CN211546235U

CN211546235U - Anti-scaling reverse osmosis device

Info

Publication number: CN211546235U
Application number: CN201920997243.5U
Authority: CN
Inventors: 刘冉
Original assignee: Qingdao Highland Energy Conservation And Environmental Protection Engineering Co ltd
Current assignee: Qingdao Highland Energy Conservation And Environmental Protection Engineering Co ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-09-22
Anticipated expiration: 2029-06-28

Abstract

The utility model provides a prevent scale deposit reverse osmosis unit, including reverse osmosis membrane device, the inlet tube of being connected with this reverse osmosis membrane device, connect the water receptacle of locating this inlet tube front end, locate the high-pressure discharge in this water receptacle prevent scale deposit device and the power of being connected with this high-pressure discharge prevents scale deposit device. This prevent scale deposit reverse osmosis unit sets up the setting that high-pressure discharge prevented scale deposit device through the front end of inlet tube, makes scaling nature materials such as colloid can enter into the reverse osmosis dense water through the membrane element smoothly, avoids the stagnant in the dense water side of reverse osmosis membrane element, prevents that the membrane element from the scale deposit.

Description

Anti-scaling reverse osmosis device

Technical Field

The utility model relates to a water treatment facilities, in particular to prevent scale deposit reverse osmosis unit.

Background

Due to the concentration polarization effect of the reverse osmosis device, substances such as calcium, magnesium, silicon dioxide, barium, colloid and the like can generate scale on the concentrated water side of the reverse osmosis membrane element, so that the water production efficiency and the service life of the reverse osmosis device are influenced. In the traditional reverse osmosis device, a scale inhibitor is added before a security filter to prevent scaling substances from precipitating on the concentrated water side of a membrane element. However, this method increases the running cost and causes secondary pollution, and is expected to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a prevent scale deposit reverse osmosis unit has solved the problem of scale deposit among the prior art.

The technical scheme of the utility model is realized like this:

the utility model provides an anti-scaling reverse osmosis device, includes reverse osmosis membrane device, the inlet tube of being connected with this reverse osmosis membrane device, connect the water receptacle of locating this inlet tube front end, locate the high-voltage discharge anti-scaling device in this water receptacle and the power of being connected with this high-voltage discharge anti-scaling device.

The preferred scheme does, high pressure discharge prevents scale deposit device includes the conductor pipe and locates the electrode bar in this conductor pipe, and this conductor pipe ground connection sets up, and this electrode bar is connected the positive pole of power.

Preferably, a transformer is connected between the power supply and the electrode bar, and the transformer is used for converting low-voltage alternating current into 35KV high-voltage direct current.

The preferred scheme does, reverse osmosis unit includes a plurality of reverse osmosis membrane elements, and each reverse osmosis membrane element includes the center tube and twines the reverse osmosis membrane piece group on this center tube, reverse osmosis membrane piece group is including the water inlet and separates net, pure water diversion net and reverse osmosis membrane piece, forms the pure water runner between the positive intermediate layer of this reverse osmosis membrane piece, forms the inhalant canal between the reverse intermediate layer of adjacent reverse osmosis membrane piece, and this water inlet separates the net and is located inhalant canal, and this pure water diversion net is located the pure water runner, is provided with a plurality of dense water inlets on this center tube. The end of the central tube forms the concentrate outlet of the reverse osmosis membrane element.

Preferably, the central tube is also provided with a flow rate control device for adjusting the flow rate of the concentrated water in the central tube.

Preferably, the flow rate control device is a porous disc structure, which comprises a disc and a plurality of rotating covers arranged on the disc.

The utility model has the advantages that:

the utility model discloses a prevent scale deposit reverse osmosis unit sets up the setting that high-pressure discharge prevented scale deposit device through the front end of inlet tube, makes the increase of mutual repulsion between the colloid and be in the disperse state to there is mutual repulsion in various relative position, this kind of state lasts always to reverse osmosis membrane device play water, and scaling nature material such as colloid can enter into the reverse osmosis dense water smoothly through the membrane element, avoids the stagnation to prevent the scale deposit of membrane element in the dense water side of reverse osmosis membrane element.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the anti-scaling reverse osmosis device of the present invention;

FIG. 2 is a schematic representation of the reverse osmosis membrane element of FIG. 1 after deployment;

fig. 3 is a cross-sectional view of the reverse osmosis membrane element of fig. 1.

In the figure:

10. a reverse osmosis membrane device; 20. a water inlet pipe; 30. a high-voltage discharge anti-scaling device; 50. a power source; 31. a conductor tube; 32. an electrode rod; 12. a reverse osmosis membrane element; 13. a central tube; 15. a reverse osmosis membrane set; 150. a water inlet separation net; 151. a pure water diversion net; 152. a reverse osmosis membrane; 16. a pure water flow passage; 17. a water inlet flow channel; 130. and a concentrated water inlet.

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.

As shown in fig. 1, the anti-scaling reverse osmosis device comprises a reverse osmosis membrane device 10, a water inlet pipe 20 connected with the reverse osmosis membrane device 10, a water container connected to the front end of the water inlet pipe 20, a high-voltage discharge anti-scaling device 30 arranged in the water container, and a power supply 50 connected with the high-voltage discharge anti-scaling device 30.

The high-voltage discharge anti-scaling device 30 comprises a conductor tube 31 and an electrode bar 32 arranged in the conductor tube 31 and spaced from the conductor tube. The conductive pipe 31 is a metal pipe, which is grounded, and the electrode rod 32 is connected to the positive electrode of the power supply 50. A transformer (not shown) is connected between the power source 50 and the electrode rod 32 for converting low voltage ac power to 35KV high voltage dc power. The high-voltage discharge anti-scaling device 30 utilizes the capacitor principle generated by high voltage to enable the surfaces of the electrode bar 32 and the conductor tube 31 to generate capacitance effect due to potential difference so as to promote the surface charge of colloid particles in the system, maintain the high potential state, enable related positive and negative ions in water to have the same electrical property, and utilize the principle that like charges repel each other to enable the ions to be stably suspended in the water so as to prevent the ions from being combined with each other or attached to the surface of a reverse osmosis membrane device, thus scaling and gel agglomeration are not generated and attached to the surface of a pipeline to form a biological membrane, particles are dispersed and not accumulated together, and the problems of no scaling, no corrosion, no microorganism and the like are achieved.

The reverse osmosis membrane device 10 includes three reverse osmosis membrane elements 12 connected in parallel. Referring to fig. 2 and 3, each reverse osmosis membrane element 12 includes a central tube 13 and a reverse osmosis membrane stack 15 wound around the central tube 13. The reverse osmosis membrane module 15 includes a water inlet screen 150, a pure water diversion screen 151 and a reverse osmosis membrane 152. Pure water flow channels 16 are formed between the front interlayers of the reverse osmosis membranes 152, water inlet flow channels 17 are formed between the back interlayers of the adjacent reverse osmosis membranes 152, and the water inlet separation net 150 is positioned in the water inlet flow channels 17. The pure water guide net 151 is located in the pure water flow passage 16. The central tube 13 is provided with a plurality of concentrate inlets 130. The end of the central tube 13 forms the concentrate outlet of the reverse osmosis membrane element 12. In specific implementation, the central tube 13 is further provided with a flow rate control device, and the flow rate control device is used for adjusting the flow rate of the concentrated water in the central tube 13. The flow rate control device can be a porous disc structure and specifically comprises a disc and a plurality of rotary covers arranged on the disc, wherein each rotary cover is arranged around the center of the disc and takes the center of the disc as a rotary shaft.

This prevent scale deposit reverse osmosis unit sets up the setting that high-pressure discharge prevented scale deposit device 30 through the front end of inlet tube, makes the mutual repulsion increase between the colloid and be in the disperse state to there is mutual repulsion in various relative position, this kind of state lasts always to reverse osmosis membrane device 10 play water, and scaling nature material such as colloid can enter into the reverse osmosis dense water through the membrane element smoothly, avoids the stagnation at the dense water side of reverse osmosis membrane element, prevents that the membrane element from scaling.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-scaling reverse osmosis device is characterized in that: the device comprises a reverse osmosis membrane device, a water inlet pipe connected with the reverse osmosis membrane device, a water container connected with the front end of the water inlet pipe, a high-voltage discharge anti-scaling device arranged in the water container and a power supply connected with the high-voltage discharge anti-scaling device.

2. The fouling-resistant reverse osmosis apparatus of claim 1, wherein: the high-voltage discharge anti-scaling device comprises a conductor tube and an electrode rod arranged in the conductor tube, wherein the conductor tube is grounded, and the electrode rod is connected with the anode of a power supply.

3. The fouling-resistant reverse osmosis apparatus of claim 2, wherein: and a transformer is connected between the power supply and the electrode bar and is used for converting low-voltage alternating current into 35KV high-voltage direct current.

4. An anti-scaling reverse osmosis unit according to any one of claims 1 to 3, wherein: the reverse osmosis device comprises a plurality of reverse osmosis membrane elements, each reverse osmosis membrane element comprises a central pipe and a reverse osmosis membrane group wound on the central pipe, each reverse osmosis membrane group comprises a water inlet separation net, a pure water diversion net and a reverse osmosis membrane, a pure water flow channel is formed between front interlayers of the reverse osmosis membranes, a water inlet flow channel is formed between reverse interlayers of adjacent reverse osmosis membranes, the water inlet separation net is located in the water inlet flow channel, the pure water diversion net is located in the pure water flow channel, a plurality of concentrated water inlets are formed in the central pipe, and concentrated water outlets of the reverse osmosis membrane elements are formed at the end parts of the central pipe.

5. The fouling-resistant reverse osmosis apparatus of claim 4, wherein: and the central pipe is also provided with a flow rate control device for regulating the flow rate of the concentrated water in the central pipe.

6. The fouling-resistant reverse osmosis apparatus of claim 5, wherein: the flow rate control device is a porous disc structure and comprises a disc and a plurality of rotary covers arranged on the disc.