CN217895298U - Zero discharge system of phase modifier circulating water electrochemistry scale removal - Google Patents

Abstract

The utility model discloses a phase modifier circulating water electrochemistry scale removal zero release system relates to industrial circulating water treatment technical field, the water purifier, the filter, remove turbid former water tank, the desalination device, the descaling device communicates with producing the water tank in proper order, the drain of water purifier, the second export of filter, the second export of desalination device and the slag notch of descaling device all communicate with the import of dense pond, dense pond and desalination device and strong brine wastewater pond intercommunication, remove turbid former water tank each export respectively with the backwash mouth of water purifier, the backwash mouth of filter and the first import intercommunication of desalination device. The utility model discloses an electrochemistry scale removal zero discharge system need not to use the chemical agent that has toxicity and corrosivity to the in-process that the camera circulating water was handled, can not produce the extra pollution that leads to by adding chemical agent to the environment, eliminated the chemical agent transportation, deposited, manage and use potential safety hazard and chemical agent transportation that exist in the operation process, deposit and the cost that produces in the management process.

Description

Zero discharge system of phase modifier circulating water electrochemistry scale removal

Technical Field

The utility model relates to an industrial circulating water treatment technical field, concretely relates to a system for be used for phase modifier circulating water scale removal.

Background

Water is a common cooling medium and is widely applied to various devices of the ultrahigh-voltage converter station. The circulating water supply process of the cooling water in the extra-high voltage converter station comprises the following steps: the industrial water is pressurized by the circulating water pump and then passes through the heat exchange equipment to realize indirect heat exchange, namely, the water with the increased temperature returns to the water pump inlet forebay after passing through the cooling tower and other heat dissipation devices, and is pressurized by the circulating water pump and then recycled.

The cooling water is limited by the concentration multiple in the circulating use process, and part of concentrated water needs to be periodically discharged and new water needs to be supplemented in the working process of the circulating cooling water system, so that the salt content, the salt value, the organic matter concentration and the suspended matter content in the cooling water are all maintained within a certain range, the circulating cooling water system is ensured not to be scaled and corroded, and the normal work of the circulating cooling water system is maintained. If the discharged concentrated water can be recycled after treatment, the circulating cooling water system can approach or even achieve zero emission, the recycling rate of the water can be improved, the water resource is saved, and the overall condition of the circulating cooling water can be greatly improved.

At present, common cooling water circulating water treatment modes are chemical agent treatment modes, belong to typical passive treatment modes, and although the treatment modes can basically meet the requirements of cooling water circulating water treatment, some problems also exist:

1) The method adopts chemical dosing and periodic pollution discharge to control the quality of the external cold water, which can cause the discharge of high-salinity concentrated water containing added chemical agents to the water body near the water outlet and cause the pollution of the water body near the water outlet;

2) The chemical agents used for treatment have certain toxicity and corrosiveness, the transportation, storage and management and the use conditions are harsh, and the physical and psychological health of operators faces great threat and challenge;

3) The breeding phenomenon of microorganisms and algae is obvious, and visible green algae are arranged at the air inlet of the cooling tower and the top layer of the internal seasonings;

the problems comprehensively cause the existing cooling water circulating water treatment mode to have obvious defects in the aspects of energy conservation, environmental protection and microorganism control, and urgent need to be adjusted and optimized.

By prior art search, there are the following known solutions:

prior art 1:

application No.: CN201710330056.7, application date: 2017.05.11, published (bulletin) day: 2017.09.08, this prior art discloses a novel cooling tower circulating water treatment system, which comprises a cooling tower, a heat exchanger, a water pump, a filter, the cooling tower is connected with the heat exchanger, the heat exchanger is connected with the water pump, the water pump is connected with the filter, still be provided with electrochemical water treatment facilities between cooling tower and the filter, ozone generating device and electro-adsorption desalination device parallel connection, the bottom of cooling tower still is provided with the cold water pond, electrochemical water treatment facilities installs in the cold water pond, ozone generating device and electro-adsorption desalination device are bypass installation in circulating water system pipeline, the pond passes through the pipeline and is connected with parallelly connected ozone generating device and electro-adsorption desalination device. Compared with the prior art, the technology of the utility model is based on electrochemistry, no or little additional medicament is needed, the purpose of saving medicament can be greatly achieved, and the environmental protection effect is good; the water in the water tank is recycled, so that the water saving performance is good; the circulating water treatment cost is low.

However, the effect of the prior art still depends on the use of an external medicament, and zero emission is difficult to realize.

Prior art 2:

application No.: CN202023344471.4, application date: 2020.12.31, published (announced) day: 2022.03.11, this prior art discloses an electrochemistry circulating water treatment system, including sedimentation tank, micro porous filter, spiral-flow type water treatment ware and ultimate purification section of thick bamboo, the upper end of sedimentation tank is fixed with the extension board, install sewage pretreatment module on the extension board, one side inner wall and the outer wall correspondence of sedimentation tank are provided with negative pressure pump and disinfect box, the water inlet port and the water outlet port of negative pressure pump are connected with the water connecting pipe, the both ends of water connecting pipe correspond with the inside of sedimentation tank and the top of disinfect box and are connected, the bottom of disinfect box is connected with circulating pipe, circulating pipe's the other end is connected with micro porous filter's water inlet port. The utility model discloses a set up a neotype electrochemistry circulating water processing system, can realize the effective purification treatment of circulating water when using, the hydroenergy of handling back enough recycles, and then reduces the waste of resource.

Although the water treated by the prior art can be recycled, the water is still difficult to realize zero emission, and a medicament needs to be added for disinfection.

The search finds that the technical proposal does not influence the novelty of the utility model; and the mutual combination of the prior art does not destroy the creativity of the utility model.

SUMMERY OF THE UTILITY MODEL

The utility model discloses just in order to avoid the weak point that above-mentioned prior art exists, provide a phase modifier circulating water electrochemistry scale removal zero discharge system.

The utility model discloses a solve technical problem and adopt following technical scheme: a phase modifier circulating water electrochemical descaling zero-emission system comprises a water filter, a turbidity removal raw water tank, a desalting device, a descaling device, a concentrated water tank, a concentrated salt wastewater tank and a water production tank;

an inlet is formed in the side wall of the water filter, a water outlet in the bottom of the side wall is communicated with an inlet in the top of the side wall of the filter through a first pipeline, and a drain outlet in the bottom of the water filter is communicated with an inlet of the concentrated water tank through a second pipeline;

a first outlet at the bottom of the filter is communicated with an inlet on the side wall of the turbidity removing original water tank through a third pipeline, and a second outlet on the side wall is communicated with an inlet of the concentrated water tank through a fourth pipeline;

a first outlet of the side wall of the turbidity removing raw water tank is communicated with a backwashing port at the bottom of the water filter through a fifth pipeline, a second outlet of the side wall is communicated with a backwashing port of the filter through a sixth pipeline, and a third outlet of the side wall is communicated with a first inlet at the bottom of the desalting device through a seventh pipeline;

a first outlet at the top of the side wall of the desalting device is communicated with an inlet of the descaling device through an eighth pipeline, and a second outlet at the bottom of the side wall is communicated with an inlet of the concentrated water tank through a ninth pipeline;

an outlet of the side wall of the descaling device is communicated with an inlet of the water production tank through a tenth pipeline, and a slag discharge port at the bottom of the descaling device is communicated with an inlet of the concentrated water tank through an eleventh pipeline;

the concentrated water tank is communicated with a first inlet at the bottom of the desalting device through a twelve pipeline inserted to the bottom of the concentrated water tank;

the outlet of the concentrated salt water tank is communicated with the inlet of the concentrated salt wastewater tank through a thirteen-pipeline;

an outlet of the water production tank is communicated with a second inlet at the top of the side wall of the desalting device through a fourteen-pipe;

each pipeline is respectively provided with a valve and a pump body, and the filtering precision of the water filter, the desalting device and the descaling device is increased progressively.

Furthermore, the descaling device is a micro-electrolysis descaling device and comprises a reaction cylinder, a cylindrical anode plate and a cylindrical cathode plate which are coaxially arranged in the reaction cylinder from inside to outside, and a descaling plate for removing scale on the cathode plate, wherein a water inlet and a water outlet are respectively formed in two sides of the reaction cylinder and are respectively used as an inlet and an outlet of the descaling device, a top cover is covered at the top of the reaction cylinder, and the anode plate and the cathode plate are installed and fixed in the reaction cylinder.

Furthermore, the bottom of the reaction cylinder is of a concave hopper-shaped scale depositing structure, and the bottom of the reaction cylinder is provided with supporting legs for supporting.

Furthermore, a filter screen core of the water filter is of a cylindrical structure, a rotary hairbrush of the cylindrical structure is arranged in the filter screen core and is fixedly arranged on a hairbrush rotating rod, bristles of the rotary hairbrush are in contact with the filter screen core, and the hairbrush rotating rod is fixedly connected with an output end of a water filtering motor.

Furthermore, a biological activated carbon filter layer, a quartz sand layer and a magnetite layer are sequentially filled in the filter from top to bottom; the second outlet height of the filter is higher than the height of the biological activated carbon filtering layer, and the back washing opening height of the filter is lower than the height of the magnetite layer.

Furthermore, the desalination device is an electro-adsorption desalination device, and comprises a desalination treatment box and carbon nanotube composite electrodes arranged in the desalination treatment box, wherein the carbon nanotube composite electrodes are of a plate-shaped structure, the carbon nanotube composite electrodes are arranged in parallel, the positions and polarities of the adjacent carbon nanotube composite electrodes are staggered, the carbon nanotube composite electrodes are separated in the desalination treatment box to form a snake-shaped water flow channel, the inlet of the water flow channel is communicated with the first inlet and the second inlet of the desalination device, and the outlet of the water flow channel is communicated with the first outlet and the second outlet of the desalination device; and a carbon nano porous adsorption material is attached to the electrode plate of the carbon nano tube composite electrode.

Furthermore, the valves arranged on the pipelines respectively comprise a manual valve and an electromagnetic valve, the concentrated water tank is internally provided with a micro-electrolysis scale collecting device and a conductivity detection device, the seventh pipeline, the eighth pipeline, the tenth pipeline and the twelfth pipeline are provided with conductivity detection devices, the first pipeline and the fourth pipeline are provided with turbidity detectors, the seventh pipeline is provided with electromagnetic valves, the pump body, the turbidity detectors, the conductivity detection devices and the SDI are all in data communication with an external PLC.

Further, a liquid level monitoring device is arranged in the turbidity removing original water tank and is in data communication with an external PLC (programmable logic controller); the top is equipped with the overflow mouth, and the manhole is established at the lateral wall top.

Furthermore, aeration holes communicated with an air source are formed in the bottom of the strong salt wastewater tank.

Furthermore, the descaling device comprises a descaling motor, a transmission shaft and a descaling plate, the top cover comprises a central cover plate positioned in the center and an annular cover plate positioned on the periphery, the central cover plate is of a circular plate-shaped structure and is fixedly installed at the top end of the anode plate, the annular cover plate is of an annular plate-shaped structure and is fixedly installed at the top of the reaction cylinder, and an annular groove is reserved between the central cover plate and the annular cover plate;

the descaling motor is fixedly installed at the top of the central cover plate, the output end of the descaling motor is fixedly connected with the front end of the transmission shaft, the tail end of the transmission shaft is fixedly connected with the top of the descaling plate, the descaling plate penetrates through the annular groove and extends into the reaction cylinder, and the outer side wall of the descaling motor is attached to the inner wall of the cathode plate; the descaling motor is used for driving the transmission shaft and the descaling plate to rotate around the axis of the cathode plate.

The utility model provides a zero discharge system of phase modifier circulating water electrochemistry scale removal has following beneficial effect:

1. the electrochemical descaling zero-emission system of the utility model does not need to use toxic and corrosive chemical agents in the process of treating the circulating water of the phase modulation machine, does not cause additional pollution to the environment caused by adding the chemical agents, and eliminates the potential safety hazard in the processes of transporting, storing, managing and using the chemical agents and the cost generated in the processes of transporting, storing and managing the chemical agents;

2. the utility model can effectively reduce the content of calcium, magnesium and other heavy metal ions in the circulating water, has the function of oxidation sterilization, and can reduce the risk of system scaling and algae breeding;

3. the utility model can obviously reduce the overall water discharge of the system and achieve the aim of water saving and environmental protection;

4. the utility model discloses an electrochemistry scale removal zero discharge system possesses automatic operational capability, can show and reduce fortune dimension work load.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure:

1. the water filter comprises a water filter body 11, a cylinder body 12, a water filtering motor 13, a brush rotating rod 14, a filtering net core 15, a rotary brush 16 and a water filtering grating; 2. a filter 21, a biological activated carbon filter layer 22, a quartz sand layer 23 and a magnetite layer; 3. a turbidity removal raw water tank 31, a liquid level monitoring device 32, an overflow port 33 and a manhole; 4. the device comprises a desalting device 41, a carbon nano tube composite electrode 42, a desalting treatment box 5, a descaling device 51, a reaction cylinder 52, a descaling motor 53, a transmission shaft 54, an anode plate 55, a cathode plate 56, a descaling plate 57, supporting legs 58 and a bucket type scale deposit structure; 6. a concentrated water tank 61, a micro-electrolysis scale collecting device 62 and a conductivity detection device; 7. a strong salt wastewater tank 71 and an aeration hole; 8. a water production tank; 901. a first pipeline, 902, a second pipeline, 903, a third pipeline, 904, a fourth pipeline, 905, a fifth pipeline, 906, a sixth pipeline, 907, a seventh pipeline, 908, an eighth pipeline, 909, a ninth pipeline, 910, a tenth pipeline, 911, eleven pipeline, 912, twelve pipeline, 913, thirteen pipeline, 914, fourteen pipeline.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are 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 efforts belong to the protection scope of the present invention.

As shown in fig. 1, the structural relationship is: comprises a water filter 1, a filter 2, a turbidity removal raw water tank 3, a desalting device 4, a descaling device 5, a concentrated water tank 6, a concentrated salt wastewater tank 7 and a water production tank 8;

the side wall of the water filter 1 is provided with an inlet, and a water filtering grid 16 for filtering large-particle impurities can be arranged at the inlet; a water outlet at the bottom of the side wall is communicated with an inlet at the top of the side wall of the filter 2 through a first pipeline 901, and a drain outlet at the bottom is communicated with an inlet of the concentrated water tank 6 through a second pipeline 902;

a first outlet at the bottom of the filter 2 is communicated with an inlet on the side wall of the turbidity removing raw water tank 3 through a third pipeline 903, and a second outlet on the side wall is communicated with an inlet of the concentrated water tank 6 through a fourth pipeline 904;

a first outlet on the side wall of the turbidity removing raw water tank 3 is communicated with a backwashing port at the bottom of the water filter 1 through a fifth pipeline 905, a second outlet on the side wall is communicated with a backwashing port of the filter 2 through a sixth pipeline 906, and a third outlet on the side wall is communicated with a first inlet at the bottom of the desalting device 4 through a seventh pipeline 907;

a first outlet at the top of the side wall of the desalting device 4 is communicated with an inlet of the descaling device 5 through an eighth pipeline 908, and a second outlet at the bottom of the side wall is communicated with an inlet of the concentrated water tank 6 through a ninth pipeline 909;

an outlet in the side wall of the descaling device 5 is communicated with an inlet of the water production tank 8 through a tenth pipeline 910, and a slag discharge port in the bottom is communicated with an inlet of the concentrated water tank 6 through an eleventh pipeline 911;

the concentrated water tank 6 is communicated with a first inlet at the bottom of the desalting device 4 through a twelve pipeline 912 inserted to the bottom of the tank; the water in the concentrated water tank 6 can be sent to the desalting device 4 through a twelve-line 912 for re-concentration;

the outlet of the concentrated salt water tank 6 is communicated with the inlet of the concentrated salt wastewater tank 7 through a thirteen-pipeline 913;

the outlet of the water production tank 8 is communicated with a second inlet at the top of the side wall of the desalting device 4 through a fourteen-pipe 914;

each pipeline is provided with a valve and a pump body respectively, and each pipeline comprises a first pipeline 901, a second pipeline 902, a third pipeline 903, a fourth pipeline 904, a fifth pipeline 905, a sixth pipeline 906, a seventh pipeline 907, an eighth pipeline 908, a ninth pipeline 909, a tenth pipeline 910, an eleventh pipeline 911, a twelfth pipeline 912, a thirteenth pipeline 913 and a fourteenth pipeline 914; the filter precision of the water filter 1, the filter 2, the desalination device 4 and the descaling device 5 is increased gradually.

Preferably, the descaling device 5 is a micro-electrolysis descaling device, and comprises a reaction cylinder 51, a cylindrical anode plate 54 and a cylindrical cathode plate 55 which are coaxially arranged in the reaction cylinder 51 from inside to outside, and a descaling plate 56 for removing scale on the cathode plate 55, wherein a water inlet and a water outlet are respectively arranged at two sides of the reaction cylinder 51 and are respectively used as an inlet and an outlet of the descaling device 5, a top cover is arranged on the top of the reaction cylinder 51, and the anode plate 54 and the cathode plate 55 are fixedly installed in the reaction cylinder 51.

Preferably, the bottom of the reaction cylinder 51 is a concave hopper-shaped scale structure 58, and the bottom of the reaction cylinder 51 is provided with support legs 57 for supporting.

Preferably, the filter core 14 of the water filter 1 is cylindrical, the rotary brush 15 with a cylindrical structure is arranged in the filter core 14 and is fixedly mounted on the brush rotating rod 13, the bristles of the rotary brush 15 are in contact with the filter core 14, and the brush rotating rod 13 is fixedly connected with the output end of the water filtering motor 12. In the backwashing process, the water filtering motor 12 drives the rotary brush 15 to rotate around the axis of the rotary brush through the brush rotating rod 13, so that the filter screen core 14 is cleaned; in practice, it is preferable that the rotary brush 15 and the brush rotating rod 13 are coaxially arranged.

Preferably, the filter 2 is filled with a biological activated carbon filter layer 21, a quartz sand layer 22 and a magnetite layer 23 from top to bottom in sequence; the second outlet height of the filter 2 is higher than the height of the biological activated carbon filter layer 21, and the back washing opening height of the filter 2 is lower than the height of the magnetite layer 23.

Preferably, the desalting device 4 is an electro-adsorption desalting device and is mainly used for eliminating sodium ions and potassium ions which are difficult to scale and separate out in water; the desalting device comprises a desalting treatment box 42 and carbon nanotube composite electrodes 41 arranged in the desalting treatment box 42, wherein the carbon nanotube composite electrodes 41 are of a plate-shaped structure, the carbon nanotube composite electrodes 41 are arranged in parallel, the positions and polarities of the adjacent carbon nanotube composite electrodes 41 are staggered, the carbon nanotube composite electrodes 41 are partitioned in the desalting treatment box 42 to form a snake-shaped water flow channel, the inlet of the water flow channel is communicated with a first inlet and a second inlet of the desalting device 4, and the outlet of the water flow channel is communicated with a first outlet and a second outlet of the desalting device 4; the electrode plate of the carbon nanotube composite electrode 41 is attached with a carbon nanotube porous adsorption material. When the desalting device 4 is actually used, the desalting device can be used in a reversed mode, namely the polarity of the cathode and the anode is interchanged, dirt deposited on a cathode cylinder can loosen and fall off automatically;

preferably, the valves arranged on the pipelines comprise a manual valve and an electromagnetic valve, the concentrated water pool 6 is internally provided with a micro-electrolysis scale collecting device 61 and a conductivity detection device 62, and the micro-electrolysis scale collecting device can be a micro-electrolysis scale collecting module which can be selected and used for removing partial impurities during actual arrangement; the conductivity detection device can select a conductivity sensor, the conductivity sensor is used for measuring the conductivity of the liquid in the concentrated salt water tank 6, when the conductivity measured by the conductivity sensor is higher than a set value, an electromagnetic valve of a thirteen-pipeline 913 is opened, the pump body works, and concentrated water in the concentrated salt water tank is discharged into a concentrated salt wastewater tank 7; the seventh pipeline 907, the eighth pipeline 908, the tenth pipeline 910 and the twelfth pipeline 912 are provided with conductivity detection devices 62, and during actual arrangement, conductivity sensors can be selected as the conductivity detection devices; turbidity detectors are arranged on the first pipeline 901 and the fourth pipeline 904, and can be selected during actual arrangement; a seventh pipeline 907 is provided with an SDI which is a sludge density index detector and can be selected; the electromagnetic valves, the pump body, the turbidity detector, the conductivity detector 62 and the SDI are all in data communication with an external PLC controller.

Preferably, a liquid level monitoring device 31 is arranged in the turbidity removing raw water tank 3, and the liquid level monitoring device 31 is in data communication with an external PLC (programmable logic controller); in actual use, the liquid level monitoring device 31 can select a liquid level sensor; the top is provided with an overflow 32 and the top of the side wall is provided with a manhole 33.

Preferably, aeration holes 71 which are respectively communicated with an air source are arranged at the bottom of the concentrated salt wastewater tank 7.

The air source leads air to the bottom of the concentrated salt wastewater tank 7 through the aeration holes 71, when concentrated water flows into the concentrated salt wastewater tank 7, the air source leads the air to the aeration holes, the concentrated water is crystallized after aeration and evaporation, and the crystals can be scraped and removed by a scraper blade by workers and then are transported to a designated place for treatment in a centralized manner, thereby being beneficial to realizing zero emission of the electrochemical descaling zero emission system.

Preferably, the descaling device comprises a descaling motor 52, a transmission shaft 53 and a descaling plate 56, the top cover comprises a central cover plate positioned in the center and an annular cover plate positioned at the periphery, the central cover plate is in a circular plate-shaped structure and is fixedly installed at the top end of the anode plate 54, the annular cover plate is in an annular plate-shaped structure and is fixedly installed at the top of the reaction cylinder 51, and an annular groove is reserved between the central cover plate and the annular cover plate;

the descaling motor 52 is fixedly arranged on the top of the central cover plate, the output end of the descaling motor is fixedly connected with the front end of the transmission shaft 53, the tail end of the transmission shaft 53 is fixedly connected with the top of the descaling plate 56, the descaling plate 56 penetrates through the annular groove to extend into the reaction cylinder 51, and the outer side wall of the descaling motor is attached to the inner wall of the cathode plate 55; the descaling motor 52 is used for driving the transmission shaft 53 and the descaling plate 56 to rotate around the axis of the cathode plate 55.

The water filtering work of the electrochemical descaling zero-emission system comprises the following processes:

firstly, the circulating water is filtered by a water filtering grid 16 to remove larger impurities and then flows into a cylinder body 11 of the water filter 1, and is primarily filtered by a filter screen core 14 to form first-stage circulating water, and the first-stage circulating water flows out from a water outlet of the water filter 1;

secondly, the primary circulating water flows into the filter 2 from the inlet of the filter 2 through the first pipeline 901, and is filtered by the biological activated carbon filter layer 21, the quartz sand layer 22 and the magnetite layer 23 in sequence to form secondary circulating water, and the secondary circulating water flows out from the first outlet of the filter 2;

thirdly, the secondary circulating water flows into the turbidity-removed original water tank 3 from the inlet of the turbidity-removed original water tank 3 through a third pipeline 903 and flows out from the third outlet of the turbidity-removed original water tank 3;

fourthly, the secondary circulating water continuously flows through a seventh pipeline 907, is mixed with the primary treatment concentrated water flowing into the twelve pipelines 912 from the concentrated water pool 6, flows into the desalination device 4 from the first inlet of the desalination device 4, flows along a snakelike water flow channel formed by the partition of each carbon nano tube composite electrode 41, is purified into tertiary circulating water through each carbon nano tube composite electrode 41 in the process, and flows out from the first outlet of the desalination device 4;

fifthly, the third-stage circulating water flows into the reaction cylinder 51 of the descaling device 5 from the inlet of the descaling device 5 through the eighth pipeline 908, becomes fourth-stage circulating water after being electrified and purified by the anode plate 54 and the cathode plate 55, and the fourth-stage circulating water flows out from the outlet of the descaling device 5, flows into the water production tank 8 from the inlet of the water production tank 8 through the tenth pipeline 910, and is stored for standby.

In the water filtering process, valves of the first pipeline 901, the third pipeline 903, the seventh pipeline 907, the eighth pipeline 908, the tenth pipeline 910 and the twelfth pipeline 912 are opened, the pump body works, valves of the second pipeline 902, the fourth pipeline 904, the fifth pipeline 905, the sixth pipeline 906, the ninth pipeline 909, the eleventh pipeline 911 and the fourteenth pipeline 914 are closed, and the pump body stops.

The water filter 1, the filter 2, the desalting device 4 and the descaling device 5 of the electrochemical descaling zero-emission system have a backwashing function. When the electrochemical descaling zero-discharge system is backwashed, the water filter 1 and the filter 2 can be backwashed after being shut down, and the desalting device 4 and the descaling device 5 can be backwashed after being shut down.

Backwashing function of the water filter 1:

when the filter screen core 14 of the water filter 1 is polluted and blocked, the water filter 1 starts a backwashing function;

the second grade circulating water that goes in the former water tank 3 of turbidity flows out by the first export of the former water tank 3 of turbidity, flows into in the water purifier 1 by the backwash mouth of water purifier 1 through fifth pipeline 905, and simultaneously drainage motor 12 drive brush bull stick 13 drives rotatory brush 15 and rotates, carries out the backwash to filter screen core 14, and the sewage that the backwash produced flows out by the drain of water purifier 1, flows into dense pond 6 by the import of dense pond 6 through second pipeline 902.

When the water filter 1 is backwashed, the valve of the first pipeline 901 is closed, the pump body is stopped, the valves of the second pipeline 902 and the fifth pipeline 905 are opened, and the pump body works;

backwashing function of the filter 2:

the backwashing function of the filter 2 is started only when the water making process of the filter 2 is finished;

the second grade circulating water in the turbidity removing raw water tank 3 flows out from the second outlet of the turbidity removing raw water tank 3, flows into the filter 2 from the backwashing port of the filter 2 through the sixth pipeline 906, washes and backwashes the filter 2, and the sewage generated by backwashing flows out from the second outlet of the filter 2 and flows into the concentrated water tank 6 from the inlet of the concentrated water tank 6 through the fourth pipeline 904.

When the filter 2 is backwashed, valves of a first pipeline 901 and a third pipeline 903 are closed, the pump body is stopped, valves of a fourth pipeline 904 and a sixth pipeline 906 are opened, and the pump body works;

the desalting device 4 has a backwashing function: when the desalting device 4 is saturated in adsorption, the desalting device 4 starts a backwashing function;

the power supply of the desalting device 4 and two ends of each carbon nano tube composite electrode 41 are set to be in an open circuit state, four-stage circulating water in the water production tank 8 flows out from an outlet of the water production tank 8 and flows into the desalting device 4 from a second inlet of the desalting device 4 through a fourteen-pipe 914 until the desalting device 4 is filled with the four-stage circulating water; then, short-circuiting each carbon nanotube composite electrode 41 to discharge, and flushing ions in each carbon nanotube composite electrode 41 out of each carbon nanotube composite electrode 41, so that each carbon nanotube composite electrode 41 can be backwashed for discharge regeneration, and sewage generated by backwashing flows out of the second outlet of the desalination device 4 and flows into the concentrated water tank 6 from the inlet of the concentrated water tank 6 through the ninth pipeline 909; and finally, flushing the interior of the desalting device 4 by using four-stage circulating water in the water production tank 8, and discharging the sewage generated by flushing into the concentrated water tank 6.

When the desalination device 4 is backwashed, valves of a seventh pipeline 907, an eighth pipeline 908 and a twelfth pipeline 912 are closed, a pump body is stopped, valves of a ninth pipeline 909 and a fourteenth pipeline 914 are opened, and the pump body works;

the descaling device 5 has backwashing function:

the backwashing function of the descaling device 5 is started when more water scale is accumulated on the inner side of the negative plate 55;

the four-stage circulating water reversely flows out from an inlet of the water production tank 8, flows into the descaling device 5 from an outlet of the descaling device 5 through the tenth pipeline 910 to backwash the descaling device 5, the descaling motor 52 drives the descaling plate 56 to rotate around the axis of the cathode plate 55 through the driving transmission shaft 53, in the rotating process, the descaling plate 56 is attached to the inner side wall of the cathode plate 55 to scrape scale on the cathode plate 55, the scraped scale is deposited and collected in the bucket-type scale structure 58, the backwashing water carrying the scale deposited in the bucket-type scale structure 58 is discharged from a slag discharge port of the descaling device 5, and flows into the concentrated water tank 6 from an inlet of the concentrated water tank 6 through the eleventh pipeline 911.

When the descaling device 5 is backwashed, the valve of the eighth pipeline 908 is closed, the pump body is stopped, the valves of the tenth pipeline 910 and the eleventh pipeline 911 are opened, and the pump body works, wherein the water pumping direction of the valve body of the tenth pipeline 910 is opposite to the water pumping direction in the water filtering work.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides a zero discharge system of phase modifier circulating water electrochemistry scale removal which characterized in that: comprises a water filter (1), a filter (2), a turbidity removing raw water tank (3), a desalting device (4), a descaling device (5), a concentrated water tank (6), a concentrated salt wastewater tank (7) and a water production tank (8);

an inlet is formed in the side wall of the water filter (1), a water outlet at the bottom of the side wall is communicated with an inlet at the top of the side wall of the filter (2) through a first pipeline (901), and a sewage draining outlet at the bottom is communicated with an inlet of the concentrated water tank (6) through a second pipeline (902);

a first outlet at the bottom of the filter (2) is communicated with an inlet on the side wall of the turbidity removing raw water tank (3) through a third pipeline (903), and a second outlet on the side wall is communicated with an inlet of the concentrated water tank (6) through a fourth pipeline (904);

a first outlet of the side wall of the turbidity removing raw water tank (3) is communicated with a backwashing port at the bottom of the water filter (1) through a fifth pipeline (905), a second outlet of the side wall is communicated with a backwashing port of the filter (2) through a sixth pipeline (906), and a third outlet of the side wall is communicated with a first inlet at the bottom of the desalting device (4) through a seventh pipeline (907);

a first outlet at the top of the side wall of the desalting device (4) is communicated with an inlet of the descaling device (5) through an eighth pipeline (908), and a second outlet at the bottom of the side wall is communicated with an inlet of the concentrated water tank (6) through a ninth pipeline (909);

an outlet of the side wall of the descaling device (5) is communicated with an inlet of the water production tank (8) through a tenth pipeline (910), and a slag discharge port at the bottom is communicated with an inlet of the concentrated water tank (6) through an eleventh pipeline (911);

the concentrated water tank (6) is communicated with a first inlet at the bottom of the desalting device (4) through a twelve pipeline (912) inserted to the bottom of the tank;

an outlet of the concentrated salt water tank (6) is communicated with an inlet of a concentrated salt waste water tank (7) through a thirteen-pipeline (913);

an outlet of the water production tank (8) is communicated with a second inlet at the top of the side wall of the desalting device (4) through a fourteen-pipe (914);

each pipeline is respectively provided with a valve and a pump body, and the filtering precision of the water filter (1), the filter (2), the desalting device (4) and the descaling device (5) is increased progressively.

2. The system of claim 1, wherein the system is characterized in that: the descaling device (5) is a micro-electrolysis descaling device and comprises a reaction cylinder (51), a cylindrical anode plate (54) and a cylindrical cathode plate (55) which are coaxially arranged in the reaction cylinder (51) from inside to outside, and a descaling plate (56) used for removing scale on the cathode plate (55), wherein a water inlet and a water outlet are respectively formed in two sides of the reaction cylinder (51) and are respectively used as an inlet and an outlet of the descaling device (5), a top cover is covered at the top of the reaction cylinder (51), and the anode plate (54) and the cathode plate (55) are fixedly arranged in the reaction cylinder (51).

3. The system of claim 2, wherein the system is characterized in that: the bottom of the reaction cylinder (51) is a concave hopper-shaped scale depositing structure (58), and the bottom of the reaction cylinder (51) is provided with supporting legs (57) for supporting.

4. The system of claim 1, wherein the system is characterized in that: the filter screen core (14) of water purifier (1) is cylindric structure, and the rotatory brush (15) of cylindric structure are located in filter screen core (14), the installation is fixed to brush bull stick (13) on, the brush hair of rotatory brush (15) with filter screen core (14) contact, brush bull stick (13) and the output erection joint of fixed mounting's drainage motor (12).

5. The system of claim 1, wherein the system is characterized in that: a biological activated carbon filter layer (21), a quartz sand layer (22) and a magnetite layer (23) are sequentially filled in the filter (2) from top to bottom; the second outlet of the filter (2) is higher than the biological activated carbon filter layer (21), and the height of the back washing opening of the filter (2) is lower than the height of the magnetite layer (23).

6. The system of claim 1, wherein the system is characterized in that: the desalting device (4) is an electro-adsorption desalting device and comprises a desalting treatment box (42) and carbon nanotube composite electrodes (41) arranged in the desalting treatment box (42), the carbon nanotube composite electrodes (41) are of a plate-shaped structure, the carbon nanotube composite electrodes (41) are arranged in parallel, the positions and polarities of the adjacent carbon nanotube composite electrodes (41) are staggered, the carbon nanotube composite electrodes (41) are partitioned in the desalting treatment box (42) to form a snake-shaped water flow channel, the inlet of the water flow channel is communicated with the first inlet and the second inlet of the desalting device (4), and the outlet of the water flow channel is communicated with the first outlet and the second outlet of the desalting device (4); and a carbon nano porous adsorption material is attached to an electrode plate of the carbon nano tube composite electrode (41).

7. The system of claim 1, wherein the system is characterized in that: the valves arranged on the pipelines respectively comprise a manual valve and an electromagnetic valve, a micro-electrolysis scale collecting device (61) and a conductivity detection device (62) are arranged in the concentrated water tank (6), the conductivity detection device (62) is arranged on a seventh pipeline (907), an eighth pipeline (908), a tenth pipeline (910) and a twelfth pipeline (912), turbidity detectors are arranged on the first pipeline (901) and the fourth pipeline (904), an SDI is arranged on the seventh pipeline (907), and the electromagnetic valves, the pump body, the turbidity detectors, the conductivity detection device (62) and the SDI are all in data communication with an external PLC.

8. The system of claim 1, wherein the system is characterized in that: a liquid level monitoring device (31) is arranged in the turbidity removing raw water tank (3), and the liquid level monitoring device (31) is in data communication with an external PLC (programmable logic controller); the top is provided with an overflow port (32), and the top of the side wall is provided with a manhole (33).

9. The system of claim 1, wherein the system is characterized in that: aeration holes (71) which are respectively communicated with an air source are formed in the bottom of the concentrated salt wastewater tank (7).

10. The system of claim 2, wherein the system is characterized in that: the descaling device comprises a descaling motor (52), a transmission shaft (53) and a descaling plate (56), the top cover comprises a central cover plate positioned in the center and an annular cover plate positioned on the periphery, the central cover plate is of a circular plate-shaped structure and is fixedly installed at the top end of the anode plate (54), the annular cover plate is of an annular plate-shaped structure and is fixedly installed at the top of the reaction cylinder (51), and an annular groove is reserved between the central cover plate and the annular cover plate;

the descaling motor (52) is fixedly installed at the top of the central cover plate, the output end of the descaling motor is fixedly connected with the front end of the transmission shaft (53), the tail end of the transmission shaft (53) is fixedly connected with the top of the descaling plate (56), the descaling plate (56) penetrates through the annular groove and extends into the reaction cylinder (51), and the outer side wall of the descaling motor is attached to the inner wall of the cathode plate (55); the descaling motor (52) is used for driving the transmission shaft (53) and the descaling plate (56) to rotate around the axis of the cathode plate (55).

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