CN109780270A - A kind of electromagnetism selector valve - Google Patents
A kind of electromagnetism selector valve Download PDFInfo
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- CN109780270A CN109780270A CN201910275836.5A CN201910275836A CN109780270A CN 109780270 A CN109780270 A CN 109780270A CN 201910275836 A CN201910275836 A CN 201910275836A CN 109780270 A CN109780270 A CN 109780270A
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- core case
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- 239000007788 liquid Substances 0.000 claims abstract description 95
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 6
- 230000001737 promoting effect Effects 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000037361 pathway Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention discloses a kind of electromagnetism selector valves, including valve body one, valve body two, spool, valve core case and lifting device；Valve body one is bonding by adhesive surface respectively with valve body two；The mounting surface of valve body one is equipped with fluid hole and inlet opening, and the adhesive surface of valve body two is equipped with liquid outlet and inlet, and mounting surface is equipped with valve core case mounting hole, is equipped with valve core case in it；Inlet opening, the fluid hole of valve body one are connected with the inlet of valve body two, liquid outlet respectively；Valve core case is equipped with spool mounting hole and the radial liquid flow through-hole penetrated through and be set to spool two sides of mounting hole；Inlet, the liquid outlet of valve body two are connected with the liquid flow through-hole of two sides respectively；Spool is set in spool mounting hole by lifting device；Spool lower part is equipped with liquid flow through slot；When electromagnetism selector valve is in the open state, liquid flow through slot is connected with the two sides liquid flow through-hole of valve core case.The present invention is switched by control valve core up and down motion application valve body internal channel, can effectively realize the selection switching in channel.
Description
Technical field
The present invention relates to sampling valve technical fields, and in particular to a kind of electromagnetism selector valve.
Background technique
A kind of means of the chemical analyzer as water quality detection are largely the development of China environmental protection work
Provide support.Similar with manual method detection, chemical analyzer can use a variety of different reagents when in use, and as analysis
Instrument should realize automation as far as possible.So most analysis instrument can be realized by using the mode of selector valve it is more
The different reagents of kind are automatically added to.
There are two types of more selector valves applied currently on the market, one is mechanical selector valve, by rotation valve face come
Change feed pathway, to realize the selection of different reagents, the major defect of this valve is that valve passes through after prolonged use,
The case where being easy to happen valve face abrasion, channel offset or leakage；Another kind is electromagnetism selector valve, by the unlatching of solenoid valve and
The selection to realize feed pathway is closed, the sealing means of this solenoid valve are to squeeze to seal using sealing ring, and this valve will not
Occur valve face abrasion, channel offset the case where, but this valve into liquid directly contacted with sealing ring, such as encounter deep-etching
Property, strong acid and strong base or the case where high temperature and pressure, sealing ring is easy to damage, and what this largely shortened valve uses the longevity
Life, meanwhile, sealing ring is also easy to produce deformation after repeatedly squeezing, it is difficult to and restore elasticity, plays ideal sealing effect, from
And the phenomenon that generating leakage.
Summary of the invention
The purpose of the present invention is to solve defect existing in the prior art, provide that a kind of service life is longer, is not easy
The selector valve of the phenomenon of leakage occurs.
In order to achieve the above object, the present invention provides a kind of electromagnetism selector valves, including valve body one, valve body two, spool, valve
Core print seat and lifting device；Valve body one, valve body two both ends of the surface be respectively mounting surface and adhesive surface；Valve body one leads to respectively with valve body two
It is bonding to cross adhesive surface；The mounting surface of valve body one is equipped with fluid hole and inlet opening, the adhesive surface of valve body two be equipped with liquid outlet and into
Liquid mouth, mounting surface are equipped with valve core case mounting hole；The inlet opening of valve body one is connected with the inlet of valve body two, and valve body two goes out liquid
Mouth is connected with the fluid hole of valve body one；Valve core case is fixed in valve core case mounting hole；Valve core case be equipped with spool mounting hole,
And the radial liquid flow through-hole penetrated through and be set to spool two sides of mounting hole；The inlet of valve body two and the liquid of valve core case side
Recirculation hole is connected, and the liquid flow through-hole of the valve core case other side is connected with the liquid outlet of valve body two；Spool passes through lifting device
It can be up or down in the spool mounting hole of valve core case；Spool lower part is equipped with liquid flow through slot；When electromagnetism selector valve is in
When open state, liquid flow through slot is connected with the two sides liquid flow through-hole of valve core case；When electromagnetism selector valve is in close state
When, the two sides liquid flow through-hole of valve core case is mutually in sealing contact with the outer wall of spool respectively close to one end of spool mounting hole.
Wherein, spool and valve core case transition fit.
The up and down motion for being promoted, being pushed by spool, the channel switch between control valve core and valve core case, to effectively control
The circulation of feed liquor processed and out liquid realizes sealing effect by the structure of valve body itself, without the setting of sealing ring, while instead of
The valve face of tradition machinery valve body rotates control, effectively prevents valve face abrasion, increases the service life of valve body.
Further, the mounting surface of the adhesive surface of valve body two and valve body one be respectively equipped with multiple one-to-one inlets and
Inlet opening；The adhesive surface of valve body one is equipped with multiple grooves, and the beginning of each groove is connected with the liquid outlet of two adhesive surface of valve body respectively
Logical, terminal is connected with the fluid hole of one mounting surface of valve body；The liquid outlet of valve body two is gone out by respective grooves and valve body one
Fluid apertures is connected；The mounting surface of valve body two is respectively equipped with the multiple and one-to-one valve core case mounting hole of inlet；Each valve core case
Valve core case is respectively equipped in mounting hole；It can be moved up and down by corresponding lifting device respectively in the spool mounting hole of each valve core case
Ground is equipped with corresponding spool；When electromagnetism selector valve carries out channel switching, the arc-shaped liquid of spool corresponding to the channel of connection
Body circulation groove is connected with the two sides liquid flow through-hole of corresponding valve core case, the two sides liquid flow of valve core case corresponding to rest channels
One end of the nearly spool mounting hole of through-hole is mutually in sealing contact with the outer wall of corresponding spool respectively.
By the setting of one-to-one multiple inlets, inlet opening, valve core case, spool, multiplexer channel can be effectively realized
Selection setting.
Further, valve body one, valve body two, spool, valve core case are all made of hard material, and such as ceramics (are suitable for deep-etching
Property liquid), metal, plastic or other material.
Further, the spool inner wall of the hole installing of valve core case, the outer wall of spool are shiny surface.At grinding and polishing
Reason does not allow liquid or gas to leak out to realize country's cooperation of spool and valve core case.
Further, above-mentioned lifting device includes promoting solenoid valve, solenoid valve fixinig plate；Solenoid valve fixinig plate is equipped with valve
Axis hole；Spool is equipped with valve shaft fixation hole；Solenoid valve is promoted to be fixed on valve body two by solenoid valve fixinig plate；Promote electromagnetism
The valve shaft hole that the valve shaft of valve passes through solenoid valve fixinig plate is placed in the valve shaft fixation hole of corresponding spool, and is fixed with corresponding spool
It is connected.Function is above proposed and pushed by promotion solenoid valve realization spool.
Further, fixed pin holes, the corresponding position of valve core case are equipped at the position of the corresponding valve core case mounting hole of valve body two
Place is equipped with dowel hole.By the corresponding positioning of fixed pin holes and dowel hole, the position positioning of valve core case and valve body two is realized,
So that the correspondence inlet of valve body two, liquid outlet are connected with the liquid flow through-hole of valve core case two sides, at the same facilitate valve body two with
The fixation of valve core case.
Further, the venthole to connect is respectively equipped on valve body one and valve body two.
The present invention has the advantage that compared with prior art
The present invention is moved up and down by control valve core to the circulation of application valve body internal channel, substitution tradition machinery valve valve face rotation
Or the control mode of solenoid valve open and close, can effectively realize channel selection switching or switch, and avoid valve face abrasion or
The phenomenon of leakage caused by sealing ring deformation.
Electromagnetism selector valve of the present invention uses hard material, realizes rigid seal by grinding and polishing, without using sealing ring,
Ideal sealing effect can be reached, further extend service life, and improve the liquid applicability of valve body.
Inlet and liquid outlet are designed as the structure vertical with valve face by the present invention, and it is parallel with valve face to change inlet
Traditional structure effectively reduces the volume of valve.
Electromagnetism selector valve of the present invention proposes a kind of novel channel switch mode, and structure is simple, easy to operate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of electromagnetism selector valve in the embodiment of the present invention 1；
Fig. 2 is the assembling schematic diagram that solenoid valve and valve core case are promoted in Fig. 1；
Fig. 3 is the mounting surface structural schematic diagram of valve body one in Fig. 1；
Fig. 4 is the adhesive surface structural schematic diagram of valve body one in Fig. 1；
Fig. 5 is the adhesive surface structural schematic diagram of valve body two in Fig. 1；
Fig. 6 is the mounting surface structural schematic diagram of valve body two in Fig. 1；
Fig. 7 is the structural schematic diagram of valve core case in Fig. 2；
Fig. 8 is the structural schematic diagram of spool in Fig. 2；
Fig. 9 is the cross-sectional view of spool and valve core case when electromagnetism selects valve passage to close in embodiment 1；
Figure 10 is the cross-sectional view of spool and valve core case when a certain channel of electromagnetism selector valve is opened in embodiment 1；
Figure 11 is the structural schematic diagram of electromagnetism selector valve in the embodiment of the present invention 2；
Figure 12 is that electromagnetism selects valve passage schematic diagram in the embodiment of the present invention 2.
In Fig. 1 to 10,1- inlet opening, 2- groove, 3- fluid hole, 4- venthole, 5- mounting hole, 6- inlet, 7- goes out liquid
Mouthful, 8- venthole, 9- solenoid valve mounting hole, 10- valve core case mounting hole, 11- valve core case fixed pin holes, 12- spool mounting hole,
13,14- liquid flow through-hole, 15- solenoid shaft fixation hole, 16- liquid flow through slot, 17- solenoid shaft, 18- promote solenoid valve,
19- solenoid valve fixinig plate, 20- spool, 21- valve core case, 22- valve body two, 23- valve body；
Figure 11, in 12,110- valve body, 310- valve core case, 410- spool, 510- promotes solenoid valve, 511- solenoid valve fixinig plate,
111- inlet, 112- liquid outlet, 210- venthole, 211- solenoid valve fixation hole, 212- valve core case fixed pin holes, 311- liquid
Recirculation hole.
Specific embodiment
Electromagnetism selector valve of the present invention is described in detail with reference to the accompanying drawing.
Embodiment 1
As shown in Figure 1, electromagnetism selector valve of the present invention includes valve body and multiple one-to-one promotion solenoid valves 18, solenoid valve
Fixinig plate, spool and valve core case 21.Valve body includes bonding valve body 1 and valve body 2 22.
By taking ten-way valve as an example, as shown in figure 3, valve body one has ten inlet openings 1, wherein nine are circlewise divided equally in valve body one
Mounting surface side, another position on the lower side in the middle part of the valve face.Corresponding, it is short total that the adhesive surface of valve body one is carved with nine long one
Ten liquid communication groove 2(are as shown in Figure 4), this ten grooves 2 intersect at a point, this puts the liquid outlet for being set as liquid, and
It connects with the fluid hole 3 being arranged on mounting surface.One side of valve body is equipped with several ventholes 4.
As shown in figure 5, corresponding to valve body one, ten inlets 6 and ten are respectively provided on the adhesive surface of valve body two
A liquid outlet 7, wherein 6 position of inlet of valve body two is corresponding with 1 position of inlet opening of valve body one to be overlapped and be mutually communicated；Valve
The position of two liquid outlet 7 of body is overlapped with 2 beginning of groove of valve body one.The side of valve body two is equipped with several ventholes 8.One He of valve body
The ventilation hole site of valve body two is overlapped, and through valve body one and valve body two.As shown in fig. 6, the mounting surface of valve body two is corresponding each
A valve core case mounting hole 10 is respectively provided at the position of inlet and liquid outlet, each installation of valve core case 21 is set to corresponding valve core case
In mounting hole 10.
As shown in fig. 7, the aperture of the spool mounting hole 12 of valve core case center position setting is identical as the outer diameter of spool, and
The inner surface of spool mounting hole and the outer surface of spool are both needed to polish smooth, and the installation of spool 20 is set in spool mounting hole 12, peace
Air tight, no leakage is required when dress；12 two sides of spool mounting hole of valve core case offer respectively perforative liquid flow through-hole 13,
14, two sides liquid flow through-hole point-blank, and two sides liquid flow through-hole inlet 6 corresponding with valve body two and liquid out respectively
Mouth 7 is connected；Dowel hole on valve core case is located at the radial edges position vertical with liquid flow through slot, in conjunction with Fig. 6, valve body
Two corresponding positions are equipped with valve core case fixed pin holes 11, and when installation, the valve core case of dowel hole and valve body two on valve core case is solid
Fixed pin hole 11 is corresponding, and semi-circular design is used in this embodiment, inserts in the circular pin hole that the two surrounds by cylindrical pin shaft
The interior fixation for carrying out valve core case and valve body two.
As shown in figure 8, spool lower part is equipped with liquid flow through slot 16 along side, which is arc-shaped, circular arc half
Diameter is greater than 180 degree (to be connected to the liquid communication of two sides when being in same plane with the liquid flow through-hole of valve core case
Hole).Spool upper end is equipped with solenoid shaft fixation hole 15, is fixedly mounted by the solenoid shaft fixation hole 15 and promotes solenoid valve 18,
It is above mentioned by promoting solenoid valve 18 with movable valve plug, downward motion.
As shown in Fig. 2, Fig. 6, the electricity that solenoid valve 18 is fixed at two mounting surface of valve body by solenoid valve fixinig plate 19 is promoted
On magnet valve mounting hole 9.Solenoid shaft 17 passes through solenoid valve fixinig plate 19 and is fixed in the solenoid shaft fixation hole 15 of spool 20.
The promotion solenoid valve power being mounted on spool not necessarily requires unanimously, can select different capacity size as needed
Solenoid valve, correspond to the solenoid valve function of mouth as the power of the solenoid valve of reagent into is smaller than control high temperature and pressure digestion pool
Rate.
As shown in figure 9, the liquid flow through slot 16 of spool is lower than the liquid flow through-hole 13,14 of valve core case when channel is closed；Such as
Shown in Figure 10, when a certain channel is opened, the liquid flow through slot 16 of corresponding spool and the liquid flow through-hole 13,14 of valve core case are same
Highly.
In use, inlet opening 1, the fluid hole 3 on valve body one need to only be connected with pipe fitting and connector.Classes of agents
The corresponding inlet 6 of valve body two is flowed into from each inlet opening 1 of valve body one respectively.When needing to select to switch a certain channel, this is logical
The corresponding promotion solenoid valve 18 in road above mentions spool 20, and the liquid flow through-hole of valve core case and the liquid flow through slot of spool are corresponding logical
Road is opened, liquid from the inlet 6 of valve body two followed by valve core case liquid communication into hole 13, the liquid flow through slot of spool
16, the liquid communication of valve core case, which is portalled, enters the liquid outlet 7 of valve body two after 14, then via the groove 2 of valve body one from valve body one
Fluid hole 3 flow out.When needing to carry out channel closing, when promoting solenoid valve 18 for the pushing of spool 20, the liquid flow of valve core case
Through-hole channel corresponding with the liquid flow through slot of spool is closed, and liquid can not be flowed through from the liquid flow through slot of spool.
Embodiment 2
The present embodiment is the example of single-pass solenoid valve, and the structure difference with multi-pass electromagnetism selector valve in embodiment 1 is: spool
410, promoted solenoid valve 510, solenoid valve fixinig plate 511, valve core case 310 quantity be one；The inlet opening and valve of valve body one
The corresponding perforation of the inlet of body two, and quantity is one；The perforation corresponding with the liquid outlet of valve body two of the fluid hole of valve body one, and number
Amount is one；The adhesive surface of valve body one is no longer equipped with groove；Other structures are consistent with the structure in embodiment 1, such as Figure 11, Figure 12
It is shown.
As shown in figure 12, the concrete operating principle of this single-pass solenoid valve are as follows: liquid enters valve core case from valve body inlet 111
Liquid communication into hole 311, when solenoid valve above mentions spool, channel is opened, the liquid flow through slot of spool and the liquid of valve core case
Body recirculation hole is in sustained height, at this point, liquid flows through the liquid flow through slot of spool, Zhi Houcong from the liquid communication of valve core case into hole
The liquid communication of valve core case, which is portalled, flows into valve body liquid outlet, and flows out from liquid outlet 112；When solenoid valve pushes spool, liquid
Body can not be flowed through from the liquid flow through slot of spool, at this point, the channel of the single-pass solenoid valve is in off state.
Claims (9)
1. a kind of electromagnetism selector valve, it is characterised in that: including valve body one, valve body two, spool, valve core case and lifting device；It is described
Valve body one, valve body two both ends of the surface be respectively mounting surface and adhesive surface；The valve body one passes through adhesive surface phase with valve body two respectively
Bonding；The mounting surface of the valve body one is equipped with fluid hole and inlet opening, and the adhesive surface of the valve body two is equipped with liquid outlet and feed liquor
Mouthful, mounting surface is equipped with valve core case mounting hole；The inlet opening of the valve body one is connected with the inlet of valve body two, the valve body two
Liquid outlet be connected with the fluid hole of valve body one；The valve core case is fixed in valve core case mounting hole；On the valve core case
Equipped with spool mounting hole and the radial liquid flow through-hole penetrated through and be set to spool two sides of mounting hole；The feed liquor of the valve body two
Mouth is connected with the liquid flow through-hole of valve core case side, and the liquid flow through-hole of the valve core case other side is connected with the liquid outlet of valve body two
It is logical；The spool can be up or down in the spool mounting hole of valve core case by the lifting device；The spool lower end
Equipped with liquid flow through slot；When the electromagnetism selector valve is in the open state, the two of the liquid flow through slot and the valve core case
Side liquid flow through-hole is connected；When the electromagnetism selector valve is in close state, the two sides liquid flow through-hole of the valve core case
One end close to spool mounting hole is mutually in sealing contact with the outer wall of the spool respectively.
2. electromagnetism selector valve according to claim 1, it is characterised in that: the adhesive surface of the valve body two and the peace of valve body one
Dress face is respectively equipped with multiple one-to-one inlets and inlet opening；The adhesive surface of the valve body one is equipped with multiple grooves, each ditch
The beginning of slot is connected with the liquid outlet of two adhesive surface of valve body respectively, and terminal is connected with the fluid hole of one mounting surface of valve body；
The liquid outlet of the valve body two is connected by respective grooves with the fluid hole of valve body one；The mounting surface of the valve body two is set respectively
There is the multiple and one-to-one valve core case mounting hole of inlet；The valve core case is respectively equipped in each valve core case mounting hole；Each valve
Corresponding spool can be equipped with by corresponding lifting device up or down respectively in the spool mounting hole of core print seat；When the electromagnetism
When selector valve carries out channel switching, the liquid flow through slot of spool corresponding to the channel of connection and the two sides liquid of corresponding valve core case
Recirculation hole is connected, one end of the nearly spool mounting hole of two sides liquid flow through-hole of valve core case corresponding to rest channels respectively with it is right
Answer the outer wall of spool mutually in sealing contact.
3. electromagnetism selector valve according to claim 1 or 2, it is characterised in that: the valve body one, valve body two, spool, spool
Seat is all made of hard material.
4. electromagnetism selector valve according to claim 3, it is characterised in that: the hard material is using ceramics, metal or modeling
Material.
5. electromagnetism selector valve according to claim 3, it is characterised in that: the spool inner wall of the hole installing of the valve core case, valve
The outer wall of core is shiny surface.
6. electromagnetism selector valve according to claim 5, it is characterised in that: the lifting device includes promoting solenoid valve, electricity
Magnet valve fixinig plate；The promotion solenoid valve fixinig plate is equipped with valve shaft hole；The spool is equipped with valve shaft fixation hole；The promotion
Solenoid valve is fixed on valve body two by solenoid valve fixinig plate；The valve shaft for promoting solenoid valve passes through solenoid valve fixinig plate
Valve shaft hole is placed in the valve shaft fixation hole of corresponding spool, and is fixedly linked with corresponding spool.
7. electromagnetism selector valve according to claim 5, it is characterised in that: the position of the corresponding valve core case mounting hole of the valve body two
It sets place and is equipped with fixed pin holes, the corresponding position of valve core case is equipped with dowel hole.
8. electromagnetism selector valve according to claim 5, it is characterised in that: be respectively equipped with phase on the valve body one and valve body two
The venthole of perforation.
9. electromagnetism selector valve according to claim 5, it is characterised in that: the liquid flow through slot is arc-shaped or annulus
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275836.5A CN109780270B (en) | 2019-04-08 | 2019-04-08 | Electromagnetic selector valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910275836.5A CN109780270B (en) | 2019-04-08 | 2019-04-08 | Electromagnetic selector valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109780270A true CN109780270A (en) | 2019-05-21 |
| CN109780270B CN109780270B (en) | 2023-12-19 |
Family
ID=66491095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910275836.5A Active CN109780270B (en) | 2019-04-08 | 2019-04-08 | Electromagnetic selector valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109780270B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664682A (en) * | 2019-10-16 | 2021-04-16 | J.施迈茨有限公司 | Valve for fluidically connecting two pneumatic pumps |
| DE102022110478A1 (en) | 2022-04-29 | 2023-11-02 | Kärcher Futuretech GmbH | SWITCHING VALVE FOR SWITCHING BETWEEN A PERMEATE-STAGED OPERATION AND A CONCENTRATE-STAGED OPERATION OF A MULTI-STAGE REVERSE OSMOSIS SYSTEM |
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| CN112664682A (en) * | 2019-10-16 | 2021-04-16 | J.施迈茨有限公司 | Valve for fluidically connecting two pneumatic pumps |
| CN112664682B (en) * | 2019-10-16 | 2023-01-03 | J.施迈茨有限公司 | Valve for fluidically connecting two pneumatic pumps |
| DE102022110478A1 (en) | 2022-04-29 | 2023-11-02 | Kärcher Futuretech GmbH | SWITCHING VALVE FOR SWITCHING BETWEEN A PERMEATE-STAGED OPERATION AND A CONCENTRATE-STAGED OPERATION OF A MULTI-STAGE REVERSE OSMOSIS SYSTEM |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109780270B (en) | 2023-12-19 |
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