Nanofiltration membrane flushing device
Technical Field
The utility model belongs to the technical field of water filtering equipment, and particularly relates to a nanofiltration membrane flushing device.
Background
Water is an important constituent substance in nature, and water recycling is an important way to alleviate water resource shortage, and the water resource recycling requires the hollow fiber nanofiltration membrane. Hollow fiber membranes are membranes that are fibrous in shape and have a self-supporting function. The hollow fiber membrane is a fiber yarn which is processed into a hollow inner cavity by taking dimethylacetamide as a main raw material and has the characteristic of selective permeation. Nanofiltration membranes are a functional semi-permeable membrane that allows the permeation of solvent molecules or certain low molecular weight solutes or low-valent ions. It is a special and promising variety of separation membranes, commonly used for removing organics from surface water and hardness of groundwater.
Chinese patent publication No. CN218981108U discloses a hollow fiber nanofiltration membrane structure capable of recycling, which comprises an external frame, a plurality of nanofiltration membrane filter cartridges are installed inside the external frame, nanofiltration membrane filter cartridge is internally provided with nanofiltration membrane bodies, a filtration membrane water inlet pipe is installed on the outer wall of the lower end of the nanofiltration membrane filter cartridge, a filtration membrane water outlet pipe is installed on the outer wall of the upper end of the nanofiltration membrane filter cartridge, a filter cartridge top seat is installed on the upper end of the nanofiltration membrane filter cartridge, a flushing component is connected inside the filter cartridge top seat, a filter cartridge base is installed at the lower end of the nanofiltration membrane filter cartridge, and a discharge component is connected inside the filter cartridge base.
The nanofiltration membrane structure in the prior art can play a role in flushing the nanofiltration membrane through the flushing nozzle arranged in the filter cartridge top seat, but in the actual use process, the flushing nozzle is single in structure, the part, close to the nozzle, of the nanofiltration membrane can be flushed cleanly, and the condition that flushing is not thorough can be caused for other parts of the nanofiltration membrane arranged in the nanofiltration membrane cartridge.
Disclosure of utility model
In view of the problems mentioned in the background art, an object of the present utility model is to provide a nanofiltration membrane washing device, so as to solve the problems mentioned in the background art.
The technical aim of the utility model is realized by the following technical scheme:
The nanofiltration membrane flushing device comprises a nanofiltration membrane filter cartridge, wherein a bottom shell is fixedly arranged at the lower end of the nanofiltration membrane filter cartridge through a screw, a drain pipe is fixedly arranged at the lower end of the bottom shell, a second electric control valve is arranged on the outer side of the drain pipe, a filter membrane water outlet pipe is fixedly connected to the upper half part of one side of the nanofiltration membrane filter cartridge, a filter membrane water inlet pipe is fixedly connected to the lower half part of one side of the nanofiltration membrane filter cartridge, first electric control valves are respectively arranged on the outer sides of the filter membrane water inlet pipe and the filter membrane water outlet pipe, a nanofiltration membrane filter element is fixedly arranged on the inner side of the nanofiltration membrane filter cartridge, a mounting shell is fixedly arranged at the upper end of the nanofiltration membrane filter cartridge, a cleaning spray pipe is rotatably connected to the inner side of the lower end of the mounting shell, a cleaning pipe joint is fixedly arranged on the inner side of the upper end of the mounting shell, the lower end of the cleaning pipe joint is rotatably connected to the inner side of the upper end of the cleaning spray pipe, and a rotating mechanism is fixedly arranged on the outer side of the cleaning spray pipe;
The rotating mechanism comprises mounting holes, the mounting holes are symmetrically formed in the inner side of the mounting shell, an L-shaped frame is fixedly arranged in the inner side of the mounting holes, an electric push rod is fixedly arranged at the right end of the L-shaped frame, the output end of the electric push rod movably penetrates through the right end frame wall of the L-shaped frame, a push block is fixedly arranged at the upper end of the L-shaped frame, a rack is fixedly arranged on the front side of the push block, a gear is fixedly arranged on the outer side of the cleaning spray pipe, the gear is in meshed connection with the rack, and the cleaning spray pipe can conveniently rotate and flush the blocking surface of the inner wall of the nanofiltration membrane filter cylinder through the rotating mechanism.
As the preferable technical scheme, the one end that drain was kept away from the drain pan is fixed with Y type filter, and the one end that drain was kept away from to Y type filter is fixed mounting has the connecting pipe, through the Y type filter of connecting on the drain, can be convenient to drain exhaust flushing sewage filtration.
As the preferred technical scheme, the upper end outer wall welding that receives the filter membrane and strains a section of thick bamboo has first flange, and the lower extreme welding of installing the shell has the second flange, and first flange passes through screw and second flange fixed mounting, and the seal groove has been seted up to the upper end of first flange, and the lower extreme and the seal groove of second flange insert to close and connect, through second flange and first flange, conveniently carry out the connection installation to installing the shell and receiving the filter membrane and strain a section of thick bamboo.
As the preferred technical scheme, the lower extreme tip of wasing the spray tube is closed form, and the nozzle of wasing the spray tube is down slope form, and the upper end inboard of wasing the spray tube is equipped with sealed bearing, and the upper end inboard of wasing the spray tube is rotated through sealed bearing and the lower extreme outer wall of wasing the coupling and is connected, and the inboard of receiving the filter membrane and straining a section of thick bamboo has the bracket through screw fixed mounting, and the upper end of wasing the spray tube is rotated and is connected in the upper end inboard of bracket, can be convenient better with receiving the filter membrane filter member and block up the face spot and clean through the nozzle downward slope of wasing the spray tube.
As the preferable technical scheme, the upper end of the L-shaped frame is provided with a dovetail groove, the lower end of the pushing block is connected to the inner side of the dovetail groove in a sliding way, and the pushing block can conveniently slide on the L-shaped frame through the dovetail groove.
In summary, the utility model has the following advantages:
Firstly, starting the pushing block to slide on the L-shaped frame through the output end of the electric push rod, so that a rack on the pushing block is meshed with a transmission gear, and meanwhile, a cleaning spray pipe connected with the gear rotates on a mounting shell, so that the blocking surface of a nanofiltration membrane filter piece in the nanofiltration membrane filter cartridge can be rotated and washed, and the cleaning effect of the nanofiltration membrane filter piece in the nanofiltration membrane filter cartridge can be greatly improved;
And the second flange on the mounting shell and the first flange on the nanofiltration membrane filter cartridge can be conveniently detached from the mounting shell and the nanofiltration membrane filter cartridge, and the cleaning spray pipe extending into the nanofiltration membrane filter cartridge is also conveniently maintained.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of the internal structure of a nanofiltration membrane cartridge of the present utility model;
FIG. 3 is a schematic view of a rotating mechanism according to the present utility model;
Fig. 4 is an enlarged view of fig. 3a of the present utility model.
The nano-filtration membrane filter cartridge comprises the following components of 1, a nano-filtration membrane filter cartridge, 2, a filter membrane water inlet pipe, 3, a filter membrane water outlet pipe, 4, a first electric control valve, 5, a bottom shell, 6, a drain pipe, 7, a second electric control valve, 8, a connecting pipe, 9, a Y-shaped filter, 10, a first flange, 11, a second flange, 12, a cleaning pipe joint, 13, a mounting shell, 14, a cleaning spray pipe, 15, a rotating mechanism, 151, a gear, 152, an L-shaped frame, 153, an electric push rod, 154, a push block, 155, a rack, 156, a mounting hole, 16, a nano-filtration membrane filter, 17, a sealing groove, 18, a sealing bearing, 19, a bracket, 20 and a dovetail groove.
Detailed Description
Referring to fig. 1 to 4, the nanofiltration membrane flushing device in this embodiment includes a nanofiltration membrane cartridge 1, a drain pipe 6 is fixedly mounted at the lower end of the nanofiltration membrane cartridge 1 through a screw, a second electric control valve 7 is disposed at the outer side of the drain pipe 6, a filter membrane outlet pipe 3 is fixedly connected to an upper half of one side of the nanofiltration membrane cartridge 1, a filter membrane inlet pipe 2 is fixedly connected to a lower half of one side of the nanofiltration membrane cartridge 1, first electric control valves 4 are disposed at the outer sides of the filter membrane inlet pipe 2 and the filter membrane outlet pipe 3, a nanofiltration membrane filter 16 is fixedly mounted at the inner side of the nanofiltration membrane cartridge 1, a mounting shell 13 is fixedly mounted at the upper end of the nanofiltration membrane cartridge 1, a cleaning spray pipe 14 is rotatably connected at the inner side of the lower end of the mounting shell 13, a cleaning pipe joint 12 is fixedly mounted at the inner side of the upper end of the mounting shell 13, and the lower end of the cleaning pipe joint 12 is rotatably connected at the inner side of the upper end of the cleaning spray pipe 14, and a rotating mechanism 15 is fixedly mounted at the outer side of the cleaning spray pipe 14;
The rotating mechanism 15 comprises mounting holes 156, the mounting holes 156 are symmetrically formed in the inner side of the mounting shell 13, an L-shaped frame 152 is fixedly arranged in the inner side of the mounting holes 156, an electric push rod 153 is fixedly arranged at the right end of the L-shaped frame 152, an output end of the electric push rod 153 movably penetrates through a right end frame wall of the L-shaped frame 152 and is fixedly provided with a push block 154, the push block 154 is slidably connected to the upper end of the L-shaped frame 152, a rack 155 is fixedly arranged on the front surface of the push block 154, a gear 151 is fixedly arranged on the outer side of the cleaning spray pipe 14, the gear 151 is in meshed connection with the rack 155, the push block 154 is started to slide on the L-shaped frame 152 through the output end of the electric push rod 153, the rack 155 on the push block 154 is meshed with the transmission gear 151, and meanwhile the cleaning spray pipe 14 connected with the gear 151 rotates on the mounting shell 13, so that a blocking surface of the nanofiltration membrane 16 in the nanofiltration membrane cartridge 1 can be rotationally flushed.
Referring to fig. 1, a Y-shaped filter 9 is fixedly installed at one end of the drain pipe 6 far away from the bottom shell 5, a connecting pipe 8 is fixedly installed at one end of the Y-shaped filter 9 far away from the drain pipe 6, and impurities in sewage can be conveniently filtered and collected by utilizing the Y-shaped filter 9 connected with the drain pipe 6.
Referring to fig. 2 and 3, a first flange 10 is welded on the outer wall of the upper end of the nanofiltration membrane cartridge 1, a second flange 11 is welded on the lower end of the installation shell 13, the first flange 10 is fixedly installed with the second flange 11 through screws, a sealing groove 17 is formed in the upper end of the first flange 10, the lower end of the second flange 11 is connected with the sealing groove 17 in an inserting mode, the second flange 11 on the installation shell 13 and the first flange 10 on the nanofiltration membrane cartridge 1 are utilized to facilitate the assembly and disassembly of the installation shell 13 and the nanofiltration membrane cartridge 1, a sealing ring is further arranged on the inner side of the sealing groove 17, and the sealing is achieved through extrusion after the first flange 10 and the second flange 11 are fixed.
Referring to fig. 3, the lower end of the cleaning spray pipe 14 is closed, the nozzle of the cleaning spray pipe 14 is inclined downwards, a sealing bearing 18 is arranged on the inner side of the upper end of the cleaning spray pipe 14, the inner side of the upper end of the cleaning spray pipe 14 is rotationally connected with the outer wall of the lower end of the cleaning pipe joint 12 through the sealing bearing 18, a bracket 19 is fixedly arranged on the inner side of the nanofiltration membrane filter cylinder 1 through a screw, the upper end of the cleaning spray pipe 14 is rotationally connected with the inner side of the upper end of the bracket 19, the inclined downward nozzle of the cleaning spray pipe 14 is utilized to conveniently and rapidly flush the blocking surface of the nanofiltration membrane filter 16, the lower end of the cleaning pipe joint 12 rotates at the sealing bearing 18 on the cleaning spray pipe 14, the sealing effect of the cleaning spray pipe 14 can be guaranteed, the lower end of the cleaning spray pipe 14 rotates at the bracket 19 arranged in the nanofiltration membrane filter cylinder 1, the stability of the cleaning spray pipe 14 can be improved, the limiting rotation of the cleaning spray pipe 14 is arranged on the inner side of the lower end of the mounting shell 13, a sealing disk is also arranged at the position close to the cleaning spray pipe 14, the circle center of the sealing disk is also arranged at the position of the sealing disk, one end of the cleaning spray pipe 14 close to the mounting shell 13 is rotated at the sealing bearing 18, and the sealing nozzle 14 is not flushed outside when the sealing valve 14 is rotated, and only water can be sprayed outside the sealing valve is guaranteed.
Referring to fig. 4, the upper end of the L-shaped frame 152 is provided with a dovetail groove 20, the lower end of the push block 154 is slidably connected to the inner side of the dovetail groove 20, and the stability of the push block 154 can be ensured by sliding the push block 154 in the dovetail groove 20 on the L-shaped frame 152, and the push block 154 is prevented from falling out of the L-shaped frame 152.
When the nanofiltration membrane filter cartridge 1 is used, water is fed into the nanofiltration membrane filter cartridge 1 through the filter membrane water inlet pipe 2, filtered through the inner ring surface of the nanofiltration membrane filter member 16, then discharged through the outer ring water and discharged through the filter membrane water outlet pipe 3, and when the inner wall blocking surface of the nanofiltration membrane filter member 16 is required to be washed;
During flushing, the first electric control valve 4 is completely closed, the second electric control valve 7 is opened, the output end of the electric push rod 153 is started to push the push block 154 to slide on the L-shaped frame 152, so that a rack 155 on the push block 154 is meshed with the transmission gear 151, meanwhile, the cleaning spray pipe 14 connected with the gear 151 rotates on the mounting shell 13, the upper end of the cleaning pipe joint 12 is connected with an external water conveying pipe to convey water into the cleaning spray pipe 14, and the cleaning water can quickly flush a filter surface blockage of the nanofiltration membrane filter 16 through an external row of inclined spray heads and is discharged through the drain pipe 6 connected with the bottom shell 5.