Automatic mixing sewage pump model meaning and the use of precautions

Automatic mixing sewage pump is based on the ordinary sewage pump with automatic mixing device, the device with the motor shaft rotation, resulting in strong mixing force, the sewage pool sediment stirred into a suspended matter, the suction pump discharge is the Obvious advanced and use of environmentally friendly products. Automatic mixing sewage pump type meaning and precautions (A) automatic mixing sewage pump model meaning 100 JYWQ 100-15-7.5 100 - pump outlet nominal diameter (mm) JY - with automatic mixing device WQ - submersible sewage Pump 100 - Rated flow rate (m3 / h) 15 - Rated head (m) 7.5 - Equipped with motor rated power (Kw) Example: 80JYWQ50-10-1600-380- Discharge diameter (mm) JYWQ- - flow (m3 / h) 10-head (m) 1600-mixing range (mm) 3-motor power (KW) (B) automatic mixing sewage pump Note (1) before operation megger to check the motor Stator winding insulation resistance to the ground, the minimum shall not be less than 50 megohms. (2) check the cable for damage, broken and so on. If damaged, it must be replaced in time to avoid leakage; cable cross-section should be matched with current. (3) Do not start the pump when the voltage exceeds ± 10% of the rated voltage. (4) In order to ensure the safe use, the ground wire in the four-core cable must be grounded reliably to prevent electric shock accident. (5) Electric pump dive into the water, should be lifted vertically, does not allow horizontal placement, but can not sink into the sludge. Stop using the pump should be lifted clean, placed in a dry place, and pay attention to antifreeze. (6) It is forbidden to use the cable as a lifting rope. (7) Check the direction of rotor operation, from top to bottom should be clockwise rotation. (8) Outdoor switches or terminals should be protected against rain and moisture. Do not touch the switch when wet or barefoot to prevent electric shock. (9) When moving the pump, it is necessary to cut off the power. During the operation, the pump should not touch the water to prevent personal accident. (10) It is forbidden to run the motor out of phase. If the fuse is found to be blown, check the cause before using it, and do not arbitrarily bold the fuse. (11) pump operation, there should be someone management, if there is an abnormal phenomenon should be immediately shut down to check and troubleshoot. (Referring to the end with automatic protection cabinet situation). (12) After six months of normal operation of the pump under the conditions of the specified working medium, the condition of the oil chamber should be checked. For example, if the oil in the oil chamber is milky or precipitated, mechanical oil and mechanical seals 10 to 20 should be promptly replaced. For the use of poor working conditions in the pump, it should be more regular maintenance. (13) The user should select the appropriate flow head according to the actual working conditions in order to achieve the best results. The parameters shown on the nameplate or manual of the pump are the best working condition points, and the user can choose between (0.7-1.2) Double the best use within the flow, prohibit the use of ultra-flow, otherwise the flow is too large, easy to overload the motor too low lift. Asia Fluid Network () Editor: Huang Nengwen, QQ:

Hitachi Elevator Spare Parts

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Hitachi has been developing and manufacturing elevators and escalators for about 90 years. Social demands on elevators and escalators changed dramatically over time: faster, larger, and barrier-free and required.

History of Hitachi's Elevator and Escalator Business

  • 1924Lift manufacturing at the Kameido plant
  • 1932First elevator delivered (to Tokyo Electric Power)
  • 1937First escalator delivered (to Osaka Railway Department Store)
  • 1956Hitachi Building Services Co., Ltd. founded (currently known as Hitachi Building Systems Co., Ltd.)
  • 1966Hitachi Elevator Engineering Co ., (Hong Kong) Ltd. founded in Hong Kong
  • 1967Construction of an elevator research tower in the Mito plant completed (90m in height)
  • 1968300m ⁄ minute ultra high speed elevator delivered to the Kasumigaseki Building, Japan's first skyscraper
  • 1972Hitachi Elevator Engineering (Singapore) Pte. Ltd. founded in Singapore
  • 1974Delivery of 540m ⁄ minute elevators to skyscrapers in Shinjuku
  • 1987Hitachi Mito Engineering Co., Ltd. founded
  • 1991Siam-Hitachi Elevator Co., Ltd. Founded in Thailand
  • 1998Three affiliated companies in China merged to found Guangzhou Hitachi Elevator Co., Ltd.
  • 2003Opened Hitachi Building Solution Lab
  • 2007Guangzhou Hitachi Elevator Co., Ltd. renamed to Hitachi Elevator (China) Co., Ltd.
  • 2008Hitachi Lift India Pvt. Ltd. foundedDelivered the world's highest class ultra fast double deck elevators to the Shanghai World Financial Center
  • 2009Introduction of the Company systems leads to the establishment of the Urban Planning and Development Systems Company
  • 2010Completed elevator research tower [G1TOWER" (213m in height) for Mito WorksFounded Hitachi Elevator Asia Pte. Ltd. as a general elevators and escalators business company for the Southeast Asia, India, and Middle East regionsCompleted elevator research tower (172m in height) for Hitachi Elevator (Shanghai) Co. Ltd.
  • 2011Founded Hitachi Elevator Philippines CorporationDelivered 600m ⁄ minute elevators to the Al Hamra Mixed-Use Complex in Kuwait.


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