CN202011765U - Immersed membrane filter with lifting pump chamber - Google Patents
Immersed membrane filter with lifting pump chamber Download PDFInfo
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- CN202011765U CN202011765U CN2011200270534U CN201120027053U CN202011765U CN 202011765 U CN202011765 U CN 202011765U CN 2011200270534 U CN2011200270534 U CN 2011200270534U CN 201120027053 U CN201120027053 U CN 201120027053U CN 202011765 U CN202011765 U CN 202011765U
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- water
- membrane filtration
- water outlet
- producing pipe
- filtration pond
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Abstract
The utility model relates to an immersed membrane filter with a lifting pump chamber, which is characterized in that a water inlet chamber is connected with the membrane filter through an inflow weir, a water production pipe is connected with a main water out channel, a water retaining weir plate is arranged at the outlet of the water production pipe, the main water outlet channel is connected with a main water outlet pipe, the height of the inflow weir is higher than that of the water retaining weir plate, the lifting pump chamber is arranged at one end of the membrane filter, the main water outlet channel extends into the lifting pump chamber, water pumps are arranged in the lifting pump chamber, the main water outlet channel is connected with the main water outlet pipe through the water pumps, and a bypass is formed on the main water outlet pipe. The immersed membrane filter of the utility model has the advantages that pumping water pumps connected in parallel on the water production pipe on a single-grid filter are cancelled, complete siphon gravity flow of water produced by a membrane can be realized by lowering the water level of the main water outlet channel by a lifting pump, and the single-grid filter is simple in equipment, stronger in adaptability and better in energy-saving effect. The number of the water pumps in the lifting pump chamber is smaller, the investment and the energy consumption are reduced, and the operation and management are convenient.
Description
Technical field
The utility model relates to a kind of water treatment structures commonly used, is specifically related to the submerged membrane filter tank of permanent liquid level control siphon gravity flow, particularly a kind of submerged membrane filter tank with lift pump room.
Background technology
Membrane technique is the water technology of 21 century, especially is most widely used in the public works water treatment with micro-filtration, ultra-filtration membrane, and submerged membrane is wherein use always a kind of.The filter tank that with the submerged membrane is filtration medium is called the membrane filtration pond.Because membrane filtration pond support equipment is simple relatively, single pond water yield is relatively large, to coming not advantages of higher of water water quality requirement, is widely adopted.Because factors such as film production material, manufacture craft and costs, membrane flux often value is bigger, and transmembrane pressure is also bigger, and therefore the membrane filtration pond of adopting both at home and abroad at present all adopts the mode of water pump " suction " to overcome transmembrane pressure.Along with the development of membrane technique, the production cost of film greatly reduces, and particularly homemade big flux, low pressure reduction, membrane technique is increasingly mature cheaply, makes that utilizing the siphon gravity flow to overcome the mould difference replaces traditional pump suction and become possibility.The invalid energy consumption of bringing because of water pump operation be can reduce greatly like this, few facility investment and running maintenance work fallen.If water temperature in winter is lower, when the siphon gravity flow is not enough to satisfy the water production rate requirement, water pump suction bypath system in parallel can be set also, switch to the water pump suction in case of necessity.Because pump aspirates every lattice filter tank and all water pump and switch valve etc. need be set, equipment is more, cost is higher, management bothers.And owing to be subjected to the influence of pump selection, single lattice filter tank water yield is often done not quite, and therefore larger water factory's membrane filtration pond lattice number can be a lot, and equipment is just more.
The utility model content
The purpose of this utility model provides a kind of submerged membrane filter tank with lift pump room, in the concentrated lift pump room that is provided with of membrane filtration pond one end, utilize water pump suction castering action to reduce the total channel water of water outlet position,, play the effect that improves water production rate to enlarge the water level discrepancy in elevation of membrane filtration pond siphon gravity flow.
In order to realize this purpose, the technical solution of the utility model is as follows: a kind of submerged membrane filter tank with lift pump room, comprise into Shui Zongqu, the intake chamber that is connected with the total canal of water inlet, the membrane filtration pond that is communicated with intake chamber, be provided with the submerged ultrafiltration assembly in the membrane filtration pond, the submerged ultrafiltration assembly is connected with water producing pipe, after water producing pipe passes membrane filtration pond pool wall, be connected with the total canal of water outlet, it is characterized in that being connected by influent weir between intake chamber and the membrane filtration pond, the water producing pipe outlet is provided with the dash weir plate, the influent weir height is higher than the overfall plate height, this membrane cisterna one end is provided with lift pump room, and the total canal of water outlet extends in the lift pump room, is provided with water pump in the lift pump room, the total canal of water outlet is connected with outfall sewer by water pump, forms bypass on outfall sewer.According to an embodiment of the present utility model, the submerged membrane filter tank comprises many lattice membrane filtration pond, this many lattice membrane filtration pond also is unified into single or double, every lattice membrane filtration pond is connected with an intake chamber by influent weir, total canal of intaking is connected with these a plurality of intake chambers, and every lattice membrane filtration pond is connected with the total canal of water outlet by a water producing pipe.Every lattice membrane filtration pond also is provided with the liquid level instrument, on the every water producing pipe regulated valve that is subjected to liquid level instrument signal control is set, and water producing pipe also is provided with vacuum-pumping tube.Filter tank influent weir and water producing pipe outlet overfall plate height differ from 3～6m, and difference of altitude was generally 1 ~ 2m at the bottom of the dash weir plate pushed up the total canal canal of water outlet.
Key of the present utility model is that water outlet total canal in filter tank is reduced to the enough degree of depth that need and lift pump room is set, when lift pump room aspirate in total canal water producing pipe outlet dash weir plate and influent weir formation drop in order to restrain required maximum transmembrane pressure; The total canal of water outlet can be pressure type (the channel water position may surpass top board), transmembrane pressure hour outfall sewer fully siphon go out to flow.The utility model is provided with influent weir, and on water producing pipe regulated valve is set, and utilizes the water level discrepancy in elevation siphon gravity flow of influent weir and the total channel of water outlet, and it is constant to control in every lattice membrane cisterna liquid level by the regulating and controlling valve, to reach the constant rate filtration purpose.Advantage of the present utility model has been to cancel the suction water pump on the water producing pipe of single lattice filter tank, relies on lift pump room to reduce the total water in a canal of water outlet position and realizes the complete siphon gravity flow of membrane cisterna, and single lattice filter tank equipment is simple, control and management convenient, and adaptability is stronger, and energy-saving effect is better.Water pump platform number is less in the lift pump room, and investment, energy consumption reduce, and operational management is convenient.
Description of drawings
Fig. 1 is the band lift pump room membrane filtration pond orthographic plan of the utility model one embodiment.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 1.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
The utility model is a kind of submerged membrane filter tank with lift pump room, comprise into Shui Zongqu 1, the intake chamber 3 that is connected with the total canal 1 of water inlet, the membrane filtration pond 5 that is communicated with intake chamber 3, be provided with submerged ultrafiltration assembly 6 in the membrane filtration pond 5, submerged ultrafiltration assembly 6 is connected with water producing pipe 7, after water producing pipe 7 passes membrane filtration pond pool wall, be connected with the total canal 9 of water outlet, it is characterized in that being connected by influent weir 4 between intake chamber 3 and the membrane filtration pond 5, water producing pipe 7 outlets are provided with dash weir plate 8, and the total canal 9 of water outlet is connected with outfall sewer 15, influent weir 4 highly is higher than dash weir plate 8 height, these membrane filtration pond 5 one ends are established lift pump room 16, and the total canal 9 of water outlet extends in the lift pump room 16, is provided with water pump in the lift pump room 16, the total canal of water outlet is connected with rising pipe 18 by water pump, and rising pipe 18 is connected with outfall sewer 15 again.According to an embodiment of the present utility model, many lattice permanent liquid level siphon gravity flow submerged membrane filter tank also is unified into single or double and lift pump room component film filter tank, single lattice filter tank is provided with influent weir, liquid level instrument, and regulated valve 10 and vacuum-pumping tube 14 are set on the water producing pipe, realizes that permanent liquid level goes out stream; The total canal of water outlet falls dark and the influent weir drop strengthens, to overcome required maximum transmembrane pressure.Membrane filtration pond one end is established lift pump room, and the total canal of water outlet extends in the lift pump room, switches to the water pump suction when needing and reduces the total water in a canal of water outlet position, returns outfall sewer after the lifting.
The utility model suitably reduces the total canal of water outlet, water producing pipe outlet dash weir plate top (is generally 3 ~ 6m) with the transmembrane pressure that influent weir plate hight difference can satisfy under the least favorable condition, when water pump pump up water potential drop is low, still can satisfy aquifer yield, the dash weir plate of water producing pipe outlet pushes up the overcurrent should satisfy lift pump room and draw water the time of the discrepancy in elevation (minimum depth) at the bottom of the canal and requires (to be generally 1 ~ 2m), the total canal top board of water outlet can bear uplift pressure, the siphon gravity flow is satisfied in the lifting of water level when hanging down transmembrane pressure to adapt to low wash water.
The utility model is provided with traditional filter tank influent weir simultaneously and adds that to treat the drainage amount between balanced each filter grid permanent liquid level control is incorporated into the membrane filtration pond to guarantee filtration velocity constant theory, forms permanent liquid level siphon gravity flow membrane filtration pond.Cancel traditional filter tank water-supplying chamber and effluent weir simultaneously, reduce the height of the total canal of water outlet, cancel the suction water pump that every lattice membrane filtration pond is provided with, change in the concentrated lift pump room that is provided with of membrane cisterna one end, utilize water pump suction castering action to reduce the total channel water of water outlet position, to enlarge the water level discrepancy in elevation of membrane filtration pond siphon gravity flow, play the effect that improves water production rate.Set out the supply mains on the total canal of water outlet, the gravity flow water outlet is provided with check valve or electronic (pneumatic) valve when allowing in the channel water position on the outfall sewer.The total canal of water outlet extends in the lift pump room, establish some water pumps in the lift pump room, single water pump outlet pipe is established check valve or electronic (pneumatic) valve, converge into be connected to the outfall sewer valve behind the rising pipe after, the pump house rising pipe is connected to outfall sewer after water pump lifting, can realize still can accomplishing to reduce the purpose that water pump operation is saved energy consumption from flowing out the switching that stream and pump promote.Work as each lattice membrane filtration pond water producing pipe variable valve open degree generally speaking greater than 60%, and water level rises constantly still when exceeding set(ting)value in the filter tank, should open lift pump, closes check valve or electronic (pneumatic) valve on the outfall sewer simultaneously.The lift pump room water pump can adopt conventional impeller pump, mixed or propeller pump, and single-pump flow can be done greatly, and the platform number reduces.Water outlet total canal in the utility model filter tank should be the pressure canal, to adapt to the bigger luffing in channel water position.
Embodiment is the membrane filtration pond of a band lift pump room as shown in Figure 1,5 double layout component film filter tanks, 6 lattice membrane filtration ponds, and an end is arranged lift pump room 18.The total canal 1 of the water inlet in membrane filtration pond 5 is provided with water intaking valve 2, enters single pond intake chamber 3, enters filter tank 5 by water inlet overflow weir 4.Submerged membrane assembly 6 is set in the filter tank 5, and film produces water and enters water producing pipe 7, enters into the total canal 9 of water outlet, and the water producing pipe lower end is provided with dash weir plate 8.Form after water producing pipe 7 is bled by valve tube 14 and produce water passage, regulated valve 10 is set after the vacuum-pumping tube 14 on the water producing pipe 7.Filter tank 5 enters into the total canal 13 of draining by water discharging valve 12 is set.Every lattice filter tank is provided with liquid level instrument 11, by the open degree of liquid level signal regulating and controlling valve 10.The total channel 9 of water outlet extends to lift pump room 16, the total canal 9 of water outlet picks out outfall sewer 15, establish 3 water pumps 17 in the lift pump room 16, after promoting, total canal 9 suctions of water outlet converge into a rising pipe 18, converge after outfall sewer check valve or electronic (pneumatic) valve 19, establish check valve or electronic (pneumatic) valve 20 on the separate unit pumping line, realize switching with valve 19.
Single in this embodiment lattice membrane filtration long 8400mm in pond, wide 3800mm, in establish double totally 8 row submerged ultrafiltration assemblies, the about 2520m of each assembly membrane area
2(external diameter), total membrane area 20160m
2, designed membrane flux 35 l/m
2H, about 1.69 ten thousand m of single lattice design water production rate
3/ d, total about 100,000 m of water production rate
3/ d, the about 2 ~ 3m of transmembrane pressure during the design flux.Each membrane module is connected on single lattice water producing pipe by producing the water arm, single lattice water producing pipe caliber DN500, electronic or the operated pneumatic valve of DN500 band positioner is set on the water producing pipe, vertex is provided with DN50 vacuum-pumping tube and valve, slide valve is adopted in water inlet, size 500 * 500mm, slide valve, size 600 * 600mm are adopted in draining.In the middle of the double filter tank the total channel of water outlet is set, the total canal of water outlet falls deeply relatively, forms the enough discrepancy in elevation with influent weir.Water producing pipe directly reaches the total canal of water outlet bottom, and the water producing pipe outlet is provided with the dash weir plate, and filter tank influent weir and water producing pipe outlet overfall plate hight differ from 3～6m.The total width of the channel degree of water outlet is 4m, and the degree of depth is 2.5m, is pressure-bearing type, to adapt to the big luffing in channel water position.Filter tank one end is arranged lift pump room (can comprise gas blower, distribution or the like), the total channel of water outlet is connected to lift pump room, and pick out the DN1200 outfall sewer, establish 3 water pumps, 2 usefulness 1 in the lift pump room and be equipped with (can be with speed control by frequency variation), water pump absorbs water from the total channel of water outlet, and each pumping line is connected to outfall sewer after converging into a rising pipe.Check valve or electronic (pneumatic) valve are set on the outfall sewer of filter tank, check valve or electronic (pneumatic) valve are set on every pumping line, convenient from flowing out the switching that stream and pump promote.The utility model lift pump room can be arranged to adapt to various needs with gas, water backwashing, matting, power distribution station or the like combination, backwashing pump is set on the water outlet Zong Qu appropriate location can also prevent to occur in the canal stagnant water.The utility model can be used for newly-built water factory, also can be used for mating with the original system elevation in the reorganization and expansion of old water factory.Do not relate to dismounting, film back flushing, matting or the like the others of membrane filtration pond membrane module in the utility model, can be provided with by common mode.
Claims (5)
1. be with the submerged membrane filter tank of lift pump room, comprise into Shui Zongqu, the intake chamber that is connected with the total canal of water inlet, the membrane filtration pond that is communicated with intake chamber, be provided with the submerged ultrafiltration assembly in the membrane filtration pond, the submerged ultrafiltration assembly is connected with water producing pipe, after water producing pipe passes membrane filtration pond pool wall, be connected with the total canal of water outlet, the total canal of water outlet is connected with outfall sewer, it is characterized in that being connected by influent weir between intake chamber and the membrane filtration pond, and the water producing pipe outlet is provided with the dash weir plate, the influent weir height is higher than the overfall plate height, this membrane filtration pond one end is established lift pump room, and the total canal of water outlet extends in the lift pump room, is provided with water pump in the lift pump room, the total canal of water outlet is connected with outfall sewer by water pump, forms bypass on outfall sewer.
2. by the described membrane filtration of claim 1 pond, it is characterized in that the submerged membrane filter tank comprises many lattice membrane filtration pond, this many lattice membrane filtration pond also is unified into single or double, every lattice membrane filtration pond is connected with an intake chamber by influent weir, total canal of intaking is connected with these a plurality of intake chambers, and every lattice membrane filtration pond is connected with the total canal of water outlet by a water producing pipe.
3. by the described membrane filtration of claim 2 pond, it is characterized in that every lattice membrane filtration pond also is provided with the liquid level instrument, on the every water producing pipe regulated valve that is subjected to liquid level instrument signal control is set, water producing pipe also is provided with vacuum-pumping tube.
4. by claim 1 or 2 described membrane filtration ponds, it is characterized in that filter tank influent weir and water producing pipe outlet overfall plate height differs from 3～6m.
5. by claim 1 or 2 described membrane filtration ponds, the dash weir plate that it is characterized in that the water producing pipe outlet pushes up that difference of altitude is 1 ~ 2m at the bottom of the total canal canal of water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200270534U CN202011765U (en) | 2011-01-27 | 2011-01-27 | Immersed membrane filter with lifting pump chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200270534U CN202011765U (en) | 2011-01-27 | 2011-01-27 | Immersed membrane filter with lifting pump chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202011765U true CN202011765U (en) | 2011-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200270534U Expired - Fee Related CN202011765U (en) | 2011-01-27 | 2011-01-27 | Immersed membrane filter with lifting pump chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202011765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616887A (en) * | 2011-01-27 | 2012-08-01 | 上海市政工程设计研究总院（集团）有限公司 | Immersed film filter with lift pump house, and water production method thereof |
-
2011
- 2011-01-27 CN CN2011200270534U patent/CN202011765U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102616887A (en) * | 2011-01-27 | 2012-08-01 | 上海市政工程设计研究总院（集团）有限公司 | Immersed film filter with lift pump house, and water production method thereof |
| CN102616887B (en) * | 2011-01-27 | 2015-04-15 | 上海市政工程设计研究总院（集团）有限公司 | Immersed film filter with lift pump house, and water production method thereof |
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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: 20111019 Termination date: 20200127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |