CN212954690U - High-speed circulating filter device for river purification - Google Patents
High-speed circulating filter device for river purification Download PDFInfo
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- CN212954690U CN212954690U CN202021323371.0U CN202021323371U CN212954690U CN 212954690 U CN212954690 U CN 212954690U CN 202021323371 U CN202021323371 U CN 202021323371U CN 212954690 U CN212954690 U CN 212954690U
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Abstract
The utility model discloses a high-speed circulating filter device for river purification, which comprises a raw water pump, a backwashing water pump, a static mixer, a high-speed filter, a dosing tank, a sewage disposal pool and a fan, wherein the high-speed filter is provided with a water inlet valve, a backwashing water drain valve, a sewage disposal valve, a backwashing air inlet valve, an exhaust valve, a check valve and a water outlet valve for discharging filtered water, and the backwashing air inlet valve is connected with the check valve in series; the raw water pump and the backwashing water pump are connected to the downstream of a river channel, the raw water pump and the static mixer are connected with a water inlet valve, the backwashing water pump is connected with a backwashing water inlet valve, the fan is respectively connected with a backwashing air inlet valve and an oxygen increasing valve, and the oxygen increasing valve is connected between the fan and a water production pipe; and the backwashing drain valve, the blowdown valve and the exhaust valve are connected with the blowdown tank. The utility model discloses the river course that obtains purifies uses high-speed circulating filter device, purifying effect is good, and the operation is stable, collects flocculation, filtration, disinfection, aeration reoxygenation in an organic whole, and area is little, the cost is low.
Description
Technical Field
The utility model relates to a water purification unit, especially a high-speed circulating filter device is used in river course purification.
Background
The main possible contaminants of the river water are oxygen consuming contaminants, phytonutrients, toxic contaminants, inorganic contaminants, pathogen contaminants, etc.
The main sources of river pollutants are: industrial waste water; domestic sewage; the shoreside garbage leachate; surface rainwater runoff; settling atmospheric suspended matters and other pollutants; endogenous pollution (dissolution of bottom mud pollutants of rivers and excessive propagation of algae); artificially discarded garbage and sundries; plant metabolic residues. The unabsorbed part of a large amount of pesticides and fertilizers applied to agriculture is leached by rainwater, seeps downwards, flows off or floats into the atmosphere and enters surface water. The sewage from feedlots, slaughterhouses and medical and health institutions contains various pathogens such as schistosomiasis, dysentery, viral hepatitis, pneumonia bacteria, etc., in addition to general pollutants.
The serious and frequent pollution and the lack of necessary circulation of the water body, too low dissolved oxygen, the lack of living environment of aquatic animals and plants and the gradual loss of self-cleaning capability of the water body; the river sediment is not clear for a long time, so that the sediment continuously releases N, P and other nutrient salts, thereby causing water eutrophication, gradual greening of the water, excessive growth of algae, generation of peculiar smell and blackening and smelling of partial river reach.
The current prevention and treatment technical measures are as follows:
at present, external measures for river pollution treatment are as follows: pollution source control (sewage interception and storage pipe), bank ecological zone construction, bottom mud improvement, aeration reoxygenation, microorganism strain feeding, aquatic animal and plant purification, purification equipment and the like.
Pollution source control (catch-off trap): governments in various places are vigorously promoted in recent years, the effect is good for newly built urban areas and industrial areas, but the problem can exist for old communities, narrow street zones and underdeveloped economic areas.
Aeration reoxygenation, bank ecological zone construction and aquatic animal and plant purification belong to sustainable development measures, can play a good role in water ecological protection and restoration, and need long-term maintenance and management to gradually play a role.
The microbial strain is an effective and fast-acting method, but the costs of culture, addition, maintenance and the like of the strain are higher.
The purification equipment mainly comprises air floatation and filtration. The occupied area is small, but the number of moving parts of the air floatation is large, the effect is easily influenced by various factors, and meanwhile, the outward transportation and disposal cost of the scum is high. The filtration has great difference in effect and occupied area according to different filter media.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing a river channel purification high-speed circulating filter device which occupies small area, has low cost and good purification effect.
In order to realize the purpose, the utility model discloses a high-speed circulating filter device is used in river course purification, it includes raw water pump, backwash water pump, static mixer, high-speed filter, has dosing tank, blowdown pond and the fan that adds the medicine pump, be equipped with water intaking valve F1, backwash water intaking valve F3, backwash drain valve F4, blowdown valve F5, backwash admission valve F6, discharge valve F7, check valve F13 and be used for discharging the outlet valve F2 who is filtered the water purification on the high-speed filter, outlet valve F2 is connected with the product water pipe, the product water pipe can communicate with river course upper reaches or clean water basin, backwash admission valve F6 and check valve F13 establish ties; the raw water pump and the backwashing water pump are connected to the downstream of a river channel, wherein the raw water pump and the static mixer are connected with a water inlet valve F1, and a raw water check valve F12 is arranged between the raw water pump and the static mixer; the backwashing water pump is connected with a backwashing water inlet valve F3, and a backwashing check valve F11 is arranged between the backwashing water pump and the backwashing water inlet valve F3; the fan is respectively connected with a backwashing air inlet valve F6 and an oxygen increasing valve F14, and the oxygen increasing valve F14 is connected between the fan and the water production pipe; the backwashing water discharge valve F4, the blowdown valve F5 and the exhaust valve F7 are connected with the blowdown tank; and a dosing pump of the dosing tank is connected with the static mixer, and a water replenishing valve and an air replenishing valve are arranged on the dosing tank.
In order to cope with different types of pollution, two dosing boxes can be arranged.
In order to accurately control the operation of the valves, the water inlet valve F1, the water outlet valve F2, the backwashing water inlet valve F3, the backwashing water discharge valve F4, the sewage discharge valve F5, the backwashing air inlet valve F6, the air outlet valve F7 and the oxygen increasing valve F14 are all pneumatic valves.
In order to oxygenate and purify the sewage disposal pool, the fan is connected with the sewage disposal pool, and an electric valve F19 is arranged between the fan and the sewage disposal pool.
In order to accurately control the flow rate and ensure safety and reliability, a flow meter is arranged between the raw water pump and the water inlet valve F1, a regulating valve F8 is connected in series between the water outlet valve F2 and the high-speed filter, a regulating valve F9 is connected in series between the backwashing water inlet valve F3 and the high-speed filter, and a regulating valve F10 is connected in series between the sewage discharge valve F5 and the high-speed filter.
The utility model discloses the river course that obtains purifies uses high-speed circulating filter device possesses following advantage:
1. the purification effect is good, the operation is stable, after the black and odorous river water is treated by the device, the effluent is clear and transparent, the turbidity can reach below 3NTU, the pollutant carrying capacity of the filter bed is large, and the continuous and stable operation can be realized;
2. the flocculation, filtration, disinfection and aeration reoxygenation are integrated into a whole, so that the quick treatment, the emergency treatment and the long-acting treatment are integrated, and turbidity removal, suspended matter removal, algae removal, disinfection and virus removal can be realized only by changing the types of medicaments, and the switching can be performed at any time;
3. the occupied area is small, the treatment capacity is 1000 tons/day, and the occupied area of the whole device only needs about 15 square meters;
4. under the condition of satisfying all functions, the cost is equivalent to that of a flocculation precipitation, air flotation or other filtering devices, and the cost can be saved by 1/3 to 1/2.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment 1 of the high-speed circulating filter device for river purification of the present invention;
FIG. 2 is a flow chart of the liquid rising prewash stage in practical use of example 1;
FIG. 3 is a flow chart of filtration oxygenation in actual use according to example 1;
FIG. 4 is a flow chart of a gas-water mixed rinsing stage in the backwashing in example 1;
fig. 5 is a schematic structural diagram of embodiment 2 of the high-speed circulating and filtering device for river purification of the present invention.
In the figure: the system comprises a raw water pump 1, a backwashing water pump 2, a static mixer 3, a high-speed filter 4, a dosing tank 5, a sewage disposal pool 6, a fan 7, a water production pipe 8, a flowmeter 9, a water replenishing valve 50, an air replenishing valve 51, a first dosing tank 501 and a second dosing tank 502.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1:
the high-speed circulating filter device for river purification described in this embodiment, as shown in fig. 1, includes a raw water pump 1, a backwash water pump 2, a static mixer 3, a high-speed filter 4, a dosing tank 5 with a dosing pump, a sewage disposal tank 6, and a blower 7, where the high-speed filter 4 is provided with a water inlet valve F1, a backwash water inlet valve F3, a backwash water discharge valve F4, a sewage disposal valve F5, a backwash air inlet valve F6, an air outlet valve F7, a check valve F13, and a water outlet valve F2 for discharging filtered purified water, the water outlet valve F2 is connected to a water production pipe 8, the water production pipe 8 is communicated with the upstream of a river, and the backwash air inlet valve F6 is connected in series with; the raw water pump 1 and the backwashing water pump 2 are connected to the downstream of a river channel, wherein the raw water pump 1 and the static mixer 3 are connected with a water inlet valve F1, and a raw water check valve F12 is arranged between the raw water pump 1 and the static mixer 3; the backwashing water pump 2 is connected with a backwashing water inlet valve F3, and a backwashing check valve F11 is arranged between the backwashing water pump 2 and the backwashing water inlet valve F3; the fan 7 is respectively connected with a backwashing air inlet valve F6 and an oxygen increasing valve F14, and the oxygen increasing valve F14 is connected between the fan 7 and the water production pipe 8; the backwashing water discharge valve F4, the blowdown valve F5 and the exhaust valve F7 are connected with the blowdown tank 6; the dosing pump of the dosing tank 5 is connected with the static mixer 3, and the dosing tank 5 is provided with a water replenishing valve 50 and an air replenishing valve 51.
In this embodiment, a grid is arranged between the river channel and the raw water pump 1.
In this embodiment, the water replenishing valve 50 is connected to the water production pipe 8, so that part of the purified water flows into the dosing tank 5 to be recycled.
In the actual working process, the high-speed circulating filter device for purifying the river channel mainly comprises two working modes of filtering and backwashing, wherein the filtering mode comprises two stages of liquid rising prewashing and filtering;
in the liquid rising stage, as shown in fig. 2, the raw water pump 1 needs to be started, the water inlet valve F1 and the exhaust valve F7 are opened, the raw water pump 1 pumps water from the river channel, the high-speed filter 4 is filled with water through the static mixer 3, when water overflows from the exhaust valve F7, the overflowed water flows into the sewage disposal pool 6, the exhaust valve F7 is closed at the moment, the sewage disposal valve 5 is opened, the liquid filled into the high-speed filter 4 at the moment is discharged into the sewage disposal pool 6, and the liquid rising pre-washing stage is carried out for 3-5 minutes and can be set automatically;
closing the drain valve F5, opening the water outlet valve F2 and starting the dosing pump, wherein the device enters a filtering stage, raw water in the river channel passes through the raw water pump 1 and the raw water check valve F12, is mixed with the medicament pumped by the dosing pump in the static mixer 3, enters the high-speed filter 4 through the water inlet valve F1, the high-speed filter 4 intercepts, adsorbs and filters the raw water medicament mixed liquid and then discharges purified water, and the purified water flows out of the water outlet valve F2 and flows to the upstream of the river channel along the water production pipe 8; at this time, the oxygenation valve F14 can be opened, and oxygen can be introduced into the purified water in the water production pipe 8 through the fan 7, as shown in fig. 3;
in this embodiment, the chemical in the dosing box 5 may be PAC, PFS, or other flocculant, and is mainly used for removing turbidity, suspended matter, colloid, insoluble organic matter, phosphorus, etc., or may be lime, sodium hypochlorite, bleaching powder, ammonia nitrogen removing chemical or COD removing chemical, and is mainly used for removing algae, disinfection, COD or ammonia nitrogen;
when the difference value between the water inlet pressure PG1 at one side of the water inlet valve F1 and the water outlet pressure PG2 at one side of the water outlet valve F2 exceeds a value set by a user or the reading of a pressure gauge of an electrical contact point on the high-speed filter 4 is larger than a set value, the device of the embodiment enters the backwashing mode, and the backwashing mode mainly comprises four stages of water backwashing, liquid and gas backwashing, gas-water mixed flushing and water backwashing;
in the water backwashing stage, the water inlet valve F1, the water outlet valve F2, the raw water pump 1 and the dosing pump of the dosing tank 5 are closed, the backwashing water pump 2, the backwashing check valve F11, the backwashing water inlet valve F3 and the backwashing water discharge valve F4 are opened, at the moment, the backwashing water pump 2 takes water from the river channel, enters the high-speed filter 4 from the backwashing check valve F11 and the backwashing water inlet valve F3, performs backwashing on the high-speed filter 4, and discharges the water into the sewage disposal pool 6 from the backwashing water discharge valve F4;
after the water backflushing stage is carried out for 2-3 minutes, in order to further make the sludge fall off from the high-speed filter 4, a liquid descending and gas backflushing mode is adopted, at the moment, the backflushing water pump 2, the backflushing water inlet valve F3 and the backflushing water discharge valve F4 are closed, the exhaust valve F7 and the blow-down valve F5 are opened, so that the liquid level in the high-speed filter 4 is reduced, in the embodiment, the liquid level is reduced to about 500mm below the top of the filter through the observation of a pipeline sight glass on the high-speed filter 4, and the process lasts for about 3-; at the moment, the exhaust valve F7 and the blow-down valve F5 are closed, and the fan 7, the backwashing air inlet valve F6, the check valve F13 and the backwashing water discharge valve F4 are opened, so that the fan 7 blows air into the high-speed filter 4 for 3 minutes;
opening the backwash water pump 2 and the backwash water inlet valve F3, namely entering a mixed vapor-water flushing stage, as shown in figure 4, wherein the stage is generally not more than 1 minute; and finally, closing the fan 7 and the backwashing air inlet valve, entering a water backwashing stage, and continuing for 3 minutes to finish backwashing of the high-speed filter 4.
In normal use, the back flushing mode is started only when the pressure difference between inlet water and outlet water reaches a certain value, and the high-speed filter 4 is normally flushed once every 12 to 24 hours in a valve control mode of an air back flushing stage, wherein each time lasts for about 4 minutes.
The high-speed circulating filter device for river purification that this embodiment provided, area is little, the cost is low, handles fast, and connects river course upper and lower reaches, possesses the hydraulic circulation function.
Example 2:
as shown in fig. 5, the high-speed circulation filtration apparatus for purifying a river according to the present embodiment is provided with two dosing tanks, namely, a first dosing tank 501 and a second dosing tank 502, in order to cope with different types of pollution, in addition to the features described in embodiment 1.
In order to accurately control the operation of the valves, the water inlet valve F1, the water outlet valve F2, the backwashing water inlet valve F3, the backwashing water discharge valve F4, the sewage discharge valve F5, the backwashing air inlet valve F6, the air outlet valve F7 and the oxygen increasing valve F14 are all pneumatic valves.
In order to oxygenate and purify the sewage disposal pool, the fan 7 is connected with the sewage disposal pool 6, and an electromagnetic valve F19 is arranged between the fan 7 and the sewage disposal pool 6.
In order to accurately control the flow rate and ensure safety and reliability, a flow meter 9 is arranged between the raw water pump 1 and the water inlet valve F1, a regulating valve F8 is connected in series between the water outlet valve F2 and the high-speed filter 4, a regulating valve F9 is connected in series between the backwashing water inlet valve F3 and the high-speed filter 4, and a regulating valve F10 is connected in series between the sewage valve F5 and the high-speed filter 4.
In this embodiment, as shown in fig. 5, a water replenishing valve F15 and an air mixing valve F17 are provided on the first dosing tank 501, and a water replenishing valve F16 and an air mixing valve F18 are provided on the second dosing tank 502; the agent in the first dosing tank 501 is mainly used for removing turbidity, suspended matters, colloid, insoluble organic matters, phosphorus and the like, and can be PAC, PFS or other flocculating agents; the chemical agents in the second dosing tank 502 are mainly used for removing algae, disinfection, COD or ammonia nitrogen, and can be lime, sodium hypochlorite, bleaching powder, ammonia nitrogen removing chemical agents or COD removing chemical agents.
In the actual working process, the regulating valve F8, the regulating valve F9 and the regulating valve F10 are respectively opened and closed with the water outlet valve F2, the backwashing water inlet valve F3 and the sewage valve F5 which are respectively connected with the regulating valve F8, the regulating valve F9 and the regulating valve F10 in series, and the flow in the pipe in the filtering and backwashing stages can be controlled by regulating the opening and closing degrees of the regulating valve F8, the regulating valve F9 and the regulating valve F10.
The high-speed circulating filter device for river course purification that this embodiment provided adopts the pneumatic valve, has improved the switching efficiency of device to realize the automatic control of device, simultaneously through setting up the governing valve, make the device can deal with different flow river channel demands, practiced thrift the energy and work efficiency.
Claims (7)
1. A high-speed circulating filter device for river purification comprises a raw water pump, a backwashing water pump, a static mixer, a high-speed filter, a dosing tank with a dosing pump, a sewage disposal pool and a fan, and is characterized in that the high-speed filter is provided with a water inlet valve F1, a backwashing water inlet valve F3, a backwashing water discharge valve F4, a sewage disposal valve F5, a backwashing air inlet valve F6, an exhaust valve F7, a check valve F13 and a water outlet valve F2 for discharging filtered pure water, the water outlet valve F2 is connected with a water production pipe, and the backwashing air inlet valve F6 is connected with the check valve F13 in series; the raw water pump and the backwashing water pump are connected to the downstream of a river channel, wherein the raw water pump and the static mixer are connected with a water inlet valve F1, and a raw water check valve F12 is arranged between the raw water pump and the static mixer; the backwashing water pump is connected with a backwashing water inlet valve F3, and a backwashing check valve F11 is arranged between the backwashing water pump and the backwashing water inlet valve F3; the fan is respectively connected with a backwashing air inlet valve F6 and an oxygen increasing valve F14, and the oxygen increasing valve F14 is connected between the fan and the water production pipe; the backwashing water discharge valve F4, the blowdown valve F5 and the exhaust valve F7 are connected with the blowdown tank; and a dosing pump of the dosing tank is connected with the static mixer, and a water replenishing valve and an air replenishing valve are arranged on the dosing tank.
2. The high-speed circulation filtration apparatus for river purification according to claim 1, wherein the number of the dosing tanks is two.
3. The high-speed circulating filter device for river course purification according to claim 1 or 2, wherein the water inlet valve F1, the water outlet valve F2, the backwash water inlet valve F3, the backwash water discharge valve F4, the blowdown valve F5, the backwash air inlet valve F6, the air outlet valve F7 and the oxygen increasing valve F14 are all pneumatic valves.
4. The high-speed circulating filter device for river course purification according to claim 1 or 2, wherein the fan is connected with the sewage disposal basin, and an electromagnetic valve F19 is arranged between the fan and the sewage disposal basin.
5. The high-speed circulating filter device for river course purification according to claim 3, wherein the fan is connected with the sewage tank, and a solenoid valve F19 is arranged between the fan and the sewage tank.
6. The high-speed circulating filter device for river course purification according to claim 1 or 2, wherein a flow meter is arranged between the raw water pump and the water inlet valve F1, a regulating valve F8 is connected in series between the water outlet valve F2 and the high-speed filter, a regulating valve F9 is connected in series between the backwashing water inlet valve F3 and the high-speed filter, and a regulating valve F10 is connected in series between the sewage valve F5 and the high-speed filter.
7. The high-speed circulating filter device for river course purification according to claim 5, wherein a flow meter is arranged between the raw water pump and the water inlet valve F1, a regulating valve F8 is connected in series between the water outlet valve F2 and the high-speed filter, a regulating valve F9 is connected in series between the backwashing water inlet valve F3 and the high-speed filter, and a regulating valve F10 is connected in series between the sewage valve F5 and the high-speed filter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021323371.0U CN212954690U (en) | 2020-07-08 | 2020-07-08 | High-speed circulating filter device for river purification |
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| CN202021323371.0U CN212954690U (en) | 2020-07-08 | 2020-07-08 | High-speed circulating filter device for river purification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368818A (en) * | 2022-01-21 | 2022-04-19 | 江苏天楹环保能源成套设备有限公司 | Preparation system and preparation method of circulating cooling water make-up water of power plant |
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2020
- 2020-07-08 CN CN202021323371.0U patent/CN212954690U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114368818A (en) * | 2022-01-21 | 2022-04-19 | 江苏天楹环保能源成套设备有限公司 | Preparation system and preparation method of circulating cooling water make-up water of power plant |
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