CN104102197B - Desalted water production system and control method thereof - Google Patents

Desalted water production system and control method thereof Download PDF

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Publication number
CN104102197B
CN104102197B CN201410317882.4A CN201410317882A CN104102197B CN 104102197 B CN104102197 B CN 104102197B CN 201410317882 A CN201410317882 A CN 201410317882A CN 104102197 B CN104102197 B CN 104102197B
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water
water tank
pump
level
filter
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CN104102197A (en
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戴泽辉
刘自然
卢威
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Hunan Hongwang New Material Technology Co ltd
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Zhaoqing Hongwang Metal Industrial Co Ltd
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Abstract

The present invention provides desalted water production system, including raw water box, intermediate water tank, reuse water tank, raw water pump, filter, middle water pump, counter-infiltration system, reuse water pump, flocculant case, flocculant filter pump and control centre, water intaking valve and liquidometer it is provided with on raw water box, raw water box is connected to raw water pump, raw water pump connects filter, flocculant case is connected to filter by flocculant filter pump, filter is connected to intermediate water tank, liquidometer it is provided with on intermediate water tank, intermediate water tank connects middle water pump, middle water pump is connected to counter-infiltration system, counter-infiltration system is connected to reuse water tank, it is provided with liquidometer on reuse water tank, the outlet of reuse water tank is connected to reuse water pump, control centre connects the liquidometer on each water tank and each water pump respectively.The present invention also provides for the control method of described desalted water production system.Desalted water production system of the present invention realizes automatic water production, unmanned, and production efficiency is high, reduces hand labor intensity.

Description

Desalted water production system and control method thereof
Technical field
The present invention relates to the cleaning technique in cold rolling band steel, more particularly relate to the desalted water of cleaning steel Production system and control method thereof.
Background technology
Rustless steel is after electrolysis or acid cleaning process, and surface exists electrolyte or the acid of some remnants Matter, needs substantial amounts of liquid (water) to be rinsed, uses multipair high speed rotating brush roll, at steel band simultaneously Surface is scrubbed, and uses substantial amounts of liquid to be rinsed, and accelerates cleaning steel strip surface.The most mostly The pickling line of number be all steel band from descaling bath out, be then passed through a pair acid squeezing roller, remove a large amount of acid on surface Liquid, is then passed through scrubbing unit and scrubs, and is usually and scrubs through multistage.The chloride ion content of desalted water is low, Can reduce the impact on steel strip surface quality, owing to the production cost of desalted water is higher, scrubbing unit unit is complete Portion uses desalted water when scrubbing, and seriously causes the waste of cleaning solution, and production cost is high, and after scrubbing Water be directly back to treatment tank, the cyclic utilization rate causing water is low.The production of desalted water is a kind of logical Crossing various water treatment technology, remove the float in water, colloid, electrodeless zwitterion, microorganism etc. is various Impurity.Desalted water removes the mineral in water by distillation, reverse osmosis, ion exchange or additive method, But traditional Desalting Water System automaticity is low, need the most on duty, produce water efficiency low.
Summary of the invention
In view of the above, the present invention is necessary to provide a kind of desalted water production system, can be by control automatically Process units processed, it is achieved unmanned, producing water ratio is high.
The present invention provides a kind of desalted water production system, and desalted water production system, including raw water box, middle water Case, reuse water tank, raw water pump, filter, middle water pump, counter-infiltration system, reuse water pump, flocculant Case, flocculant filter pump and control centre, raw water box is provided with water intaking valve and the first liquidometer, Yuan Shui The outlet of case is connected to raw water pump, and raw water pump connects filter, and flocculant case is by flocculant filter pump even Being connected to filter, filter is connected to the water inlet of intermediate water tank, and intermediate water tank is provided with the second liquidometer, The outlet of intermediate water tank connects middle water pump, and middle water pump is connected to counter-infiltration system, and counter-infiltration system is even Being connected to the water inlet of reuse water tank, reuse water tank is provided with the 3rd liquidometer, the outlet of reuse water tank is even It is connected to liquidometer and each water pump that reuse water pump, control centre connect on each water tank respectively, controls each water pump Being turned on and off, described desalted water production system also includes that a purging system, described purging system include punching The section of washing, brushing stage, hydro-peening section, cyclic water tank, the first circulating pump, the second circulating pump and effluent outfall, Purge zone, brushing stage, hydro-peening section sequentially set gradually, and purge zone is provided with flusher and squeeze roll, brush The section of washing is provided with scrubs unit and squeeze roll, and hydro-peening section is provided with hydro-peening unit and squeeze roll, in cyclic water tank Being provided with filter screen separator, the hydro-peening unit of hydro-peening section connects described reuse water pump, so that hydro-peening unit is supplied water, Second circulating pump connects hydro-peening section and hydro-peening unit, to carry out repeats itself spray, hydro-peening Duan Lian in hydro-peening section Connect cyclic water tank to follow with the water to cyclic water tank supply hydro-peening unit hydro-peening backflow, some first circulating pumps connections Ring water tank scrubs unit to flusher, brushing stage respectively, to be supplied respectively by the water after cyclic water tank inner filtration Scrub unit, brushing stage and hydro-peening section be respectively connecting to cyclic water tank to flusher, brushing stage, with For scrubbing or water after hydro-peening flows into cyclic water tank to filter, purge zone and cyclic water tank are respectively connecting to dirt Water discharge spout, is expelled to effluent outfall with the water of overfill in the water after rinsing or cyclic water tank.
Further, described filter includes medium filter, active carbon filter, demineralizer, security personnel Filter.
Further, described purging system also includes squeezing acid section, squeezes acid section and is arranged on a upper station of purge zone, First passing through for steel band and enter to purge zone after squeezing acid section, squeezing acid section has acid squeezing roller.
Further, two filter screen separator are set in described cyclic water tank, be correspondingly formed the first filter box, Second filter box and the third filter box, the first filter box appearance connects brushing stage and the water of hydro-peening section backflow, the third filter box Supply water respectively to purge zone, brushing stage.
It addition, the present invention is necessary to provide the control method of a kind of desalted water production system.
A kind of control method of described desalted water production system, its control method is as follows:
The water level of each water tank is set, water level 2m is high water level, water level is middle between 0.5 to 2m Water level, < 0.5m is low water level to water level;
The water level of the first liquidometer detection raw water box, the water level of the second liquidometer detection intermediate water tank, the 3rd liquid The water level of position meter detection reuse water tank;Control centre exports control signal control accordingly according to the signal of detection Water intaking valve, raw water pump, middle water pump and the opening and closing of reuse water pump, specifically,
The action executing of water intaking valve judges:
When the liquid level of raw water box is in low water level and middle water level, and water intaking valve opens moisturizing, when the liquid level of raw water box Being in high water level, water intaking valve is closed and is stopped moisturizing;
The action executing of raw water pump judges:
Being in high water level when the liquid level of raw water box is in the liquid level of low water level or intermediate water tank, raw water pump stops Draw water;It is in middle low water level when the liquid level of raw water box is in the liquid level of middle water level and high water level and intermediate water tank, Raw water pump is opened and is drawn water;And when raw water pump is opened when, control centre controls flocculant filter pump simultaneously To pipeline for flocculant, raw water pump pumps water to filter, and filter delivers to intermediate water tank after having filtered, It is in middle high water level, former water when the liquid level of intermediate water tank is in the liquid level of low water level and middle water level and raw water box Moisturizing opened by pump, is in low water level when the liquid level of intermediate water tank is in the liquid level of high water level or raw water box, former Water pump cuts out and stops moisturizing;
The action executing of middle water pump judges:
It is in high water level, middle water pump when the liquid level of intermediate water tank is in the liquid level of low water level or reuse water tank Stop pumping;Low water in the liquid level of intermediate water tank is in middle water level and high water level and reuse high water tank is in Position, middle water pump is opened and is drawn water;
The action executing of reuse water pump judges:
When the liquid level of reuse water tank is in middle high water level, production line is supplied water by reuse water pump;When reuse water tank Liquid level when being in low, reuse water pump stops supplying water.
Compared to prior art, the desalted water production system that the present invention is automatically controlled by design, it is achieved automatically Producing water, unmanned, production efficiency is high, reduces hand labor intensity.By using at the after-stage scrubbed Desalted water cleans, and both having ensured finally to clean is to use desalted water to clean, it is ensured that steel band quality, saves again Desalted water cost and consumption.The residual chemicals of steel strip surface can thoroughly be removed by purging system, it is ensured that The cleaning quality of steel band, and by the clean water of back segment is recycled to the scrubbing unit of leading portion, thus Save water resource, especially save desalted water cost and consumption.
The preferred embodiments of the invention and beneficial effect thereof, will in conjunction with detailed description of the invention the most specifically Bright.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with following Detailed description of the invention be used for explaining the present invention together, but should not be construed as limiting the invention.In the accompanying drawings,
Fig. 1 is the structural representation of desalted water production system of the present invention;
Fig. 2 is the structural representation of the purging system applying desalted water production system of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that this Detailed description of the invention described by place is merely to illustrate and explains the present invention, is not limited to the present invention.
Refer to Fig. 1, the desalted water production system shown in the present invention, including raw water box 1, intermediate water tank 2, return With water tank 3, raw water pump 11, filter 12, middle water pump 21, counter-infiltration system 22, reuse water pump 31, wadding Solidifying agent case 4, flocculant filter pump 41 and control centre's (not shown).
It is provided with water intaking valve 13 on raw water box 1 and the first liquidometer 14, the outlet of raw water box 1 are connected to former water Pump 11, raw water pump 11 connects filter 12.Flocculant case 4 is connected to filter 12 by flocculant filter pump 41, Filter 12 is connected to the water inlet of intermediate water tank 2, and intermediate water tank 2 is provided with the second liquidometer 23, middle The outlet of water tank 2 connects middle water pump 21, and middle water pump 21 is connected to counter-infiltration system 22, counter-infiltration system 22 water inlets being connected to reuse water tank 3, reuse water tank 3 is provided with the 3rd liquidometer 32, reuse water tank 31 Outlet be connected to liquidometer that reuse water pump 31, control centre connect on each water tank respectively and each water pump, Control being turned on and off of each water pump.In the present embodiment, control centre uses PLC.
Water intaking valve 13 controls the water inlet of raw water box 1, and water intaking valve 13 can use Pneumatic butterfly valve or electromagnetic valve control System, controls the unlatching of water intaking valve 13 by PLC output control signal.First liquidometer 14, the second liquidometer 23 And the 3rd liquidometer 32 be attached separately to raw water box 1, intermediate water tank 2, the top of reuse water tank 3.Liquidometer (14, 23,32) use ultrasonic level gage, the height of water level in water tank can be detected, output analogue signal to PLC, PLC combines Liquid level water intaking valve 13 and the opening and closing of each water pump (11,21,31,41).Raw water pump The water of raw water box 1 is pumped to intermediate water tank 2 by 11 through filter 12.Filter 12 includes medium filter, Active carbon filter, demineralizer, cartridge filter etc., it is used for filtering the impurity in former water.Flocculant filters The pipeline being connected to raw water pump 11 pumped with filter 12 by flocculant in flocculant case 4 by pump 41, and flocculant is assisted Filter 12 is helped to filter more thorough, totally.The water of intermediate water tank 2 is pumped to reverse osmosis system by middle water pump 21 System 22 delivers to reuse water tank 3 after carrying out depth-type filtration.The water of reuse water tank 3 can be delivered to raw by reuse water pump 31 Product line uses.
When controlling desalted water production system, control method is as follows:
Control water intaking valve 13 by PLC output control signal to open, to raw water box 1 moisturizing, the first liquidometer 14 The water level of detection raw water box 1.PLC is according to the startup of the water lev el control raw water pump 11 of raw water box 1 and intermediate water tank 2 With stopping.Water level is set, works as water level 2m is high water level, water level is middle water between 0.5 to 2m Position, < 0.5m is low water level to water level.When the liquid level of raw water box 1 is in low water level and middle water level (water level < 2m), Water intaking valve 13 opens moisturizing, and when the liquid level of raw water box 1 is in high water level (water level > 2m), water intaking valve 13 is closed and stopped Only moisturizing;When the liquid level of raw water box 1 is in low water level (water level < 0.5m) or the liquid level of intermediate water tank 2 is in High water level (water level > 2m), raw water pump 11 stops pumping;When the liquid level of raw water box 1 is in middle water level and high water level The liquid level of (water level>0.5m) and intermediate water tank 2 is in middle low water level (water level<2m), and raw water pump 11 is opened and taken out Water.When raw water pump 11 is opened when, PLC controls flocculant filter pump 41 to pipeline for flocculant simultaneously.Former Water pump 11 pumps former water to filter 12, and intermediate water tank 2 delivered to by filter 12 after having filtered.
When the liquid level of intermediate water tank 2 is at low water level and middle water level (water level < 2m) and the liquid level of raw water box 1 In middle high water level (water level > 0.5m), supplying water condition opened by raw water pump 11, when the liquid level of intermediate water tank 2 is in height The liquid level of water level (water level>2m) or raw water box 1 is in low water level (water level<0.5m), and raw water pump 11 cuts out Stop moisturizing;When the liquid level of intermediate water tank 2 is in low water level (water level < 0.5m) or the liquid level of reuse water tank 3 Being in high water level (water level > 2m), middle water pump 21 stops pumping;When the liquid level of intermediate water tank 2 is in middle water level It is in middle low water level (water level<2m), middle water pump with high water level (water level>0.5m) and reuse water tank 3 liquid level 21 unlatchings are drawn water.
When the liquid level of reuse water tank 3 is in middle high water level (water level > 0.3m), production line is supplied by reuse water pump 31 Water;When the liquid level of reuse water tank 3 is in low (water level < 0.3m), reuse water pump 31 stops supplying water.
Desalted water production system of the present invention farther includes the cleaning system used by the desalted water produced System.
Refer to Fig. 2, described purging system include squeeze acid section 51, purge zone 52, brushing stage 53, hydro-peening section 54, Cyclic water tank 55, some first circulating pumps 56, some second circulating pumps 57 and effluent outfall 58.Squeeze acid Section 51, purge zone 52, brushing stage 53, hydro-peening section 54 are set gradually by the direction of advance of a steel band 70.
Squeezing acid section 51 and be provided with acid squeezing roller 511, acid squeezing roller 511 is made up of some acid-proof rubber rolls, motor drives. Acid squeezing roller 511 mainly removes a large amount of acid solutions that steel strip surface band from descaling bath does not comes, and squeezes the acid solution gone and directly stays Return acid tank, acid cost can be saved, it also avoid the trouble that follow-up sewage disposal acid band is come simultaneously.
Purge zone 52 is provided with flusher 521 and squeeze roll 522.Steel band after acid squeezing roller 511, first warp Cross purge zone 52, be rinsed steel strip surface now by substantial amounts of water, owing to steel strip surface exists number acid Property material, so the value that the water after Chong Xiing does not recycles, is flowed directly to effluent outfall 58, passes through Sewage discharge water pipe 58 is emitted into Sewage Disposal.After having rinsed steel band, remove steel band by squeeze roll 522 The water of the flushing of remained on surface, enters brushing stage.
Brushing stage 53 is provided with scrubs unit 531 and squeeze roll 532, scrubs unit 531 and includes some brush roll (figure is not marked), squeeze roll 532 is arranged on the both sides of brush roll.Brush roll is in order to brush further to steel strip surface Washing, squeeze roll 532 mainly removes steel strip surface from having the moisture of a small amount of acid solution, squeezes the moisture gone and directly stays back Brushing stage.The steel strip surface of this section the most more cleans, and the more steel strip surface residual chemicals toward back segment is the fewest, Water after scrubbing can be delivered to cyclic water tank 55, cyclic water tank 55 filter after give leading portion purge zone 52, And brushing stage 53 repeats itself utilizes, thus save water resource.
Hydro-peening section 54 is provided with some hydro-peening units 541 and some squeeze rolls 542, and hydro-peening unit 541 is in order to steel Band sprays, and squeeze roll 542 once sprays the moisture of remnants before mainly removing steel strip surface, squeezes the moisture gone Directly stay back hydro-peening section.In the present embodiment, hydro-peening section 54 itself is internal uses secondary cycle spray to design, and two Platform the second circulating pump 57 connects hydro-peening section and corresponding hydro-peening unit 541 respectively, carries out repeats itself spray, can To utilize water resource to ensure steel band quality to greatest extent simultaneously.
Hydro-peening section 54 connects water inlet pipe 543, and the desalted water produced for desalted water production system flows into, to spray Washing machine group 541 supplies water.Hydro-peening unit 541 uses desalted water to be carried out, because hydro-peening section 54 determines steel band table The quality in face, so using desalted water, the chloride ion content of desalted water is low, it is possible to reduce to steel strip surface matter The impact of amount.Owing to the production cost of desalted water is higher, so purge zone 52, brushing stage 53 use hydro-peening section The desalted water of 54 hydro-peening backflows and the industry water brush of supply are scrubbed.The most both final hydro-peening section 54 had been ensured It is to use desalted water to clean, it is ensured that steel band quality, saves again desalted water cost and consumption.Concrete scheme It is back to cyclic water tank 55 for the current complete by hydro-peening section 54 hydro-peening.Cyclic water tank 55 is back to supplying after water filtration Purge zone 52, brushing stage 53.
It is provided with some filter screen separator 551 in cyclic water tank 55, is correspondingly formed some grades of filter boxs.The present embodiment In, it is provided with two filter screen separator 551 in cyclic water tank 55, is correspondingly formed the first filter box 552, second Filter box 553, the third filter box 554.First filter box 552 receives the water refluxed from brushing stage 53 and hydro-peening section 54, Then filter to the second filter box 553, then filter to the third filter box 554 from the second filter box 553.After filtration Two filter boxs 553, the water of the third filter box 554 can be supplied to purge zone 52, brushing stage 53.The water of the third filter box 554 Be filter after clean water, the first filter box 552 is simultaneously connected with effluent outfall 58, can discharge as required The sewage of cyclic water tank 55 or in cyclic water tank 55 water of overfill.
First circulating pump 56 connects cyclic water tank 55 and scrubs unit 531 to flusher 521, brushing stage respectively, So that the water after cyclic water tank 55 inner filtration is respectively fed to flusher 521, scrubs unit 531.It is connected to It is provided with valve 61 on the pipeline of circulating pump, can open as required.Brushing stage 53 and hydro-peening section 54 points Be not connected to cyclic water tank 55, so, by the first circulating pump 56 to flusher 521, scrub unit 531 Periodical feeding, the backwater of brushing stage 53 and hydro-peening section 54 flows back to cyclic water tank 55 simultaneously.
If the liquid level of cyclic water tank 55 is relatively low, then carry out moisturizing by an industry filling pipe 60, it is ensured that circulation The liquid level of water tank 55.
During cleaning, steel band, after the acid squeezing roller 511 of crowded acid section 51, first passes around purge zone 52 and rinses, rinse After complete steel band, removed the water of the flushing of steel strip surface residual by squeeze roll 542, then in turn through brushing stage Scrubbing, and all have squeeze roll to extract steel strip surface before and after scrubbing each time, after scrubbing, steel band enters Hydro-peening section 54, sprays through secondary cycle in hydro-peening section 54, sends after extracting, so can be thoroughly by steel band table The residual chemicals in face is removed, it is ensured that the cleaning quality of steel band, and by by the clean water of back segment Recycle to the scrubbing unit of leading portion, thus save water resource, especially save desalted water cost and consumption.
In cleaning process, hydro-peening section 54 flows into desalted water through water inlet pipe 543 and is carried out, and desalted water Circulated sprinkling under the effect of the second circulating pump 57, the desalted water after simultaneously cleaning flows into cyclic water tank 55 Second filter box 553 and the third filter box 554 is flowed into after first filter box 552, and filtration.First circulating pump 56 is made Flow into the flusher 521 of purge zone 52 with lower second filter box 553 and the third filter box 554, scrub unit 531, The water that purge zone 52 has been rinsed flows into sewage discharge water pipe 58, and the water that brushing stage 53 is scrubbed is back to recirculated water First filter box 552 of case 55.Additionally, when the liquid level of cyclic water tank 55 is relatively low, entered by industry filling pipe 60 Row moisturizing.
To sum up, the desalted water production system that the present invention is automatically controlled by design, it is achieved automatic water production, unmanned On duty, production efficiency is high, reduces hand labor intensity.By using desalted water to clean at the after-stage scrubbed, Both ensured finally to clean is use desalted water clean, it is ensured that steel band quality, save again desalted water cost and Consume.The residual chemicals of steel strip surface can thoroughly be removed by purging system, it is ensured that the cleaning matter of steel band Amount, and by the clean water of back segment is recycled to the scrubbing unit of leading portion, thus save water resource, Especially save desalted water cost and consumption.
Without departing from the thought of the invention, the various different embodiments of the present invention are carried out combination in any, All should be considered as present disclosure;In the technology concept of the present invention, technical scheme is carried out The combination in any of the thought without prejudice to the invention that multiple simple modification and different embodiment are carried out, all Should be within protection scope of the present invention.

Claims (5)

1. desalted water production system, it is characterised in that: include raw water box (1), intermediate water tank (2), reuse Water tank (3), raw water pump (11), filter (12), middle water pump (21), counter-infiltration system (22), Reuse water pump (31), flocculant case (4), flocculant filter pump (41) and control centre, raw water box (1) On be provided with water intaking valve (13) and the first liquidometer (14), the outlet of raw water box (1) and be connected to former water Pump (11), raw water pump (11) connects filter (12), and flocculant case (4) passes through flocculant filter pump (41) Being connected to filter (12), filter (12) is connected to the water inlet of intermediate water tank (2), intermediate water tank (2) being provided with the second liquidometer (23) on, the outlet of intermediate water tank (2) connects middle water pump (21), Middle water pump (21) is connected to counter-infiltration system (22), and counter-infiltration system (22) is connected to reuse water tank (3) Water inlet, reuse water tank (3) is provided with the 3rd liquidometer (32), the outlet of reuse water tank (3) Be connected to reuse water pump (31), liquidometer that control centre connects on each water tank respectively and each water pump, control each Being turned on and off of water pump, described desalted water production system also includes a purging system, described purging system bag Include purge zone (52), brushing stage (53), hydro-peening section (54), cyclic water tank (55), the first circulating pump (56), Second circulating pump (57) and effluent outfall (58), purge zone (52), brushing stage (53), hydro-peening section (54) sequentially setting gradually, purge zone (52) is provided with flusher (521) and squeeze roll (522), Brushing stage (53) is provided with scrubs unit (531) and squeeze roll (532), and hydro-peening section (54) is provided with spray Washing machine group (541) and squeeze roll (542), be provided with filter screen separator (551) in cyclic water tank (55), spray The hydro-peening unit (541) of the section of washing (54) connects described reuse water pump (31), with to hydro-peening unit (541) Supplying water, the second circulating pump (57) connects hydro-peening section (54) and hydro-peening unit (541), with in hydro-peening section (54) Carrying out repeats itself spray, hydro-peening section (54) connects cyclic water tank (55) to supply to cyclic water tank (55) To the water of hydro-peening unit (541) hydro-peening backflow, some first circulating pumps (56) connect cyclic water tank (55) Scrub unit (531), with by cyclic water tank (55) inner filtration to flusher (521), brushing stage respectively After water be respectively fed to flusher (521), brushing stage scrubs unit (531), brushing stage (53) with And hydro-peening section (54) is respectively connecting to cyclic water tank (55), for scrubbing or water after hydro-peening flows into circulation Water tank (55) is to filter, and purge zone (52) and cyclic water tank (55) are respectively connecting to effluent outfall (58), It is expelled to effluent outfall (58) with the water of the water after rinsing or cyclic water tank (55) interior overfill.
Desalted water production system the most according to claim 1, it is characterised in that: described filter (12) Including medium filter, active carbon filter, demineralizer, cartridge filter.
Desalted water production system the most according to claim 1, it is characterised in that: described purging system is also Including squeezing acid section (51), squeeze acid section (51) and be arranged on a upper station of purge zone (52), for steel band elder generation warp Crossing and enter to purge zone (52) after squeezing acid section (51), squeezing acid section (51) has acid squeezing roller (511).
Desalted water production system the most according to claim 1, it is characterised in that: described cyclic water tank (55) Two filter screen separator (551) are inside set, have been correspondingly formed the first filter box (552), the second filter box (553) And the third filter box (554), the first filter box (552) appearance connects brushing stage (53) and hydro-peening section (54) is returned The water of stream, the third filter box (554) supplies water respectively to purge zone (52), brushing stage (53).
5. a control method for the desalted water production system described in claim 1, its control method is as follows:
The water level of each water tank is set, water level 2m is high water level, water level is middle between 0.5 to 2m Water level, < 0.5m is low water level to water level;
The water level of the first liquidometer (14) detection raw water box (1), water in the middle of the second liquidometer (23) detection The water level of case (2), the water level of the 3rd liquidometer (32) detection reuse water tank (3);Control centre according to The signal of detection export accordingly control signal control water intaking valve (13), raw water pump (11), middle water pump (21), And the opening and closing of reuse water pump (31), specifically,
1) action executing of water intaking valve (13) judges:
When the liquid level of raw water box (1) is in low water level and middle water level, and water intaking valve (13) opens moisturizing, when former The liquid level of water tank (1) is in high water level, and water intaking valve (13) is closed and stopped moisturizing;
2) action executing of raw water pump (11) judges:
It is in high water level when the liquid level of raw water box (1) is in the liquid level of low water level or intermediate water tank (2), Raw water pump (11) stops pumping;When the liquid level of raw water box (1) is in middle water level and high water level and intermediate water tank (2) liquid level is in middle low water level, and raw water pump (11) is opened and drawn water;And when raw water pump (11) is opened When, control centre controls flocculant filter pump (41) to pipeline for flocculant, raw water pump (11) simultaneously Pumping water to filter (12), intermediate water tank (2) delivered to by filter (12) after having filtered, when middle water The liquid level of case (2) is in the liquid level of low water level and middle water level and raw water box (1) and is in middle high water level, former Moisturizing opened by water pump (11), when the liquid level of intermediate water tank (2) is in high water level or raw water box (1) Liquid level is in low water level, and raw water pump (11) cuts out and stops moisturizing;
3) in the middle of, the action executing of water pump (21) judges:
It is in high water level when the liquid level of intermediate water tank (2) is in the liquid level of low water level or reuse water tank (3), Middle water pump (21) stops pumping;When the liquid level of intermediate water tank (2) is in middle water level and high water level and reuse Water tank (3) liquid level is in middle low water level, and middle water pump (21) is opened and drawn water;
4) action executing of reuse water pump (31) judges:
When the liquid level of reuse water tank (3) is in middle high water level, production line is supplied water by reuse water pump (31); When the liquid level of reuse water tank (3) is in low, reuse water pump (31) stops supplying water.
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