CN209098358U - Pretreatment softening regeneration is open to add salt system and water purification machine - Google Patents

Abstract

The utility model relates to household water purifying field, in particular a kind of pretreatment softening regeneration is open to add salt system and water purification machine, including pretreatment water purification melded system, open plus salt displacement regenerative system and control system.By providing, a kind of pretreatment softening regeneration is open to add salt system to the utility model, the system when in use can the resin filter flask automatically to pretreatment system carry out plus salt displacement regeneration, and the possessed open salt pond of opening extremely can easily add softening salt grain, it does not need professional and carries out demolition and maintenance, it is only capable of providing pure water or pure water in traditional water purification machine, the use cost of water purification machine is not only comprehensively reduced on the basis of water purification, extend water purification machine filter flask and pump, valve service life, additionally provide the more worth high-quality reverse osmosis concentrated water for recycling and being suitable for cleaning washing.

Description

Pretreatment softening regeneration is open to add salt system and water purification machine

Technical field

The present invention relates to the purification of household water more particularly to a kind of pretreatment softening regeneration opens plus salt system and pure water Machine.

Background technique

With the improvement of living standards, the pure small-sized household that can directly drink of water quality and commercial water purification machine are increasingly popularized, and it is pure The cost of water dispenser in use is mainly reflected in two aspects, is the utilization rate and filter core service life of water respectively；Water Utilization rate is mainly reflected in the net expense ratio and concentrated water recovery utilization rate of water purification machine；The net expense of water is than referring to that water purification machine is one liter of output every The ratio of pure water and the concentrated water discharged, its discharge concentrated water of 1 liter of pure water of the common every output of water purification machine is that 2-3 rises concentrated water at present, There are many water purification machines that concentrated water recycling filtering is used to increase pure water yield to reduce concentrated water discharge, but its bring consequence is to lead The hardness and pH value for causing pretreated water increase, and accelerate reverse osmosis membrane and filter core at different levels blocking age hardening, increase filter core, pump valve more Change this into；The main reason for influencing water purification machine concentrated water recovery utilization rate is only to penetrate water in view of reverse osmosis membrane used in water purification machine, is cut The physical characteristics of mineral ion are stayed, concentrated water pH value, ion concentration and the hardness that concentrated water pipeline is discharged are above raw water, scale Scale is heavier compared with tap water, as life slurry cause clothes fiber it is age hardening, stimulation skin, increase detergent use Amount, more unsuitable breed fish is raised flowers, because not being suitable for wasting caused by being directly discharged into sewer as domestic water more.

The filter core of water purification machine is divided into two parts: the pretreatment filter including reverse osmosis membrane and for protecting reverse osmosis membrane, The service life of reverse osmosis membrane depends on tap water quality, pretreatment filter category, filtering accuracy；Water quality impact reverse osmosis membrane Principal element has the following: gel, water quality pH value, hardness of water etc., wherein the accumulation of gel can be in reverse osmosis membrane table Face forms attachment blocking, and leads to bacterial micro-organism mass propagation, to cause biochemical corrosion contamination, water quality pH value are excessively high can lead Cause reverse osmosis membrane hardening aging, the excessive high hardness of water will lead to and form crystallization pollution, above-mentioned dirt in reverse osmosis membrane surface and film layer Dye, which can reduce reverse osmosis membrane flux, causes water yield decline, producing water water quality to deteriorate；Pretreatment filter is mostly to receive dirty absorbent-type at present Cartridge combination common are polypropylene spray welding filter element and active carbon combination, as the decline of production cost is with screening type filter core The also more and more extensive use of pretreated cartridge combination, common are ultrafiltration membrane, ceramic element is combined with active carbon, screening type The characteristics of filter core is that filtering accuracy height can remove gel and bacterial micro-organism etc., reverse osmosis membrane can be more effectively protected, to dirt Dye object carries out Physical entrapment screening, does not adsorb, and retention pollutant discharge can sufficiently can be extended filter when being provided with drain outlet Core service life.

The characteristics of both the above pretreatment filter is that can effectively remove Visible pollutant, and wherein ultrafiltration membrane can also effectively be gone Except gel microorganism, reverse osmosis membrane can be preferably protected, but cannot all change the pH value and hardness of water, so there are also Water purification machine pretreatment filter combination in increase resin filter element pretreated water is softened, thus play absorbing calcium ions and magnesium ions, The effect of hardness and pH value is reduced to reach better protecting effect, and by ultrafiltration membrane purification, resin filter element softening it is pre- Discharge concentrated water turbidity, solids total content, pH value, hardness, total plate count and the body that processing soft water is retained through reverse osmosis membrane filtration It tests sense and is superior to raw water, be good domestic water supplement, but resin filter element is easily saturated the absorption of calcium ions and magnesium ions, thus Effect is lost, need to replace in time or carries out ion exchange regeneration with sodium chloride brine, installs the small-sized pure of resin filter element additional at present Water dispenser, resin filter element are disposable design, i.e., are replaced by special maintenance personnel within every 1-3 months primary, and big are increased Consumables cost and cost of labor bring additional financial burden and inconvenience for user.

Summary of the invention

Soften the object of the present invention is to provide a kind of pretreatment and regenerate open plus salt system, which when in use can be automatic The softening resin of pretreatment system is carried out plus salt displacement regenerates, and the possessed open salt pond of opening can be extremely convenient Addition soften salt grain, do not need professional and carry out demolition and maintenance, be only capable of providing pure water or pure water, water purification in traditional water purification machine On the basis of not only comprehensively reduce the use cost of water purification machine, extend water purification machine filter core and pump, valve service life, also mention More worth recycle, suitable for cleaning the high-quality reverse osmosis concentrated water washed is supplied.To achieve the above object, the present invention provides one Kind pretreatment softening regeneration is open to add salt system, including net by inlet pipeline, ultrafiltration membrane, water pipeline, softening resin and softening The pretreatment water purification melded system of water lines composition；By water pipe, liquid level sensor is provided with for holding the spacious of soft water salt The open salt pond of mouth, saline line, the open of the first blowoff line composition add salt displacement regenerative system.

The further ultrafiltration membrane include ultrafiltration membrane, for ultrafiltration membrane is installed and be respectively arranged with ultrafiltration membrane water inlet and The ultrafiltration putamina of ultrafiltration membrane water outlet, what the ultrafiltration membrane contacted in ultrafiltration putamina with the connection of ultrafiltration membrane water inlet, with raw water Part is raw water side；It is connected to ultrafiltration membrane water outlet, the part of output water purification is water purification side.

The further softening resin includes the resin filter flask equipped with softening resin, and resin filter flask both ends are respectively arranged with Resin filter flask water inlet and resin filter flask water outlet.

The further resin filter flask refers to the container for containing resin.

The further ultrafiltration membrane water inlet is connect with inlet pipeline, and ultrafiltration membrane water outlet is divided into two branches, all the way Water pipe by being equipped with water compensating valve is connected to the open salt pond of opening for being provided with liquid level sensor；Pass through pipeline all the way It is connect with the water inlet end of the first inlet valve, the water outlet of first inlet valve is connected to the water inlet of resin filter flask by water pipeline Mouthful, the water inlet end that the resin filter flask water outlet is connected to the second inlet valve by softening water pipeline.

The further open salt pond is by being sequentially installed with the saline line and water pipeline of brine valve, brine pump It is connected in parallel with resin filter flask water inlet.

The further brine pump has limitation flow direction can only be to resin filter flask water inlet or resin filter flask water outlet stream Dynamic one-way conduction function.

The further softening water pipeline also bypasses the first blowoff line for being equipped with the first blowdown valve.

Preferably, the water outlet of the saline line in parallel with resin filter flask water outlet and softening water pipeline can also connect It connects, the water pipeline connected between the first inlet valve and resin filter flask water inlet in this way, which also bypasses, is equipped with the second blowdown valve Second blowoff line.

In addition, softening the open water purification machine for adding salt system of regeneration, packet comprising above-mentioned pretreatment the present invention also provides a kind of Include reverse osmosis membrane and for installing reverse osmosis membrane and being respectively arranged with feed water by reverse osmosis mouth, reverse osmose pure-water mouth and reverse osmosis concentrated water The pressure vessel for reverse osmosis of mouth.

The water outlet of further second inlet valve is connected to instead by being provided with the pressurization inlet pipeline of booster pump Water inlet is permeated, the reverse osmose pure-water mouth passes through the first check valve and height that is sequentially installed with and can only flow to pure water water outlet The pure water pipeline to compress switch is connected to pure water water outlet and pure water cylinder in parallel；The reverse osmosis concentrated mouth of a river is connected by concentrated water pipeline It is connected to flow-limiting valve water inlet end, the water outlet of the flow-limiting valve is vented or by piping connection to domestic water pipeline.

Preferably the present invention also provides the pure water recoils for softening open regeneration plus salt system and water purification machine comprising pretreatment Pre-process melded system, comprising: be equipped with pure water recoil valve and can only to softening water pipeline flow second one-way valve it is pure Water lines rinse the third inlet valve of softening resin and ultrafiltration membrane for pure water differential concatenation and are equipped with the of third blowdown valve Second blowoff line of three blowoff lines, the softening resin that individually recoils for pure water；The water inlet end of the pure water backflushing pipe with The pure water pipeline connected between first check valve and pure water water outlet is connected in parallel, and water outlet is in parallel with softening water pipeline to be connected It connects；The water outlet of the third inlet valve is connect with inlet pipeline, and the inlet pipeline also bypasses and is equipped with third blowdown valve Third blowoff line.

Further, the present invention in resin filter element salt water displacement regeneration refer to softening resin adsorption water in calcium and magnesium from After son reaches saturation, soaking flushing is carried out to resin using salt water, the sodium ion in salt water will soften the calcium and magnesium of resin adsorption from Son is replaced to be discharged in water, again through blowoff line, is carried out positive flushing to calcium and magnesium waste liquid is remained in resin filter flask using water purification, is made Back flush is carried out to resin filter element with pure water, resin is made to restore the process of softening function of exchange.

The further ultrafiltration membrane any one can also be replaced by ceramic element, PP fabric filter element or folding membrane filter etc. Generation.

Pump, the valve controlled in the further present invention by control system is electronic or electrically-controlled valve.

The present invention also provides pretreatments to soften the open control method for adding salt system of regeneration, including pretreatment softening regeneration With water purification rinse softening resin, control system the combination liquid level sensor by the following course of work control the first inlet valve, The movement of second inlet valve, water compensating valve, brine valve, brine pump, the first blowdown valve or the second blowdown valve, by the water inlet of inlet pipeline End connect with tap water pipe line, accesses power supply, control system preset the first inlet valve, the second inlet valve, brine valve, brine pump, First blowdown valve or the second blowdown valve are circuit off-state, i.e. the first inlet valve powers off valve and opens, the second inlet valve, salt water Valve, the first blowdown valve or the second blowdown valve power-off valve are closed；Anhydrous or water level is lower than liquid level sensor in open salt pond Preset water level, water compensating valve energization valve are opened, and raw water introduces the output water purification after ultrafiltration membrance filter of ultrafiltration putamina by inlet pipeline, It is flowed out again through ultrafiltration membrane water outlet, is divided into two-way, a-road-through crosses water pipe and enters open open salt pond, when open salt pond When interior water level reaches the preset water level of liquid level sensor, water compensating valve powers off valve and closes, and stops to open salt pond moisturizing；One Road introduces resin filter flask, softened resin softening by the first inlet valve and water pipeline, and output softening water purification comes together in softening Water pipeline, system are in standby；Saline line water outlet is connected in parallel with water pipeline and resin filter flask water inlet, soft When change resin adds salt to regenerate: the first inlet valve energization valve is closed, and brine valve, the first blowdown valve energization valve are opened, brine pump Be powered operation, and the salt water in open salt pond is drawn through saline line through brine pump, resin filter flask water inlet introduces resin filter Bottle carries out sodium to softening resin and calcium ions and magnesium ions displacement regenerates, and the calcium-magnesium-containing waste liquid after displacement regeneration is discharged through resin filter flask again Mouth, softening water pipeline, the first blowoff line and the first blowdown valve are discharged, and water level decreasing is lower than level sensing in open salt pond When device preset water level, water compensating valve energization valve is opened, and raw water introduces ultrafiltration membrane by inlet pipeline, output water purification through water pipe, Water compensating valve enters open salt pond, and when salt water displacement regeneration ending switchs to water purification flushing softening resin, brine valve powers off valve and closes It closes, brine pump power-off shuts down, water level is increased to liquid level sensor preset height, water compensating valve power-off valve in open salt pond It closes；First inlet valve powers off valve and opens, and raw water introduces ultrafiltration putamina through ultrafiltration membrance filter output water purification by inlet pipeline, leads to Cross water pipeline, the first inlet valve resin filter flask water inlet enters resin filter flask, rinse softening resin and will be in resin filter flask Remain the dilution cleaning of calcium and magnesium waste liquid, then the discharge of softened water pipeline, the first blowoff line, the first blowdown valve.

Preferably, the saline line water outlet is connected in parallel with resin filter flask water outlet and softening water pipeline, is softened When resin adds salt displacement regeneration: the first inlet valve energization valve is closed, and brine valve, the second blowdown valve energization valve are opened, salt water Pump, which is powered, to be run, and the salt water in open salt pond is pumped through brine pump into softening water pipeline, by resin filter flask water outlet It is redirected back into resin filter flask and sodium and calcium ions and magnesium ions displacement regeneration is carried out to softening resin, the calcium-magnesium-containing waste liquid after displacement regeneration passes through again Resin filter flask water inlet and the second blowoff line, the second blowdown valve are discharged, and water level decreasing is lower than level sensing in open salt pond When device preset water level, water compensating valve energization valve is opened, and raw water introduces ultrafiltration membrane by inlet pipeline, output water purification through water pipe, Water compensating valve enters open salt pond, and when salt water displacement regeneration ending switchs to water purification flushing softening resin, brine valve powers off valve and closes It closes, brine pump power-off shuts down, water level is increased to liquid level sensor preset height, water compensating valve power-off valve in open salt pond It closes, the second blowdown valve power-off valve is closed；First inlet valve powers off valve opening, the first blowdown valve energization valve is opened, former Water introduces ultrafiltration putamina through ultrafiltration membrance filter output water purification by inlet pipeline, enters resin by water pipeline, the first inlet valve Filter flask rinses softening resin and will remain the dilution cleaning of calcium and magnesium waste liquid, then softened water pipeline, first row in resin filter flask Dirty pipeline, the discharge of the first blowdown valve.

The present invention also provides the control methods for softening the open water purification machine for adding salt system of regeneration comprising above-mentioned pretreatment: former Water by inlet pipeline introduce ultrafiltration putamina after ultrafiltration membrane purifies output ultrafiltration water purification through the first inlet valve, water pipeline introduce tree Rouge filter flask, then the softening of softened resin, output soften water purification and draw through resin filter flask water outlet, come together in softening water pipeline, When Pure-water Making, the second inlet valve energization valve is opened, and booster pump, which is powered, to be run, and softens water purification through the second inlet valve, pressure inlet Pass is drawn through reverse osmosis membrane filtration output pure water by pure water mouth to booster pump into pressure vessel for reverse osmosis after booster pump is pressurized, Pure water cylinder is flowed into through pure water pipeline, or opens the outflow of pure water water outlet and takes；It generates concentrated water to draw by concentrated water spout, through concentrated water Pipeline, flow-limiting valve are discharged or are connected to domestic water pipeline and utilize again.

The present invention also provides a kind of control methods that pretreatment melded system is backwashed comprising above-mentioned pure water, including salt water Pipeline water outlet is connected in parallel with water pipeline and resin filter flask water inlet, and pure water back flush softens resin and ultrafiltration membrane；Salt Water lines water outlet is connected in parallel with resin filter flask water outlet and softening water pipeline, and pure water back flush softens resin and ultrafiltration Film.

Saline line water outlet is connected in parallel with resin filter flask water inlet and water pipeline, and pure water back flush softens resin When with ultrafiltration membrane: pure water recoil valve energization valve is opened, and the first inlet valve energization valve is closed, and the second blowdown valve energization valve is beaten It opens, pure water is redirected back into resin filter flask by pure water pipeline, pure water backflushing pipe and softening water pipeline in pure water cylinder, to softening Resin carries out pure water rinsing, and flushing water is arranged through resin filter flask water inlet, water pipeline, the second blowoff line and the second blowdown valve Out；The first inlet valve power-off valve is opened when rinsing ultrafiltration membrane, and the second blowdown valve powers off valve and closes, third inlet valve energization valve Door is closed, and third blowdown valve energization valve is opened, and the pure water for rinsing softening resin enters through the first inlet valve ultrafiltration membrane water outlet Ultrafiltration membrane is carried out by the lateral raw water side of water purification reversely through rinsing in ultrafiltration putamina, flushing water is through third blowoff line, third Blowdown valve discharge the advantage is that the dirt that can more thoroughly exclude in resin filter flask, and will be embedded in ultrafiltration membrane film Obstinate crystallizable mineral dissolution in layer, it is effective to restore ultrafiltration membrane flux, extend ultrafiltration membrane service life.

The advantages and positive effects of the present invention are: because open open salt pond design, can easily supplement Soft water salt grain, makes softening resin carry out automatic replacing regeneration in time, sufficiently extends softening resin service life, does not need profession and sell Personnel change softening resin afterwards or manual regeneration is handled.

The Visible pollutants such as iron rust, silt are eliminated through ultrafiltration membrance filter and bacterium, microorganism, organic matter and gel produce Water purification out, then the softening of softened resin eliminate the calcium ions and magnesium ions for easily forming scale crystallization, reduce the pH value and hardness of water, are Good domestic water, the pretreated water as reverse osmosis water purification machine can effectively avoid reverse osmosis membrane because of crystallizable mineral, micro- life The problems such as producing water water quality caused by object corrosion and gel attachment etc. deteriorates, water yield declines, concentrated water water quality is discharged in reverse osmosis membrane The indexs such as turbidity, total plate count, hardness and pH value be superior to raw water, more preferably in recycling.

In the present invention, it is not directed to part in the device and is the same as those in the prior art or can be realized by using the prior art, In conjunction with a kind of pretreatment softening regeneration open plus the salt system and water purification machine of the invention, the present invention traditional water purification machine only Pure water, softening water purification, scientific and effective extension filter core service lifes at different levels are provided on the basis of offer pure water or pure water, water purification While, it additionally provides and is suitable for cleaning the reverse osmosis concentrated water that washing is worth recycling better than raw water quality, solve reverse osmosis Saturating concentrated water water quality is poor, and the drawbacks of should not recycling, the overall reduction use cost of miniature water purifier is significantly extended pure The service life of water dispenser.

Detailed description of the invention

Fig. 1 is that pretreatment softening regeneration is open in the present invention plus salt system saline line water outlet intakes with resin filter flask The schematic diagram that mouth and water pipeline are connected in parallel.

Fig. 2 is that pretreatment softening regeneration is open in the present invention plus salt system saline line water outlet is discharged with resin filter flask The schematic diagram that mouth and softening water pipeline are connected in parallel.

Fig. 3 is the structural schematic diagram of the open water purification machine for adding salt system of pretreatment softening regeneration in the present invention.

Fig. 4 is in the present invention comprising the open water purification machine for adding salt system of pretreatment softening regeneration, pure water recoil softening tree The schematic diagram of rouge and ultrafiltration membrane.

Fig. 5, which is that pretreatment softening regeneration is open in the present invention, adds salt system and water purification machine, saline line water outlet and water purification When pipeline and resin filter flask water inlet are connected in parallel, the schematic diagram of pure water recoil pretreatment melded system.

Fig. 6, which is that pretreatment softening regeneration is open in the present invention, adds salt system and water purification machine, saline line water outlet and tree When rouge filter flask water outlet and softening water pipeline are connected in parallel, the schematic diagram of pure water recoil pretreatment melded system.

Fig. 7 is the open control system figure for adding salt system and water purification machine of pretreatment softening regeneration in the present invention.

In figure:

1 ultrafiltration putamina, 101 ultrafiltration membrane water inlets, 102 ultrafiltration membrane water outlets, 2 ultrafiltration membranes, 201 raw water sides, 202 water purifications Side, 3 resin filter flasks, 301 resin filter flask water inlets, 302 resin filter flask water outlets, 4 softening resins, 5 open salt ponds, 6 reverse osmosis Permeable membrane shell, 601 feed water by reverse osmosis mouths, 602 reverse osmose pure-water mouths, the 603 reverse osmosis concentrated mouths of a river, 7 reverse osmosis membranes, 8 inlet pipelines, 9 Third inlet valve, 10 water pipelines, 11 first blowoff lines, 12 first blowdown valves, 13 softening water pipelines, 14 second water inlets Valve, 15 second blowoff lines, 16 second blowdown valves, 17 booster pumps, 18 brine pumps, 19 water compensating valves, 20 water pipes, 21 salt water Pipeline, 22 first check valves, 23 pure water pipelines, 24 high-voltage switch gears, 25 pure water water end (W.E.)s, 26 pure water cylinders, 27 flow-limiting valves, 28 liquid levels Sensor, 29 first inlet valves, 30 brine valves, 31 softening clear water faucets, 32 concentrated water pipelines, 33 pure water backflushing pipes, 34 thirds Blowdown valve, 35 third blowoff lines, 36 pure water recoil valves, 37 second one-way valves, 38 pressure pipings, 39 control systems, 40 softenings Water purification bye-pass.

Specific embodiment

It elaborates below with reference to the accompanying drawings and in conjunction with the embodiments to the present invention.Below with reference to the reality of attached drawing description It applies example to be exemplary, it is intended to be used to explain the present invention and be not considered as limiting the invention.

Pretreatment softening regeneration as shown in Figure 1 is open to add salt system, saline line water outlet and resin filter flask water inlet The schematic diagram being connected in parallel with water pipeline, including by inlet pipeline 8, ultrafiltration membrane 2, water pipeline 10, softening resin 4 and softening The pretreatment water purification melded system that water pipeline 13 forms；By water pipe 20, be provided with liquid level sensor 28 for hold it is soft The opening in the open salt pond 5 of opening, saline line 21, the first blowoff line 11 composition of water salt adds salt regenerative system.

The further ultrafiltration membrane includes ultrafiltration membrane 2, for installing ultrafiltration membrane 2 and being respectively arranged with ultrafiltration membrane water inlet 101 and ultrafiltration membrane water outlet 101 ultrafiltration putamina 1, the ultrafiltration membrane 2 in ultrafiltration putamina 1 with ultrafiltration membrane water inlet 101 connect Part that is logical, contacting with raw water is raw water side 201；It is connected to ultrafiltration membrane water outlet 102, the part of output water purification is water purification side 202。

The further softening resin 4 includes the resin filter flask 3 equipped with softening resin 4, and 3 both ends of resin filter flask are set respectively It is equipped with resin filter flask water inlet 301 and resin filter flask water outlet 302.

The further resin filter flask 3 refers to the container for containing resin.

The further ultrafiltration membrane water inlet 101 is connect with the water outlet of inlet pipeline 8, the ultrafiltration membrane water outlet 102 points are two branches, are connected to by being equipped with the water pipe 20 of water compensating valve 19 are provided with liquid level sensor 28 all the way Open open salt pond 5；It is connect all the way by pipeline with the water inlet end of the first inlet valve 29, first inlet valve 29 goes out Water end (W.E.) is connect by water pipeline 10 with resin filter flask water inlet 301, and resin filter flask water outlet 302 passes through softening water pipeline 13 It is connected to the water inlet end of the second inlet valve 14.

The further softening water pipeline 13 also bypasses the first blowoff line 11 for being equipped with the first blowdown valve 12.

The further open salt pond 5 by be sequentially installed with the saline line 21 of brine valve 30, brine pump 18 with Water pipeline 10 and resin filter flask water inlet 301 are connected in parallel.

The one-way conduction that there is the further brine pump 18 limitation flow direction can only flow to resin filter flask water inlet 301 Function.

Water outlet and the water pipeline 10 and tree of saline line 21 are described in detail below by embodiment 1 and in conjunction with Fig. 1 When rouge filter flask water inlet 301 is connected in parallel, the course of work of pretreatment softening regeneration and water purification flushing softening resin 4, the control System 39 processed combines liquid level sensor 28 to control the first inlet valve 29, the second inlet valve 14, water compensating valve by the following course of work 19, the movement of brine valve 30, brine pump 18, the first blowdown valve 12, the water inlet end of inlet pipeline 8 is connect with tap water pipe line, Power supply is accessed, control system 39 presets the first inlet valve 29, the second inlet valve 14, brine valve 30, brine pump 18, the first blowdown valve 12 circuit is off-state, i.e. the first inlet valve 29 powers off valve and opens, the second inlet valve 14, brine valve 30, the first blowdown Valve 12 powers off valve and closes；Open salt pond 5 is lower than the preset water level of liquid level sensor 28 without water or water level, and water compensating valve 19 is logical Electric valve is opened, and the output after the filtering of ultrafiltration membrane 2 is net by inlet pipeline 8, the introducing ultrafiltration putamina 1 of ultrafiltration membrane water inlet 101 for raw water Water, then flowed out through ultrafiltration membrane water outlet 102, it is divided into two-way, a-road-through crosses water pipe 20 and enters open open salt pond 5, When the water level in open salt pond 5 reaches the preset water level of liquid level sensor 28, water compensating valve 19 powers off valve and closes, and stops to opening Put 5 moisturizing of formula salt pond；Resin filter flask 3 is introduced by the first inlet valve 29 and water pipeline 10 all the way, softened resin 4 softens, Output softening water purification comes together in softening water pipeline 13；System is in standby；The default softening resin of control system 39 adds salt Displacement regeneration opens only time point, duration, sequence etc. with water purification flushing softening resin, reaches preset softening resin and salt is added to replace After reproduction time point, system start automatically softening resin 4 plus salt displacement regeneration: 29 energization valve of the first inlet valve close, salt Water valve 30,12 energization valve of the first blowdown valve are opened, and brine pump 18, which is powered, to be run, and 5 salt water is through brine pump in open salt pond 18 are drawn through saline line 21, resin filter flask water inlet 301 introduce 3 pairs of softening resins 4 of resin filter flask progress sodium and calcium and magnesium from Son displacement regeneration, the calcium-magnesium-containing waste liquid after displacement regeneration is again through resin filter flask water outlet 302, softening water pipeline 13, first row Dirty pipeline 11 and the discharge of the first blowdown valve 12, the water level decreasing in open salt pond 5 to the preset water level for being lower than liquid level sensor 28 When, 19 energization valve of water compensating valve is opened, and raw water introduces ultrafiltration putamina 1 by inlet pipeline 8, ultrafiltration membrane water inlet 101, passes through ultrafiltration Film 2 filters output water purification and enters open salt pond 5 through water pipe 20, water compensating valve 19, reaches preset plus salt displacement regeneration stops Only switch to water purification after time point and rinse softening resin: brine valve 30 powers off valve closing, the power-off of brine pump 18 shuts down, opens The water level in formula salt pond 5 is increased to the preset height of liquid level sensor 28, and water compensating valve 19 powers off valve and closes, and the first inlet valve 29 is disconnected Electric valve is opened, and raw water introduces ultrafiltration putamina 1 by inlet pipeline 8 and filters output water purification through ultrafiltration membrane 2, passes through the first inlet valve 29, water pipeline 10, resin filter flask water inlet 301 enter resin filter flask 3, and flushing softens resin 4 and will be residual in resin filter flask 3 The dilution cleaning of calcium and magnesium waste liquid, then softened water pipeline 13, the first blowoff line 11 and the discharge of the first blowdown valve 12 are stayed, reaches pre- If water purification rinse softening 4 end time of resin after, the first blowdown valve 12 powers off valve and closes, and system restores to standby mode.

Pretreatment softening regeneration as shown in Figure 2 is open plus salt system, 21 water outlet of saline line and resin filter flask are discharged The schematic diagrames that mouth 302 and softening water pipeline 13 are connected in parallel, the water outlet of the saline line 21 and resin filter flask water outlet 302 are connected in parallel with softening water pipeline 13, and the water pipeline 10 also bypasses the second blowdown for being equipped with the second blowdown valve 16 Pipeline 15, rest part is identical as Fig. 1, and details are not described herein again.

Pretreatment softening regeneration is described in detail below by embodiment 2 and in conjunction with Fig. 2 and opens and adds salt system, saline line When water outlet and resin filter flask water outlet 302 and softening water pipeline 13 are connected in parallel, pretreatment softening adds salt regeneration and water purification Rinse the course of work of softening resin: the control system 39 combines liquid level sensor 28 to pass through following course of work control first Inlet valve 29, the second inlet valve 14, water compensating valve 19, brine valve 30, brine pump 18, the first blowdown valve 12 and the second blowdown valve 16 The water inlet end of inlet pipeline 8 connect with tap water pipe line, accesses power supply by movement, control system 39 preset the first inlet valve 29, Second inlet valve 14, brine valve 30, brine pump 18, the first blowdown valve 12, the second blowdown valve 16 circuit be off-state, i.e., the One inlet valve 29 powers off valve and opens, and the second inlet valve 14, brine valve 30, the first blowdown valve 12 and the second blowdown valve 16 power off valve Door is closed；Open salt pond 5 is lower than the preset water level of liquid level sensor 28 without water or water level, and 19 energization valve of water compensating valve is beaten It opens, raw water introduces the output water purification after the filtering of ultrafiltration membrane 2 of ultrafiltration putamina 1 by inlet pipeline 8, then flows through ultrafiltration membrane water outlet 102 Out, it is divided into two-way, a-road-through crosses water pipe 20 and enters open open salt pond 5, when the water level in open salt pond 5 reaches liquid When the preset water level of level sensor 28, water compensating valve 19 powers off valve and closes, and stops to open 5 moisturizing of salt pond；All the way by the One inlet valve 29 and water pipeline 10 introduce resin filter flask 3, and softened resin 4 softens, and it is net that output softening water purification comes together in softening Water lines 13, system is in standby；Default 4 points of resin of the softening of control system 39 adds salt displacement regeneration and water purification to rinse softening Resin opens only time point, duration, sequence etc., reach preset softening resin add salt replace reproduction time point after, system is automatic Starting softening resin 4 adds salt displacement regeneration: 29 energization valve of the first inlet valve is closed, and brine valve 30, the second blowdown valve 16 are logical Electric valve is opened, and brine pump 18, which is powered, to be run, and the salt water in open salt pond 5 is pumped through brine pump 18 into softening water pipeline 13,3 pairs of softening resins 4 of resin filter flask are redirected back into through resin filter flask water outlet 302 and carry out sodium and calcium ions and magnesium ions displacement regeneration, are set Calcium-magnesium-containing waste liquid after changing regeneration is discharged through resin filter flask water inlet 301 and the second blowoff line 15, the second blowdown valve 16 again, opens When putting water level decreasing to the preset water level for being lower than liquid level sensor 28 in formula salt pond 5,19 energization valve of water compensating valve open, raw water by Inlet pipeline 8 introduces ultrafiltration putamina 1, and output water purification enters open salt pond 5 through water pipe 20, water compensating valve 19, reaches default Plus salt displacement regeneration ending time point after switch to water purification rinse softening resin 4, the first inlet valve 29 power off valve opening, salt water The power-off valve of valve 30 is closed, the power-off of brine pump 18 shuts down, the water level in open salt pond 5 is increased to the pre- of liquid level sensor 28 If height, water compensating valve 19 powers off valve closing, the second blowdown valve 16 power-off valve is closed, and 12 energization valve of the first blowdown valve is beaten It opens, raw water enters ultrafiltration putamina 1 by inlet pipeline 8, filters off removing rust, silt, bacterium, microorganism, colloid through ultrafiltration membrane 4 Body, output water purification come together in ultrafiltration membrane water purification side 202, flow out through ultrafiltration membrane water outlet 102, pass through the first inlet valve 29, water purification Pipeline 10, which enters in resin filter flask 3, is rinsed softening resin 4, and the high concentration calcium and magnesium retained in resin filter flask 3 is given up Liquid dilution is rinsed, softened water pipeline 13, the first blowoff line 11 and the discharge of the first blowdown valve 12.

As shown in Figure 3 regenerates open plus salt system water purification machine, including pressurization inlet pipeline 38 comprising pretreatment softening With reverse osmosis membrane 7, the reverse osmosis membrane includes reverse osmosis membrane 7 and penetrates into for installing reverse osmosis membrane 7 and being respectively arranged with reverse osmosis The pressure vessel for reverse osmosis 6 at the reverse osmosis concentrated mouth of a river 603 of 601 reverse osmose pure-water mouth of the mouth of a river 602；The water outlet of second inlet valve 14 is logical It crosses and is provided with the pressurization inlet pipeline 38 of booster pump 17 and is connected to reverse osmosis membrane water inlet 601, the reverse osmose pure-water mouth 602 is logical Cross the connection of pure water pipeline 23 for being sequentially installed with the first check valve 22 and high-voltage switch gear 24 that can only flow to pure water water outlet 25 To pure water water outlet 25 in parallel and pure water cylinder 26；The reverse osmosis concentrated mouth of a river 603 is connected to flow-limiting valve by concentrated water pipeline 32 The water outlet of 27 water inlet end, the flow-limiting valve 27 is vented or by piping connection to domestic water pipeline.

The water purification machine comprising pretreatment softening regeneration open system is described in detail below by embodiment 3 and in conjunction with Fig. 3 The course of work, when pure water processed, 14 energization valve of feed water by reverse osmosis valve is opened, and booster pump logical 17 is powered operation, softening water purification warp Softening water pipeline 13, reverse osmosis purified water valve 14 lead to booster pump 17, and pressure vessel for reverse osmosis 6, warp are entered after the pressurization of booster pump 17 Output pure water introduces pure water cylinder through reverse osmosis membrane pure water mouth 602, the first check valve 22, pure water pipeline 23 after reverse osmosis membrane 7 filters 26 or open pure water water end (W.E.) 25 outflow take, generate concentrated water drawn through the reverse osmosis concentrated mouth of a river 603, pass through 32 He of concentrated water pipeline Flow-limiting valve 27 is discharged.

Softening water purification bye-pass 40, which is also bypassed, as the preferred softening water pipeline 13 is connected to softening clear water faucet 31, When taking softening water purification, softening clear water faucet 31 is opened, raw water introduces ultrafiltration putamina 1 after the purification of ultrafiltration membrane 2 by inlet pipeline 8 Output ultrafiltration water purification introduces resin filter flask 3 through water pipeline 10, resin filter flask water inlet 301, then softened resin 4 softens, and produces Softening water purification is drawn through resin filter flask water outlet 302 out, softening water pipeline 13 and softening water purification bye-pass 40 is come together in, through soft Change the outflow of clear water faucet 31 to take.

The present invention also provides a kind of pure water to backwash the structural schematic diagram that pretreatment softens regenerative system as shown in Figure 4, Including pure water backflushing pipe 33, the second blowdown valve 16 and third inlet valve 9, the input end and first of the pure water backflushing pipe 33 Check valve 22 and pure water are connected in parallel with the pure water pipeline 23 connected between water end (W.E.) 25, water outlet and saline line 21 or softening Water pipeline 13 is connected in parallel, and the pure water backflushing pipe 33 is also sequentially installed with pure water recoil valve 36 and can only be to resin filter flask Water outlet flowing second one-way valve 37, second blowdown valve 16 with soften water pipeline 10 be connected in parallel, the third into The water outlet of water valve 9 is connect with the water inlet end of inlet pipeline 8, and also bypass is equipped with third blowdown valve to the inlet pipeline 8 outward 34 third blowoff line 35.

Pure water series connection backwash pretreatment softening regenerative system is described in detail below by embodiment 4 and in conjunction with Fig. 4 Working method, including pure water individually backwash softening resin 4 and pure water series connection backwash softening resin 4 and ultrafiltration membrane 2；Pure water list Solely when backwash softening resin 4: 29 energization valve of the first inlet valve is closed, and 36 energization valve of pure water recoil valve is opened, second row Dirty 16 energization valve of valve is opened, and the pure water of pure water cylinder 26 is anti-through pure water pipeline 23, pure water backflushing pipe 33, softening water pipeline 13 To resin filter flask 3 is entered, pure water rinsing is carried out to the softening resin 4 in resin filter flask 3, flushing water is through 15 He of the second blowoff line The discharge of second blowdown valve 16；When pure water series connection backwash softening resin 4 and ultrafiltration membrane 2: 36 energization valve of pure water recoil valve is opened, 9 energization valve of third inlet valve is closed, and 34 energization valve of third blowdown valve is opened, and the pure water in pure water cylinder 26 is through pure water pipeline 23, soften water pipeline 13, resin filter flask water outlet 302 is redirected back into 3 pairs of softening resins 4 of resin filter flask and is rinsed, flushing Water passes through resin filter flask water inlet 301, water pipeline 10, ultrafiltration membrane water outlet 102 again and is redirected back into ultrafiltration putamina 1, to super Filter membrane 2 carries out reversely rinsing sewage through third blowoff line 35, third blowdown through rinsing from water purification side 202 to raw water side 201 Valve 34 is discharged.

Pretreatment softening regeneration as shown in Figure 5 is open to add salt system and water purification machine, pure water recoil pretreatment melded system Schematic diagram, water outlet and the water pipeline 10 and resin filter flask water inlet 301 of the saline line 21 are connected in parallel, described pure Water dispenser and pure water backpurge system are identical as Fig. 3 and Fig. 4, and details are not described herein again.

Pretreatment softening regeneration open plus salt system and pure are described in detail below by embodiment 5 and in conjunction with Fig. 5, Fig. 7 Detailed operation when water dispenser, 21 water outlet of saline line and resin filter flask water inlet 301 and water pipeline 10 are connected in parallel: The control system 39 combines liquid level sensor 28 and high-voltage switch gear 24 to pass through the first inlet valve 29 of following course of work control, the Two inlet valves 14, water compensating valve 19, brine valve 30, brine pump 18, the first blowdown valve 12, booster pump 17, pure water recoil valve 36, second The movement of blowdown valve 16, third blowdown valve 34, third inlet valve 9, the water inlet end of inlet pipeline 8 is connect with tap water pipe line, Access power supply, control system 39 preset the first inlet valve 29, brine valve 30, brine pump 18, the first blowdown valve 12 circuit be disconnected Open state, i.e. the first inlet valve 29, third inlet valve 9 power off valve and open, the second inlet valve 14, brine valve 30, the first blowdown Valve 12, the second blowdown valve 16, third blowdown valve 34, pure water recoil valve 36 power off valve and close；Open salt pond 5 does not have water or water Position is lower than the preset water level of liquid level sensor 28, and 19 energization valve of water compensating valve is opened, and raw water introduces ultrafiltration putamina by inlet pipeline 8 The 1 output water purification after the filtering of ultrafiltration membrane 2, then flowed out through ultrafiltration membrane water outlet 102, it is divided into two-way, a-road-through crosses water pipe 20 Into open open salt pond 5, when the water level in open salt pond 5 reaches the preset water level of liquid level sensor 28, water compensating valve 19 power-off valves are closed, and are stopped to open 5 moisturizing of salt pond；Resin is introduced by the first inlet valve 29 and water pipeline 10 all the way Filter flask 3, softened resin 4 soften, and output softening water purification comes together in softening water pipeline 13；The pressure of pure water pipeline 23 is lower than height Compress switch 24 preset value when Pure-water Making: 14 energization valve of the second inlet valve open, booster pump 17 be powered operation, soften water purification Pressure vessel for reverse osmosis 6 is entered by pressure piping 38 after the pressurization of booster pump 17, Pure water preparation is carried out by reverse osmosis membrane 7, output is pure Water introduces pure water cylinder 26 through pure water pipeline 23, generates concentrated water and is discharged through concentrated water pipeline 32 and flow-limiting valve 27,26 water of pure water cylinder is full, pure When the pressure of water lines 23 reaches the preset value of high-voltage switch gear 24, the second inlet valve 14 powers off valve closing, booster pump 17 powers off System out of service is in standby；The default pretreatment softening of control system 39 regenerates open plus the salt system course of work open Only time point, duration, sequence etc., operating procedure are as follows: softening resin 4 plus salt regeneration → water purification flushing softening 4 → pure water of resin are anti- Softening 4 → pure water of resin series connection backwash softening resin 4 and ultrafiltration membrane 2 is rinsed, when reaching softening resin 4 plus the regenerated starting of salt Between put after, 29 energization valve of the first inlet valve close, 30 energization valve of brine valve open, brine pump 18 be powered operation, first row Dirty 12 energization valve of valve is opened, the salt water in open salt pond 5 after brine pump 18 is pumped by 10 resin filter flask of water pipeline into The mouth of a river 301 enters 3 pairs of softening resins 4 of resin filter flask and carries out sodium and calcium ions and magnesium ions displacement regeneration, the calcium that softening resin 4 cements out Magnesium is dissolved in salt water, and calcium-magnesium-containing remaining waste is through resin filter flask water outlet 302, softening water pipeline 13, the first blowoff line 11 It is discharged with the first blowdown valve 12, when the water level in open salt pond 5 is lower than the preset water level of liquid level sensor 28, water compensating valve 19 is powered Valve is opened, and the water purification filtered through ultrafiltration membrane 2 introduces open salt pond 5 by water pipe 20, reaches softening resin 4 plus salt again When raw dwell time point switchs to water purification flushing softening resin 4, brine valve 30 powers off valve and closes, the power-off stopping fortune of brine pump 18 Row, when the water level in open salt pond 5 reaches 28 preset water level of liquid level sensor, water compensating valve 19 powers off valve and closes, the first water inlet Valve 29 powers off valve and opens, and the water purification for purifying output through ultrafiltration membrane 2 enters resin by the first inlet valve 29 and water pipeline 10 Filter flask 3 is rinsed softening resin 4, and calcium-magnesium-containing waste liquid remaining in resin filter flask 3 dilution is flushed through softening only Water lines 13, the first blowoff line 11 and the discharge of the first blowdown valve 12 reach water purification and rinse the time point turn that softening resin 4 terminates When backwashing softening resin 4 for pure water, the first blowdown valve 12 powers off valve and closes, and 29 energization valve of the first inlet valve is closed, pure 36 energization valve of water recoil valve is opened, and 16 energization valve of the second blowdown valve is opened, and storage pure water is through pure water pipeline in pure water cylinder 26 23, pure water backflushing pipe 33, pure water recoil valve 36, second one-way valve 37, softening water pipeline 13, resin filter flask water outlet 302, Into resin filter flask 3, softening resin 4 is rinsed, the softened resin filter flask water inlet 301 of flushing waste, the second sewage pipe Road 15 and the discharge of the second blowdown valve 16；Switch to pure water series connection backwash after reaching the time point that pure water rinsing softening resin 4 terminates Soften resin 4 and 2: the second blowdown valve 16 of ultrafiltration membrane power-off valve is closed, 9 energization valve of third inlet valve is closed, third blowdown 34 energization valve of valve is opened, and the pure water of recoil softening resin 4 passes through water pipeline 10, the first inlet valve 29, ultrafiltration membrane water outlet 102, which are redirected back into ultrafiltration putamina 1, is carried out reversely through flushing, flushing waste water ultrafiltration membrane 2 from water purification side 202 to raw water side 201 It is discharged through ultrafiltration membrane water inlet 101,8 third blowoff line 35 of inlet pipeline and third blowdown valve 34.

Pretreatment softening regeneration as shown in FIG. 6 is open to add salt system and water purification machine, pure water recoil pretreatment melded system Schematic diagram, the water outlet of the saline line 21 and resin filter flask water outlet 302 and softening water pipeline 13 be connected in parallel, institute It states water purification machine and pure water backpurge system is identical as Fig. 3 and Fig. 4, details are not described herein again.

Pretreatment softening regeneration open plus salt system and pure are described in detail below by embodiment 6 and in conjunction with Fig. 6, Fig. 7 Detailed operation when water dispenser, 21 water outlet of saline line and resin filter flask water outlet 302 and softening water pipeline 13 are connected in parallel Process: the control system 39 combines liquid level sensor 28 and high-voltage switch gear 24 to control the first inlet valve by the following course of work 29, the second inlet valve 14, water compensating valve 19, brine valve 30, brine pump 18, the first blowdown valve 12, booster pump 17, pure water recoil valve 36, the movement of the second blowdown valve 16, third blowdown valve 34, third inlet valve 9, by the water inlet end and running water pipe of inlet pipeline 8 Road connection, access power supply, control system 39 preset the electricity of the first inlet valve 29, brine valve 30, brine pump 18, the first blowdown valve 12 Road is off-state, i.e. the first inlet valve 29, third inlet valve 9 power off valve and open, the second inlet valve 14, brine valve 30, the One blowdown valve 12, the second blowdown valve 16, third blowdown valve 34, pure water recoil valve 36 power off valve and close；Open salt pond 5 does not have Water or water level are lower than the preset water level of liquid level sensor 28, and 19 energization valve of water compensating valve is opened, and raw water is introduced super by inlet pipeline 8 The output water purification after the filtering of ultrafiltration membrane 2 of filter membrane shell 1, then flowed out through ultrafiltration membrane water outlet 102, it is divided into two-way, a-road-through crosses moisturizing Pipeline 20 enters open open salt pond 5, when the water level in open salt pond 5 reaches the preset water level of liquid level sensor 28, Water compensating valve 19 powers off valve and closes, and stops to open 5 moisturizing of salt pond；Drawn all the way by the first inlet valve 29 and water pipeline 10 Enter resin filter flask 3, softened resin 4 softens, and output softening water purification comes together in softening water pipeline 13；The pressure of pure water pipeline 23 Lower than high-voltage switch gear 24 preset value when Pure-water Making: 14 energization valve of the second inlet valve open, booster pump 17 be powered operation, it is soft Change water purification and Pure water preparation carried out by reverse osmosis membrane 7 into pressure vessel for reverse osmosis 6 by pressure piping 38 after the pressurization of booster pump 17, Output pure water introduces pure water cylinder 26 through pure water pipeline 23, generates concentrated water and is discharged through concentrated water pipeline 32 and flow-limiting valve 27, pure water cylinder 26 When water is expired, the pressure of pure water pipeline 23 reaches the preset value of high-voltage switch gear 24, the second inlet valve 14 powers off valve closing, booster pump 17 power-off systems out of service are in standby；The default pretreatment softening regeneration of control system 39 is open plus salt system is worked Journey opens only time point, duration, sequence etc., operating procedure are as follows: softening resin 4 plus salt regeneration → water purification rinse softening resin 4 → Pure water backwash softening 4 → pure water of resin series connection backwash softening resin 4 and ultrafiltration membrane 2, reach softening resin 4 plus salt are regenerated After starting time point, 29 energization valve of the first inlet valve is closed, operation that 30 energization valve of brine valve is opened, brine pump 18 is powered, Second blowdown valve, 16 energization valve open, the salt water in open salt pond 5 after brine pump 18 is pumped by softening water pipeline 13, Resin filter flask water outlet 302 enters 3 pairs of softening resins 4 of resin filter flask and carries out sodium and calcium ions and magnesium ions displacement regeneration, the calcium displaced Magnesium is dissolved in salt water, and calcium-magnesium-containing remaining waste passes through resin filter flask water inlet 301, water pipeline 10,15 and of the second blowoff line The discharge of second blowdown valve 16,19 energization valve of water compensating valve when the water level in open salt pond 5 is lower than 28 preset water level of liquid level sensor It opens, the water purification filtered through ultrafiltration membrane 4 introduces open salt pond 5 by water pipe 20, reaches softening resin 4 plus salt is regenerated When dwell time point switchs to water purification square impact softening resin: brine valve 30 powers off valve and closes, and brine pump 18 powers off out of service, opens When putting the water level in formula salt pond 5 and reaching the preset water level of liquid level sensor 28, water compensating valve 19 powers off valve and closes, the second blowdown valve 16 It powers off valve and closes the first inlet valve 29 power-off valve opening, 12 energization valve of the first blowdown valve is opened, filtered only through ultrafiltration membrane 2 The water purification for changing output enters resin filter flask 3 by the first inlet valve 29 and water pipeline 10, is rinsed to softening resin 4, and And calcium-magnesium-containing waste liquid remaining in resin filter flask 3 dilution is flushed through softening water pipeline 13, the first blowoff line 11 and the One blowdown valve 12 discharge, reach water purification just rinse softening resin 4 terminate time point switch to pure water backwash softening resin 4 when: First blowdown valve 12 powers off valve and closes, and 29 energization valve of the first inlet valve is closed, and 36 energization valve of pure water recoil valve is opened, the Two blowdown valves, 16 energization valve is opened, and storage pure water recoils through pure water pipeline 23, pure water backflushing pipe 33, pure water in pure water cylinder 26 Valve 36, second one-way valve 37, softening water pipeline 13, resin filter flask water outlet 302 enter resin filter flask 3, to softening resin 4 into Row back flush, the softened resin water inlet filter flask 301 of flushing waste, the second blowoff line 15 and the discharge of the second blowdown valve 16, Reach and switchs to pure water series connection backwash softening resin 4 and ultrafiltration membrane 2 after the time point that pure water recoil softening resin 4 terminates, second Blowdown valve 16 powers off valve closing, 9 energization valve of third inlet valve is closed, 34 energization valve of third blowdown valve is opened, and recoils soft The pure water for changing resin 4 is redirected back into ultrafiltration putamina 1 to ultrafiltration membrane 2 by water purification side by 10 ultrafiltration membrane water outlet 102 of water pipeline 202 carry out to raw water side 201 reversely through rinsing, and flushing waste water is through ultrafiltration membrane water inlet 101,8 third sewage pipe of inlet pipeline Is discharged in road 35 and third blowdown valve 34

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (8)

1. pretreatment softening regeneration is open plus salt system, including by inlet pipeline (8), ultrafiltration membrane (2), water pipeline (10), soft Change resin (4) and softens the pretreatment water purification melded system of water pipeline (13) composition；By water pipe (20), it is provided with liquid level Sensor (28) is used to hold the open salt pond (5) of opening of soft water salt, saline line (21), the first blowoff line (11) composition Open plus salt displacement regenerative system；It is characterized by: ultrafiltration membrane water inlet (101) is connect with inlet pipeline (8)；Ultrafiltration membrane Water outlet (102) is divided into two branches, all the way to be equipped with the water pipe that water compensating valve (19) is connect with open salt pond (5) (20), the open salt pond (5) is also connected with the saline line (21) for being equipped with brine valve (30) and brine pump (18)；A-road-through The water inlet end of piping connection to the first inlet valve (29) is crossed, the water outlet of first inlet valve (29) passes through water pipeline (10) Connect with resin filter flask water inlet (301), resin filter flask water outlet (302) by soften water pipeline (13) be connected to second into The water inlet end of water valve (14).

2. pretreatment softening regeneration according to claim 1 is open to add salt system, which is characterized in that the saline line (21) water outlet is connected in parallel with water pipeline (10) and resin filter flask water inlet (301).

3. pretreatment softening regeneration according to claim 1 is open to add salt system, which is characterized in that the saline line (21) water outlet is connected in parallel with softening water pipeline (13) and resin filter flask water outlet (302).

4. pretreatment softening regeneration according to claim 1 is open to add salt system, which is characterized in that the softening pure water pipe Road (13) also bypasses the first blowoff line (11) for being equipped with the first blowdown valve (12).

5. pretreatment softening regeneration according to claim 1 is open to add salt system, which is characterized in that the water pipeline (10) the second blowoff line (15) for being equipped with the second blowdown valve (16) is also bypassed.

6. a kind of using the open water purification machine for adding salt system of pretreatment softening regeneration described in claim 1, which is characterized in that institute The water outlet for stating the second inlet valve (14) is connected to reverse osmosis membrane water inlet by being equipped with the pressure piping (38) of booster pump (17) Mouth (601)；Reverse osmosis membrane pure water mouth (602) passes through the first check valve (22) that is provided with and can only flow to pure water water outlet (25) Pure water cylinder (26) and pure water water outlet (25) are separately connected with the pure water pipeline (23) of high-voltage switch gear (24)；The reverse osmosis membrane is dense The mouth of a river (603) is connected to flow-limiting valve (27) by concentrated water pipeline (32).

7. water purification machine according to claim 6, which is characterized in that first check valve (22) and pure water water outlet (25) Between connect pure water pipeline (23) bypass with soften water pipeline (13) connect and be disposed with pure water recoil valve (36) and The pure water backflushing pipe (33) for the second one-way valve (37) that can only be flowed to softening water pipeline (13).

8. water purification machine according to claim 6 or 7, which is characterized in that the water inlet end and third inlet valve of inlet pipeline (8) (9) water outlet connection, the inlet pipeline (8) also bypass the third blowoff line (35) for being provided with third blowdown valve (34).