CN202265455U - Air cushion layer constant-pressure water and gas distribution independent filter head - Google Patents
Air cushion layer constant-pressure water and gas distribution independent filter head Download PDFInfo
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- CN202265455U CN202265455U CN2011203891531U CN201120389153U CN202265455U CN 202265455 U CN202265455 U CN 202265455U CN 2011203891531 U CN2011203891531 U CN 2011203891531U CN 201120389153 U CN201120389153 U CN 201120389153U CN 202265455 U CN202265455 U CN 202265455U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses an air cushion layer constant-pressure water and gas distribution independent filter head, which comprises a filter head cap, a filter head cap bottom plate, a filter head rod, a filter screen and an embedded pipe sleeve, wherein the filter head cap is in a circular arch shape, the top of the filter head cap has a residual air release hole, and the waist of the filter head cap has upper air distribution holes and lower air distribution holes; water distribution holes are formed in the filter head cap bottom plate; the upper part of the filter head cap has filter head rod mounting threads; a filter head rod water distribution pipe is arranged in the rod, a filter head rod air distribution pipe is jointed with the pipe inner wall on one side of the filter head rod water distribution pipe; the length of the lower part of the filter head rod water distribution pipe is greater than that of the air distribution pipe; the middle of the filter head rod air distribution pipe has a filter head rod residual air release hole, and the outer side wall of the lower part of the filter head rod air distribution pipe has a vertical air inlet gap; the filter head filter screen can be arranged at the bottom of the water distribution pipe; and the filter head embedded pipe sleeve is in a pipe loop shape, and the lower part of the filter head embedded pipe sleeve is in an inverted bellmouth shape. The filter head has the combined functions of aeration, water filtration and back washing, and can simplify the structure of a filter pond, guarantee work quality and improve efficiency. The filter head can be widely used in sewage biofilter treatment systems and gas water back washing filters in water supply and other industries.
Description
Technical field
The utility model relates to a kind of distribute water and air device of water treating equipment.
Background technology
The comparatively advanced BAF of operation at present generally adopts V-type filter tank structure, and aerating system and back flushing distribution are divided into two independently systems.Aerating system is installed pipe special and aeration head, and the blending rinsed gas distribution of the gas flushing of back flushing and air water then adopts filter, filter plate.
1, the filtration of V-type BAF, aeration system
Former water evenly flows into the filter tank through the water distributing pore of irrigation channel, utilizes the water action of gravity, and filter material layer is passed in infiltration, through being installed in space and the filter bar of opening on the filter on the filter plate, flows into the water collecting basin of bottom, filter tank, flows out through filtering the back outlet conduit.
In drainage, pressurized air gets into the aeration arm be installed in the filter top and through being installed in aeration head on the arm with the state of the small bubbles filter material layer through top through the aeration air-supply duct, for the mushroom of filter tank oxidation degradation work provides oxygen.
2, the backwash technique of V-type BAF
Continuity along with the filter time; Space in the filtering layer is stopped up by the biosolids of the new growth of mushroom formation and the suspended substance in the former water gradually; Filter tank filtering velocity fall head of water loss increases; For guaranteeing that the filter tank can works better, when head loss acquires a certain degree, need carry out back flushing to the filter tank.
During filter back washing, close the aerated conduit valve earlier and stop aeration, close water flashboard into simultaneously and let the former water that gets in the pond continue to filter, treat to close when pool inner water potential drop to V-type sk-top once water outlet valve after the filter.Blower fan, recoil pump and the corresponding backwash gas of switch, residual air release and backwashing water by-pass valve control mix flushing by gas flushing, air water and water 3 stages of flushing recoil to the filter tank through starting then.When air water mixes flushing with the water flushing, open the dirt discharge that water discharge valve will recoil and gather in water and the filter tank.
Carry out that gas flushing is gentle, when water mixes flushing; Water collecting basin top filter plate forms an air cushion layer voltage stabilizing down; Pressurized air after the voltage stabilizing is through the slit exhaust of filter cap top; With the state of the small bubbles filter material layer through top filter material layer is expanded, effectively remove suspended substance and the microbial film that comes off through the collision of filtering material particle.
In the traditional method, aeration head and filter, inlet pipe and back flushing tracheae independently are provided with has not only increased construction investment but also increased difficulty of construction.In addition, in aeration system, aeration head (aeration perforated pipe or aerator) does not directly have the voltage stabilizing facility can influence the aeration quality by the aerated conduit air feed.Simultaneously, because traditional BAF only forms an air cushion layer in the filter plate bottom when back flushing, the stable inadequately backwash effect that also can influence the filter tank of filter tank air pressure when gas, air-water backwashing.
Summary of the invention
The purpose of the utility model provides a kind of air cushion layer voltage stabilizing water distribution, gas distribution independence filter, solve to simplify the filter tank structure, guarantees aeration, back flushing quality, the problem of increasing work efficiency.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of air cushion layer voltage stabilizing water distribution, gas distribution independence filter comprise filter cap, filter cap base plate, filter bar, filtering net and pre-buried pipe box;
Said filter cap dome-shaped, its top have filter cap residual air release aperture, and its waist has qi-emitting hole and following qi-emitting hole;
Have water distributing pore on the said filter cap base plate;
Said filter bar top is provided with the filter bar screw thread is installed, and is provided with filter bar water distributor in the bar; Filter bar gas distribution pipe is attached on the inside pipe wall of filter bar water distributor one side, and filter bar water distributor lower length is greater than filter bar gas distribution pipe, and filter bar gas distribution pipe middle part has filter bar residual air release aperture, has vertical gas distribution pipe air inlet seam on the tube wall of the outside, bottom;
Said filter filtering net can be installed at the bottom of the pipe of water distributor;
Said filter service sleeve is the pipe collar shape, and the bottom is down bell mouth shape, in the same modulus of screw thread on screw thread and the filter bar is arranged.
The waist of said filter cap has a circle to go up qi-emitting hole under a qi-emitting hole and the circle.
On said filter bar water distributor upper end and the filter cap base plate make even in the plane, and filter bar gas distribution pipe upper end is higher than qi-emitting hole on the filter cap.
The inwall first half of said pre-buried pipe box has screw thread, and the outer wall of pre-buried pipe box has flange.
Compared with prior art the utlity model has following characteristics and beneficial effect:
The utility model adopts upper and lower two venting holes, upper air-vent in the filter tank aeration, use as solarization air cap when filtering operating mode, during, water mix backwash gentle at gas again double as recoil pore use.Following venting hole is only gentle at gas, make the recoil pore during water mix backwash uses.The top of filter cap can generate a voltage stabilizing air cushion layer that changes thickness according to air input size guaranteeing the stable of aeration and back flushing air pressure, thereby assurance aeration rate and back flushing tolerance is constant.
The filter bar of the utility model has adopted the work alone design of mode of water distribution, distribution, has effectively avoided in the filter bar, producing in the filter working process generation of vapour lock, pulse situation.Simultaneously, the filter bar has adopted the adjustable structure of mounting height, thereby highly can make the highly consistent equilibrium that can guarantee each filter aeration rate, recoil tolerance and the back flushing water yield of all filter air inlets in the filter tank through adjustment.
Because novel filter adopts above-mentioned multiple particular design; Solved thoroughly that former biological filter aeration head and filter, inlet pipe and back flushing tracheae need that problem independently is set and in aeration system, aeration head, aeration perforated pipe or aerator all are directly not have the voltage stabilizing facility can influence the aeration quality by the aerated conduit air feed; And traditional BAF stable inadequately defective of air pressure when when back flushing, only forming an air cushion layer and also can cause the filter tank at gas, air water mix backwash in filter plate bottom.
The utility model integrates aeration, drainage and backwashing function; Can guarantee that aeration, back flushing air pressure are stable; Improve workmanship and working efficiency, be widely used in saprobiont filter tank treatment system, also can be applied in the air-water backwash filter of water supply and other industry.
Description of drawings
Below in conjunction with accompanying drawing the utility model is done further detailed explanation.
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the scheme of installation of the utility model.
Fig. 3 is the using integral synoptic diagram of the utility model.
Fig. 4 is the application partial schematic diagram of the utility model.
Fig. 5 is filtration, the aeration operating mode synoptic diagram of the utility model.
Fig. 6 is filtration, the aeration operating mode principle schematic of the utility model.
Fig. 7 is the back flushing operating mode synoptic diagram of the utility model.
Fig. 8 is the back flushing operating mode principle schematic of the utility model.
Fig. 9 is the structural representation of service sleeve.
Reference numeral: 1-filter; 1.1-filter cap; 1.2-filter cap residual air release aperture; 1.3-last qi-emitting hole; 1.4-following qi-emitting hole; 1.5-filter cap base plate; 1.6-water distributing pore; 1.7-filter bar; 1.8-the filter bar is installed screw thread; 1.9-filter bar water distributor; 1.10-filter bar gas distribution pipe; 1.11-filter bar residual air release aperture; 1.12-gas distribution pipe air inlet seam; 1.13-filtering net; 1.14-service sleeve; The 2-filter plate; The 3-filter material layer; 4-water inlet cloth tank; 5-back flushing discharge channel; The 6-catchment area; 7-back flushing water shoot; 8-back flushing water inlet pipe; 9-filter back rising pipe; The 10-air-supply duct; 11-aeration rate valve; 12-backwash gas control valve; 13-aeration bubble; 14-filter tank wall; 15-back flushing bubble; 16-filter cap air cushion layer; 17-filter tank air cushion layer; The 18-aeration gas flow; 19-back flushing air-flow 1; 20-back flushing air-flow 2; 21-filter back current; 22-back flushing current.
Embodiment
Embodiment is referring to shown in Figure 1, and a kind of air cushion layer voltage stabilizing water distribution, gas distribution independence filter 1 comprise filter cap 1.1, filter cap base plate 1.5, filter bar 1.7, filtering net 1.13 and pre-buried pipe box 1.14; Said filter cap 1.1 dome-shaped, its top have filter cap residual air release aperture 1.2, and its waist has qi-emitting hole 1.3 and following qi-emitting hole 1.4; Have water distributing pore 1.6 on the said filter cap base plate 1.5.Said filter bar 1.7 tops are provided with the filter bar screw thread 1.8 are installed, and are provided with filter bar water distributor 1.9 in the bar, and filter bar gas distribution pipe 1.10 is attached on the inside pipe wall of filter bar water distributor 1.9 1 sides, and filter bar water distributor 1.9 lower length are greater than filter bar gas distribution pipe; Filter bar gas distribution pipe middle part has filter bar residual air release aperture 1.11, has vertical gas distribution pipe air inlet seam 1.12 on the tube wall of the outside, bottom; Said filter filtering net 1.13 can be installed at the bottom of the pipe of water distributor; Said filter service sleeve 1.14 is the pipe collar shape, and the bottom is down bell mouth shape, in the same modulus of screw thread on screw thread and the filter bar is arranged.The waist of above-mentioned filter cap has a circle to go up qi-emitting hole 1.4 under a qi-emitting hole 1.3 and the circle; On said filter bar water distributor 1.9 upper ends and the filter cap base plate 1.5 make even in the plane, and filter bar gas distribution pipe 1.10 upper ends are higher than qi-emitting hole 1.3 on the filter cap.
Referring to shown in Figure 2, said air cushion layer voltage stabilizing water distribution, gas distribution independence filter 1 are installed on the filter plate 2 in filter tank, have one to cross water space between filter cap base plate 1.5 lower planes and the filter plate 2, guarantee the water distributing pore works better.Screw thread 1.8 is installed to the filter bar when filter is installed and is screwed into the screw thread in the pre-buried cover sleeve pipe 1.14; Pre-buried pipe boxes 1.14 in filter club head below is installed screw thread 1.8 and is embedded in filter plate 2 form adjustable and are connected and fix, and filter bar residual air release aperture 1.11 is positioned at the hydraucone of service sleeve 1.14.
Referring to Fig. 3, shown in Figure 4; Top, filter tank distribution two row's water inlet cloth tanks 4; One side filter tank wall 14 of catchment area, filter plate bottom, filter tank 6 and back flushing water inlet pipe 8, filter back rising pipe 9, and the outlet conduit of aeration rate valve 11, backwash gas control valve 12 is communicated with.
Referring to Fig. 9, the inwall first half of pre-buried pipe box 1.14 has screw thread, and the outer wall of pre-buried pipe box 1.14 has three circle flanges, in order to be connected firmly with filter plate.
Said filter bar residual air release aperture 1.11 can guarantee that air cushion layer 17 residual air in filter tank can discharge totally in the telescopic hydraucone.
The application method of a kind of said air cushion layer voltage stabilizing water distribution, gas distribution independence filter, step is following:
Aeration, filter operating mode, referring to Fig. 5, shown in Figure 6:
The pressurized air that gets into the catchment area forms filter tank air cushion layer 17 at its top; Increase when the air inlet of the below that reaches filter bar gas distribution pipe 1.10 stitches 1.12 along with the increase air cushion layer thickness of tolerance is continuous; Pressurized air gets into the top of filter filter cap 1.1 through the port of air inlet seam, gas distribution pipe; Form second air cushion layer-filter cap air cushion layer 16 on filter cap top; Along with the increase air cushion layer thickness of tolerance constantly increases when reaching qi-emitting hole 1.3 when following, pressurized air is through last qi-emitting hole outflow formation aeration gas flow 18, is that the mushroom of filter tank oxidation degradation work provides oxygen with aeration bubble 13 states entering filter material layer.Simultaneously, filter the filter that the back forms through filter material layer after current 21 get into filter caps 1.1 through the water distributing pore on the filter cap base plate 1.6, catchment area, the 1.9 inflow filter tank of the water distributor on the filter bar 6 then, rising pipe 9 outflows after filter.
The back flushing operating mode, referring to Fig. 7, shown in Figure 8:
The gas flushing stage; The catchment area 6 of pressurized air air-supply duct 10, bottom, backwash gas control valve 12 entering filter tank; And form filter tank air cushion layer 17 at the top, catchment area, after air cushion layer reaches certain thickness, get into filters, and on its filter cap, form filter cap air cushion layer 16 through the seam of the gas distribution pipe air inlet on the filter bar 1.12; When gas distribution is following under the thickness of this air cushion layer reaches; From filter cap qi-emitting hole 1.3,1.4, flow out, form back flushing back flushing air- flow 19 and 20, all with the filter material layer 3 in back flushing bubble 15 states entering filter tank to reach the purpose of gas flushing filtrate.Need to prove at this, because the 3-4 that the tolerance during filter back washing is about aeration rate doubly, so thick many of the air cushion layer that filter tank air cushion layer 17 that forms and filter cap air cushion layer 16 form during all than aeration.
Gas, water mix rinse stage, and the gentle rinse stage of the working condition of backwash gas is identical.At this moment, backwashing water gets into water collecting basin 6 through the back flushing pipeline, under the hydraulic pressure effect, gets into the filter cap through filter bar water distributor 1.9, flows out through the water distributing pore on the filter cap base plate 1.6, passes filter material layer 3 and forms back flushing current 22.
The water rinse stage; The backwash gas control valve is closed, and the residual air of top, catchment area air cushion layer and filter bar, filter cap internal memory can discharge through filter bar residual air release aperture 1.11 and filter cap residual air release aperture 1.2, to avoid forming vapour lock; At this moment; To all be full of water in catchment area and the filter, when backwashing water after the back flushing pipeline gets into water collecting basin, under the hydraulic pressure effect, get into the filter cap and flow out formation back flushing current 22 through the water distributing pore on the filter cap base plate through the water distribution in the filter bar, gas distribution pipe; Flow into back flushing discharge channel 5 through filter material layer through back flushing water shoot 7; Two venting holes during the water flushing on the filter cap and residual air release aperture also have a spot of back flushing current and flow out, because its aperture is very little, discharge is also very little.
Claims (4)
1. an air cushion layer voltage stabilizing water distribution, gas distribution independence filter (1) comprise filter cap (1.1), filter cap base plate (1.5), filter bar (1.7), filtering net (1.13) and pre-buried pipe box (1.14);
It is characterized in that: said filter cap (1.1) dome-shaped, filter cap residual air release aperture (1.2) is arranged at its top, and its waist has qi-emitting hole (1.3) and following qi-emitting hole (1.4);
Have water distributing pore (1.6) on the said filter cap base plate (1.5);
Said filter bar (1.7) top is provided with the filter bar screw thread (1.8) is installed, and is provided with filter bar water distributor (1.9) in the bar; Filter bar gas distribution pipe (1.10) is attached on the inside pipe wall of filter bar water distributor (1.9) one sides; Filter bar water distributor (1.9) lower length is greater than filter bar gas distribution pipe (1.10); Filter bar gas distribution pipe (1.10) middle part has filter bar residual air release aperture (1.11), has vertical gas distribution pipe air inlet seam (1.12) on the tube wall of the outside, bottom;
Said filter filtering net (1.13) can be installed at the bottom of the pipe of water distributor;
Said filter service sleeve (1.14) is the pipe collar shape, and the bottom is down bell mouth shape, in the same modulus of screw thread on screw thread and the filter bar is arranged.
2. air cushion layer voltage stabilizing water distribution according to claim 1, gas distribution independence filter is characterized in that: the waist of said filter cap has a circle to go up qi-emitting hole (1.4) under a qi-emitting hole (1.3) and the circle.
3. air cushion layer voltage stabilizing water distribution according to claim 1, gas distribution independence filter; It is characterized in that: said filter bar water distributor (1.9) upper end is gone up the plane with filter cap base plate (1.5) and is made even, and filter bar gas distribution pipe (1.10) upper end is higher than qi-emitting hole on the filter cap (1.3).
4. air cushion layer voltage stabilizing water distribution according to claim 1, gas distribution independence filter is characterized in that: the inwall first half of said pre-buried pipe box (1.14) has screw thread, and the outer wall of pre-buried pipe box (1.14) has flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203891531U CN202265455U (en) | 2011-10-13 | 2011-10-13 | Air cushion layer constant-pressure water and gas distribution independent filter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203891531U CN202265455U (en) | 2011-10-13 | 2011-10-13 | Air cushion layer constant-pressure water and gas distribution independent filter head |
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| Publication Number | Publication Date |
|---|---|
| CN202265455U true CN202265455U (en) | 2012-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203891531U Withdrawn - After Issue CN202265455U (en) | 2011-10-13 | 2011-10-13 | Air cushion layer constant-pressure water and gas distribution independent filter head |
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| Country | Link |
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| CN (1) | CN202265455U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372359A (en) * | 2011-10-13 | 2012-03-14 | 惠州市铭博实业发展有限公司 | Independent filter head for stable-pressure water distribution and gas distribution of air cushion layer and application method thereof |
-
2011
- 2011-10-13 CN CN2011203891531U patent/CN202265455U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372359A (en) * | 2011-10-13 | 2012-03-14 | 惠州市铭博实业发展有限公司 | Independent filter head for stable-pressure water distribution and gas distribution of air cushion layer and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120606 Effective date of abandoning: 20130306 |
|
| RGAV | Abandon patent right to avoid regrant |