CN101665275A - Automatic control method of water treatment device - Google Patents
Automatic control method of water treatment device Download PDFInfo
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- CN101665275A CN101665275A CN 200910085729 CN200910085729A CN101665275A CN 101665275 A CN101665275 A CN 101665275A CN 200910085729 CN200910085729 CN 200910085729 CN 200910085729 A CN200910085729 A CN 200910085729A CN 101665275 A CN101665275 A CN 101665275A
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Abstract
The invention discloses an automatic control method of a water treatment device. The water treatment device comprises a raw water pump (20), a filtering device (40) and a pure water box (60) sequentially connected by a pipeline. The automatic control method comprises the following steps: detecting the liquid level in the pure water box (60); controlling the raw water pump (20) to start so that thewater treatment device goes into a water making state when the liquid level in the pure water box (60) is lower than a predetermined liquid level; and otherwise, controlling the raw water pump (20) to stop so that the water treatment device goes into a standby state and the predetermined liquid level is 50-90% of the maximum allowable liquid level of the pure water box (60) when the liquid levelis not lower than the predetermined liquid level. The automatic control method of the water treatment device realizes the automatic control of the whole water making process and provides convenience for uses.
Description
Technical field
The present invention relates to a kind of control method of water treatment device, and relate in particular to a kind of autocontrol method of water treatment device.
Background technology
In recent years, along with the fast development of China's rural economy, the fast development of mass-producing, intensive culture industry, however its to the pollution of rural ecological environment also in rapid increase.Intensive culture pollutes to agricultural, rural ecological environment and has caused immense pressure, causes very big pollution particularly for the water body of drinking water source, villages and small towns, and has influenced the drinking water safety in rural area.Vast rural area, China South China is mainly with the water source of natural waters such as dyke surface water or shallow ground water as tap water, any discharging of intensive culture sewage has caused serious Rural Water Environment and waterhead area to pollute, and the rural potable water safety problem is highlighted day by day.
The traditional technology of drinking water treatment at present generally is " coagulating sedimentation---filter---sterilization---purification ", though traditional water technology is to reducing opacity, removing in the water suspended substance has and purifies disinfection preferably, but to present little pollution based on organic contamination, then can not thoroughly remove organic pollutant, cause water quality not up to standard sometimes, and whole water treatment system is very huge, complicated operation, be difficult to realize that fully automated and maintenance and running cost are higher, is not suitable for the Rural areas.Also do not develop at present a kind of simple in structure, be convenient to operate and the lower-cost water treatment device of Rural areas and the autocontrol method of this water treatment device of being applicable to.
Summary of the invention
The active physics processing device system of prior biological is huge in order to overcome, complicated operation, be difficult to the defective that realizes that fully automated and maintenance and running cost are higher, and spy of the present invention provides a kind of water treatment device simple in structure and the autocontrol method of this device.
Water treatment device provided by the invention comprises raw water pump, filtration unit and the clear water tanks that links to each other by pipeline successively, and wherein, the autocontrol method of this device comprises: detect the liquid level in the clear water tanks; When the liquid level in the clear water tanks was lower than predetermined fluid level, the control raw water pump was opened, and described water treatment device enters the system water state; Otherwise the control raw water pump cuts out, and described water treatment device enters stand-by state, and described predetermined fluid level is the 50-90% of the highest permission liquid level of described clear water tanks.
The autocontrol method of water treatment device of the present invention can be controlled the switching of raw water pump automatically according to water purifying liquid level in the clear water tanks, has realized the automatization control of whole water making process, has reduced manual operation, for the user provides convenience.
Description of drawings
Fig. 1 a is the structural representation of water treatment device of the present invention;
Fig. 1 b is the schema of the autocontrol method of water treatment device of the present invention;
Fig. 2 a is the structural representation of second embodiment of water treatment device of the present invention;
Fig. 2 b is the schema of the autocontrol method of water treatment device of the present invention;
Fig. 3 a is the structural representation of the 3rd embodiment of water treatment device of the present invention;
Fig. 3 b is the schema of the autocontrol method of water treatment device of the present invention;
Fig. 4 a is the structural representation of the 4th embodiment of water treatment device of the present invention;
Fig. 4 b is the schema of the autocontrol method of water treatment device of the present invention; And
Fig. 5 is the structural representation of the 5th embodiment of water treatment device of the present invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing.
Fig. 1 a is the structural representation of water treatment device of the present invention, and Fig. 1 b is the schema of the autocontrol method of water treatment device of the present invention.Shown in Fig. 1 a and Fig. 1 b, described water treatment device comprises raw water pump 20, filtration unit 40 and the clear water tanks 60 that links to each other by pipeline successively, and autocontrol method provided by the invention comprises: detect the liquid level in the clear water tanks 60; When the liquid level in the clear water tanks 60 was lower than predetermined fluid level, control raw water pump 20 was opened, and described water treatment device enters the system water state; Otherwise control raw water pump 20 cuts out, and described water treatment device enters stand-by state.
Wherein, the liquid level in the clear water tanks 60 is detected and can realize by water purification liquid level meter 80, this water purification liquid level meter 80 can be electronic level switch or float switch.Above-mentioned control process can realize by controller 90, for example CPM1A-20CDR.Described predetermined fluid level can be set according to actual needs, and for example, described predetermined fluid level can be the 50-90% of described clear water tanks 10 the highest permission liquid levels, is preferably 60-80%; The highest described permission liquid level is defined as the highest liquid level of the liquid that described clear water tanks can hold.
Wherein, described filtration unit 40 comprises filtering film component 410 and the water inlet portion 420 and the product water section 430 that are separated by this filtering film component 410, described water inlet portion 420 links to each other by pipeline with the water outlet of raw water pump 20, and described product water section 430 and clear water tanks 60 link to each other by pipeline.It is 0.005-0.015 μ m that described filtration unit 40 allows the particle diameter of the largest particle that passes through, is preferably 0.01 μ m; Described filtering film component 410 can adopt PVC alloy capillary type ultra-filtration membrane, and the aperture of this ultra-filtration membrane is 0.005-0.015 μ m.
Preferably, shown in Fig. 2 a and Fig. 2 b, described filtration unit 40 also comprises the first concentrated water discharge mouth 440 that is positioned at described product water section 430; Described water treatment device also comprises and produces the water valve 50 and the first dense water valve 110, and in the pipeline of described product water valve 50 between described product water section 430 and clear water tanks 60, the described first dense water valve 110 links to each other by pipeline with the described first concentrated water discharge mouth 440.
Described method also comprises: before the control water treatment device entered the system water state, control product water valve 50 disconnections earlier, first dense water valve 110 conductings, raw water pump 20 were opened, and water treatment device enters the state of just washing, so that filtration unit 40 is just being washed; Water treatment device through described just washing state after, control produces that water valve 50 conductings, the first dense water valve 110 disconnect, raw water pump 20 is opened, water treatment device enters the system water state.This just the process of washing can before former water is filtered, remove residual impurity on the filtering film component 410, prevent that this impurity is brought in the clear water tanks 60, guaranteed to flow through the quality of the water of filtering film component 410.
Preferably, described method also comprises: control described water treatment device and just washing state and making circulation switching between the water state described.The described time length of just washing state and system water state can be set according to actual needs, for example can be respectively 15-60 second and 20-80 minute.By the mode of this kind circulation flushing, can prevent that filtering film component 410 from causing the residual impurity accumulation too much because of working long hours, influence its permeable amount or separating power.
Preferably, shown in Fig. 3 a and Fig. 3 b, described filtration unit 40 comprises the second concentrated water discharge mouth 450 and the backwash water inlet 460 that lays respectively at described water inlet portion 420 and produce water section 430, and this backwash water inlet 460 links to each other by pipeline with the water outlet of raw water pump 20; Described water treatment device also comprises water intaking valve 30, produces water valve 50, second dense water valve 120 and the backwash valve 130, described water intaking valve 30 is in the water outlet and the pipeline between the water inlet portion 420 of described raw water pump 20, in the pipeline of described product water valve 50 between described product water section 430 and clear water tanks 60, the described second dense water valve 120 links to each other by pipeline with the described second concentrated water discharge mouth 450, and described backwash valve 130 is in the water outlet and the pipeline between the described backwash water inlet 460 of raw water pump 20.
Described method also comprises: control water intaking valve 30 and 50 conductings of product water valve, backwash valve 130 and the second dense water valve 120 disconnect, raw water pump 20 is opened, and water treatment device enters the system water state; Through after the described system water state, control water intaking valve 30 and 50 disconnections of product water valve, backwash valve 130 and second dense water valve 120 conductings, raw water pump 20 are opened at water treatment device, and water treatment device enters the backwash state, so that filtration unit 40 is carried out backwash.By this staggered filtering operational mode, the pollutent that has guaranteed to make the film surface of filtering film component 410 to hold back is eliminated before forming thicker filter cake, makes the membrane flux of filtering film component 410 that big decay not take place.
Preferably, described method also comprises: control the switching that circulates between described system water state and backwash state of described water treatment device; The time length of described system water state and backwash state was respectively 20-80 minute and 15-60 second.Add staggered filtering operational mode by this pump around circuit, guaranteed that more effectively filtering film component 410 still can keep membrane flux that big decay does not take place under situation about working long hours.
Certainly, described system water state and the time length of backwash state in single cycle can be set according to actual needs, are not limited to the scope of above-mentioned setting.Need to prove at this, omitted water purification liquid level meter 80, controller 90 and controller 90 and raw water pump 20, water intaking valve 30 among Fig. 3 a, produced the signal link between water valve 50, second dense water valve 120 and the backwash valve 130, to avoid line confusion among the figure.In addition, only show backwash water inlet 460 situations that link to each other with the water outlet of raw water pump 20 among Fig. 3 a, in fact, other water-supply sources of the water that described backwash water inlet 460 can be required with backwash can be provided link to each other.
Preferably, shown in Fig. 4 a and Fig. 4 b, described filtration unit 40 also comprises the second concentrated water discharge mouth 450 that is positioned at described water inlet portion 420 and is positioned at the first concentrated water discharge mouth 440 of described product water section 430 and backwash water inlet 460, and described backwash water inlet 460 links to each other by pipeline with the water outlet of raw water pump 20.
Described water treatment device also comprises water intaking valve 30, produce water valve 50, the first dense water valve 110, second dense water valve 120 and the backwash valve 130, described water intaking valve 30 is in the water outlet and the pipeline between the water inlet portion 420 of described raw water pump 20, in the pipeline of described product water valve 50 between described product water section 430 and clear water tanks 60, the described first dense water valve 110, the second dense water valve 120 links to each other by pipeline with the second concentrated water discharge mouth 450 with the described first concentrated water discharge mouth 440 respectively, and described backwash valve 130 is in the water outlet and the pipeline between the described backwash water inlet 460 of raw water pump 20.
Described method also comprises: before the control water treatment device enters the system water state, the control water intaking valve 30 and first dense water valve 110 conductings earlier, product water valve 50, the second dense water valve 120 and backwash valve 130 disconnect, raw water pump 20 is opened, water treatment device enters the state of just washing, so that filtration unit 40 is just being washed; Water treatment device through described just washing state after, control water intaking valve 30 and produce that water valve 50 conductings, first dense water valve 110, the second dense water valve 120 and backwash valve 130 disconnect, raw water pump 20 is opened, water treatment device enters the system water state; After the described system water state of water treatment device process, control water intaking valve 30, product water valve 50 and first dense water valve 110 disconnections, backwash valve 130 and second dense water valve 120 conductings, raw water pump 20 are opened, water treatment device enters the backwash state, so that filtration unit 40 is carried out backwash.
In this operating mode, make the water process at every turn and be accompanied by the process of just washing and backwash working process, prevented that well impurity on the filter membrane in the filtration unit 40 is brought in the clear water tanks 60 and the membrane flux of filter membrane induced attenuation not.
Preferably, described method also comprises: control described water treatment device and just washing between state, system water state and the backwash state circulation and switch described; The described time length of just washing state, system water state and backwash state can be respectively 15-60 second, 20-80 minute and 15-60 second.Than once just washing and backwash, the workflow that water, backwash were just washed, made in this kind circulation has increased the number of times of just washing with backwash, and the clean filtering membrane module 410 more effectively.
The present inventor finds, microbial contamination is Hazard Factor to the long-term safety operation of filter membrane, some nutritive substances are filtered that membrane module 410 is held back and the film surface that accumulates in filtering film component 410, bacterium is breeding rapidly in this environment, the bacterium that lives is together with its EM, form Microbial slime and tightly adhere to the film surface of filtering film component 410, these mucus combine with other throw outs, constituted the tectum of a complexity, its result not only has influence on the permeable amount of filtering film component 410, produces irreversible damage also can for filtering film component 410.By former water was contacted with a kind of soup earlier before entering filtration unit 40, then can effectively avoid the problems referred to above, therefore, preferably, as shown in Figure 5, described water treatment device can also comprise medical liquid container 140, is used to hold soup; And volume pump 150, the input aperture of this volume pump 150 is connected with described medical liquid container 140, and delivery port is communicated to the pipeline between described raw water pump 10 and the filtration unit 40.Described method also comprises: control described volume pump 150, the soup in the medical liquid container 140 is joined among the pipeline.
Wherein, described soup can be various sterilizing agents, as NaClO, chlorinated lime etc., is mainly used in the xenobiotic (as comprising colibacillary microorganism or various algae) of removing former water, thereby can avoids the disadvantageous effect of these foreign matters to filtration unit.
The autocontrol method of water treatment device of the present invention has been realized whole system current process automation control, has made things convenient for the user.
Claims (8)
1, a kind of autocontrol method of water treatment device, described water treatment device comprise raw water pump (20), filtration unit (40) and the clear water tanks (60) that links to each other by pipeline successively, it is characterized in that described autocontrol method comprises:
Detect the liquid level in the clear water tanks (60);
When the liquid level in the clear water tanks (60) was lower than predetermined fluid level, control raw water pump (20) was opened, and described water treatment device enters the system water state; Otherwise control raw water pump (20) cuts out, and described water treatment device enters stand-by state, and described predetermined fluid level is the 50-90% of the highest permission liquid level of described clear water tanks (60).
2, autocontrol method according to claim 1, wherein,
Described filtration unit (40) comprises filtering film component (410) and water inlet portion (420) that is separated by this filtering film component (410) and the first concentrated water discharge mouth (440) that produces water section (430) and be positioned at described product water section (430), described water inlet portion (420) links to each other by pipeline with the water outlet of raw water pump (20), and described product water section (430) links to each other by pipeline with clear water tanks (60);
Described water treatment device also comprises the product water valve (50) and the first dense water valve (110), described product water valve (50) is arranged in the pipeline between described product water section (430) and the clear water tanks (60), and the described first dense water valve (110) links to each other by pipeline with the described first concentrated water discharge mouth (440);
Described method comprises:
Before the control water treatment device entered the system water state, control product water valve (50) disconnection earlier, first dense water valve (110) conducting, raw water pump (20) were opened, and water treatment device enters the state of just washing, so that filtration unit (40) is just washed;
Water treatment device through described just washing state after, control produces that water valve (50) conducting, the first dense water valve (110) disconnect, raw water pump (20) is opened, water treatment device enters the system water state.
3, autocontrol method according to claim 2, wherein, described method also comprises:
Controlling described water treatment device is just washing state and is making circulation switching between the water state described;
The described time length of just washing state and system water state is respectively 15-60 second and 20-80 minute.
4, autocontrol method according to claim 1, wherein,
The water inlet portion (420) that described filtration unit (40) comprises filtering film component (410), separated by this filtering film component (410) and water part (430) and lay respectively at described water inlet portion (420) and produce the second concentrated water discharge mouth (450) of water section (430) and backwash water enter the mouth (460), described water inlet portion (420) links to each other by pipeline with the water outlet of raw water pump (20), described product water section (430) links to each other by pipeline with clear water tanks (60), and described backwash water inlet (460) links to each other by pipeline with the water outlet of raw water pump (20);
Described water treatment device also comprises water intaking valve (30), produces water valve (50), the second dense water valve (120) and backwash valve (130), described water intaking valve (30) is arranged in the water outlet of described raw water pump (20) and the pipeline between the water inlet portion (420), described product water valve (50) is arranged in the pipeline between described product water section (430) and the clear water tanks (60), the described second dense water valve (120) links to each other by pipeline with the described second concentrated water discharge mouth (450), and described backwash valve (130) is arranged in the water outlet of raw water pump (20) and the pipeline between the described backwash water inlet (460);
Described method comprises:
Control water intaking valve (30) and the conducting of product water valve (50), backwash valve (130) and the disconnection of the second dense water valve (120), raw water pump (20) are opened, and water treatment device enters the system water state;
After the described system water state of water treatment device process, control water intaking valve (30) and product water valve (50) disconnection, backwash valve (130) and second dense water valve (120) conducting, raw water pump (20) are opened, water treatment device enters the backwash state, so that filtration unit (40) is carried out backwash.
5, autocontrol method according to claim 4, wherein, described method also comprises:
Control the switching that between described system water state and backwash state, circulates of described water treatment device;
The time length of described system water state and backwash state was respectively 20-80 minute and 15-60 second.
6, autocontrol method according to claim 1, wherein,
Described filtration unit (40) comprises filtering film component (410), the water inlet portion (420) and water part (430) that separate by this filtering film component (410), be positioned at the second concentrated water discharge mouth (450) of described water inlet portion (420), and the first concentrated water discharge mouth (440) and the backwash water inlet (460) that are positioned at described product water section (430), described water inlet portion (420) links to each other by pipeline with the water outlet of raw water pump (20), described product water section (430) links to each other by pipeline with clear water tanks (60), and described backwash water inlet (460) links to each other by pipeline with the water outlet of raw water pump (20);
Described water treatment device also comprises water intaking valve (30), produce water valve (50), the first dense water valve (110), the second dense water valve (120) and backwash valve (130), described water intaking valve (30) is arranged in the water outlet of described raw water pump (20) and the pipeline between the water inlet portion (420), described product water valve (50) is arranged in the pipeline between described product water section (430) and the clear water tanks (60), the described first dense water valve (110), the second dense water valve (120) links to each other by pipeline with the second concentrated water discharge mouth (450) with the described first concentrated water discharge mouth (440) respectively, and described backwash valve (130) is arranged in the water outlet of raw water pump (20) and the pipeline between the described backwash water inlet (460);
Described method comprises:
Before the control water treatment device enters the system water state, the control water intaking valve (30) and first dense water valve (110) conducting earlier, product water valve (50), the second dense water valve (120) and backwash valve (130) disconnection, raw water pump (20) are opened, water treatment device enters the state of just washing, so that filtration unit (40) is just washed;
Water treatment device through described just washing state after, control water intaking valve (30) and the conducting of product water valve (50), the first dense water valve (110), the second dense water valve (120) and backwash valve (130) disconnection, raw water pump (20) are opened, and water treatment device enters the system water state;
After the described system water state of water treatment device process, control water intaking valve (30), product water valve (50) and the disconnection of the first dense water valve (110), backwash valve (130) and second dense water valve (120) conducting, raw water pump (20) are opened, water treatment device enters the backwash state, so that filtration unit (40) is carried out backwash.
7, autocontrol method according to claim 6, wherein, described method also comprises:
Controlling described water treatment device is just washing between state, system water state and the backwash state circulation and is switching described;
The described time length of just washing state, system water state and backwash state is respectively 15-60 second, 20-80 minute and 15-60 second.
8, autocontrol method according to claim 1, wherein,
Described water treatment device also comprises:
Medical liquid container (140) is used to hold soup; And
Volume pump (150), the input aperture of this volume pump (150) is connected with described medical liquid container (140), and delivery port is communicated to the pipeline between described raw water pump (10) and the filtration unit (40);
Described method also comprises:
Control described volume pump (150), the soup in the medical liquid container (140) is joined among the pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910085729 CN101665275B (en) | 2009-05-27 | 2009-05-27 | Automatic control method of water treatment device |
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| CN 200910085729 CN101665275B (en) | 2009-05-27 | 2009-05-27 | Automatic control method of water treatment device |
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| CN101665275A true CN101665275A (en) | 2010-03-10 |
| CN101665275B CN101665275B (en) | 2013-02-27 |
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| CN 200910085729 Expired - Fee Related CN101665275B (en) | 2009-05-27 | 2009-05-27 | Automatic control method of water treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104803426A (en) * | 2015-04-02 | 2015-07-29 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier and water purifier control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1640828A (en) * | 2004-12-10 | 2005-07-20 | 沈阳建筑大学 | Integrated middle-water reuse apparatus |
| CN1847531A (en) * | 2006-04-17 | 2006-10-18 | 杨克庆 | Abacterial water tank |
| CN100418894C (en) * | 2006-05-14 | 2008-09-17 | 林峰 | Domestic automatic water purifier |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104803426A (en) * | 2015-04-02 | 2015-07-29 | 佛山市顺德区美的饮水机制造有限公司 | Water purifier and water purifier control method |
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