CN203303704U - Filter system - Google Patents
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- CN203303704U CN203303704U CN2013202625893U CN201320262589U CN203303704U CN 203303704 U CN203303704 U CN 203303704U CN 2013202625893 U CN2013202625893 U CN 2013202625893U CN 201320262589 U CN201320262589 U CN 201320262589U CN 203303704 U CN203303704 U CN 203303704U
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- intaking valve
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Abstract
The utility model relates to a filter system. The filter system comprises a shell, a water inlet valve, a water outlet valve, a washing water inlet valve, a washing drain valve, a first back washing water inlet valve, a second back washing water inlet valve and a back washing drain valve, wherein a filter layer is formed inside the shell to divide the inside of the shell into an upper shell body and a lower shell body, a raw water pump is connected with the upper shell through the water inlet valve, the lower shell body is connected with a water outlet through the water outlet valve, a back washing pump is connected with the upper shell body through the washing water inlet valve, the lower shell body is connected with a waste discharge port through the washing drain valve, the back washing pump is connected with the lower shell body through the first back washing water inlet valve, the raw water pump is connected with the lower shell body through the second back washing water inlet valve, and the upper shell body is connected with the waste discharge port through the back washing drain valve. By adopting the filter system provided by the utility model, the double-path washing and back washing of the filter layer by using the raw water and the recycled water are effectively achieved so as to achieve the effective and high-quality cleaning for the filter layer, and the consumption of the raw water in the washing process is greatly saved.
Description
Technical field
The utility model relates to a kind of filtration system, relates in particular to a kind of filtration system for water filtration.
Background technology
In the pure water preparation process, generally need be to water inlet, as running water, well water, lake water or underground water, by the multi-medium filtering system, do pretreatment, to remove suspension or the colloidal state impurity of water inlet, the absorption oil impurities, make clarification of water, reduce pollution index (Silting Density Index, SDI) value.Filtrate commonly used has quartz sand, anthracite, and manganese sand etc., be mainly used in the water treatment turbidity removal, the prime pretreatment of demineralized water, pure water pretreated water etc.Former water after more medium filter is processed is called pretreated water.
Typical multi-medium filtering system is filled and is formed by the multilayer filtrate, and top layer is comprised of the material of the lightest and crude product level, and material the heaviest and the thinnest grade is placed on bottom filtration system.Equipment is pressure type, its principle be Dang Yuanshui from top to bottom when the filtrate, in water, suspension is retained down by the filtering layer surface due to absorption and mechanical choked flow effect; When water flows in the middle of filtering layer, due to the sand grains in filter material layer arrange tightr, make particulate in water have more chance and sand grains to collide, so in water, flocculation material, suspension and sand grain surface adhere to mutually, in water, impurity is trapped in filter material layer, thus the water quality that obtains clarifying.
The utility model content
The purpose of this utility model is the defect for prior art, a kind of filtration system is provided, to realize filter course is utilized forward and the back flush of former water and recycle-water, thereby realize the effective and high-quality cleaning to filter course, save the consumption of cleaning former water.
For achieving the above object, the utility model provides a kind of filtration system, and described filtration system comprises:
Housing, have filter course in described housing, and described filter course will be divided into upper shell and lower house in described housing;
Raw water pump, backwashing pump, delivery port and waste discharge mouth;
Water intaking valve, described raw water pump is connected with described upper shell by described water intaking valve;
Outlet valve, described lower house is connected with described delivery port by described outlet valve;
Just washing water intaking valve, described backwashing pump is connected with described upper shell by the described water intaking valve of just washing;
Just washing draining valve, described lower house is connected with described waste discharge mouth by the described draining valve of just washing;
The first backwash water intaking valve, described backwashing pump is connected with described lower house by described the first backwash water intaking valve;
The second backwash water intaking valve, described raw water pump is connected with described lower house with described the first backwash water intaking valve by described the second backwash water intaking valve;
The backwash draining valve, described upper shell is connected with described waste discharge mouth by described backwash draining valve.
Optionally, described the second backwash water intaking valve is connected with described lower house by described the first backwash water intaking valve.
Optionally, described the second backwash water intaking valve is connected with described upper shell by the described water intaking valve of just washing.
Optionally, described filtration system also comprises the collection water tank, with described backwashing pump, is connected, be used to holding described cleaning recycle-water.
Optionally, described water intaking valve, outlet valve, just to wash water intaking valve, just wash draining valve, the first backwash water intaking valve, the second backwash water intaking valve and backwash draining valve be electric two-way valve.
Optionally, described water intaking valve, outlet valve, just to wash water intaking valve, just wash draining valve, the first backwash water intaking valve, the second backwash water intaking valve and backwash draining valve be Pneumatic two-way valve.
The utility model filtration system has effectively realized utilizing former water and recycle-water to carry out two-way forward and back flush to filter course, thereby realizes the effective and high-quality cleaning to filter course, saves the consumption of cleaning former water.
The accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model filtration system;
Fig. 2 is the flow chart of the utility model filtration system processing method.
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 is the schematic diagram of the utility model filtration system, as shown in the figure, the present embodiment specifically comprises: housing 1, filter course 10, raw water pump 2, backwashing pump 3, delivery port 4, waste discharge mouth 5, water intaking valve 60, outlet valve 61, just wash water intaking valve 62, just wash draining valve 63, the first backwash water intaking valve 64, the second backwash water intaking valve 65 and backwash draining valve 66.
Filter course is arranged in housing, and filter course will be divided into upper shell 11 and lower house 12 in housing.
Concrete, the second backwash water intaking valve 65 can be connected with lower house 12 by the first backwash water intaking valve 64.And the second backwash water intaking valve 65 can be connected with described upper shell 11 by just washing water intaking valve 62.
Again as shown in Figure 1, filtration system also comprises collects water tank 7, is connected with backwashing pump 3, uses recycle-water be used to holding to clean.
The filtration system of the present embodiment can be to water inlet, and for example running water, well water, lake water or underground water, do pretreatment by more medium filter, and to remove suspension or the colloidal state impurity of water inlet, the absorption oil impurities, make clarification of water, reduces the SDI value.Filter course 10 media commonly used can be quartz sand, anthracite, manganese sand etc., are mainly used in former water treatment turbidity removal, the prime pretreatment of demineralized water, pretreated water etc., and delivery turbidity can reach below 3 degree.
The filter course of the present embodiment can be more medium filter, is filled and to be formed by the multilayer filtrate, and top layer is comprised of the material of the lightest and crude product level, and material the heaviest and the thinnest grade is placed on filter bottom.Filtration system is pressure type, and its principle is Dang Yuanshui from top to bottom during the filtrate by filter course, and in former water, suspension is retained down by the filtering layer surface due to absorption and mechanical choked flow effect; When former current enter in the middle of filter course, due to the sand grains in filter course arrange tightr, make particulate in water have more chance and sand grains to collide, in water, flocculation material, suspension and sand grain surface adhere to mutually, in water, impurity is trapped in filter course, thereby obtains clarifying the pretreated water of water quality.Pretreated water after filtering goes out aqueous suspension can be below 5 mg/litre.
Because use the filter course of more medium filter realization in actual use, after using some cycles, its filter material layer is held back and is adsorbed a certain amount of foreign material and spot, this descends the effluent quality of filter, the pressure differential of water inlet and outlet conduit increases, simultaneously, the flow of filter reduces, and affects the effluent characteristics of counter-infiltration pretreated water preparation facilities subsequent components such as reverse osmosis membrane.Therefore, can use former water or recycle-water to carry out forward and back flush, thereby make whole filtration system can realize continuously, work reliably.
Water intaking valve 60, outlet valve 61, just wash water intaking valve 62, just wash draining valve 63, the first backwash water intaking valve 64, the second backwash water intaking valve 65 and backwash draining valve 66 and be electric two-way valve or Pneumatic two-way valve.And by controller, for example master control programmable logic controller (PLC) (Programmable Logic Controller, PLC) is controlled.Need filter course from the needed compressed air of extraneous configuration driven Pneumatic two-way valve or nitrogen, still can draw an on/off (ON/OFF) electric signal to main control PLC, accept the control of main control PLC.
Concrete, as shown in table 1 by the logic control table of PLC.
Table 1
Former water is just being washed under state, and when the water intaking valve of frequent use broke down, former water also can and just washed water intaking valve by the second backwash water intaking valve and enter upper shell.This process can be used as and substitutes the standby control logic that former water is just being washed.
What beat √ is the opening valve, does not beat the expression closed condition valve of √.Also can be checked by main control PLC and arrange the duty of each valve or water pump, not close if there is closing, maybe should open and do not open, produce abnormal alarm signal prompt artificial treatment.
Concrete, the duty of filtration system is described as follows:
Can set the scavenging period of filter course, for example every 12 hours washing and filtering layers once.Also can utilize detector to detect, rinse when reaching detection threshold, and before and after rinsing, filtration system is in normal operation duty, produces pretreated water.
Concrete, at the inlet tube and outlet tube place of the filter course of filtration system, differential pressure pickup, more medium filter impurity severe obstruction are installed, pressure reduction increases, surpass the threshold pressure differential of setting, trigger and spread out of electric signal to main control PLC, thereby whether rinse operation by PLC controlled filter layer.The SDI instrumentation perhaps is installed in water side, and whether the water outlet that detects filter course meets the water inlet requirement of reverse osmosis module, arranges in main control PLC, is greater than threshold value (as SDI > 3), and the controlled filter system enters the flushing state from duty.
1, operation is filtered: open raw water pump, water intaking valve and outlet valve.Filter and by raw water pump, enter upper shell by water intaking valve with former water, pass through from top to bottom filter course, the mechanical filter that completes former water generates pretreated water and enters lower house, exports from delivery port 4 by outlet valve.
2, recycle-water back flush: in the filter course flushing process, most important recycle-water back flush, after rinsing and by backwashing pump, entering lower house from the first backwash water intaking valve of filter course bottom with recycle-water, pass through from the bottom up filter course inside, by filter course particularly the dirt held back of upper strata filtrate from the backwash draining valve on top, flow out by sewage draining exit, recover the filter capacity of filter course.Each backwash duration is generally 10--15 minute, can artificially set the recycle-water backwash duration.
3, the recycle-water forward rinses: the flushing process of filter course also needs forward to rinse, wash water is just washed water intaking valve suction upper shell by backwashing pump from filter course top, thereby enter filter course, pass through from top to bottom filter course inside, clean the filtrate of filter course, finally from the draining valve of just washing of bottom, discharge by the waste discharge mouth.Each recycle-water backwash duration is generally 5-10 minute, usually is shorter than the recycle-water backwash time, can set manually.
Because most recycle-water glassware for drinking water as dense as first-stage reverse osmosis has higher TDS value, water quality is less than former water, in the recycle-water backwash process, can cause the filtrate of filter course saturated because of the absorption salinity, reduce water quality, therefore between raw water pump and the first backwash water intaking valve, increase the second backwash water intaking valve newly, the use main control PLC is controlled, realization utilize the second road recycle-water to rinse water source the dense water of first-stage reverse osmosis is just washed if used, after backwash, realize that the positive and negative of the former water of the first via wash, thereby realize two-way water source bidirectional flushing.
4, former water back flush: main purpose is for being used the upper strata filtrate of former water back flush filtering layer, avoid because of recycle-water water quality not good, if reclaimed the filtrate salinity saturation problem of using the dense water of first-stage reverse osmosis to cause.Clean with former water and pass through the second backwash water intaking valve by raw water pump, then, by the first backwash water intaking valve, enter from the filter course bottom, pass through from the bottom up filter course inside, finally from backwash draining valve and the waste discharge mouth on top, go out.Each former water backwash duration generally is shorter than the time of recycle-water backwash, or artificial the setting.
5, former water is just washed: draining pump will clean with former water and enter upper shell by water intaking valve, by from the filter course upper strata, entering, pass through from top to bottom filter course inside, finally from bottom just wash draining valve and the waste discharge mouth is gone out.The each 3--10 minute of washing time, its objective is in flushing process, to filter course, bringing the impurity subpunch of secondary pollution to lavage possibly, then closes and just wash draining valve, opens outlet valve, for follow-up reverse osmosis module provides qualified former water.
In actual the use, by the PLC programming, but also two-way wash water positive and negative washing repeatedly alternately, repeatedly carry out, be particularly suitable for when filter course needs repairing, and using former water and just washing the final step as flushing.
Fig. 2 is the flow chart of the utility model filtration system processing method, as shown in the figure, comprises the steps:
This process is the recycle-water backwash process.
This process is that recycle-water is just being washed process.
This process is former water backwash process.
This process is that former water is just being washed process.
This process is the normal course of work.
On technique, the PLC program is set, carries out general every day of the flushing operation of 1--2 time by following 30 minutes processing steps:
Step 1: recycle-water backwash 15 minutes;
Step 2: recycle-water was just being washed 5 minutes;
Step 3: former water backwash 5 minutes;
Step 4: former water is just being washed 5 minutes (also can automatically control according to the SDI instrument of installing on outlet pipeline);
Step 5: normal operation.
By PLC, control and realize former water to the backwash of filter course and just rinsing, the water of recycling, the recycle-water that can be used as the second tunnel as the dense water of first-stage reverse osmosis that hangs down turbidity is implemented backwash and is just washing filter course.Arrange by PLC that logical recycle-water and Tong Yuanshui carry out backwash or time of just washing is adjustable, alternately repeatedly carry out, finally logical former water is just washing into whole flushing work, to make up the filtrate salinity saturation problem of using the recycle-water flushing to cause fully.
By by-pass valve control and pump are set in main control PLC, realize full-automatic unmanned operation on duty, each rinses the operating time of processing, and also can, by manually rule of thumb determining, be solidificated in PLC.As above routine technological process, can save and rinse former water consumption 66.7%, improves whole reverse osmose pure-water preparation facilities water-saving rate 10% left and right.
The professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present utility model.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random access memory (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
The above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present utility model; and be not used in and limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (6)
1. a filtration system, is characterized in that, described filtration system comprises:
Housing, have filter course in described housing, and described filter course will be divided into upper shell and lower house in described housing;
Raw water pump, backwashing pump, delivery port and waste discharge mouth;
Water intaking valve, described raw water pump is connected with described upper shell by described water intaking valve;
Outlet valve, described lower house is connected with described delivery port by described outlet valve;
Just washing water intaking valve, described backwashing pump is connected with described upper shell by the described water intaking valve of just washing;
Just washing draining valve, described lower house is connected with described waste discharge mouth by the described draining valve of just washing;
The first backwash water intaking valve, described backwashing pump is connected with described lower house by described the first backwash water intaking valve;
The second backwash water intaking valve, described raw water pump is connected with described lower house by described the second backwash water intaking valve;
The backwash draining valve, described upper shell is connected with described waste discharge mouth by described backwash draining valve.
2. filtration system according to claim 1, is characterized in that, described the second backwash water intaking valve is connected with described lower house by described the first backwash water intaking valve.
3. filtration system according to claim 1, is characterized in that, described the second backwash water intaking valve is connected with described upper shell by the described water intaking valve of just washing.
4. filtration system according to claim 1, is characterized in that, described filtration system also comprises the collection water tank, is connected with described backwashing pump.
5. filtration system according to claim 1, is characterized in that, described water intaking valve, outlet valve, just to wash water intaking valve, just wash draining valve, the first backwash water intaking valve, the second backwash water intaking valve and backwash draining valve be electric two-way valve.
6. filtration system according to claim 1, is characterized in that, described water intaking valve, outlet valve, just to wash water intaking valve, just wash draining valve, the first backwash water intaking valve, the second backwash water intaking valve and backwash draining valve be Pneumatic two-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202625893U CN203303704U (en) | 2013-05-14 | 2013-05-14 | Filter system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202625893U CN203303704U (en) | 2013-05-14 | 2013-05-14 | Filter system |
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| CN203303704U true CN203303704U (en) | 2013-11-27 |
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| CN2013202625893U Expired - Fee Related CN203303704U (en) | 2013-05-14 | 2013-05-14 | Filter system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272415A (en) * | 2013-05-14 | 2013-09-04 | 吴龙海 | Filtering system and filtering method |
| CN106693469A (en) * | 2015-07-24 | 2017-05-24 | 国统国际股份有限公司 | Slow filtration system |
-
2013
- 2013-05-14 CN CN2013202625893U patent/CN203303704U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272415A (en) * | 2013-05-14 | 2013-09-04 | 吴龙海 | Filtering system and filtering method |
| CN106693469A (en) * | 2015-07-24 | 2017-05-24 | 国统国际股份有限公司 | Slow filtration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20160514 |
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| CF01 | Termination of patent right due to non-payment of annual fee |