CN216549885U

CN216549885U - Ultrafiltration device

Info

Publication number: CN216549885U
Application number: CN202220041504.8U
Authority: CN
Inventors: 邰磊
Original assignee: Wenzhou Kehao Light Industrial Machinery Co ltd
Current assignee: Wenzhou Kehao Light Industrial Machinery Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-05-17
Anticipated expiration: 2032-01-06

Abstract

The utility model discloses ultrafiltration equipment which comprises a sewage water tank connected with a sewage water inlet pipe, wherein a pre-filter is connected onto the sewage water tank, a plurality of ultrafiltration membranes are connected onto the pre-filter in parallel, the ultrafiltration membranes are connected with a clear water tank, a backwashing pump is connected onto the clear water tank, the backwashing pump is connected with cleaning inlets of the ultrafiltration membranes, cleaning outlets of the ultrafiltration membranes are connected with the sewage water tank, and a clear water discharging overflow pipeline is connected onto the clear water tank. The utility model has the following advantages and effects: the utility model is automatically controlled in the whole process, and manual interference is not needed, so that the production cost of enterprises is reduced, and the environment is protected to the greatest extent.

Description

Ultrafiltration device

Technical Field

The utility model relates to water treatment equipment, in particular to ultrafiltration equipment.

Background

Ultrafiltration is a membrane separation technique that purifies and separates a solution. The ultrafiltration membrane system is a solution separation device which takes ultrafiltration membrane filaments as a filter medium and takes the pressure difference between two sides of the membrane as a driving force. The ultrafiltration membrane only allows the solvent (such as water molecules), inorganic salt and small molecular organic matters in the solution to permeate, and retains suspended substances, colloids, proteins, microorganisms and other macromolecular substances in the solution, thereby achieving the purpose of purification or separation.

Ultrafiltration membranes are used in large quantities in water treatment projects. Ultrafiltration technology plays an increasingly important role in the fields of reverse osmosis pretreatment, drinking water treatment, reclaimed water reuse, printing and the like. The ultrafiltration technology plays a key role in the sterilization and turbidity removal of wines and beverages, pyrogen removal of medicines and the concentration process of foods and pharmaceutical products. The existing ultrafiltration equipment needs to be manually cleaned after long-term operation, and the cleaning mode greatly increases the workload of workers and the production cost of enterprises; and the cleaning mode can generate a large amount of waste water, and the environment protection can not be fundamentally realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide ultrafiltration equipment which does not need manual cleaning and can not cause a large amount of wastewater discharge, thereby reducing the production cost of enterprises and being environment-friendly to the greatest extent.

The technical purpose of the utility model is realized by the following technical scheme: the utility model provides an ultrafiltration equipment, is including the sewage tank who connects the sewage inlet tube, be connected with the prefilter on the sewage tank, the last parallel connection of prefilter has a plurality of milipore filters, and is a plurality of the milipore filter is connected with the clear water tank, be connected with anti-scavenging pump on the clear water tank, anti-scavenging pump is connected with the washing entry linkage of a plurality of milipore filters, and is a plurality of the washing export of milipore filter is connected with the sewage tank, be connected with clear water discharge overflow pipeline on the clear water tank.

Through adopting above-mentioned technical scheme, sewage passes through the sewage inlet tube and gets into the sewage tank, and sewage in the sewage tank gets into leading filter and carries out primary filtration, and sewage reposition of redundant personnel after the filtration advances a plurality of milipore filters and carries out secondary filtration, and clear water transmission after the filtration advances the clear water tank, and the clear water in the clear water tank supplies external equipment or discharges through clear water discharge overflow pipeline. When the ultrafiltration equipment needs to be cleaned, clear water in the clear water tank is pumped into the ultrafiltration membranes through the backwashing pump to clean the ultrafiltration membranes, and sewage generated by cleaning the ultrafiltration membranes flows back into the sewage tank through the cleaning outlet of the ultrafiltration membranes, so that the cleaning operation of the ultrafiltration equipment is completed. And the sewage in the sewage water tank is advanced in the washing backward flow can be filtered into the clear water again and carry out cyclic utilization to reduce the waste water volume because of wasing and discharging to a great extent, reduced the manufacturing cost of enterprise, do green in the at utmost.

Further setting the following steps: the cleaning device is characterized in that a second one-way valve is connected between the clean water tank and the backwashing pump, the sewage tank is connected with cleaning outlets of the ultrafiltration membranes in parallel through cleaning pipelines, and a second electromagnetic valve is connected between the cleaning pipelines and the sewage tank.

Through adopting above-mentioned technical scheme, the setting of second check valve prevents that water from flowing against the current and causing the pollution to the clear water tank, and the setting of second solenoid valve is used for controlling the rivers between the washing export of sewage water tank and milipore filter and flows, ensures entire system's stable operation.

Further setting the following steps: and a third electromagnetic valve is connected between the sewage water tank and the sewage water inlet pipe, and a feeding pump is connected between the sewage water tank and the pre-filter.

By adopting the technical scheme, the third electromagnetic valve is arranged for controlling the water inflow of the sewage, so that the normal operation of the system is ensured; the feeding pump provides power for the conveyed sewage, so that the sewage can be more smoothly conveyed towards the pre-filter, and the smooth operation of the system is ensured.

Further setting the following steps: the device comprises a feed pump, a sewage tank, a pre-filter, a plurality of ultrafiltration membranes, a water inlet pipeline, a third check valve, a first check valve, a third check valve and a second check valve, wherein the first check valve is connected between the feed pump and the sewage tank, the pre-filter is connected with the ultrafiltration membranes in parallel through the water inlet pipeline, and the third check valve is connected between the pre-filter and the water inlet pipeline.

Through adopting above-mentioned technical scheme, the setting of first check valve and third check valve is used for guaranteeing that sewage flows along operation direction one-way, prevents that it from appearing the normal motion that the adverse current influences the system.

Further setting the following steps: the clear water tank is connected with the plurality of ultrafiltration membranes in parallel through a clear water pipeline, and a first electromagnetic valve is connected between the clear water pipeline and the clear water tank.

Through adopting above-mentioned technical scheme, the setting of first solenoid valve is used for controlling the output of clear water, ensures the stable operation of system.

Further setting the following steps: the automatic cleaning device comprises a controller, be equipped with liquid level gauge and liquid level gauge under clear water in the clear water tank, be equipped with liquid level gauge and liquid level gauge under the sewage on the sewage in the sewage tank, liquid level gauge, sewage on the clear water under liquid level gauge, clear water all are connected with the controller with the sewage level gauge four under, the controller is connected with first solenoid valve, second solenoid valve, third solenoid valve, feed pump and anti-scavenging pump.

By adopting the technical scheme, when the lower sewage level meter detects that no sewage exists in the sewage tank, the controller controls the third electromagnetic valve to be opened, so that sewage enters the sewage tank, and reaches the upper sewage level meter for timing, and the controller controls the third electromagnetic valve to be closed. And then the controller controls the first electromagnetic valve to be opened and the second electromagnetic valve to be closed, the controller controls the feeding pump to be started, and the sewage in the sewage tank passes through the first one-way valve, the feeding pump, the pre-filter, the third one-way valve and the ultrafiltration membrane to form clean water and flows into the clean water tank through the first electromagnetic valve. When the water level in the clean water tank reaches the clean water level meter, the equipment stops.

When the device is to be reversely cleaned, the controller controls the feeding pump to be closed, the first electromagnetic valve to be closed and the reverse cleaning pump and the second electromagnetic valve to be opened after the controller detects water through the clear water lower liquid level meter, the clear water washes the ultrafiltration membrane through the second one-way valve and the reverse cleaning pump, and the waste water generated by washing returns to the sewage tank through the second electromagnetic valve so as to finish the reverse cleaning work. The process realizes full-process automatic control without human intervention.

Further setting the following steps: the filter is characterized in that a pre-filtering pressure transmitter is connected between the feed pump and the pre-filter, a post-membrane pressure transmitter is connected between the backwashing pump and the ultrafiltration membranes, a pre-membrane pressure transmitter is connected between the pre-filter and the water inlet pipeline, and the pre-filtering pressure transmitter, the post-membrane pressure transmitter and the pre-membrane pressure transmitter are connected with the controller.

By adopting the technical scheme, the system pressure is fed back by the cooperation among the pre-filter pressure transmitter, the post-membrane pressure transmitter and the pre-membrane pressure transmitter, so that the safe and stable operation of the system is ensured.

In conclusion, the utility model has the following beneficial effects: the utility model is automatically controlled in the whole process, and manual interference is not needed, so that the production cost of enterprises is reduced, and the environment is protected to the greatest extent.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

fig. 2 is a schematic block diagram of an embodiment.

In the figure: 1. a sewage inlet pipe; 2. a sewage tank; 3. a pre-filter; 4. ultrafiltration membranes; 5. a clear water tank; 6. a back washing pump; 7. clear water exits the overflow pipe; 8. a second one-way valve; 9. cleaning a pipeline; 10. a second solenoid valve; 11. a third electromagnetic valve; 12. a feed pump; 13. a first check valve; 14. a water inlet pipe; 15. a third check valve; 16. a clear water pipeline; 17. a first solenoid valve; 18. a controller; 19. a clear water level meter; 20. a clear water level meter; 21. a liquid level meter on the sewage; 22. a sewage level meter; 23. a pre-filter pressure transmitter; 24. a post-membrane pressure transmitter; 25. a pre-membrane pressure transmitter.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, an ultrafiltration apparatus comprises a sewage tank 2 connected with a sewage inlet pipe 1, a prefilter 3 connected to the sewage tank 2, a plurality of ultrafiltration membranes 4 connected in parallel at the outlet of the prefilter 3 through a water inlet pipe 14, a clean water tank 5 connected to the outlets of the ultrafiltration membranes 4, and a clean water pipeline 16 connected in parallel between the clean water tank 5 and the ultrafiltration membranes 4. Be connected with anti-scavenging pump 6 on the clear water tank 5, the washing entry linkage of 6 exports of anti-scavenging pump and a plurality of milipore filter 4, and the washing export of a plurality of milipore filter 4 is connected with sewage water tank 2, and sewage water tank 2 is parallelly connected through wasing pipeline 9 with the washing export of a plurality of milipore filter 4, is connected with clear water discharge overflow pipeline 7 on the clear water tank 5.

A second one-way valve 8 is connected between the clean water tank 5 and the backwashing pump 6, and a second electromagnetic valve 10 is connected between the cleaning pipeline 9 and the sewage tank 2. A third electromagnetic valve 11 is connected between the sewage water tank 2 and the sewage water inlet pipe 1, and a feeding pump 12 is connected between the sewage water tank 2 and the pre-filter 3. A first one-way valve 13 is connected between the feeding pump 12 and the sewage tank 2, and a third one-way valve 15 is connected between the pre-filter 3 and the water inlet pipeline 14. A first electromagnetic valve 17 is connected between the clean water pipeline 16 and the clean water tank 5.

Comprises a controller 18, a clear water upper liquid level meter 19 and a clear water lower liquid level meter 20 are arranged in a clear water tank 5, and a sewage upper liquid level meter 21 and a sewage lower liquid level meter 22 are arranged in a sewage tank 2. The clear water upper liquid level meter 19, the clear water lower liquid level meter 20, the sewage upper liquid level meter 21 and the sewage lower liquid level meter 22 are all electrically connected with the controller 18; the controller 18 is electrically connected with the first solenoid valve 17, the second solenoid valve 10, the third solenoid valve 11, the supply pump 12 and the backwashing pump 6. A pre-filtering pressure transmitter 23 is connected between the feed pump 12 and the pre-filter 3, a post-membrane pressure transmitter 24 is connected between the backwashing pump 6 and the plurality of ultrafiltration membranes 4, a pre-membrane pressure transmitter 25 is connected between the water inlet pipe 14 and the third one-way valve 15, and the pre-filtering pressure transmitter 23, the post-membrane pressure transmitter 24 and the pre-membrane pressure transmitter 25 are all electrically connected with the controller 18. The controller 18 is a PLC, and the ultrafiltration membrane 4 is a hollow limiting ultrafiltration microfiltration membrane; the first electromagnetic valve 17, the second electromagnetic valve 10, the third electromagnetic valve 11, the controller 18, the feeding pump 12, the backwashing pump 6, the clear water upper liquid level meter 19, the clear water lower liquid level meter 20, the dirty water upper liquid level meter 21, the dirty water lower liquid level meter 22, the pre-filter pressure transmitter 23, the post-membrane pressure transmitter 24 and the pre-membrane pressure transmitter 25 are all powered by an external power supply.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides an ultrafiltration equipment, is including sewage tank (2) of connecting sewage inlet tube (1), be connected with prefilter (3) on sewage tank (2), prefilter (3) are gone up and are connected in parallel have a plurality of milipore filter (4), and are a plurality of milipore filter (4) are connected its characterized in that with clear water tank (5): be connected with anti-scavenging pump (6) on clear water tank (5), anti-scavenging pump (6) are connected with the washing entry of a plurality of milipore filter (4), and are a plurality of the washing export of milipore filter (4) is connected with sewage tank (2), be connected with clear water discharge overflow pipeline (7) on clear water tank (5).

2. Ultrafiltration apparatus according to claim 1, characterized in that: be connected with second check valve (8) between clear water tank (5) and anti-scavenging pump (6), it is parallelly connected through washing pipeline (9) between the washing export of a plurality of milipore filter (4) sewage tank (2), be connected with second solenoid valve (10) between washing pipeline (9) and sewage tank (2).

3. Ultrafiltration apparatus according to claim 2, characterized in that: a third electromagnetic valve (11) is connected between the sewage water tank (2) and the sewage water inlet pipe (1), and a feeding pump (12) is connected between the sewage water tank (2) and the pre-filter (3).

4. Ultrafiltration apparatus according to claim 3, characterized in that: a first one-way valve (13) is connected between the feeding pump (12) and the sewage tank (2), the pre-filter (3) and the ultrafiltration membranes (4) are connected in parallel through a water inlet pipeline (14), and a third one-way valve (15) is connected between the pre-filter (3) and the water inlet pipeline (14).

5. Ultrafiltration apparatus according to claim 4, characterized in that: the clear water tank (5) is connected with the ultrafiltration membranes (4) in parallel through a clear water pipeline (16), and a first electromagnetic valve (17) is connected between the clear water pipeline (16) and the clear water tank (5).

6. Ultrafiltration apparatus according to claim 5, characterized in that: including controller (18), be equipped with level gauge (19) under clear water level gauge (19) and the clear water in clear water tank (5), be equipped with level gauge (22) under level gauge (21) and the sewage on the sewage in sewage tank (2), level gauge (21) and sewage under level gauge (22) on clear water level gauge (19), the clear water all are connected with controller (18) four, controller (18) are connected with first solenoid valve (17), second solenoid valve (10), third solenoid valve (11), feed pump (12), anti-scavenging pump (6).

7. Ultrafiltration apparatus according to claim 6, characterized in that: be connected with between feed pump (12) and prefilter (3) and strain preceding pressure transmitter (23), be connected with behind the membrane pressure transmitter (24) between backwashing pump (6) and a plurality of milipore filter (4), be connected with before the membrane pressure transmitter (25) between prefilter (3) and inlet channel (14), strain preceding pressure transmitter (23), behind the membrane pressure transmitter (24), pressure transmitter (25) all are connected with controller (18) before membrane.