CN107285522A - Air-water back-flushing pressure type constant-speed contact filter and back-flushing method thereof - Google Patents
Air-water back-flushing pressure type constant-speed contact filter and back-flushing method thereof Download PDFInfo
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- CN107285522A CN107285522A CN201710650520.0A CN201710650520A CN107285522A CN 107285522 A CN107285522 A CN 107285522A CN 201710650520 A CN201710650520 A CN 201710650520A CN 107285522 A CN107285522 A CN 107285522A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 221
- 238000011010 flushing procedure Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000011001 backwashing Methods 0.000 claims abstract description 49
- 238000001914 filtration Methods 0.000 claims abstract description 35
- 238000005406 washing Methods 0.000 claims abstract description 6
- 239000000706 filtrate Substances 0.000 claims description 17
- 238000010079 rubber tapping Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 10
- 239000002131 composite material Substances 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000004080 punching Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 239000002351 wastewater Substances 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 5
- 238000005189 flocculation Methods 0.000 claims description 5
- 230000016615 flocculation Effects 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 3
- 230000036541 health Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000003860 storage Methods 0.000 description 6
- 239000000645 desinfectant Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Filtration Of Liquid (AREA)
Abstract
An air-water back-flushing pressure type constant-speed contact filter and a back-flushing method thereof solve the problems that the existing filter only depends on water back-flushing during variable-speed filtration and back-flushing, the back-flushing effect is poor, and the water quality is difficult to reach the national standard. The method is characterized in that: a water outlet pipe of the filter is provided with a water head loss regulator and an initial filtered water discharging device, the lower part of the filter body is provided with an air inlet, and the middle part of the filter body is provided with a water outlet; the filter flushing system adopts a gas-water combined backwashing mode and comprises a compressed air supply device, a water backwashing device and a backwashing water discharge device; the compressed air supply device is connected with the air inlet, the water backwashing device is connected with the water outlet pipe, and the backwashing water discharge device is connected with the water outlet. Its advantage lies in that the filter realizes that the air water jointly washes, and washing effect is good, and the filter realizes the constant speed and filters, and the primary water filter obtains discharging, and quality of water is more guaranteed, accords with the national standard requirement, realizes automatic operation through automatically controlled cabinet simultaneously, practices thrift the cost of labor.
Description
Technical field
The present invention relates to a kind of water service equipment, specifically related to a kind of air water back washing pressure type constant speed contact filtration device
And its back-flushing method.
Background technology
China is vast in territory, and development level differs, and the fill rat of cleaning running water can not far meet the requirement of its people, especially
It is being located in outlying rural area, industrial and mineral, school, island, army, it is extremely difficult with water.The characteristics of these are regional be：Place disperses,
Though population is more, the population that yards up is few, raw water often from reservoir or streams, water level is high, and water quality is good, the shortage of capital and management
Personnel, according to conventional water factory's technique and water supply pattern, construction costs is high, management requires height, water producing cost height, engineering are difficult to
Horse, quite a lot of resident directly drinks the raw water without any processing, and some areas are only through simple processing, such as filtering or place of settling
Reason, pressure type contacts filter is also a kind of mode therein.
There is problems with existing pressure type contacts filter：
1st, the speed that current pass through filtrate is change, and when intake pressure is constant, during beginning, because filtrate is relatively cleaned, resistance is small, water
Flow velocity degree is fast, as impurity is progressively accumulated in filtrate, and the rate of filtration is just slack-off, so water, water quality are difficult to ensure that.
2nd, backwash only has water backwashing, and developing result is bad, causes water quality to be unable to reach national standard requirement；
3rd, backwash is manually operated mostly, and labor intensity is big, and developing result is poor, and cost is high；
4th, artificial flushing, backwash rate hardly possible control, cause filterins media run-off serious, filter capacity reduction, water degradation.
5th, there is no initial filter water tapping equipment, water quality is difficult to be up to state standards.
The content of the invention
In order to overcome the shortcomings of background technology, the present invention provides a kind of air water back washing pressure type constant speed contact filtration device, adopted
Combined with air water and recoiled, backwash effect is good, and be provided with loss of flood peak adjuster, constant speed filter is realized, there is provided initial filter water
Tapping equipment, initial filter water is discharged, and water quality is guaranteed, and is automatically controlled by electrical control cubicles, realizes automated job, saves artificial
Cost, backwash rate is controllable, adjustable, and filtrate is not easily runed off, and water quality is more guaranteed.
The technical solution adopted in the present invention：A kind of air water back washing pressure type constant speed contact filtration device, including filter master
From top to bottom include flocculation zone, filtering area, gathering ground inside body, backwashing system, electrical control cubicles, the filter body successively,
The filter body top is provided with water inlet, and bottom is provided with delivery port, and the water inlet connects water inlet pipe, and the delivery port connects
Connected water outlet pipe；The filter body bottom is provided with air inlet, and middle part is provided with discharge outlet；The backwashing system is joined using air water
The backwash mode of conjunction, including compressed air supply system, water backwashing device, back-flushing tapping equipment；The compressed air
Feeding mechanism connects air inlet, and the water backwashing device connects outlet pipe, and the back-flushing tapping equipment connects discharge outlet.
The filter body top is provided with to be connected with blast pipe, the blast pipe on exhaust outlet, the exhaust outlet and set
Having can be vented and the composite exhaust valve of energy tonifying Qi.
It is also associated with ensureing the mixing wastewater with air liquid delivery pipe of health on the blast pipe.
The compressed air supply system includes air compressor, compressed air hose, compressed air hose one end connection
Air compressor, other end connection air inlet, the compressed air hose is provided with the air mass flow for being used to adjust air blasting intensity and adjusted
Save the mass air flow sensor of device and monitoring compressed air require；The air compressor uses oil free screw air compressor machine, compressed air
Filtered through air cleaner.
The water backwashing device includes the backwash water pipe connected with outlet pipe, and the backwash water pipe, which is provided with, to be used for
The backwash flowmeter of monitoring recoil water-carrying capacity and the recoil water flow regulator for adjusting back washing strength.
The filter body bottom is provided with the second pressure transmitter for being used for monitoring the loss of flood peak.
The outlet pipe is provided with loss of flood peak adjuster and the 3rd pressure transmitter, real together with second pressure transmitter
Existing constant speed filter.
The electrical control cubicles provide the ups power of electric power equipped with energy short time when having a power failure.
The outlet pipe is provided with clear water transmissometer, and bifurcated is connected to initial filter water tapping equipment, the initial filter water discharge dress
Put including initial filter water discharge spout and the 3rd motor-driven valve, have the function of discharge initial filter water and filter body blowdown emptying concurrently.
A kind of back-flushing method of air water back washing pressure type constant speed contact filtration device, its work comprises the following steps：
1）First carried out gas during flushing, close flow of inlet water adjuster and loss of flood peak adjuster by electrical control cubicles before gas punching, stop
Only water inlet water inlet tube and outlet pipe water outlet, while opening in the second motor-driven valve reduction filter body at water level to discharge outlet；
2）Air compressor is opened, and opens the first motor-driven valve, compressed air is to enter air accumulator, when the inspection of first pressure transmitter
Measure air accumulator compressed air pressure it is enough when, open air regulator, after being filtered through air cleaner without oil pressure
Contracting air is then carried out gas by mass air flow sensor, check-valves into gas-distribution pipe；
3）Gas is rushed to setting time, and the clear water warp that electrical control cubicles are then opened in recoil water flow regulator, head-tank 1101 is anti-
Wash tub pipe and outlet pipe, and backwashed after back-flushing spoiler energy dissipating by filter into filtrate；
4）After the mixed punching of air water is to setting time, electrical control cubicles will turn off air regulator, the first motor-driven valve, air pressure
Contracting machine, while the aperture for increasing recoil water flow regulator starts washing to setting value；
5）When being washed to setting time, recoil water flow regulator and the second motor-driven valve, the backwash of filter body are closed
Terminate, open flow of inlet water adjuster and loss of flood peak adjuster, system recovers water inlet and water purification operating mode.
The filter body top is provided with to be connected with blast pipe, the blast pipe on exhaust outlet, the exhaust outlet and set
There is composite exhaust valve, the composite exhaust valve is used for exhaust, tonifying Qi automatically, maintains pressure type contacts filter in normal pressure shape
State.
The beneficial effects of the invention are as follows：Using above scheme, combined by compressed air supply system, water backwashing device
Filtrate inside filter body is realized air water joint flushing, developing result more preferably, and be provided with loss of flood peak adjuster and
Initial filter water tapping equipment, the head filtration such as realizes, and initial filter water is discharged, water quality more preferably, meets national standard, led to simultaneously
Cross electrical control cubicles to automatically control, realize automated job, save cost of labor, backwash rate is controllable, adjustable, and filtrate is not easily runed off,
Water quality is more guaranteed.
Brief description of the drawings
Fig. 1 is the structural representation of air water back washing pressure type constant speed contact filtration device of the embodiment of the present invention.
1- filter bodies in figure, 101- water inlets, 102- delivery ports, 103- air inlets, 104- discharge outlet, 105- rows
Gas port, 106- blast pipes, 107- composite exhaust valves, 108- mixing wastewater with air liquid delivery pipes, 109- second pressure transmitters, 110-
Second hand-operated valve, the hand-operated valves of 111- the 3rd, 112- filter plates, 113- filters, 114- charging holes, 115- manholes, 116- water inlet choked flows
Plate, 117- back-flushing spoilers, 118- filtrates, 2- backwashing systems, 201- air compressors, 202- compressed air hoses, 203-
First motor-driven valve, 204- air accumulators, 205- air cleaners, 206- mass air flow sensor, 207- air regulators, 208- stops
Valve is returned, 209- first manual valves, 210- first pressure transmitters, 211- backwash water pipes, 212- recoil water ga(u)ges, 213- is anti-
Bath flow regulator, 214- recoil water discharge spouts, 215- back-flushing collector pipes, the motor-driven valves of 216- second, 217- gas-distribution pipes, 3-
Electrical control cubicles, 4- water inlet pipes, 5- outlet pipes, 6- flow of inlet water adjusters, 7- feed water flow gauge, 8- disinfectant diffusers, 9- is static
Blender, 10- initial filter water tapping equipments, 1001- initial filter water discharge spouts, 1002 the 3rd motor-driven valves, 11- water storage devices, 1101- is high
Position pond, 1102- user's feed pipe, the hand-operated valves of 1103- the 4th, the hand-operated valves of 1104- the 5th, 1105- fluid level transmitters, 1106-
Overflow pipe, 1107- Waste drainage valve for emptying container, 12- clear water transmissometers, 13- loss of flood peak adjusters, the pressure transmitters of 14- the 3rd.
Embodiment
Embodiments of the present invention is further illustrated below in conjunction with the accompanying drawings：
As illustrated, a kind of air water back washing pressure type constant speed contact filtration device, including filter body 1, backwashing system 2, electricity
Control cabinet 3, water inlet pipe 4, outlet pipe 5, flow of inlet water adjuster 6, feed water flow gauge 7, disinfectant diffuser 8, static mixer 9,
Initial filter water tapping equipment 10, water storage device 11, clear water transmissometer 12, loss of flood peak adjuster 13, the 3rd pressure transmitter 14.
From top to bottom include flocculation zone, filtering area, gathering ground, the filter master inside the filter body 1 successively
The top of body 1 is provided with water inlet 101, and bottom is provided with delivery port 102, and the water inlet 101 connects water inlet pipe 4, the delivery port 102
Connect outlet pipe 5；The bottom of filter body 1 is provided with air inlet 103, and middle part is provided with discharge outlet 104；The backwashing system
2 use the united backwash mode of air water, including compressed air supply system, water backwashing device, back-flushing tapping equipment；Institute
Compressed air supply system connection air inlet 103 is stated, the water backwashing device connects outlet pipe 5, the back-flushing discharge dress
Put connection discharge outlet 104, with it is existing rely solely on water backwashing mode compared with, add compressed air rinsing mode, further
Developing result is improved, effluent characteristics are substantially increased.
The feed water flow gauge 7 is used to monitor flow of inlet water, and the disinfectant diffuser 8 and static mixer 9 are used respectively
In adding disinfectant and flocculation agent, the clear water transmissometer 12 is used to monitor filter delivery turbidity.
The loss of flood peak adjuster 13 is used for the loss of flood peak for adjusting whole system, is worked initial stage, filtrate in filter
118 relatively clean, thus the loss of flood peak is small, and the aperture of loss of flood peak adjuster 12 is small, as filtration time extends, product in filtrate 118
Tired impurity is more and more, and loss of flood peak increase, the aperture of loss of flood peak adjuster 13 increase, the maintenance system loss of flood peak is constant,
So as to realizing constant speed filter, it is ensured that water quality.
3rd pressure transmitter 14 is used to monitoring the pressure of the back segment outlet pipe 5 of loss of flood peak adjuster 13, and by number
According to electrical control cubicles 3 are transmitted to, pressed according to default system loss of flood peak value and the second pressure transmitter monitored at any time 109 and second
The numerical value of power transmitter 14, adjusts the aperture of loss of flood peak adjuster 13 at any time, maintains the system loss of flood peak constant, so as to realizing
Constant speed filter.
As illustrated, the compressed air supply system includes air compressor 201, compressed air hose 202, the compression
The one end of air hose 202 connects air compressor 201, and other end connection air inlet 203, the compressed air hose 202 is empty along compression
Gas conveying direction is sequentially provided with the first motor-driven valve 203, air accumulator 204, air cleaner 205, mass air flow sensor 206, air stream
Adjuster 207, check-valves 208, first manual valve 209 are measured, the air accumulator 204 is provided with first pressure transmitter 210.
First motor-driven valve 203 is used for the opening and closing of compressed air hose 202；Air accumulator 204, which is used to store, to be compressed
Air, makes gas backwash uniformly carry out；Air cleaner 205 can be filtered to the compressed air of entrance, it is ensured that water quality is pacified
Entirely；The mass air flow sensor 206 is used to monitor air mass flow；Air regulator 207 can be not only used for the logical of backwash gas
It is disconnected, regulation air blasting intensity is can be used for again, it is ensured that backwash effect；Check-valves 208 can prevent the pressure in pressure type contacts filter
Power water blows back into compressed air supply system along compressed air hose 202, it is to avoid occur accident；First manual valve 209 is used to compress
Break-make during air system overhaul of the equipments；First pressure transmitter 210 is used to monitor gas pressure in air accumulator 204, it is ensured that compression
The stable supply of air supply device and safety.
Further, the air compressor 201 uses oil free screw air compressor machine, and compressed air is through air cleaner 205
Filtering, further ensures that water quality safety.
Further, provided with the gas-distribution pipe 217 connected with compressed air hose 202 in filter body 1, it is ensured that gas bleed
It is more uniform.
As illustrated, the water backwashing device includes the backwash water pipe 211 connected with outlet pipe 5, the backwash
Water pipe 211 is provided with recoil water ga(u)ge 212, recoil water flow regulator 213, during water backwashing, and the water in water storage device leads to
Cross backwash water pipe 211 and realize backflow, backwashed, wherein, recoil water ga(u)ge 213 is used to monitor recoil water-carrying capacity, instead
Bath flow regulator 213 can be not only used for back-flushing break-make, it can also be used to regulation recoil water-carrying capacity, it is ensured that backwash effect.
As illustrated, the back-flushing tapping equipment includes recoil water discharge spout 214, back-flushing collector pipe 215, it is described anti-
The one end of flush water discharge pipe 214 connects discharge outlet 104, and the other end sets the second motor-driven valve 216, and the back-flushing collector pipe 215 is set
Put in filter body 1 and be connected with discharge outlet 104, back-flushing collector pipe 215 makes uniform, further raising backwash of catchmenting
Effect.
Terminate in Filter Back Washing, recover the initial stage of water purification operating mode, its delivery turbidity does not often reach national standard.Such as
Shown in figure, the outlet pipe 5 is provided with clear water transmissometer 12, and bifurcated is connected to initial filter water tapping equipment, the clear water transmissometer
12 turbidity for monitoring the water after filter of filter body 1, the initial filter water tapping equipment includes initial filter water discharge spout 1001
With the 3rd motor-driven valve 1002, for discharging initial filter water, and the emptying and blowdown of the filter body 1 can be used to.When clear water is turbid
Degree instrument is when monitoring that initial filter water turbidity does not meet water standard, and the 3rd motor-driven valve is automatically turned on, and initial filter water is discharged, when going out
When water turbidity is up to standard, the 3rd motor-driven valve is automatic closing, and clear water enters head-tank and supplies user.
As illustrated, the top of filter body 1, which is provided with exhaust outlet 105, the exhaust outlet 105, is connected with blast pipe
106, the blast pipe 106 is provided with composite exhaust valve 107, and the composite exhaust valve 107 can be vented and energy tonifying Qi,
So that will not both form excess pressure inside filter body 1, negative pressure will not be also formed, it is ensured that the internal pressure of filter body 1
Balance, it is ensured that safety.
Further, mixing wastewater with air liquid delivery pipe 108 is also associated with the blast pipe 106, filter body 1 is in operation
During often produce muddiness mixing wastewater with air liquid, if being discharged by composite exhaust valve 107, filter body can be caused
1 and periphery sanitary condition it is very poor, and mixing wastewater with air liquid delivery pipe 108 is set so that mixing wastewater with air liquid energy is enough periodically mixed from air water
Close liquid delivery pipe 108 to discharge, so as to ensure that sanitary condition.
In addition, being additionally provided with the second hand-operated valve 110, the 3rd hand-operated valve 111 on the blast pipe 106 and being mixed respectively positioned at air water
The front and rear side of liquid delivery pipe 108 is closed, for manually operated, break-make is manually realized when necessary.
As illustrated, provided with filtrate 118, filter plate 112 and some between filtering area and gathering ground in the filter body 1
Filter 113.The bottom of filter body 1 is provided with the second pressure transmitter 109 for being used for monitoring the loss of flood peak, is damaged according to head
There is provided backwash foundation for mistake situation.
As illustrated, the water storage device 11 is by head-tank 1101, user's feed pipe 1102, the 4th hand-operated valve 1103,
5th hand-operated valve 1104, fluid level transmitter 1105, overflow pipe 1106, Waste drainage valve for emptying container 1107 are constituted, and head-tank 1101 is used for
Storage regulation clear water, and backwashing water is provided, user's feed pipe is used to supply water to user, and the 4th hand-operated valve 1103 and the 5th is manual
Valve 1104 is used for the system overhaul of water storage device 11, and fluid level transmitter 1105 is used for the liquid level for measuring head-tank 1101, overflow pipe
1106 are used for the overflow of head-tank 1101, it is ensured that safety, and Waste drainage valve for emptying container 1107 is used for head-tank and is vented blowdown.
In addition, the top of filter body 1 is additionally provided with charging hole 114, bottom is provided with manhole 115, for feeding, discharging
Personnel pass in and out during with maintenance.
The filtrate 118 that the filtering area of the filter body 1 is used is individual layer quartz sand, and backwash rate is easy to control, filtrate
118 not easily run off.
The top of filter body 1 is provided with water inlet spoiler 116 corresponding with water inlet 101, it is to avoid form impact water
Stream, the generation of favourable floccule body is increased water quality；The bottom of filter body 1 is provided with recoil water resistance corresponding with delivery port 102
Plate 117 is flowed, recoil is more uniformly distributed.
The filter body 1, system related valve, water pipe use SS304 stainless steels, and sanitary condition is good, makes
Use long lifespan.
The pressure type contacts filter includes two kinds of operating modes of normal filtration and backwash.
Normal filtration operating mode：The raw water after flocculant, disinfectant was added, filter body 1 is entered by water inlet 101
Inside, through the energy dissipating of spoiler 116 of intaking (avoiding impact water from smashing the floccule body in water), the flocculation zone shape on the top of filtrate 118
Into the floccule body of larger particles, thereafter by the filtrate 118 of filtering area, the floccule body of formation is intercepted and is separated from water, clear water leads to
Filtering head 113 flows into gathering ground, enters outlet pipe 5 by delivery port 102, until head-tank 1101 resupplies user.
Backwash operating mode specifically includes following steps：
1）First carried out gas during flushing, flow of inlet water adjuster 6 and loss of flood peak adjuster are closed by electrical control cubicles 3 before gas punching
13, stop water inlet pipe 4 water inlet and the water outlet of outlet pipe 5, while open the second motor-driven valve 216 reduction filter body 1 in water level extremely
At discharge outlet 104, now the auto-admission of composite exhaust valve 107, maintains filter body 1 in atmospheric pressure state；
2）Air compressor 201 is opened, and opens the first motor-driven valve 203, compressed air enters air accumulator 204, when the first pressure
Power transmitter 210 detect the compressed air pressure of air accumulator 204 it is enough when, open air regulator 207, through air mistake
Oil-free compressed air after filter 205 is filtered then enters promoting the circulation of qi by mass air flow sensor 206, check-valves 208 into gas-distribution pipe 217
Punching；
3）Gas is rushed to setting time, and electrical control cubicles 3 then open the clear water in recoil water flow regulator 213, head-tank 1101
Carried out through backwashing water pipe 211 and outlet pipe 5, and after the energy dissipating of back-flushing spoiler 117 by filter 113 into filtrate 118
Backwash；
4）After the mixed punching of air water is to setting time, electrical control cubicles 3 will turn off air regulator 207, the first motor-driven valve
203, air compressor 201, while according to the washing flow value of setting, the aperture of increase recoil water flow regulator 213 is to setting
Definite value, starts washing；
5）When being washed to setting time, the backwash of filter body 1 terminates, and closes recoil water-carrying capacity automatically by electrical control cubicles 3
The motor-driven valve 216 of adjuster 213 and second, and flow of inlet water adjuster 6 and loss of flood peak adjuster 13 are opened, system recovers water inlet
With water purification operating mode.
6）Immediately system recovers water purification operating mode, when clear water transmissometer 12 monitors that the delivery turbidity of filter body 1 exceedes
During the water standard of setting, i.e. automatically open up the 3rd motor-driven valve 1002 passes through initial filter water drainpipe 1101 to electrical control cubicles 3 by initial filter water
Discharge, when clear water transmissometer 12 monitors that effluent quality reaches requirement, electrical control cubicles 3 close the 3rd motor-driven valve 1002 automatically, clearly
Water flows into head-tank 1101 and supplies user.
Above-mentioned steps pass sequentially through gas backwash, air water joint recoil, washing filter body 1 is backwashed, punching
Wash effect more preferably, realize constant speed filter and initial filter water is discharged, water quality is more guaranteed, complies with the national standard requirements, simultaneously
Whole process is automatically controlled by electrical control cubicles 3, realizes automated job, saves cost of labor.
In addition, electrical control cubicles 3 can set 3 backwashing parameters, i.e. backwashing period, effluent quality, the loss of flood peak, filtering week
Phase is generally 24-48h, and the loss of flood peak is generally 2-2.5m, and delivery turbidity presses national respective standard setting；When in 3 parameters
One index of meaning can be backwashed when reaching automatically, also can as needed and operating experience in three parameters it is preferred its
In 1, also can pass through electrical control cubicles carry out pressure flushing.
Embodiment is not construed as the limitation to invention, but any spiritual improvements introduced based on the present invention, all Ying Ben
Within the protection domain of invention.
Claims (10)
1. a kind of air water back washing pressure type constant speed contact filtration device, including filter body（1）, backwashing system（2）, electrical control cubicles
（3）, the filter body（1）It is internal from top to bottom to include flocculation zone, filtering area, gathering ground, the filter body successively
（1）Top is provided with water inlet（101）, bottom is provided with delivery port（102）, the water inlet（101）Connect water inlet pipe（4）, it is described
Delivery port（102）Connect outlet pipe（5）；
It is characterized in that：The filter body（1）Bottom is provided with air inlet（103）, middle part is provided with discharge outlet（104）；It is described
Backwashing system（2）Using the united backwash mode of air water, including compressed air supply system, water backwashing device, recoil
Water tapping equipment；The compressed air supply system connects air inlet（103）, the water backwashing device connection outlet pipe（5）,
The back-flushing tapping equipment connects discharge outlet（104）.
2. air water back washing pressure type constant speed contact filtration device according to claim 1, it is characterised in that：The filter master
Body（1）Top is provided with exhaust outlet（105）, the exhaust outlet（105）On be connected with blast pipe（106）, the blast pipe（106）On
Provided with can be vented and can tonifying Qi composite exhaust valve（107）.
3. air water back washing pressure type constant speed contact filtration device according to claim 2, it is characterised in that：The blast pipe
（106）On be also associated with ensure health mixing wastewater with air liquid delivery pipe（108）.
4. air water back washing pressure type constant speed contact filtration device according to claim 1, it is characterised in that：The compressed air
Feeding mechanism includes air compressor（201）, compressed air hose（202）, the compressed air hose（202）One end connects air pressure
Contracting machine（201）, other end connection air inlet（103）, the compressed air hose（202）It is provided with the sky for being used for adjusting air blasting intensity
Throughput adjuster（207）With the mass air flow sensor of monitoring compressed air require（206）；The air compressor（201）Using
Oil free screw air compressor machine, compressed air is through air cleaner（205）Filtering.
5. air water back washing pressure type constant speed contact filtration device according to claim 1, it is characterised in that：The water backwashing
Device includes and outlet pipe（5）The backwash water pipe of connection（211）, the backwash water pipe（211）Being provided with is used to monitor instead
The backwash flowmeter of bath flow（212）With the recoil water flow regulator for adjusting back washing strength（213）.
6. air water back washing pressure type constant speed contact filtration device according to claim 1, it is characterised in that：The filter master
Body（1）Bottom is provided with the second pressure transmitter for being used for monitoring the loss of flood peak（109）.
7. air water back washing pressure type constant speed contact filtration device according to claim 6, it is characterised in that：The outlet pipe
（5）It is provided with loss of flood peak adjuster（13）With the 3rd pressure transmitter（14）, with second pressure transmitter（109）Realize together
Constant speed filter.
8. air water back washing pressure type constant speed contact filtration device according to claim 1, it is characterised in that：The electrical control cubicles
（3）The ups power of electric power is provided equipped with energy short time when having a power failure.
9. air water back washing pressure type constant speed contact filtration device according to claim 1, it is characterised in that：The outlet pipe
（5）It is provided with clear water transmissometer（12）, and bifurcated is connected to initial filter water tapping equipment（10）, the initial filter water tapping equipment includes first
Drainage delivery pipe（1001）With the 3rd motor-driven valve（1102）, have concurrently discharge initial filter water and the blowdown of the filter body 1 emptying
Function.
10. a kind of back-flushing method of air water back washing pressure type constant speed contact filtration device, it is characterised in that：Its work includes as follows
Step：
1）First carried out gas during flushing, electrical control cubicles are passed through before gas punching（3）Close flow of inlet water adjuster（6）With loss of flood peak regulation
Device（13）, stop water inlet pipe（4）Water inlet and outlet pipe（5）Water outlet, while opening the second motor-driven valve（216）Reduce filter body
（1）Middle water level is to discharge outlet（104）Place；
2）Open air compressor（201）, and open the first motor-driven valve（203）, compressed air is to enter air accumulator（204）, when
First pressure transmitter（210）Detect air accumulator（204）When compressed air pressure is enough, air regulator is opened
（207）, through air cleaner（205）Oil-free compressed air after filtering then passes through mass air flow sensor（206）, check-valves（208）
Into gas-distribution pipe（217）Carry out gas；
3）Gas is rushed to setting time, electrical control cubicles（3）Then open recoil water flow regulator（213）, in head-tank 1101
Clear water is through backwashing water pipe（211）And outlet pipe（5）, and through back-flushing spoiler（117）Pass through filter after energy dissipating（113）Into
Filtrate（118）Backwashed；
4）After the mixed punching of air water is to setting time, electrical control cubicles（3）It will turn off air regulator（207）, first is electronic
Valve（203）, air compressor（201）, while increasing recoil water flow regulator（213）Aperture to setting value, start washing；
5）When being washed to setting time, recoil water flow regulator is closed（213）With the second motor-driven valve（216）, filter master
Body（1）Backwash terminate, open flow of inlet water adjuster（6）With loss of flood peak adjuster（13）, system recovers water inlet and net
Water condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710650520.0A CN107285522A (en) | 2017-08-02 | 2017-08-02 | Air-water back-flushing pressure type constant-speed contact filter and back-flushing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710650520.0A CN107285522A (en) | 2017-08-02 | 2017-08-02 | Air-water back-flushing pressure type constant-speed contact filter and back-flushing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107285522A true CN107285522A (en) | 2017-10-24 |
Family
ID=60105069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710650520.0A Pending CN107285522A (en) | 2017-08-02 | 2017-08-02 | Air-water back-flushing pressure type constant-speed contact filter and back-flushing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107285522A (en) |
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| CN114949990A (en) * | 2022-06-17 | 2022-08-30 | 广东省机械研究所有限公司 | Sewage treatment system and sewage treatment process |
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Address after: 325600 No. 177, Weishi 16th Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province Applicant after: Jinjian Environmental Protection Group Co.,Ltd. Address before: 325600 No. 237, weishiba Road, Yueqing Economic Development Zone, Wenzhou, Zhejiang Applicant before: JINJIAN ENVIRONMENTAL Co.,Ltd. |
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Application publication date: 20171024 |
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