Notched wire, notched wire element and filtration apparatus
A filter device and steel wire technology, which is applied in the direction of filtration separation, fixed filter element filter, separation method, etc., can solve the problems of increased flow resistance, reduced strength of notched steel wire, and reduced durability, and achieve the effect of improving strength
Active Publication Date: 2012-05-30
KANAGAWA KIKI KOGYO CO LTD
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Problems solved by technology
[0006] However, in order to reduce the particle size (particle diameter) of the foreign matter in the fluid captured by the notch wire unit, the height of the protrusion must be reduced to reduce the height of the gap, but the opening ratio of the gap becomes smaller due to the reduction of the height of the protrusion. The result is an increase in flow resistance
In order to prevent such an increase in flow resistance, it is necessary to reduce the thickness of the strip on which the protrusions are formed to increase the overall opening ratio. However, if the thickness of the strip is reduced, the strength of the notch wire will decrease. Therefore, reduce durability
Method used
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Embodiment Construction
[0026] Embodiments of the present invention will be described below with reference to the drawings.
[0027] The main body 1 of the filtering device of the present embodiment is as figure 1 As shown, it is formed into a substantially cylindrical shape with a truncated conical bottom, and an inflow port 1a for filtering fluid to be filtered is provided on its upper surface 1c, and a curved surface 1d at the bottom is provided with a direction for the filtered fluid to flow. Outlet 1b for external discharge. The lower end of the rod-shaped fixing member 2 passes through and is fixed on the lower surface 1 e of the bottom of the main body 1 , and the fixing member 2 is erected vertically in the main body 1 .
[0028] The filter frame 3 is disposed in the main body 1 so that its central axis is coaxial with the central axes of the fixing member 2 and the main body 1 . The filter frame 3 (filter cartridge) is arranged with a substantially circular upper plate 3a and a substantial...
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A notched wire 4 that is disposed in layers in a filtration apparatus. First projection stripes 4 d are formed on the top surface 4 b of a base 4 a at prescribed intervals in the longitudinal direction of the base 4 a so as to extend in the width direction of the base 4 a. Second projection stripes 4 e are formed approximately at the centers of the first projection stripe 4 d so as to extend between the first projection stripes 4 d. 4 d. The second projection stripes 4 e are projection stripes having an approximately semicircular cross section, for example. The second projection stripes 4 e is smaller in height than the first projection stripes 4 d, and the width of the second projection stripes 4 e is shorter than the length of the first projection stripes 4 d.
Description
technical field [0001] The invention relates to a notched steel wire, a notched steel wire unit and a filter device using the notched steel wire unit. Background technique [0002] Conventionally, a steel wire unit has been used for the filter screen of the filter device. The wire of the wire unit has a wedge shape and a round shape, but in recent years, a wire called a notch shape (hereinafter referred to as a notch wire) has attracted attention. The notched wire is formed by arranging protrusions at predetermined intervals on one side of a strip formed of a material such as stainless steel with excellent strength and corrosion resistance. The notched wire unit (hereinafter referred to as the notched wire unit) is The notched steel wire is helically wound around, for example, a cylindrical filter cartridge so that the upper and lower sides are in contact with each other. By passing the fluid to be filtered through the gaps formed by the recesses between the protrusions of...
Claims
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IPC IPC(8): B01D29/48
Inventor 高桥秀人潘忠诚
Owner KANAGAWA KIKI KOGYO CO LTD