150ZJ—Ⅰ—A7032150ZJ—Ⅰ—A6533150ZJ—Ⅰ—A6334150ZJ—Ⅰ—A6035150ZJ—Ⅰ—A5836150ZJ—Ⅰ—A5537150ZJ—Ⅰ—C5838150ZJ—Ⅰ—A5739150ZJ—Ⅰ—A501616364G1/2″G3/8″40150ZJ—Ⅰ—A4841150ZJ—Ⅰ—C4242100ZJ—Ⅰ—A5043100ZJ—Ⅰ—A4644100ZJ—Ⅰ—A421313308G1/2″G3/8″45100ZJ—Ⅰ—A3946100ZJG—Ⅰ—B4247100ZJ—Ⅰ—A36G3/8″G1/2″48100ZJ—Ⅰ—A334980ZJ—Ⅰ—A521616364G1/2″G3/8″5080ZJ—Ⅰ—A421313308G1/2″5180ZJ—Ⅰ—A395280ZJ—Ⅰ—A361313308G3/8″5380ZJ—Ⅰ—A335465ZJ—Ⅰ—A301010226G1/4″5565ZJ—Ⅰ—A275650ZJ—Ⅰ—A501616364G1/2″G3/8″5750ZJ—Ⅰ—A461313308G1/2″G3/8″5850ZJ—Ⅰ—A331010226G1/4″5940ZJ—Ⅰ—A1788163G1/4″(5)Packing selection①packing material and choose Asbestos packing with mica should be often used when the working pressure of pump is less than and asbestos packing with ploytetrafluoroethylene should be used when the pressure is more than MPa. ②The type of packing see Table 2.③Packing Requirement The packing standard should be accord with stuffing box size, and from the direction of shaft, joints of the adjacent packing rings included 120176。. (6) Mechanical seal Mechanical seal is a kind of end face seal, zero leakage, low power consumption, etc.Mechanical seal used in slurry pump special need to pay attention to the following questions:①Our factory adopts the mechanical seal is generally balanced double end face for special purpose, equipped with cooling water pipe, pressure gauge.②Professional mechanical seal factory made it for our factory, and factory has good installation and debugging, the user can no longer for debugging.③ Mechanical seal parts, import and export of shaft seal water, respectively, among them with the pump outlet in the same side as an outlet, the other side of the inlet.④ Before use the equipped mechanical seal pump must first turn on the shaft seal water, stop the pump 3 minutes rear can close the shaft seal water.⑤ Provide customers with mechanical seal of spare parts, according to a suite.⑥ Equipped with mechanical seal of pump and mechanical seal of spare parts when not in use for a long time, mechanical seal parts should include full N46 machine oil, to prevent rust and internal rubber parts failure mechanical seal parts.(7) The Requirement of add Lubricating oil Thin oil lubrication carrier should be in according to the oil standard oil line before driving position and N32 by mechanical blending (winter) or N46 oil (summer). Avoid by all means is oilfree drive!!!!!3. Adjustment of pumpWe examine and adjust pumps after assembly.(1) Adjustment of the interval between impeller and front liner (See Following)(2) Adjustment of rotation direction of motorMotor39。s direction of rotation must be in accordance with pump39。s direction of rotation. When pump operate in opposite direction, some parts will be damaged. After pumps are divorced from motors pletely, we can regulate motor direction of rotation. When they are in the same direction, we attach pumps to motors. We must not start motor blindly.(3) Adjustment of transmissionWhen pumps are drove by elastic pin coupling, protective cover and pins should be set up carefully. When pumps are drove by belt, we adjust sliding track so as that every belt has the same pretightening force and install protective cover attentively. When pumps are drove by speed controllers, they are adjusted according to installation instructions.(4) All of fasteners must be reinforced again.(5) Put the tools and the lumbers aside to avoid accident, which was set on pump units4. Test run of pumpsPump sets can be tested run after adjustment. If possible, slurry can be transported after test run with clear water.(1) Starting of pump① Before starting of pump we must turn the impeller around in the stated direction in order that whether running is flexible.② Switch on shaft seal water. Adjust pressur