A filter control device for a ship's ballast water system
A technology for ship ballast water and control equipment, applied in the direction of filtration and separation, chemical instruments and methods, separation methods, etc., can solve the problems of high backwash frequency, slow filtration speed, poor filtration effect, etc., and achieve good filtration effect and high filtration efficiency fast effect
Active Publication Date: 2016-08-24
QINGDAO HEADWAY TECH
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Problems solved by technology
However, due to the debris in the seawater, the filter is easily blocked during use, and the existing backwashing methods have problems such as being unable to clean the debris on the filter screen, resulting in high frequency of backwashing, poor filtering effect, and low filtration speed. slow
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[0014] Such as figure 1 A filter control device for a ship's ballast water system is shown, including a precision displacement transmitter 1, a flow regulating device 2, a backwash time selection switch 3, a power module 4, a control module 5, and an analog output module 6. Signal acquisition module 7, signal output module 8; the precision displacement transmitter 1 is arranged on the water inlet and outlet of the filter, collects the water inlet pressure and the water outlet pressure to form a displacement and transmits it to the signal acquisition module 7, and the signal The acquisition module 7 sends information to the control module 5 connected thereto; the flow regulating device 2 is connected to the filter outlet, and the backwash time selection switch 3 is connected to the control module 5 for setting the interval time of regular backwash The power supply module 4 provides power supply; the analog output module 6 is connected to the control module 5, receives the contr...
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The invention discloses filter control equipment for a ship ballast water system. The filter control equipment comprises a precise displacement transmitter, a flow adjusting device, a backwashing time selective switch, a power supply module, a control module, an analog quantity output module, a signal acquisition module and a signal output module, wherein the precise displacement transmitter is arranged on a water inlet and a water outlet of a filter to acquire a water inlet pressure and a water outlet pressure to form a displacement to be transmitted to the signal acquisition module; the signal acquisition module is used for transmitting information to the control module, the flow adjusting device is connect with the water outlet of the filter, the backwashing time selective switch is connected with the control module, the signal output module is connected with the control module to receive an instruction of the control module, and the instruction is output to a filter motor or a sewage valve connected with the control module. The filter control equipment is high in filter speed and good in filter effect; the problems that the filter is blocked by sundries in seawater in a use process and the sundries on a filter net cannot be cleaned by adopting an existing backwashing manner are solved.
Description
technical field [0001] The invention relates to a filter control device, in particular to a filter control device for a ship's ballast water system. Background technique [0002] Filtration is the most widely used water treatment method in the modern water treatment industry, especially in ship operation. In order to effectively control the spread of harmful aquatic organisms and pathogens in ship ballast water, the International Maritime Organization (IMO) passed the "International Ship Ballast Water and Sediments Control and Management Convention, which requires all ships to treat ballast water. Filtration technology is commonly used in existing ballast water treatment installations. However, due to the sundries in the seawater, the filter is easily blocked during use, and the existing backwashing methods have problems such as being unable to clean the sundries on the filter screen, resulting in high backwashing frequency, poor filtering effect, and low filtration speed. ...
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IPC IPC(8): B01D37/04
Inventor 孙大雷曹学良曹学磊
Owner QINGDAO HEADWAY TECH