Water pump and pipe protective device applied to high-corrosivity sewage reverse osmosis membrane process
A reverse osmosis membrane and protection device technology, applied in the field of water pumps and pipe fittings protection devices, can solve the problems of limited corrosion of pipe fittings, achieve simple equipment, easy management of equipment, and good results
Pending Publication Date: 2018-11-13
温州嘉伟环保科技有限公司
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Problems solved by technology
However, the existing technology is limited to the less corrosive water treatment process such as seawater, and its function is mainly to protect the water pump, and the protection for the corrosion of the pipe fittings of the water pump is very limited.
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[0013] The present invention will be further described below in conjunction with accompanying drawing.
[0014] Such as figure 1 As shown, the water pump and pipe fitting protection device for highly corrosive sewage reverse osmosis membrane method of the present invention includes a constant voltage DC power supply 1, a reference electrode 2, and the negative pole of the constant voltage DC power supply 1 is connected to the water inlet pump 3 or the high pressure pump 4 through a wire The positive pole of the constant voltage DC power supply 1 is connected with the reference electrode 2. Since the material of the pump housing and the metal parts in the pump of the water inlet pump 3 or the high pressure pump 4 is metal, the wires can be connected with the metal parts in the pump housing or the pump, and the metal parts in the pump can be impellers or other parts. The reference electrode 2 can be a graphite electrode, and the graphite electrode is inserted into the water out...
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The invention discloses a water pump and a pipe protective device applied to a high-corrosivity sewage reverse osmosis membrane process. The water pump comprises a constant-voltage direct-current power supply and a reference electrode; the cathode of the constant-voltage direct-current power supply is connected with a water feed pump or a high-pressure pump through a conductive wire; and the anodeof the constant-voltage direct-current power supply is connected with the reference electrode. According to the water pump disclosed by the invention, a cathode protection method is used for high-corrosivity protection of the water pump; a metal component, especially an impeller, of the water pump is in a low-potential state by virtue of an external power supply; the metal component and a pipe part of the water pump are protected from corrosion caused by losing electrons; the problem about corrosion of the water pump in a heavily-polluted corrosive sewage treatment system is solved; the waterpump has the advantages of being simple and convenient, convenient to manage, safe, reliable, good in effect and the like in actual application, and is advanced, practical and reliable.
Description
technical field [0001] The invention belongs to the field of sewage treatment, in particular to a water pump and pipe fitting protection device used in the reverse osmosis membrane method for highly corrosive sewage. Background technique [0002] In sewage treatment, especially highly corrosive sewage treatment, water pump is an extremely important machine equipment, and its normal and efficient operation plays a decisive role in the entire water treatment process. However, in general reverse osmosis membrane sewage treatment, multiple water pumps are in high-pressure and highly corrosive environments. Therefore, the water pumps are prone to corrosion during use, which affects the normal operation of reverse osmosis equipment. Frequent replacement of water pumps increases the The cost of water treatment. [0003] At present, the corrosion protection of water pumps, commonly used protection methods include coating and electrochemical protection methods. Coatings can be used...
Claims
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Login to View More IPC IPC(8): C23F13/06
CPCC23F13/06C23F2213/32C23F2213/30
Inventor 项鹏宇陈煜南张珺杨学志付赵跃陈芝海项诗然韦德权
Owner 温州嘉伟环保科技有限公司