CN218306523U - Circulation type filter with self-cleaning function - Google Patents

Abstract

The application discloses circulation type filter with self-cleaning function, which comprises an outer shell, the stainless steel filters the core, it has flange to weld in the lower extreme outside of shell, flange's lower surface is connected with down seal installation end cover, the last top welding of shell has last seal installation end cover, the protruding end welding of seal installation end cover has hollow inner skleeve down, inside and its same axle center of inner skleeve are provided with, lower both ends stretch into the inside stainless steel of seal installation end cover and last seal installation end cover respectively and filter the core, go up seal installation end cover and last compression joint threaded connection, lower seal installation end cover and last compression joint threaded connection, be connected with water purification outlet connection pipe in the lower extreme outside of shell. The utility model is used for solve among the prior art filter and use the back pollutant jam on the surface of filter for a long time, just can clear up after need pulling down the filter, the clearance process is loaded down with trivial details to and the aquatic bubble after the filtration has more influence measuring result's problem.

Description

Circulation type filter with self-cleaning function

Technical Field

The utility model relates to a filter technical field, in particular to circulation type filter with self-cleaning function.

Background

Chemical Oxygen Demand (COD) is the amount of reducing substances to be oxidized and reduced in a water sample by Chemical measurement, and refers to the Oxygen equivalent of substances (generally organic substances) that can be oxidized by a strong oxidant in wastewater, wastewater treatment plant effluent and contaminated water. In the prior art, a chemical oxygen demand tester is required to be used for measuring the COD content in wastewater so as to meet the requirements of sewage treatment plants, environmental monitoring and other occasions.

However, the suspensibility pollutant in the sewage is more, and the bubble in the water is more, these all can exert an influence to measuring, so can set up the filter in water sample sampling equipment, filter the suspensibility pollutant in the sewage, all be with stopping formula filter at present as leading to, nevertheless block formula filter and easily take place to block up under the more condition of pollutant, just can clear up after needing to pull down the filter, lead to the cleaning process loaded down with trivial details, and still need the loss piece of renew cartridge after long-time the use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a circulation type filter with self-cleaning function for the pollutant blocks up on the surface of filter after solving among the prior art long-time use of filter, just can clear up after need pulling down the filter, and the clearance process is loaded down with trivial details, and there is more problem that influences measuring result in the aquatic bubble after the filtration.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions: the utility model provides a circulation type filter with self-cleaning function, includes that shell, stainless steel filter element, its characterized in that: the stainless steel filter core comprises a shell, a connecting flange, a lower sealing installation end cover, a threaded hole, a lower pressing joint, a first sealing filler, a hollow inner sleeve, an inner sleeve and a stainless steel filter core, wherein the connecting flange is welded on the outer side of the lower end of the shell, the lower surface of the connecting flange is fixedly connected with the lower sealing installation end cover through bolts, the upper top end of the shell is welded with the upper sealing installation end cover, the upward protruding end of the lower sealing installation end cover extends into the shell and is attached to the inner wall surface of the shell, the stepped through hole close to the downward side is provided with a stepped through hole, the threaded hole of the lower sealing installation end cover is internally threaded with the lower pressing joint, the first sealing filler is arranged between one end, extending into the lower sealing installation end cover, of the lower pressing joint and the inner surface of the stepped through hole of the lower sealing installation end cover, the hollow inner sleeve is welded with the protruding end of the lower sealing installation end cover, a gap is reserved between the outer wall of the inner sleeve and the inner wall of the shell, the outer end cover can be connected with a sewage inlet pipeline, the stainless steel filter core is arranged in the same axis of the inner sleeve, and the stainless steel filter core extends into the upper sealing installation end cover and the lower sealing installation end cover respectively; open the inside of going up the seal installation end cover has the ladder through-hole, and is close to the through-hole of one side that makes progress and sets up to the screw hole, and the screw hole female connection who goes up the seal installation end cover has last gland packing, goes up to gland packing and stretches into and is provided with the second gland packing between the internal surface of the ladder through-hole of the inside one end of last seal installation end cover and last seal installation end cover, and the sewage outlet pipe way can be connected to the outer end that goes up gland packing, and the stainless steel filter core includes: stainless steel filters gauze, goes up stainless steel pipe, stainless steel pipe down, and stainless steel filters gauze and sets up to multilayer surrounding structure, has welded stainless steel pipe and stainless steel pipe down respectively at the upper and lower both ends of stainless steel filtration gauze, is connected with the water purification export connecting pipe in the lower extreme outside of shell, and water purification export connecting pipe connects outside flow cell.

Further, in the embodiment of the present invention, the upper top end of the stainless steel filter gauze is higher than the upper top end of the inner sleeve, the lower stainless steel tube extends downward from the lower surface of the first sealing filler, and the outer surface of the lower stainless steel tube is attached to the inner wall surface of the first sealing filler; the upper stainless steel pipe extends upwards out of the upper surface of the second sealing filler, and the outer surface of the upper stainless steel pipe is attached to the inner wall surface of the second sealing filler.

Further, in the embodiment of the present invention, a stainless steel compression ring is disposed between the surface of the first sealing filler and the surface of the lower pressing joint, and a stainless steel compression ring is also disposed between the surface of the second sealing filler and the surface of the upper pressing joint, and the inner diameter of the stainless steel compression ring is greater than the inner diameters of the first sealing filler and the second sealing filler.

Further, in the embodiment of the present invention, the first sealing packing and the second sealing packing are made of rubber.

Further, in the embodiment of the present invention, a gasket is disposed between the connecting flange and the lower seal mounting end cover.

Furthermore, in the embodiment of the present invention, the number of the surrounding layers of the stainless steel filtering gauze is N, N is greater than 3, and the mesh size on the stainless steel filtering gauze is 2 μm.

The beneficial effects of the utility model are that: sewage is getting into this section in-process of shell inside from the sewage outlet outflow through sewage entry, through the inner skleeve, stainless steel filters the gauze, in-process sewage that sewage flows can filter the gauze through stainless steel and slowly outwards permeate the formation water purification, make the water purification filter the gauze downstream along stainless steel and be full of the inner skleeve, outside overflow behind the liquid level surpass inner skleeve top edge, the water purification that the overflow came out flows out through water purification outlet connection pipe, guarantee that the water purification has a stable process in the filter, avoid rivers torrent to produce the bubble and exert an influence to measuring. Utilize even mesh in hole on the stainless steel filter screen at the sewage flow in-process, the pollutant that exists in the sewage can not hang on the surface of stainless steel filter screen, has reduced the bonding fastness between pollutant and the stainless steel filter screen, improves automatically cleaning effect.

Drawings

The present application is further described below with reference to the drawings and examples.

Fig. 1 is a schematic diagram of an overall structure of a flow-through filter with a self-cleaning function according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of the lower end portion of fig. 1 after the structure is enlarged.

Fig. 3 is a schematic view of an enlarged structure of an upper end portion of fig. 1.

Fig. 4 is a schematic structural view of a stainless steel filter element of a flow-through filter with a self-cleaning function according to an embodiment of the present invention.

1. Outer shell 2, inner sleeve 3 and first sealing filler

4. Connecting flange 5, lower pressing joint 6 and lower seal mounting end cover

7. Stainless steel clamping ring 8, purified water outlet connecting pipe 9 and stainless steel filter element

91. Upper stainless steel pipe 92, lower stainless steel pipe 93, stainless steel filtering gauze

10. An upper compression joint 11, an upper seal mounting end cover 12 and a second seal packing

Detailed Description

In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of certain embodiments of the invention and are not to be construed as limiting the scope of the invention, which is defined by the appended claims.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

As shown in figures 1 and 4, a flow-through filter with a self-cleaning function comprises a shell 1 and a stainless steel filter element 9, wherein a connecting flange 4 is welded at the outer side of the lower end of the shell 1, a lower seal mounting end cover 6 is fixedly connected to the lower surface of the connecting flange 4 through a bolt, an upper seal mounting end cover 11 is welded at the upper top end of the shell 1, specifically, a gasket is arranged between the connecting flange 4 and the lower seal mounting end cover 6, the sealing property between the connecting flange 4 and the lower seal mounting end cover 6 is improved through the gasket to prevent liquid from flowing out from a gap at a joint, the upward protruding end of the lower seal mounting end cover 6 extends into the shell 1 and is attached to the inner wall surface of the shell, a step through hole is formed in the lower seal mounting end cover 6, and the through hole close to the downward side is a threaded hole, the threaded hole female connection of lower seal installation end cover 6 has lower compression joint 5, lower compression joint 5 stretches into and is provided with first gland packing 3 between the one end of lower seal installation end cover 6 inside and the internal surface of the ladder through-hole of lower seal installation end cover 6, the protruding end welding of seal installation end cover 6 has hollow inner skleeve 2 down, leave the interval between the outer wall of inner skleeve 2 and the inner wall of shell 1, and the last top of inner skleeve 2 is less than the last top of shell 1, sewage inlet pipeline can be connected to the outer end of lower compression joint 5, be provided with stainless steel filter element 9 in the inside of inner skleeve 2 rather than same axle center, and stainless steel filter element 9 is last, lower both ends stretch into the inside of last seal installation end cover 11 and lower seal installation end cover 6 respectively.

As shown in fig. 1, 2, 3, and 4, a stepped through hole is opened in the upper seal mounting end cap 11, and a through hole close to the upward side is provided as a threaded hole, an upper compression joint 10 is connected in the threaded hole of the upper seal mounting end cap 11, a second seal filler 12 is provided between one end of the upper compression joint 10 extending into the inner part of the upper seal mounting end cap 11 and the inner surface of the stepped through hole of the upper seal mounting end cap 11, specifically, the first seal filler 3 and the second seal filler 12 are made of rubber, a stainless steel compression ring 7 is provided between the surface of the first seal filler 3 and the surface of the lower compression joint 5, a stainless steel compression ring 7 is also provided between the surface of the second seal filler 12 and the surface of the upper compression joint 10, and the inner diameter of the stainless steel compression ring 7 is greater than the inner diameters of the first seal filler 3 and the second seal filler 12.

The stainless steel filter element 9 includes: stainless steel filters gauze 93, stainless steel pipe 92 down, go up stainless steel pipe 91, stainless steel filters gauze 93 and sets up to multilayer surrounding structure, the number of surrounding layers is N, N is greater than 3, stainless steel pipe 91 and stainless steel pipe 92 down have been welded respectively to stainless steel filters the upper and lower both ends of gauze 93, the upper extreme of stainless steel filters gauze 93 is higher than the upper extreme of inner skleeve 2, the mesh size on stainless steel filters gauze 93 is 2 mu m, utilize the even mesh in sewage flow process in the hole on stainless steel filters gauze 93, the pollutant that exists in the sewage can not hang on the surface of stainless steel filters gauze 93, the bonding fastness between pollutant and the stainless steel filters gauze 93 has been reduced, improve the automatically cleaning effect. The lower stainless steel tube 92 extends downwards out of the lower surface of the first sealing filler 3, and the outer surface of the lower stainless steel tube 92 is attached to the inner wall surface of the first sealing filler 3; the upper stainless steel pipe 91 extends upwards to the upper surface of the second sealing filler 12, and the outer surface of the upper stainless steel pipe 91 is attached to the inner wall surface of the second sealing filler 12.

When the upper compression joint 10 and the lower compression joint 5 are screwed into the upper seal installation end cover 11 and the lower seal installation end cover 6 respectively through threads, the first seal packing 3 and the second seal packing 12 are squeezed by the force applied to the stainless steel compression ring 7 by the lower compression joint 5 and the upper compression joint 10, the surfaces of the inner ring downward stainless steel pipe 92 and the upper stainless steel pipe 91 are attached to form a fixed position and sealed, the stability of penetration of sewage during flowing is improved, and meanwhile, damage to the first seal packing 3 and the second seal packing 12 caused by the screwing process of the upper compression joint 10 and the lower compression joint 5 can be reduced by the stainless steel compression ring 7 (because if the stainless steel compression ring 7 is not arranged during screwing, one end of the upper compression joint 10 and one end of the lower compression joint 5 can directly contact the surfaces of the first seal packing 3 and the second seal packing 12, and a screwing mark is formed on the surfaces of the first seal packing 3 and the second seal packing 12), the outer end of the upper compression joint 10 can be connected with a sewage outlet pipeline, an outlet connecting pipe is connected with the outer side of the outer end of the shell 1, and a purified water outlet is connected with a flow tank.

The utility model discloses the theory of operation as follows: the lower compression joint 5 is connected with an external sewage inlet pipeline, the upper compression joint 10 is connected with an external sewage outlet pipeline, the purified water outlet connecting pipe 8 is connected with an external flow cell (not shown in the figure), sewage flows into the stainless steel filter element 9 through the lower compression joint 5, then flows into the sewage outlet pipeline through the upper compression joint 10, and finally flows into the external sewage pool to perform sewage circulation flow. The effluent velocity of passing through control valve sewage inlet pipeline when sewage flows through stainless steel filter element 9, thereby can control sewage and filter the inside velocity of flow of core 9 at stainless steel, sewage can form the water purification through the outside infiltration of mesh of stainless steel filtration gauze 93 at the in-process that flows when sewage is in the velocity of flow of settlement, the water purification moves down along the surface of stainless steel filtration gauze 93 until being full of inner skleeve 2, overflow outside after the water purification liquid level surpasss the upper edge of inner skleeve 2, the water purification that the overflow came out passes through water purification export connecting pipe flow direction flow to the flow-through cell, measure through chemical oxygen demand appearance (this is prior art, here do not do the perk).

When the pollutant clearance is carried out to the one side that needs filter gauze 93 contact sewage to the stainless steel, with water purification export connecting pipe 8 and outside water purification pipeline intercommunication, let outside water purification reverse inflow shell 1's inside, when the water purification liquid level that flows in is higher than inner skleeve 2's top edge, water purification reverse osmosis advances stainless steel filter gauze 93, thereby get into the inside of stainless steel filter element 9, make the pollutant that adheres to at stainless steel filter gauze 93 internal surface break away from, then the water purification that has the pollutant flows through wasing the drain pipeline, realize the reverse washing of stainless steel filter gauze 93, improve the life cycle of stainless steel filter element 9, reduce and maintain intensity.

Sewage is getting into this section in-process of 1 inside follow sewage outlet outflow of shell through the sewage entry, through inner skleeve 2, stainless steel filters gauze 93, the in-process sewage that flows at the sewage can filter gauze 93 through stainless steel and slowly outwards permeate the formation water purification, make the water purification filter gauze 93 downstream along stainless steel be full of inner skleeve 2, exceed inside sleeve 2 top edge back outside overflow at the liquid level, the water purification that the overflow goes out flows through water purification export connecting pipe, guarantee that the water purification has a stable process in the filter, avoid the torrent production bubble of rivers to exert an influence to measuring.

Although the illustrative embodiments of the present application have been described above to enable those skilled in the art to understand the present application, the present application is not limited to the scope of the embodiments, and various modifications within the spirit and scope of the present application defined and determined by the appended claims will be apparent to those skilled in the art from this disclosure.

Claims (6)

1. The utility model provides a circulation type filter with self-cleaning function, includes that shell, stainless steel filter core, its characterized in that:

a connecting flange is welded on the outer side of the lower end of the shell, the lower surface of the connecting flange is fixedly connected with a lower sealing installation end cover through bolts, an upper sealing installation end cover is welded on the upper top end of the shell, the upward protruding end of the lower sealing installation end cover extends into the shell and is attached to the inner wall surface of the shell, a step through hole is formed in the lower sealing installation end cover, a threaded hole is formed in the through hole close to the downward side of the lower sealing installation end cover, a lower compression joint is connected in the threaded hole of the lower sealing installation end cover in a threaded manner, a first sealing filler is arranged between one end, extending into the lower sealing installation end cover, of the lower compression joint and the inner surface of the step through hole of the lower sealing installation end cover, a hollow inner sleeve is welded on the protruding end of the lower sealing installation end cover, a gap is reserved between the outer wall of the inner sleeve and the inner wall of the shell, the upper top end of the inner sleeve is lower than the upper top end of the shell, the outer end of the lower compression joint can be connected with a sewage inlet pipeline, a stainless steel filter core is arranged in the inner sleeve and the same axis as the axis of the inner sleeve, and the stainless steel filter core extends into the upper sealing installation end cover and the lower sealing installation end cover;

the inside of going up seal installation end cover is opened there is the ladder through-hole, and is close to the through-hole of one side that makes progress and sets up to the screw hole, the screw hole internal thread of going up seal installation end cover is connected with and is compressed tightly the joint, it stretches into to go up to compress tightly the joint go up the inside one end of seal installation end cover with be provided with the sealed filler of second between the internal surface of the ladder through-hole of last seal installation end cover, the outer end that goes up to compress tightly the joint can connect sewage outlet pipe way, the stainless steel filter core includes: stainless steel filters gauze, goes up stainless steel pipe, stainless steel pipe down, stainless steel filters gauze and sets up to multilayer surrounding structure the upper and lower both ends of stainless steel filters gauze weld respectively go up stainless steel pipe with stainless steel pipe down the lower extreme outside of shell is connected with the water purification export connecting pipe, water purification export connecting pipe connects outside circulation tank.

2. A flow-through filter having a self-cleaning function as claimed in claim 1, wherein the upper top end of the stainless steel filter gauze is higher than the upper top end of the inner sleeve, the lower stainless steel tube protrudes downward from the lower surface of the first packing, and the outer surface of the lower stainless steel tube is attached to the inner wall surface of the first packing;

the upper stainless steel pipe extends upwards to the upper surface of the second sealing filler, and the outer surface of the upper stainless steel pipe is attached to the inner wall surface of the second sealing filler.

3. A flow-through filter having a self-cleaning function as claimed in claim 1, wherein a stainless steel crimp ring is disposed between the surface of the first packing and the surface of the lower compression fitting, and a stainless steel crimp ring is disposed between the surface of the second packing and the surface of the upper compression fitting, the stainless steel crimp ring having an inner diameter greater than the inner diameters of the first and second packing.

4. A flow-through filter having a self-cleaning function as claimed in claim 3, wherein the first and second packing materials are rubber.

5. A flow-through filter having a self-cleaning function as claimed in claim 1, wherein a gasket is provided between the attachment flange and the lower seal mounting end cap.

6. A flow-through filter having a self-cleaning function according to claim 1, wherein the number of surrounding layers of the stainless steel filter screen is N, N is more than 3, and the mesh size on the stainless steel filter screen is 2 μm.

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