A kind of corrosion-resistant filter element
Technical field
The invention belongs to filter technology field, be specifically related to a kind of corrosion-resistant filter element.
Background technology
Now, China's chemical plant liquid filtering majority adopts pure bag type filtering, and the filter bag used is polyphenylene sulfide filter bag, because single polyphenylene sulfide filter bag non-oxidizability is poor, the liquid case in chemical plant is comparatively complicated, when real work, filter bag is easily oxidized, damage, and fluid flow is larger, the service life of filter bag is shortened, what have even can only use some months, therefore needs the filter bag frequently more renewed, causes operating cost to increase.
Summary of the invention
For solving the problem, the invention discloses a kind of corrosion-resistant filter element, corrosion-resistant, good filtration effect, service time is long.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of corrosion-resistant filter element, it is characterized in that: the cylindrical stainless steel filter vat comprising upper opening, described filter vat top edge is provided with flange, there is the locking post of symmetry arrangement flange side, depression arc body is provided with above filter vat waist, filter bag is provided with in filter vat, described filter bag is formed by PTFE silk and short glass fiber blending, be attached on described flange above filter bag, stainless steel enhancement Layer is provided with above filter vat, described enhancement Layer upper strata is annular, lower floor is screen pack, the levels of stainless steel cylinder connection reinforcement layer, the external diameter 1-2mm less of filter vat internal diameter of described cylinder, cave in described in enhancement Layer lower floor aspect ratio the peak height 2-5mm of arc body, described enhancement Layer upper strata, above filter bag, flange all there is the through hole that position is identical, bolt is carried tightly with nut through after through hole.
As a modification of the present invention, described cylinder and enhancement Layer lower floor junction are fillet.
As a modification of the present invention, described filter bag thickness is 0.5-1mm.
As a modification of the present invention, described enhancement Layer upper strata diameter is identical with described flange.
As a modification of the present invention, the mesh of described enhancement Layer lower floor screen pack is 0.3-0.6mm.
As a modification of the present invention, the mesh of described filter bag is 0.02-0.05mm.
As a modification of the present invention, the mesh of described filter vat is 0.1-0.3mm.
The invention has the beneficial effects as follows:
Structure of the present invention is simple, convenient and practical, corrosion-resistant, and adopt three layer filtration, good filtration effect, and be crushed between stainless steel cylinder and filter vat above filter bag, shock-resistant, protect the place that filter bag is easily bad, service time is long.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is profile of the present invention.
Reference numerals list:
1, filter vat, 2, the mesh of filter vat, 3, depression arc body, 4, locking post, 5, filter bag, 6, bolt, 7, enhancement Layer, 8, nut, 9, cylinder, 10, enhancement Layer upper strata, 11, enhancement Layer lower floor, 12, fillet, 13, flange.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, illustrate the present invention further, following detailed description of the invention should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometric center respectively.
As shown in the figure, the corrosion-resistant filter element of one of the present invention, comprise the cylindrical stainless steel filter vat 1 of upper opening, the mesh of described filter vat 1 is 0.1-0.3mm, filter vat 1 top edge is provided with flange 13, and there is the locking post 4 of symmetry arrangement flange 13 side, and during use, 2 locking posts are stuck in the draw-in groove of filter, play the effect of fixing filter core, above filter vat 1 waist, be provided with depression arc body 3.
Filter bag 5 is provided with in filter vat 1, described filter bag 5 is formed by PTFE silk and short glass fiber blending, corrosion-resistant, the mesh of filter bag 5 is 0.02-0.05mm, good filtration effect, and flow is fast, filter bag 5 thickness is 0.5-1mm, be attached on described flange 13 above filter bag 5, stainless steel enhancement Layer 7 is provided with above filter vat 1, described enhancement Layer upper strata 10 is annular, lower floor 11 is screen pack, the mesh of screen pack is 0.3-0.6mm, the levels of stainless steel cylinder 9 connection reinforcement layer, the external diameter 1-2mm less of filter vat 1 internal diameter of described cylinder 9, be crushed between stainless steel cylinder and filter vat above filter bag, shock-resistant, protect the place that filter bag is easily bad, service time is long, cave in described in enhancement Layer lower floor 11 aspect ratio the peak height 2-5mm of arc body 3, even if flow senior general enhancement Layer lower floor 11 is dented, and even distortion, but just can hold at the peak stating depression arc body 3 at most, enhancement Layer lower floor can not be out of shape, in order to prevent cylinder 9 and enhancement Layer lower floor 11 junction, filter bag is damaged by pressure, described cylinder 9 and enhancement Layer lower floor 11 junction are fillet 12 by the present invention, protection filter bag, described enhancement Layer upper strata 10 diameter is identical with described flange 13, the through hole all having position identical above described enhancement Layer upper strata 10, filter bag 5, on flange 13, and bolt 6 is carried tightly with nut 8 through after through hole.
The corrosion-resistant filter element of one of the present invention, by flowed through liquid through three layer filtration, good filtration effect, and be crushed between stainless steel cylinder and filter vat above filter bag, shock-resistant, protect the place that filter bag is easily bad, service time is long.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, also comprises the technical scheme be made up of above technical characteristic.