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Interactive-cleaning seawater filtering device based on differential pressure detection

A filter device and pressure difference technology, which is applied in the field of interactive cleaning seawater filter devices based on pressure difference detection, can solve problems such as energy consumption, and achieve the effect of saving electric energy

Inactive Publication Date: 2018-09-04
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the pressure difference inside and outside the filter element cannot be detected to determine whether the filter element is clogged, frequent interactive flushing will be required, which will cause energy consumption, which is especially unfavorable for self-contained marine detection equipment

Method used

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  • Interactive-cleaning seawater filtering device based on differential pressure detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: Normal seawater filtration with double filter elements

[0017] like figure 1 As shown, the interactive cleaning seawater filter device adopts a double filter element structure, and seawater enters the upper filter element 5 and the lower filter element 7 from two directions at the same time. During normal operation, the two filter elements simultaneously filter seawater, which also increases the filtration capacity; Alternative cleaning seawater filter device, including water inlet, water outlet, upper sewage outlet, lower sewage outlet, upper water inlet pipe 1, upper water inlet valve 2, upper sewage valve 3, upper pressure difference detector 4, upper filter element 5, method Blue clapboard 6, following filter core 7, water outlet valve 8, housing 9, lower water inlet pipeline 10, lower water inlet valve 11, lower sewage valve 12, lower differential pressure detector 13.

[0018] The seawater flowing in from the water inlet is divided into upper and lowe...

Embodiment 2

[0021] Embodiment 2: interactive cleaning working mode

[0022] like figure 1 As shown, the interactive cleaning is divided into two working modes: upper filter cleaning and lower filter cleaning. Whether to clean the filter element is determined according to the detection value of the pressure difference detector, and cleaning is performed when the detection value is greater than or equal to a set threshold value. The cleaning of the upper filter element and the cleaning of the lower filter element are carried out alternately, which can realize the cleaning of the upper filter element 5 and the lower filter element 7, and achieve the purpose of automatic sewage discharge without manual cleaning;

[0023] The detected values ​​of the upper differential pressure detector 4 and the lower differential pressure detector 13 are all greater than or equal to the set threshold value, the filter element with a large detected value is cleaned first, and the filter element with a small ...

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Abstract

The invention relates to an interactive-cleaning seawater filtering device based on differential pressure detection. The interactive-cleaning seawater filtering device comprises a water inlet, a wateroutlet, an upper sewage outlet, a lower sewage outlet, an upper water inlet pipeline, an upper water inlet valve, an upper blowoff valve, an upper differential pressure detector, an upper filter element, a flange partition plate, a lower filter element, a water outlet valve, a shell, a lower water inlet pipeline, a lower water inlet valve, a lower blowoff valve and a lower differential pressure detector. The basic principles of the interactive-cleaning seawater filtering device are that a double-filter element structure is adopted; two differential pressure detectors are arranged to respectively detect the differences of interior and exterior pressures of the two filter elements; whether the two filter elements are to undergo interactive cleaning is determined according to the detected pressure differences; and if the pressure differences are greater than or equal to a set threshold, cleaning of a corresponding filter element is carried out, or otherwise, only seawater is filtered. Thus, frequent interactive cleaning can be avoided, so energy is saved, sewage discharge is automatically achieved, manual cleaning is not needed, and the service life of filter screens is prolonged.

Description

technical field [0001] The invention belongs to the technical field of marine detection, and in particular relates to an interactive cleaning seawater filter device based on pressure difference detection, which can detect the pressure difference between the inside and outside of the filter element to determine whether to flush the filter element, avoiding the power consumption of frequent flushing , to achieve the purpose of energy saving. Background technique [0002] Seawater filtration device is an indispensable key equipment to ensure the normal operation of marine detection equipment, which can filter out impurities, sediment, plankton and other large-volume particles in seawater. Interactive cleaning can remove the attachments inside and on the surface of the filter to ensure the long-term use of the filter. However, if the pressure difference inside and outside the filter element cannot be detected to determine whether the filter element is clogged, frequent interact...

Claims

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Application Information

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IPC IPC(8): B01D29/31B01D29/54B01D29/60B01D29/66
CPCB01D29/31B01D29/54B01D29/606B01D29/66
Inventor 米智楠陈龙安张伦伟金璐黄再轩
Owner TONGJI UNIV