CN102583728B - Rotary type pulse water distributor with corrugated guide rail - Google Patents
Rotary type pulse water distributor with corrugated guide rail Download PDFInfo
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- CN102583728B CN102583728B CN2012100162952A CN201210016295A CN102583728B CN 102583728 B CN102583728 B CN 102583728B CN 2012100162952 A CN2012100162952 A CN 2012100162952A CN 201210016295 A CN201210016295 A CN 201210016295A CN 102583728 B CN102583728 B CN 102583728B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 126
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims description 29
- 230000007704 transition Effects 0.000 claims description 13
- 239000004677 Nylon Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 229920001778 nylon Polymers 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
- 239000013536 elastomeric material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 abstract description 36
- 239000010865 sewage Substances 0.000 abstract description 10
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 6
- 230000007062 hydrolysis Effects 0.000 description 5
- 238000006460 hydrolysis reaction Methods 0.000 description 5
- 230000020477 pH reduction Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- LLPOLZWFYMWNKH-CMKMFDCUSA-N hydrocodone Chemical compound C([C@H]1[C@H](N(CC[C@@]112)C)C3)CC(=O)[C@@H]1OC1=C2C3=CC=C1OC LLPOLZWFYMWNKH-CMKMFDCUSA-N 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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- Sliding Valves (AREA)
Abstract
The invention relates to a rotary type pulse water distributor with a corrugated guide rail. According to the rotary type pulse water distributor, the bottom of a water distribution groove (7) is provided with a water inlet pipe (10) and water distribution pipes (9); valve supporting seats (14) with the same number as that of the water distribution pipes (9) are fixedly connected to the inner wall of the water distribution groove (7), and each valve supporting seat (14) is internally provided with a piston valve rod (8); the piston valve rods (8) are fixedly connected with a roller cross rod (15); the roller cross rod (15) is fixedly connected with a roller fixing framework (20), and a pair of rollers (19) are arranged in the roller fixing framework (20); the top end of the water distribution groove (7) is provided with a bracket (5), and a bearing block (3) is arranged on the bracket (5); a speed reducer (2) and a guide rail wheel (6) are connected into a whole through a transmission shaft (1); and a raised corrugated guide rail on the side surface of the guide rail wheel (6) is clamped into the pair of rollers (19) to slide. The rotary type pulse water distributor has the advantages of uniform water distribution and switching, controllability, convenience for mounting and compact structure and can be widely applied to water distribution of sewage or water treatment systems.
Description
Technical field
The present invention relates to a kind of rotary type pulse water distributor with corrugated guide rail, be applied to the water distribution of sewage and water treatment system, belong to water-treatment technology field.
Background technology
The water distribution of sewage and water treatment system, especially hydrolysis acidification pool and settling pond are as the sewage disposal middle and high concentration sewage disposal biochemical pretreatment technology that arrives commonly used and advanced treatment process pond, application in sewage disposal is more and more extensive, and is also more and more higher to its processing requirement simultaneously.The effect of hydrolysis acidification pool or settling pond is decided by water distribution and hybrid mode in the pond largely, be pulse water distributing device and use at present more, mostly realize the treatment tanks such as hydrolysis acidification pool or settling pond are carried out moisturizing and mixing by producing the recurrent pulses current.
Pulse water distributing device roughly has Four types by principle of work: vacuum type, Qie Menshi, hydrocone type and electric valve formula.Although the vacuum type pulse water distributing device can flexible pulse and cycle, needs to install vacuum apparatus in its process of construction, produce noise during work large.Cut the gate-type water distributor and cut door by installing annular on central water inlet pipe, open and close with pulse valve and cut door, realize the recurrence interval by the fluctuation in stage time, but the impulse valve difficulty of processing is large, deposition etc. can cause pulser malfunctioning.Siphon type pulse water device simple structure, but its production cycle and flow are all fixed, so when the water inlet of hydrolysis acidification pool or settling pond or processing condition change, recurrence interval and flow can not be adjusted according to the variation of processing condition, thereby have affected the wastewater treatment efficiency of the treatment tanks such as hydrolysis acidification pool or settling pond.Electricity valve formula water distributor is controlled flexibly, but needs electric programming, also needs supporting maintenance valve except main valve, the many valves of multiple spot, and the dismounting of valve class is convenient not and support expense is high.
Summary of the invention
The purpose of this invention is to provide a kind of energy flexible recurrence interval, simply constructed pulse water distributing device, this pulse water distributing device energy one machine is multi-control, thereby has solved many drawbacks of existing pulse water distributing device.
In order to achieve the above object, the present invention adopts a side to be provided with the guide rail wheel that is suspended in cloth tank top of corrugated guide rail, corrugated guide rail on the guide rail wheel side moves in roller, driving piston valve spindle moves up and down again, reaching the guide rail wheel rotates a circle, the minimum open and close of each water distributor are once opened water distributor and are carried out water distribution or close the pulse water distribution purpose that water distributor stops water distribution.By regulating the guide rail wheel speed and to the design (ripple amplitude, recurrence interval) of the bellows-shaped of guide rail, the machine of realizing drives a plurality of piston valve spindles, reaches water distribution uniformity.Need not than high manufacturing accuracy and running accuracy, expense is low, can intersect set point control to time of cloth water spot and program.
This rotary type pulse water distributor with corrugated guide rail comprises the cloth tank, and the water inlet pipe at the center, the end of cloth tank, the some water distributors that are evenly arranged around water inlet pipe, its structural feature is: cloth tank inwall fixed (adopt weldering, riveting, inlay or the cast-in-place moulding is fixedly connected with) valve support that quantity is identical with water distributor, each valve support one side is offered guide path, its upper and lower two horizontal planes are offered through hole, piston valve spindle is installed in through hole, the piston valve spindle bottom is corresponding with the water distributor top, and piston valve spindle overlaps with the medullary ray of water distributor; The fixed roller cross bar in piston valve spindle upper end, a fixed nylon guide way roller on the roller cross bar, the nylon guide way roller is stuck in the guide path of valve support and moves up and down along guide path, and it is very smooth that the nylon guide way roller makes the roller cross bar move up and down along guide path, and the jam phenomenon does not occur; Roller cross bar and roller fixed frame are fixed, and two rollers moving to clamp roll are installed in the roller fixed frame; Between roller, Matching installation has corrugated guide rail, and corrugated guide rail is cemented on the guide rail wheel side; The guide rail wheel is connected with step-down gear by transmission shaft, bearing support, and bearing support is connected with the support on cloth tank top, and step-down gear also is connected with support by antitorque strongback.
The shape of above-mentioned corrugated guide rail is comprised of the dull and stereotyped district of high-order dull and stereotyped district (crest of ripple), zone of transition and low level (trough of ripple), and wherein high-order dull and stereotyped district (crest of ripple) is identical to the stroke on the dull and stereotyped vertical range of distinguishing (trough of ripple) of low level and piston valve spindle bottom and water distributor top.
Described corrugated guide rail is that ripple is from high-order dull and stereotyped district process zone of transition to the dull and stereotyped district of low level, the horizontal throw of ripple trajectory generation of process on the guide rail wheel side of getting back to high-order dull and stereotyped district through zone of transition again is during as the recurrence interval, the quantity of recurrence interval is to require to select 1 according to the water distribution water yield, or 2, or 3, or 4, the horizontal throw in each district is identical or different simultaneously.
Between described roller, corrugated guide rail is arranged is that gap between a pair roller is that the thickness of corrugated guide rail increases by 2～4mm orbit gap more in addition to Matching installation.
Described cloth tank adopts stainless steel plate to make round basin shape tank.
Described piston valve spindle bottom is corresponding with the water distributor top, and to be piston valve spindle also be provided with the valve plug of elastomeric material with the water distributor contact part.
The present invention has advantages of as follows:
1. welded a corrugated guide rail on the side due to the guide rail wheel that forms water distributor, and according to the water distribution processing requirement, determine the size of ripple amplitude and recurrence interval, guarantee to make simple structure of the present invention, compact construction under good cloth water condition, the component installation and maintenance are convenient.
2. because the present invention is driven transmission shaft and directly driven the guide rail wheel that is welded with corrugated guide rail by step-down gear, the rotating speed that needs with technique rotates, the high-order dull and stereotyped district (crest) of the corrugated guide rail on the guide rail wheel side is to the vertical range in the dull and stereotyped district of low level (trough), be the working stroke of the upper and lower motion of piston valve spindle, therefore, this pulse water distributing device has solved that the water distribution of existing water distributor is inhomogeneous, processing efficiency is low, susceptible to plugging problem, and its water distribution effect is better than other forms of water distributor.
3. because actuator of the present invention all is positioned on the water surface, installation and maintenance are convenient, need not higher working accuracy, just can realize easily the functional requirement of pulse water distribution, investment and working cost are lower, and a machine drives a plurality of piston valve spindles, has certain engineering using value.
4. the corrugated guide rail that adopts in design of the present invention snaps between a pair roller, the roller contact mode of sliding between a pair roller, and also all friction pair materials all adopt nylon and metallic contact, and capable of reducing friction resistance is avoided the jam phenomenon.
5. when roller of the present invention moves along the corrugated guide rail on the guide rail wheel side, the roller revolving force passes to roller fixed frame and roller cross bar successively by standing bolt, pass to valve support by guide path after being born by guide path again, therefore operate steadily, water distribution is reliable for effect.
6. the present invention presses the performances such as shape of guide rail wheel and corrugated guide rail, speed control by frequency variation in conjunction with the drive-motor of step-down gear, can be from the opening and closing of a water distribution time and water distribution position enterprising line number water distribution mouth of pipe, realize the water distribution adjusting, compare with the electric valve formula water distributor that has had, have advantages of on technical feature in form.
Description of drawings
Fig. 1 is the structural representation that both sides of the present invention water distributor is in the cloth water state
Fig. 2 is A point enlarged view of the present invention
Fig. 3 is the not structural representation of cloth water state of both sides of the present invention water distributor
Fig. 4 is vertical view of the present invention
Fig. 5 is B point enlarged view of the present invention
Fig. 6 is the guide rail wheel schematic diagram that there is corrugated guide rail side of the present invention
Fig. 7 is the front view of taking turns for the dull and stereotyped guide rail of distinguishing of low level in the middle of corrugated guide rail of the present invention
Fig. 8 is to be the front view of the guide rail wheel in high-order dull and stereotyped district in the middle of corrugated guide rail of the present invention
Fig. 9 is corrugated guide rail stretch-out view of the present invention
In figure:
The 1-transmission shaft; The 2-step-down gear; The 3-bearing support; The antitorque strongback of 4-; The 5-support; 6-guide rail wheel; 7-cloth tank; The 8-piston valve spindle; The 9-water distributor; The 10-water inlet pipe; 11-cloth water tube hose; The 12-buckle; 13-nylon guide way roller; The 14-valve support; 15-roller cross bar; The 16-guide path; The 17-web plate; The 18-joint bolt; The 19-roller; 20-roller fixed frame; The 21-standing bolt; The 22-self-locking out; The high-order dull and stereotyped district of 23-; The 24-zone of transition; The dull and stereotyped district of 25-low level.
Embodiment
Please see Figure 1-9.
First determine the recurrence interval according to the interior filtrate of water quality, reactor or the activated sludge concentration of pending water (feedwater or sewage), determine again the ripple amplitude size of guide rail wheel 6 and corrugated guide rail, and step-down gear 2 driving frequencies, then carry out guide rail wheel 6 prefabricated and step-down gear type selectings.
The object that test is processed is sewage, and the water distribution object is the hydrolytic tank that contains a large amount of active sludge.Cloth tank 7 diameters that adopt are 1400mm, the high 500mm of cloth tank 7, and useful volume is 0.46m
3The caliber of the water inlet pipe 10 of cloth tank 7 bottom centre is DN200, and the peripheral circumference of water inlet pipe 10 is provided with 18 water distributors 9, and the bore of water distributor 9 is DN40.All driving component are installed on cloth tank 7, its medium-height trestle 5 by two channel-section steels on cloth tank 7 tops with form with each two channel-section steels that are fixedly connected with cloth tank 7 outer walls that channel-section steel two ends are bolted, a whole set of water distributor is fixedly mounted on civil engineering water inlet corridor, and cloth water tube hose 11 adopts buckles 12 to be connected on water distributor 9.
First determine ripple amplitude (piston rod stroke) and recurrence interval according to corrugated guide rail stretch-out view shown in Figure 9, ripple amplitude be high-order dull and stereotyped district 23 (crests of ripple) to the vertical range in the dull and stereotyped district of low level 25 (troughs of ripple), the stroke on this vertical range and piston valve spindle 8 bottoms and water distributor 9 tops is identical.Recurrence interval is corrugated guide rail from high-order dull and stereotyped district 23 through zone of transition 24 to the dull and stereotyped district 25 of low level, then the horizontal throw of getting back to high-order dull and stereotyped district 23 ripples trajectory generation of process on the guide rail wheel side through zone of transition 24 is during as the recurrence interval.The quantity of recurrence interval is to require to select 2 according to the water distribution water yield in this embodiment, the horizontal throw in each district is identical simultaneously, 360 degree are launched to become in the side of guide rail wheel 6, angle corresponding to horizontal throw launched in the side of guide rail wheel 6 of each district is 45 degree (namely 45 degree are corresponding high-orderly dull and stereotypedly distinguishes 23, the 45 corresponding zone of transition 24 of degree, the 45 corresponding low level flat boards of degree distinguish 25,45 spend and cross 24 again, get back to high-order dull and stereotyped district 23, just in time 180 spend, claim 1 recurrence interval, the other 180 same recurrence intervals of degree are so corrugated guide rail is 2 recurrence intervals).Because the horizontal throw in each district is identical, if ripple amplitude is identical with the horizontal throw in each district, the rotation angle in corrugated guide rail each district should be 135 degree.
With the welding jail, side of this corrugated guide rail and guide rail wheel 6, then in the centre hole of the guide rail wheel 6 that has welded corrugated guide rail, transmission shaft 1 is installed.Transmission shaft 1 penetrates bearing support 3, and bearing support 3 use bolts are fixedly connected with it with support 5.Commercially available step-down gear 2 (comprising supporting motor) also is installed on the transmission shaft 1 above the bearing support 3 on support 5, and locks with self-locking out 22.Step-down gear 2 also is connected with support 5 by antitorque strongback 4, stablizes when the guide rail wheel 6 that is suspended to cloth tank 7 tops is rotated, and distribution performance is reliable.
Principle of work
Sewage enters cloth tank 7 by water inlet pipe 10, then enters water distributor 9, sprays downwards by the cloth water tube hose 11 that is connected with water distributor 9, enters the sludge reaction district.sewage flows into water distribution groove 7 in the process that flows out water distributor 9, guide rail wheel 6 is under the driving of step-down gear 2, rotate by the speed that water technology is formulated requirements such as the water distribution water yields, and the corrugated guide rail in roller 19 is from high-order dull and stereotyped district 23 process zone of transition 24 to the dull and stereotyped district 25 of low level, get back to again the walking of high-order dull and stereotyped district 23 circulation tracks through zone of transition 24, impel roller 19 to drive on piston valve spindle 8, lower movement, on piston valve spindle 8, the stroke of lower movement namely equals the stroke of the ripple amplitude of corrugated guide rail, the opening and closing action that has realized carrying out between piston valve spindle 8 and water distributor 9.Guide rail wheel 6 is in rotary course, when the high-order dull and stereotyped district 23 of corrugated guide rail contacts with roller 19, piston valve spindle 8 raises, namely whole process is opened water distributor 9, when the low level of corrugated guide rail dull and stereotyped district 25 contacts with roller 19, piston valve spindle 8 forces down until water distributor 9 whole process are closed, and when the zone of transition 24 of corrugated guide rail contacts with roller 19, is piston valve spindle 8 and closes or from being closed to the transitory stage of unlatching from being opened to.Considered the way of contact of employing scroll wheel in design, all friction pair materials adopt nylon and metallic contact with capable of reducing friction resistance.On the other hand, the design of corrugated guide rail can realize that water distributor 9 switches by pulse order water distribution and to reach water distribution even.By the speed adjustment of frequency transformer to step-down gear 2, make water distribution adjustable switching time, but the setting pulse water discharging time, can be from the opening and closing (machine is multi-control) of water distribution time and a water distribution position enterprising line number water distributor 9.
Claims (4)
1. rotary type pulse water distributor with corrugated guide rail, comprise cloth tank (7), and the water inlet pipe (10) of the bottom centre of cloth tank (7), the some water distributors (9) that are evenly arranged around water inlet pipe (10), it is characterized in that: the valve support (14) that the fixed quantity of cloth tank (7) inwall is identical with water distributor (9), valve support (14) one sides are offered guide path (16), valve support (14) upper, lower two horizontal planes are offered through hole, piston valve spindle (8) is installed in through hole, piston valve spindle (8) bottom and both medullary ray corresponding with water distributor (9) top overlaps, also be provided with the valve plug of elastomeric material in piston valve spindle (8) bottom and water distributor (9) contact part, piston valve spindle (8) upper end and roller cross bar (15) are fixed, the upper fixed nylon guide way roller (13) of roller cross bar (15), nylon guide way roller (13) are stuck in the guide path (16) of valve support (14) and move up and down along guide path (16), roller cross bar (15) is fixed with roller fixed frame (20), and two rollers (19) moving to clamp roll are installed in roller fixed frame (20), between two rollers (19), Matching installation has corrugated guide rail, and corrugated guide rail is cemented in guide rail and takes turns on (6) side, guide rail wheel (6) is connected with step-down gear (2) by transmission shaft (1), bearing support (3), bearing support (3) is connected with the support (5) on cloth tank (7) top, and step-down gear (2) also is connected with support (5) by antitorque strongback (4),
The shape of above-mentioned corrugated guide rail is comprised of the dull and stereotyped district of high-order dull and stereotyped district (23), zone of transition (24) and low level (25), and wherein the stroke on high-order dull and stereotyped district (23) vertical range of distinguishing (25) to the low level flat board and piston valve spindle (8) bottom and water distributor (9) top is identical.
2. a kind of rotary type pulse water distributor with corrugated guide rail according to claim 1, it is characterized in that: described corrugated guide rail is that ripple is from high-order dull and stereotyped (23) the process zone of transition (24) of distinguishing to the dull and stereotyped district of low level (25), when passing through again horizontal throw that zone of transition (24) gets back to high-order dull and stereotyped district (23) trajectory generation of process on the guide rail wheel side as the recurrence interval, the quantity of recurrence interval is 1, or 2, or 3, or 4, the horizontal throw in each district is identical or different simultaneously.
3. a kind of rotary type pulse water distributor with corrugated guide rail according to claim 1, it is characterized in that: the gap between two rollers (19) is that the thickness of corrugated guide rail increases by 2～4mm orbit gap more in addition.
4. a kind of rotary type pulse water distributor with corrugated guide rail according to claim 1 is characterized in that: described cloth tank (7) adopts stainless steel plate to make round basin shape tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100162952A CN102583728B (en) | 2012-01-18 | 2012-01-18 | Rotary type pulse water distributor with corrugated guide rail |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012100162952A CN102583728B (en) | 2012-01-18 | 2012-01-18 | Rotary type pulse water distributor with corrugated guide rail |
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| CN102583728A CN102583728A (en) | 2012-07-18 |
| CN102583728B true CN102583728B (en) | 2013-06-26 |
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Families Citing this family (2)
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| CN103241833B (en) * | 2013-05-17 | 2015-12-23 | 唐山中科格润环境技术有限公司 | A kind of pulse water distribution device for UASB and water distribution method |
| CN116573756B (en) * | 2023-07-13 | 2023-09-12 | 诸城市荣和机械有限公司 | Pulse type water distributor for sewage treatment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176839A (en) * | 1996-09-16 | 1998-03-25 | 阎洪波 | Pulsation settling tank water treatment equipment |
| CN2354952Y (en) * | 1998-11-05 | 1999-12-22 | 曾锦之 | Vortex water distributor |
| EP1939348A1 (en) * | 2006-12-27 | 2008-07-02 | FagorBrandt SAS | Device for dispensing a liquid product |
| CN201254491Y (en) * | 2008-07-22 | 2009-06-10 | 韩洪德 | Biochemical matching water installation |
| CN201704125U (en) * | 2010-04-30 | 2011-01-12 | 青岛银河环保股份有限公司 | Siphon type pulse water distributor and sewage treatment pool with the same |
| CN202415259U (en) * | 2012-01-18 | 2012-09-05 | 上海泓济环保工程有限公司 | Corrugated guide rail rotating pulse water distributor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0210504A (en) * | 1988-06-28 | 1990-01-16 | Matsushita Electric Ind Co Ltd | Magnetic recording method for angle modulating signal |
| JPH0910504A (en) * | 1995-06-30 | 1997-01-14 | Orion Mach Co Ltd | Liquid dispenser in liquid separator |
-
2012
- 2012-01-18 CN CN2012100162952A patent/CN102583728B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176839A (en) * | 1996-09-16 | 1998-03-25 | 阎洪波 | Pulsation settling tank water treatment equipment |
| CN2354952Y (en) * | 1998-11-05 | 1999-12-22 | 曾锦之 | Vortex water distributor |
| EP1939348A1 (en) * | 2006-12-27 | 2008-07-02 | FagorBrandt SAS | Device for dispensing a liquid product |
| CN201254491Y (en) * | 2008-07-22 | 2009-06-10 | 韩洪德 | Biochemical matching water installation |
| CN201704125U (en) * | 2010-04-30 | 2011-01-12 | 青岛银河环保股份有限公司 | Siphon type pulse water distributor and sewage treatment pool with the same |
| CN202415259U (en) * | 2012-01-18 | 2012-09-05 | 上海泓济环保工程有限公司 | Corrugated guide rail rotating pulse water distributor |
Non-Patent Citations (1)
| Title |
|---|
| 蒋克彬.虹吸式脉冲布水器的设计与应用.《中国给水排水》.2002,第18卷(第9期), * |
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Denomination of invention: Rotary type pulse water distributor with corrugated guide rail Effective date of registration: 20150119 Granted publication date: 20130626 Pledgee: Bank of Shanghai Limited by Share Ltd Shanghai branch of the FTA test area Pledgor: Shanghai Hongji Environmental Protection Engineering Co.,Ltd. Registration number: 2015310000001 |
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Date of cancellation: 20160516 Granted publication date: 20130626 Pledgee: Bank of Shanghai Limited by Share Ltd Shanghai branch of the FTA test area Pledgor: Shanghai Hongji Environmental Protection Engineering Co.,Ltd. Registration number: 2015310000001 |
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