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CN-122006487-A - Filter element of backflushing high-flow cartridge filter

CN122006487ACN 122006487 ACN122006487 ACN 122006487ACN-122006487-A

Abstract

The invention relates to the technical field of sewage purification devices and discloses a backwashing high-flow cartridge filter element which comprises an outer shell, wherein a filtering mechanism is arranged in the outer shell and comprises a water collecting pipe and a plurality of groups of filtering membranes, the groups of filtering membranes are spirally wound on the outer part of the water collecting pipe, a water producing side supporting layer is arranged in the filtering membranes, a water inlet side supporting layer is arranged on the outer part of the filtering membranes, the filtering membranes are arranged in a bag-shaped structure, a water producing side supporting layer is sandwiched between the two layers of membranes, the filtering membranes are welded through the water producing side supporting layer, one ends of the two layers of membranes are welded with the upper side and the lower side, and the filtering area is greatly increased by adopting a spiral winding structure compared with that of the traditional filter element.

Inventors

  • Yao Mengchen
  • SHI YULIN

Assignees

  • 山东坤宇环保科技有限公司

Dates

Publication Date
20260512
Application Date
20260329

Claims (9)

  1. 1. The filter element comprises an outer shell (1), wherein a filtering mechanism is arranged in the outer shell (1), the filter element is characterized by comprising a water collecting pipe (4) and a plurality of groups of filtering membranes (2), the filtering membranes (2) are spirally wound on the outer part of the water collecting pipe (4), a water producing side supporting layer (21) is arranged in the filtering membranes (2), a water inlet side supporting layer (22) is arranged on the outer part of the filtering membranes (2), the filtering membranes (2) are arranged into a bag-shaped structure, one water producing side supporting layer (21) is clamped between the two layers of membranes, the filtering membranes (2) are welded through the water producing side supporting layer (21), and one end of each of the two layers of membranes is welded with the upper side and the lower side; the outer side of the water collecting pipe (4) is uniformly provided with a water producing channel (41), the bag-shaped opening of the filtering membrane (2) is adhered to the water producing channel (41), and a water inlet side supporting layer (22) is sandwiched between the two groups of filtering membranes (2); the top fixedly connected with top cap (6) of shell body (1), the inside of top cap (6) is provided with gas-liquid mixing room (74), and gas-liquid mixing room (74) are used for pumping gas to collector tube (4).
  2. 2. The backflushing high-flow cartridge filter cartridge of claim 1, wherein the bottom of the outer shell (1) is fixedly connected with a water inlet pipe (3), the top of the outer shell (1) is fixedly connected with a water outlet pipe (8), the top of the water inlet pipe (3) is fixedly connected with a water inlet end cover (31), the water inlet end cover (31) is fixedly connected to the bottom of the outer shell (1), the water outlet pipe (8) is communicated with the top opening of the water collecting pipe (4), the upper side and the lower side of the filtering mechanism are respectively provided with a filter cartridge end cover (5), and the upper filter cartridge end cover (5) is abutted to the upper side and the lower side of the water inlet side supporting layer (22) and the filtering membrane (2).
  3. 3. The backwashable high-flow cartridge filter of claim 1, wherein the water-producing side support layer (21) is a diamond-shaped mesh, two layers of membranes of the filtering membrane (2) are welded on two sides of the water-inlet side support layer (22), the water-inlet side support layer (22) is two groups of parallel trapezoidal meshes, and the two groups of trapezoidal meshes are in fit and movable connection.
  4. 4. The backwashable high-flow cartridge filter of claim 3, wherein the water inlet side supporting layer (22) comprises a vertical rod (221), a trapezoid block (222) is fixedly connected to the outside of the vertical rod (221), a transverse rod (223) is fixedly connected to the outside of the trapezoid block (222), a group of the vertical rods (221), the trapezoid block (222) and the transverse rod (223) form a group of trapezoid hole nets, the trapezoid hole nets are thick in the vertical rod (221) and thin in the transverse rod (223), polishing fillets are formed on the surface of the transverse rod (223), and the transverse rod (223) is used for laminating and supporting the surfaces of the two groups of filtering membranes (2).
  5. 5. The backwashable high-flow cartridge filter cartridge of claim 4, wherein the two groups of trapezoid hole meshes of the water inlet side supporting layer (22) respectively comprise a long connecting plate (224) and a short connecting plate (225), the long connecting plate (224) is movably attached to the short connecting plate (225), the long connecting plate (224) and the short connecting plate (225) penetrate through the cartridge end cover (5) and extend to the inside of the top cover (6), the end part of the short connecting plate (225) is fixedly connected with a supporting plate (23), the long connecting plate (224) penetrates through the supporting plate (23), the end part of the long connecting plate (224) is fixedly connected with an inner partition plate (24), the outer side of the inner partition plate (24) is fixedly connected with a sealing ring (241), the sealing ring (241) is slidably connected to the inside of the top cover (6), an inner sleeve ring (231) is fixedly connected to the center position of the short connecting plate (225), and a driving mechanism (9) for driving the inner partition plate (24) and the inner sleeve ring (231) to be separated or close to each other is arranged between the inner partition plate (24) and the inner sleeve ring (231).
  6. 6. The backwashable high-flow cartridge filter of claim 5, wherein the driving mechanism (9) comprises a driving ring (91) fixedly connected to the outside of the water outlet pipe (8), an inner driving groove (911) is formed in the inner side of the driving ring (91), an outer driving groove (912) is formed in the outer side of the driving ring (91), an inner driven ring (92) is movably connected to the inside of the driving ring (91), an outer driven ring (93) is movably connected to the outer side of the driving ring (91), the inner driven ring (92) is fixedly connected to the outside of the inner collar (231), the outer driven ring (93) is fixedly connected to the outside of the inner partition board (24), and driving pin blocks for sliding connection between the inner driving groove (911) and the inner driving groove (912) are arranged on the outer sides of the inner driven ring (92) and the outer driven ring (93).
  7. 7. The backwashable high-flow cartridge filter of claim 6, wherein a driving device for driving the water outlet pipe (8) to rotate is arranged outside the water outlet pipe (8), the water outlet pipe (8) and the water collecting pipe (4) are rotationally connected, the inner driving groove (911) and the outer driving groove (912) are respectively provided with an inclined notch, the notches of the inner driving groove (911) and the outer driving groove (912) are inclined in opposite directions, and the driving ring (91) drives the inner driven ring (92) and the outer driven ring (93) to be in an alternately up-down moving state through the inner driving groove (911) and the outer driving groove (912).
  8. 8. The backwashable high-flow cartridge filter cartridge of claim 5, wherein a gas pipe (7) is arranged outside the top cover (6), a tee joint (71) is fixedly connected to the end part of the gas pipe (7), a gas guide branch pipe (72) and a telescopic pipe (73) are respectively arranged outside the tee joint (71), the gas guide branch pipe (72) is communicated with a gas-liquid mixing chamber (74), a gas guide ring (75) is fixedly connected to the movable end of the telescopic pipe (73), the gas guide ring (75) is fixedly arranged at the top of the inner partition plate (24), and the gas guide ring (75) is communicated with a cavity between the inner partition plate (24) and the supporting plate (23).
  9. 9. The backwashable high-flow cartridge filter of claim 8, wherein the outer air guide grooves (226) are formed in the vertical rods (221) of any one group of trapezoid hole networks of the water inlet side supporting layer (22), the outer air guide grooves (226) are formed by combining the vertical rods (221) of the two groups of trapezoid hole networks, the groove parts (227) are formed in the outer parts of one group of the vertical rods (221), the protruding block parts (228) are arranged in the outer parts of the other group of the vertical rods (221), the protruding block parts (228) are matched with the groove parts (227), when the protruding block parts (228) are clamped into the groove parts (227), the vertical rods (221) of the two groups of trapezoid hole networks are attached, when the protruding block parts (228) are staggered with the groove parts (227), gaps communicated with the outside are formed in the outer air guide grooves (226), and movable clips are arranged at the bottoms of the vertical rods (221) of the two groups of trapezoid hole networks and are used for keeping the bottoms of the vertical rods (221) of the two groups of trapezoid hole networks attached when the bottom ends of the two groups of trapezoid hole networks are staggered.

Description

Filter element of backflushing high-flow cartridge filter Technical Field The invention relates to the technical field of sewage purification devices, in particular to a backflushing high-flow cartridge filter element of a cartridge filter. Background In the industries of chemical industry, electronics, pharmacy and the like, in order to ensure water safety, liquid filtration is usually required, the scene that different industries have higher requirements on water quality is met, and the traditional liquid filtration field usually adopts a melt-blown filter element and a folding filter element. In the Chinese patent with the patent publication number of CN104984580B, a filter element is disclosed, which comprises an outer sleeve, an inner sleeve, a stainless steel sealing plate and a filter screen, wherein the inner sleeve is used as a supporting frame of the filter screen, the inner sleeve is made of stainless steel hollow round steel, and a bevel of 2.5 multiplied by 45 degrees is arranged at the corner of the inner sleeve. The middle part of the inner sleeve is provided with a filter screen mounting hole, the filter screen is sleeved on the filter screen mounting hole on the inner sleeve, the outer sleeve is sleeved on the filter screen to compress the filter screen, the filter screen is a double-layer stainless steel filter screen made of stainless steel materials, and the filter screen is changed from an original single layer to a double layer, so that the filter accuracy of the filter core is improved. Said invention sets up double-deck filter layer, through double-deck filter layer improvement filtration precision, but whole filter layer and sewage area of contact are limited, make sewage filtration area less to lead to filtration efficiency reduction, and in the filtration process, the filter layer outside extremely produces the pollutant very easily and piles up, thereby leads to the filter layer to block up, makes filter core life reduce, in order to guarantee filtration precision simultaneously, the filtration micropore aperture setting of inlayer filter layer is less, and whole filtration area is limited, and then leads to filtration efficiency further reduction, can't be applicable to large-traffic filterable demand. The filter element back flushing mechanism based on the filter is arranged in a filter shell and comprises a filter element seat and a filter element, wherein a water inlet connector is arranged on the side face of the filter shell, an upper water inlet hole and a lower water inlet hole which are communicated with the water inlet connector are formed in the inner wall of the filter shell, a positioning sleeve is arranged on the bottom face of the filter shell, a water outlet is formed in the bottom face of the filter shell, a plurality of water inlet grooves are formed in the side face of the filter element seat, a connecting sleeve is formed by extending the lower end of the filter element seat, the connecting sleeve is in sliding sealing connection with the positioning sleeve, the lower end of the filter element seat is in sliding sealing connection with the positioning sleeve, an end cover is arranged at the upper end of the filter shell, a filter element seat lifting mechanism is arranged on the end cover, a lifting sealing assembly is arranged at the lower end of the connecting sleeve, a lower connecting ring is arranged on the outer side of the connecting sleeve, the lower connecting ring is in sliding sealing connection with the inner wall of the filter shell, and a plurality of back flushing water inlet holes are formed in the lower side of the inner wall of the connecting sleeve. The filter element is backwashed by the pressure of tap water, thereby prolonging the service life. Said invention uses back flushing to clean the impurity on the outer layer of filter element, but directly uses backward flowing water flow to make backward cleaning, and uses the backward flowing water flow to make backward flowing water flow to flush the filter element micropore, and said cleaning mode can effectively clean the impurity in the micropore, but has limited cleaning effect for the impurity attached on the surface of filter element, and in the course of secondary filtering, the impurity attached on the surface of filter element can be easily blocked up the filter element micropore again so as to result in poor cleaning effect. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a backflushing high-flow cartridge filter element which has the advantages of high filtering efficiency, good backflushing effect of a filtering membrane and effective improvement of the filtering efficiency. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides a but large-traffic cartridge filter core of backwash, includes the shell body, and the inside of shell body is provided with filtering mech