CN213433870U - High-recovery-rate ultrafiltration system - Google Patents

Abstract

The utility model relates to a water processing technique field specifically is a high recovery ultrafiltration system, including super water filter tank, milipore filter and cylinder, super water filter tank's outer skin weld has the inlet tube, the one end welding that super water filter tank's surface deviates from the inlet tube has last drain pipe and lower drain pipe, and the drain pipe sets upin the below of last drain pipe down, the drain pipe deviates from down, and the one end of drain pipe is connected with diversion box down, super water filter tank's inside is fixed with the milipore filter, super water filter tank's inside movable mounting has the anti-subassembly that washs, the anti-subassembly that washs includes the mount, there is the balladeur train at the both ends of mount all sliding connection, and the balladeur train passes through the bolt fastening on super water filter tank's inner wall, the inside of mount is inserted and is equipped with intake pipe and backwashing water pipe, the one end of intake pipe is fixed with the air gun. The utility model discloses have the gas of turning over and wash the structure, improved the rate of recovery of producing water, reduced the cost of system.

Description

High-recovery-rate ultrafiltration system

Technical Field

The utility model relates to a water treatment technical field specifically is a high rate of recovery ultrafiltration system.

Background

Ultrafiltration is one of membrane separation technologies using pressure as a driving force, i.e., a small molecular solute and a solvent pass through a special membrane with a certain aperture under a certain pressure, so that the large molecular solute cannot permeate through the membrane and stays on one side of the membrane, thereby partially purifying a large molecular substance, wherein ultrafiltration is between microfiltration and nanofiltration, and no obvious boundary exists between the microfiltration membrane and the nanofiltration, generally, the aperture of an ultrafiltration membrane is between 0.05 μm and 1nm, the operating pressure is 0.1 to 0.5Mpa, and the ultrafiltration membrane is mainly used for intercepting and removing large molecular substances such as suspended matters, colloids, particles, bacteria, viruses and the like in water, is widely applied in many fields such as drinking water deep treatment, industrial ultrapure water treatment, waste water recycling, waste water zero discharge, solution concentration and separation and the like, and an ultrafiltration system generally comprises a clear water tank, an ultrafiltration water inlet pump, an ultrafiltration device, an ultrafiltration water production tank, a membrane, an ultrafiltration backwashing water pump, a sodium hypochlorite, alkali and acid dosing device and a chemical cleaning device.

Traditional ultrafiltration system is because the ultrafiltration membrane need carry out online backwash every 20 ~ 60min, this has just consumed a large amount of ultrafiltration and has produced water, does not make water simultaneously among the ultrafiltration backwash process for the water recovery rate is lower is produced to the whole of ultrafiltration, how can reduce ultrafiltration system's the water consumption of producing, reduces ultrafiltration backwash operating time, becomes how to improve ultrafiltration system recovery rate key factor, therefore needs a high recovery rate ultrafiltration system of design to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high rate of recovery ultrafiltration system to it is lower to solve the whole water recovery rate of producing of the ultrafiltration that proposes in the above-mentioned background art, how can reduce ultrafiltration system's the water consumption of producing, reduces the problem of ultrafiltration backwash operating duration.

In order to achieve the above object, the utility model provides a following technical scheme: a high recovery rate ultrafiltration system comprises an ultrafiltration water tank, an ultrafiltration membrane and a cylinder, wherein an inlet pipe is welded on the outer surface of the ultrafiltration water tank, an upper drainage pipe and a lower drainage pipe are welded at one end of the outer surface of the ultrafiltration water tank, which deviates from the inlet pipe, a water distribution box is connected at one end of the lower drainage pipe, a ultrafiltration membrane is fixed inside the ultrafiltration water tank, a backwashing component is movably mounted inside the ultrafiltration water tank, the backwashing component comprises a fixed frame, two ends of the fixed frame are both slidably connected with a sliding frame, the sliding frame is fixed on the inner wall of the ultrafiltration water tank through bolts, an air inlet pipe and a backwashing water pipe are inserted into the fixed frame, an air gun is fixed at one end of the air inlet pipe, a water gun is fixed at one end of the backwashing water pipe, and the air gun and the water gun are both arranged inside the, the upper surface of ultrafiltration water tank is fixed with the cylinder, the output of cylinder passes through the screw and is fixed with the upper surface connection of mount.

Preferably, one side of the inner wall of the ultrafiltration water tank, which is far away from the water inlet pipe, is an inclined surface.

Preferably, the upper drainage pipe is sleeved with a first electromagnetic valve, and the lower drainage pipe is sleeved with a second electromagnetic valve.

Preferably, both ends of the fixing frame are integrally connected with sliding blocks, the inner wall of the sliding frame is smooth, and the sliding blocks are connected with the sliding frame in a sliding mode.

Preferably, the top end of the back flush water pipe is sleeved with a sealing sleeve, and the sealing sleeve is embedded on the outer surface of the ultrafiltration water tank

Preferably, the outer surface of the water distribution box is fixedly provided with a booster pump through a screw, the input end of the booster pump is communicated with the inner cavity of the water distribution box through a guide pipe, and the output end of the booster pump is fixedly connected with the top end of the backwashing water pipe through a guide pipe.

Compared with the prior art, the beneficial effects of the utility model are that: the high-recovery-rate ultrafiltration system has a reverse gas cleaning structure, improves the recovery rate of produced water, and reduces the manufacturing cost of the system.

(1) Through being fixed with the balladeur train in one side of milipore filter to sliding connection has the mount in the balladeur train, slides from top to bottom in the balladeur train through the mount, and air gun blowout high-pressure gas can blast the milipore filter, need not to set up the backwash water pump, need not to consider the water yield that does not produce in backwash water yield and the backwash time, has improved the rate of recovery of producing water from this, and the milipore filter subassembly scale can reduce 10%, and the reducible 5% of ultrafiltration system inflow.

(2) And a backwashing water pump and a matched pipeline valve are omitted, the operation mode is simpler, and the manufacturing cost of the system is reduced.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic side view and cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is a schematic top view of the anti-cleaning assembly of fig. 2 according to the present invention.

In the figure: 1. an ultrafiltration water tank; 2. a water inlet pipe; 3. ultrafiltration membranes; 4. an upper drainage pipe; 5. a back-cleaning assembly; 501. a fixed mount; 502. a carriage; 503. an air gun; 504. an air inlet pipe; 505. a water gun; 506. backwashing the water pipe; 507. sealing sleeves; 508. a slider; 6. a lower drainage pipe; 7. a water distribution box; 8. and a cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: a high recovery rate ultrafiltration system comprises an ultrafiltration water tank 1, an ultrafiltration membrane 3 and a cylinder 8, wherein the outer surface of the ultrafiltration water tank 1 is welded with a water inlet pipe 2, one end of the outer surface of the ultrafiltration water tank 1, which is deviated from the water inlet pipe 2, is welded with an upper drainage pipe 4 and a lower drainage pipe 6, the lower drainage pipe 6 is arranged below the upper drainage pipe 4, one end of the lower drainage pipe 6, which is deviated from the lower drainage pipe 6, is connected with a water distribution box 7, the inside of the ultrafiltration water tank 1 is fixed with the ultrafiltration membrane 3, the ultrafiltration membrane 3 adopts an external pressure type mesoporous fiber membrane, the material is made of an improved hydrophilic PVDF membrane, the membrane has high mechanical strength, high chemical tolerance and high chlorine resistance, a backwash water,

the reverse cleaning component 5 is movably mounted inside the ultrafiltration water tank 1, the reverse cleaning component 5 comprises a fixing frame 501, two ends of the fixing frame 501 are connected with sliding frames 502 in a sliding mode, the sliding frames 502 are fixed on the inner wall of the ultrafiltration water tank 1 through bolts, an air inlet pipe 504 and a reverse flushing water pipe 506 are inserted into the fixing frame 501, one end of the air inlet pipe 504 is fixed with an air gun 503, the air gun 503 is internally and uniformly distributed by a row of membrane component air scrubbing gun heads, the scrubbing flow rate of each membrane component air scrubbing gun head is 8-10Nm3/hr, the air scrubbing period is 20-60min, the maximum air inlet pressure is 0.2MPa, the pollution and blockage of water inlet to an ultrafiltration membrane are reduced through air scrubbing, and the cleaning frequency of the ultrafiltration membrane.

One end of the back flush water pipe 506 is fixed with a water gun 505, the air gun 503 and the water gun 505 are both arranged inside the ultrafiltration water tank 1, the upper surface of the ultrafiltration water tank 1 is fixed with a cylinder 8, and the output end of the cylinder 8 is connected and fixed with the upper surface of the fixing frame 501 through a screw.

Furthermore, one side of the inner wall of the ultrafiltration water tank 1, which is far away from the water inlet pipe 2, is an inclined plane, so that water flow can conveniently flow from top to bottom.

Furthermore, a first electromagnetic valve is sleeved on the upper water discharge pipe 4, and a second electromagnetic valve is sleeved on the lower water discharge pipe 6 and used for controlling the water discharge switches of the upper water discharge pipe 4 and the lower water discharge pipe 6.

Further, both ends of the fixing frame 501 are integrally connected with a sliding block 508, the inner wall of the sliding frame 502 is smooth, and the sliding block 508 is slidably connected with the sliding frame 502, so that the fixing frame 501 can slide in the sliding frame 502 through the sliding block 508.

Furthermore, a sealing sleeve 507 is sleeved at the top end of the back flush water pipe 506, and the sealing sleeve 507 is embedded on the outer surface of the ultrafiltration water tank 1, so that the sealing performance between the back flush water pipe 506 and the fixing frame 501 is improved.

Furthermore, a booster pump is fixed on the outer surface of the water distribution box 7 through screws, the input end of the booster pump is communicated with the inner cavity of the water distribution box 7 through a guide pipe, the output end of the booster pump is fixedly connected with the top end of the backwashing water pipe 506 through a guide pipe, sodium hypochlorite and hydrochloric acid can be added into the water distribution box 7, the mixture in the water distribution box 7 is pressurized by the booster pump and then discharged into the backwashing water pipe 506, the mixture is sprayed onto the ultrafiltration membrane 3 through a water gun 505, the ultrafiltration membrane 3 can be chemically cleaned, the ultrafiltration membrane module is cleaned in a maintenance manner, the cleaning frequency is once every two days, the cleaning time is 30min, the cleaning flow range of the water gun 505 is 30LMH, as a backwashing water pump is omitted, agents such as sodium hypochlorite and hydrochloric acid are added into the water distribution box 7 for the maintenance chemical cleaning, the content of the sodium hypochlorite is 440ppm, the rise of the pressure difference of the ultrafiltration membrane is reduced.

The working principle is as follows: when the device is used, a water supply pipe of a water tank to be treated is connected with a water inlet pipe 2, sewage is discharged into an ultrafiltration water tank 1, water is subjected to ultrafiltration through an ultrafiltration membrane 3, part of purified water is discharged through an upper water discharge pipe 4, and part of purified water flows into a water distribution tank 7 through a lower water discharge pipe 6 to be stored for backwashing.

When the backwashing is needed, only the cylinder 8 needs to be electrified, the cylinder 8 drives the fixing frame 501 to slide up and down in the sliding frame 502, the electromagnetic valve of the external air supply pipe is opened, air is led into the air gun 503 through the air inlet pipe 504, high-pressure air is sprayed out, and the ultrafiltration membrane 3 can be blasted, so that the backwashing device is practical.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides a high recovery rate ultrafiltration system, includes ultrafiltration water tank (1), milipore filter (3) and cylinder (8), its characterized in that: the outer surface welding of ultrafiltration water tank (1) has inlet tube (2), the one end welding that the surface of ultrafiltration water tank (1) deviates from inlet tube (2) has upper drain pipe (4) and lower drain pipe (6), and lower drain pipe (6) set up in the below of upper drain pipe (4), the one end that lower drain pipe (6) deviates from lower drain pipe (6) is connected with water diversion box (7), the inside of ultrafiltration water tank (1) is fixed with milipore filter (3), the inside movable mounting of ultrafiltration water tank (1) has anti-cleaning assembly (5), anti-cleaning assembly (5) include mount (501), both ends of mount (501) all sliding connection have carriage (502), and carriage (502) are fixed on the inner wall of ultrafiltration water tank (1) through the bolt, intake pipe (504) and back flush water pipe (506) are inserted to the inside of mount (501), the one end of intake pipe (504) is fixed with air gun (503), the one end of back flush water pipe (506) is fixed with squirt (505), air gun (503) all set up in the inside of ultrafiltration water tank (1) with squirt (505), the last fixed surface of ultrafiltration water tank (1) has cylinder (8), the output of cylinder (8) passes through the screw and is fixed with the upper surface connection of mount (501).

2. A high recovery ultrafiltration system according to claim 1, wherein: one side of the inner wall of the ultrafiltration water tank (1) far away from the water inlet pipe (2) is an inclined plane.

3. A high recovery ultrafiltration system according to claim 1, wherein: the upper drain pipe (4) is sleeved with a first electromagnetic valve, and the lower drain pipe (6) is sleeved with a second electromagnetic valve.

4. A high recovery ultrafiltration system according to claim 1, wherein: both ends of the fixing frame (501) are integrally connected with sliding blocks (508), the inner wall of the sliding frame (502) is smooth, and the sliding blocks (508) are connected with the sliding frame (502) in a sliding mode.

5. A high recovery ultrafiltration system according to claim 1, wherein: the top of back flush water pipe (506) is overlapped with seal cover (507), and seal cover (507) is embedded on the surface of ultrafiltration water tank (1).

6. A high recovery ultrafiltration system according to claim 1, wherein: the outer surface of the water distribution box (7) is fixed with a booster pump through screws, the input end of the booster pump is communicated with the inner cavity of the water distribution box (7) through a guide pipe, and the output end of the booster pump is fixedly connected with the top end of the backwashing water pipe (506) through the guide pipe.

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