CN117566917B - Constructed wetland blocking flushing device and method - Google Patents
Constructed wetland blocking flushing device and method Download PDFInfo
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- CN117566917B CN117566917B CN202311471108.4A CN202311471108A CN117566917B CN 117566917 B CN117566917 B CN 117566917B CN 202311471108 A CN202311471108 A CN 202311471108A CN 117566917 B CN117566917 B CN 117566917B
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- 238000011010 flushing procedure Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000000903 blocking effect Effects 0.000 title claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 381
- 238000005086 pumping Methods 0.000 claims abstract description 43
- 238000000746 purification Methods 0.000 claims abstract description 22
- 239000007921 spray Substances 0.000 claims abstract description 22
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000010865 sewage Substances 0.000 claims abstract description 10
- 238000005507 spraying Methods 0.000 claims description 48
- 238000010521 absorption reaction Methods 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 18
- 238000010992 reflux Methods 0.000 claims description 15
- 230000009471 action Effects 0.000 claims description 11
- 230000000670 limiting effect Effects 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000008213 purified water Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 239000000945 filler Substances 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 7
- 238000012856 packing Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 3
- 230000007480 spreading Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biotechnology (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
The invention provides a constructed wetland blockage flushing device and a method, comprising a mounting frame, a water supply pipe unit, a return pipe unit, a driving unit and a purification pumping unit; the return pipe unit is hoisted at the center of the mounting frame; the water supply pipe units are arranged in a plurality, are annularly arranged on the periphery of the return pipe unit, and form a flushing coverage area in the area surrounded by the water supply pipe units. The advantages are that: (1) Through its structural design, realized not digging out the packing under the condition to the wetland packing and wased, and need not stop the operation of wetland, reduced the cost to a certain extent. (2) Adopt the wetland filler flushing mode of every point position, when every point position is washed, the delivery pipe only sprays water towards the wet return direction to effectively suck away ponding and time through the wet return, prevent that sewage after the washing from spreading to other areas, this kind of mode is under the certain circumstances of water pressure, prescribes a limit to the flushing range, can guarantee the washing effect of every point position, improves flushing efficiency.
Description
Technical Field
The invention belongs to the technical field of artificial wetland, and particularly relates to an artificial wetland blocking flushing device and method.
Background
The constructed wetland is an artificially constructed, controllable and engineered wetland system, and is an artificial ecological system constructed by simulating natural wetland. The artificial wetland mainly comprises five parts of water body, matrix, aquatic plants, aerobic or anaerobic microorganism population and medium-low animals. Among them, aquatic plants, microorganisms and matrixes are the most basic components of the constructed wetland, and the purification function of the wetland is generally completed by means of triple synergies of physics, chemistry and biology in the system. The constructed wetland is generally classified into surface flow type and subsurface flow type constructed wetlands. Compared with the surface flow type constructed wetland, the subsurface flow type constructed wetland has larger hydraulic load and pollution load, has better removal effect on pollution indexes such as COD, SS and the like, and has less malodor and mosquito and fly breeding phenomena. The subsurface flow constructed wetland technology has the advantages of easy establishment and management, low investment, low construction and operation cost, good purification effect, favorability for ecological restoration and the like, has been widely valued at home and abroad since being applied, and is successfully applied to the treatment of various waste water.
However, as the constructed wetland is continuously applied, the problem of wetland blockage gradually emerges from the water surface, thereby influencing the popularization of the constructed wetland. The permeability of constructed wetland filler drops sharply after the jam, water passing ability reduces thereupon to lead to water purifying effect, play water effect poor and influence the normal operating of constructed wetland, prior art adopts the mode of changing the wetland material to handle generally, or digs out the filler and clear up, and the engineering volume is great and then leads to the cost higher, and the constructed wetland needs to stop the operation when carrying out the construction, and then causes inconvenience, consequently needs a constructed wetland to block up washing unit of solution above-mentioned problem.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a constructed wetland blocking flushing device and a method, which can effectively solve the problems.
The technical scheme adopted by the invention is as follows:
The invention provides an artificial wetland blockage flushing device which comprises a mounting frame (1), a water supply pipe unit (2), a return pipe unit (3), a driving unit (4) and a purification pumping unit (5);
The return pipe unit (3) is hoisted at the center of the mounting frame (1); the water supply pipe units (2) are arranged in a plurality, are annularly arranged on the periphery of the return pipe unit (3), and form a flushing coverage area in the area surrounded by the water supply pipe units (2);
The return pipe unit (3) comprises a return pipe (3-1) and a spiral pump rod (3-2); the spiral pump rod (3-2) is vertically arranged, the backflow pipe (3-1) is sleeved outside the spiral pump rod (3-2), and the backflow pipe (3-1) is arranged at different height positions and comprises wide-runner water blocking sections (3-1-1), water absorbing net sections (3-1-2) and narrow-runner water blocking sections (3-1-3) which are arranged at intervals;
Each water supply pipe unit (2) comprises a water supply pipe (2-1), an outer sleeve (2-2) and a water spraying structure (2-3); the outer sleeve (2-2) is fixed with the mounting frame (1), the water supply pipe (2-1) is arranged in the outer sleeve (2-2), and the water supply pipe (2-1) is provided with a water spraying structure (2-3) which faces the water absorption network sections (3-1-2) at a height position corresponding to each water absorption network section (3-1-2) and is used for spraying water towards the water absorption network sections (3-1-2);
the driving unit (4) is respectively connected with the spiral pump rod (3-2) and each water supply pipe (2-1) and is used for driving the spiral pump rod (3-2) and the water supply pipes (2-1) to rotate;
The water inlet end of the purification pumping unit (5) is communicated with the top reflux port of the reflux pipe (3-1); the water outlet end of the purification pumping unit (5) is communicated with the top water inlets of the water supply pipes (2-1).
Preferably, for the return pipe (3-1), the number of the water absorbing net sections (3-1-2) is two, namely an upper water absorbing net section and a lower water absorbing net section;
According to the direction from top to bottom, the water-blocking section (3-1-1) with wide flow passage, the upper water-absorbing net section, the water-blocking section (3-1-3) with narrow flow passage and the lower water-absorbing net section are respectively arranged.
Preferably, the inner diameters of the wide-runner water blocking section (3-1-1) and the water absorbing network section (3-1-2) are the same;
The inner diameter of the narrow-runner water-blocking section (3-1-3) is smaller than that of the wide-runner water-blocking section (3-1-1), when the spiral pump rod (3-2) rotates, water absorption force is generated in the narrow-runner water-blocking section (3-1-3), and water is further pumped into a pipe of the return pipe (3-1) along the water absorption network section (3-1-2).
Preferably, the driving unit (4) comprises a gear motor (4-1), a driven gear (4-2) and a driving gear (4-3);
the output end of the speed reducing motor (4-1) is connected with the top end of the spiral pump rod (3-2); the driving gear (4-3) is sleeved outside the spiral pump rod (3-2); the passive gear (4-2) is sleeved outside each water supply pipe (2-1); the driving gear (4-3) is meshed with the driven gear (4-2).
Preferably, the purifying and pumping unit (5) comprises a water storage tank (5-1), a water return pipe (5-2), a pumping pipe (5-3), a filter screen (5-4) and a high-pressure pump (5-5);
the middle part of the water storage tank (5-1) is provided with the filter screen (5-4); the upper water inlet end of the water storage tank (5-1) is communicated with the top reflux port of the reflux pipe (3-1) through the reflux pipe (5-2); the bottom water outlet end of the water storage tank (5-1) is communicated with the water inlet end of the high-pressure pump (5-5); the water outlet end of the high-pressure pump (5-5) is communicated with the water inlet end of the water pumping pipe (5-3); and each water outlet end of the water pumping pipe (5-3) is respectively communicated with the top water inlet of each water supply pipe (2-1).
Preferably, a rotary joint (2-1-1) is fixedly arranged at the top of the water supply pipe (2-1), and the rotary joint (2-1-1) is in sealing rotary connection with the water outlet end of the water pumping pipe (5-3).
Preferably, the water spraying structure (2-3) comprises: an outer fan-shaped channel (2-3-1), an inner flow channel (2-3-2) and a water spraying hole (2-3-3);
The water supply pipe (2-1) is provided with the water spraying holes (2-3-3) at the corresponding height position; the outer sleeve (2-2) is provided with an outer fan-shaped channel (2-3-1) communicated with the outer wall of the water supply pipe (2-1) in the direction towards the water absorption network section (3-1-2), and the outer fan-shaped channel (2-3-1) and the water spraying hole (2-3-3) are provided with the same height; the inner wall of the other side of the outer sleeve (2-2) opposite to the outer fan-shaped channel (2-3-1) is provided with the inner flow channel (2-3-2); the inner flow passage (2-3-2) is communicated with the outer fan-shaped passage (2-3-1), and the opening height of the inner flow passage (2-3-2) is the same as that of the water spraying hole (2-3-3).
Preferably, the central angle of the outer fan-shaped channel (2-3-1) is smaller than 180 degrees; the inner flow passage (2-3-2) is of a groove-shaped structure which is opened on the inner wall of the outer sleeve (2-2), and the depth of the inner flow passage is smaller than the wall thickness of the outer sleeve (2-2).
The invention also provides a flushing method of the constructed wetland blocking flushing device, which comprises the following steps:
Uniformly selecting a plurality of points in the constructed wetland to be treated, sequentially inserting the center of the constructed wetland blocking flushing device into the constructed wetland corresponding to each point, and performing a constructed wetland blocking flushing flow; thereby completing the blocking flushing of the whole constructed wetland;
for a single point location, the constructed wetland blockage flushing flow path carried out by the constructed wetland blockage flushing device comprises the following steps:
Step 1, inserting a water supply pipe unit (2) and a return pipe unit (3) of an artificial wetland blocking flushing device into the artificial wetland, so that the bottoms of the water supply pipe unit (2) and the return pipe unit (3) are close to the pool bottom of the artificial wetland;
Step 2, starting a driving unit (4) and a purifying pumping unit (5);
The driving unit (4) drives the spiral pump rod (3-2) of the return pipe unit (3) positioned at the center and the water supply pipe (2-1) of the water supply pipe unit (2) positioned at the periphery to synchronously rotate;
the high-pressure pump (5-5) of the purification pumping unit (5) works, and purified water filtered by the filter screen (5-4) in the water storage tank (5-1) is conveyed to each water supply pipe (2-1) through the pump water pipe (5-3);
in the rotation process of each water supply pipe (2-1), the gap sprays water to the direction of the return pipe (3-1), so that the flushing effect on the wetland area between the return pipe (3-1) and the water supply pipe (2-1) is realized;
sewage after flushing the wetland area sinks along the wetland area between the return pipe (3-1) and the water supply pipe (2-1); due to the rotation of the spiral pump rod (3-2) and the function of the narrow-runner water blocking section (3-1-3), negative pressure is formed in the return pipe (3-1), so that sinking sewage is pumped into the return pipe (3-1) and flows upwards along the return pipe (3-1), and finally flows back into the water storage tank (5-1) through the return pipe (5-2); after filtering and purifying through a filter screen (5-4) of the water storage tank (5-1), water is supplied to each water supply pipe (2-1) again, so that continuous utilization of water flow is realized, and a wetland area between the return pipe (3-1) and the water supply pipe (2-1) is continuously flushed.
Preferably, the clearance of each water supply pipe (2-1) sprays water to the direction of the return pipe (3-1) in the rotation process, so that the flushing effect on the wetland area between the return pipe (3-1) and the water supply pipe (2-1) is realized, and the flushing effect is specifically as follows:
The water supply pipe (2-1) continuously rotates in a 360-degree range, in the rotating process, when the water spraying hole (2-3-3) of the water supply pipe faces the outer fan-shaped channel (2-3-1), the water supply pipe (2-1) sprays water outwards from the water spraying hole (2-3-3), and on one hand, under the limiting effect of the outer fan-shaped channel (2-3-1), the water spraying hole (2-3-3) sprays water to form a fan-shaped area; the outer fan-shaped channel (2-3-1) faces the water absorbing net section (3-1-2), so that water sprayed by the water spraying holes (2-3-3) not only washes a wetland area between the return pipe (3-1) and the water supply pipe (2-1), but also prevents the water absorbing net section (3-1-2) from being blocked because the water is directly sprayed to the water absorbing net section (3-1-2); in the rotation process, when the water spraying hole (2-3-3) faces the inner runner (2-3-2), water sprayed by the water spraying hole (2-3-3) flows to the outer fan-shaped channel (2-3-1) through the inner runner (2-3-2) and finally flows outwards, and the inner runner (2-3-2) is used for discharging, so that the pressure process in the water supply pipe (2-1) is prevented, and the normal rotation of the water supply pipe (2-1) is ensured;
The water pumping method of the return pipe (3-1) comprises the following steps:
Under the rotation action of the spiral pump rod (3-2) in the return pipe (3-1), the external turnover ponding is sucked into the inner side of the return pipe (3-1) through the water absorption network section (3-1-2) and then flows back into the water storage tank (5-1).
The constructed wetland blocking flushing device and method provided by the invention have the following advantages:
(1) Through its structural design, realized not digging out the packing under the condition to the wetland packing and wased, and need not stop the operation of wetland, reduced the cost to a certain extent.
(2) Adopt the wetland filler flushing mode of every point position, when every point position is washed, the delivery pipe only sprays water towards the wet return direction to effectively suck away ponding and time through the wet return, prevent that sewage after the washing from spreading to other areas, this kind of mode is under the certain circumstances of water pressure, prescribes a limit to the flushing range, can guarantee the washing effect of every point position, improves flushing efficiency.
Drawings
FIG. 1 is a schematic diagram of a constructed wetland blocking and flushing device according to the present invention;
FIG. 2 is a schematic cross-sectional view of the outer sleeve outer fan-shaped channel part of the constructed wetland blocking flushing device according to the present invention;
fig. 3 is a schematic view of the usage state of the constructed wetland blocking flushing device of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the terms "upper/lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured/arranged," "coupled," "connected," and the like are to be construed broadly and include, for example, "connected," either fixedly, detachably, or integrally; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention provides a constructed wetland blocking flushing device and a method, which belong to the field of constructed wetland, wherein a driving unit and a purifying pumping unit work, the driving unit drives a water supply pipe to rotate, the purifying pumping unit supplies water to the water supply pipe, the water is sprayed outwards through a water spraying hole on the water supply pipe, meanwhile, under the limiting actions of the rotation of the water supply pipe and an outer fan-shaped channel, the water spraying hole sprays water to form a fan-shaped area, an inner runner discharges when the water spraying hole rotates to the inner side of an outer sleeve, and a plurality of water supply pipes jointly act to flush wetland filler between the water supply pipe and a return pipe; under the rotation action of the spiral pump rod, accumulated water is sucked into the water return pipe through the water suction net section, and then flows back to the purification pumping unit to be purified and then pumped to the water supply pipe, so that the constructed wetland is blocked and flushed.
Referring to fig. 1-3, the present invention provides a technical solution: the constructed wetland blockage flushing device comprises a mounting frame 1, a water supply pipe unit 2, a return pipe unit 3, a driving unit 4 and a purifying pumping unit 5;
The return pipe unit 3 is hoisted at the center of the mounting frame 1; the water supply pipe units 2 are arranged in a plurality, are arranged on the periphery of the return pipe unit 3 along an annular array shape, and form a flushing coverage area in the area surrounded by the water supply pipe units 2;
the return pipe unit 3 includes a return pipe 3-1 and a screw pump rod 3-2; the spiral pump rod 3-2 is vertically arranged, a return pipe 3-1 is sleeved outside the spiral pump rod 3-2, and the return pipe 3-1 is arranged at different height positions and comprises wide-runner water blocking sections 3-1-1, water absorbing network sections 3-1-2 and narrow-runner water blocking sections 3-1-3 which are arranged at intervals;
Each water supply pipe unit 2 comprises a water supply pipe 2-1, an outer sleeve 2-2 and a water spraying structure 2-3; the outer sleeve 2-2 is fixed with the mounting frame 1, a water supply pipe 2-1 is arranged in the outer sleeve 2-2, and the water supply pipe 2-1 is provided with a water spraying structure 2-3 which faces the water absorption network sections 3-1-2 at a height position corresponding to each water absorption network section 3-1-2 and is used for spraying water towards the water absorption network sections 3-1-2;
The driving unit 4 is respectively connected with the spiral pump rod 3-2 and each water supply pipe 2-1 and is used for driving the spiral pump rod 3-2 and the water supply pipe 2-1 to rotate;
the water inlet end of the purification pumping unit 5 is communicated with the top reflux port of the reflux pipe 3-1; the water outlet end of the purification pumping unit 5 is communicated with the top water inlets of the water supply pipes 2-1.
The following describes each structure of the present invention in detail:
(1) Return pipe 3-1
For the return pipe 3-1, as a specific embodiment, the number of the water absorbing net sections 3-1-2 is two, namely an upper water absorbing net section and a lower water absorbing net section;
According to the direction from top to bottom, the water-blocking sections are respectively a wide-runner water-blocking section 3-1-1, an upper water-absorbing net section, a narrow-runner water-blocking section 3-1-3 and a lower water-absorbing net section. Wherein, the inner diameters of the wide flow passage water blocking section 3-1-1 and the water absorbing net section 3-1-2 are the same; the inner diameter of the narrow-runner water-blocking section 3-1-3 is smaller than that of the wide-runner water-blocking section 3-1, when the spiral pump rod 3-2 rotates, water absorption force is generated in the narrow-runner water-blocking section 3-1-3, and then water is pumped into the pipe of the return pipe 3-1 along the water absorption network section 3-1-2.
Specifically, under the action of the rotation of the spiral pump rod, the lower water absorption net section absorbs accumulated water at the lower part upwards under the action of the spiral pump rod, and as the inner diameter of the wide-runner water blocking section 3-1-1 of the return pipe is larger than that of the narrow-runner water blocking section 3-1-3, accumulated water at the upper net section also enters the inner side of the upper water absorption net section and is then sucked into the return pipe, and then flows back to the purification pumping structure to be purified and then pumped to the pumping pipe, the blocking flushing of the constructed wetland is realized.
(2) Drive unit 4
The driving unit 4 comprises a gear motor 4-1, a driven gear 4-2 and a driving gear 4-3; the driven gear 4-2 and the driving gear 4-3 form a transmission structure;
the gear motor 4-1 is fixedly arranged on the mounting frame 1, and the output end of the gear motor is connected with the top end of the spiral pump rod 3-2; the driving gear 4-3 is sleeved outside the spiral pump rod 3-2; the passive gear 4-2 is sleeved outside each water supply pipe 2-1; the driving gear 4-3 is engaged with the driven gear 4-2. The gear motor 4-1 rotates to drive the driving gear 4-3 to rotate, and then drives the driven gear 4-2 to rotate.
(3) Purification pumping unit 5
The purification pumping unit 5 comprises a water storage tank 5-1, a water return pipe 5-2, a pumping pipe 5-3, a filter screen 5-4 and a high-pressure pump 5-5;
the middle part of the water storage tank 5-1 is provided with a filter screen 5-4; the upper water inlet end of the water storage tank 5-1 is communicated with the top reflux port of the reflux pipe 3-1 through the reflux pipe 5-2; the water outlet end at the bottom of the water storage tank 5-1 is communicated with the water inlet end of the high-pressure pump 5-5; the water outlet end of the high-pressure pump 5-5 is communicated with the water inlet end of the pump water pipe 5-3; the water outlet ends of the water pumping pipes 5-3 are respectively communicated with the top water inlets of the water supply pipes 2-1.
When the water flows back to the upper part of the water storage tank 5-1 through the water return pipe 5-2, the water is filtered by the filter screen 5-4 in the water storage tank 5-1 and then is pumped back to the water pumping pipe 5-3 through the high pressure pump 5-5, and in the invention, the filtering structure of the water storage tank 5-1 and the filter screen 5-4 can be replaced by other sewage treatment structures, such as a sedimentation tank and a pressurized filter membrane filtering structure.
The top of the water supply pipe 2-1 is fixedly provided with a rotary joint 2-1-1, and the rotary joint 2-1-1 is in sealed rotary connection with the water outlet end of the water pumping pipe 5-3, so that a rotatable structure of the water supply pipe 2-1 is realized.
(4) Water spraying structure 2-3 of water supply pipe 2-1
Referring to fig. 3, the water spraying structure 2-3 includes: an outer fan-shaped channel 2-3-1, an inner flow channel 2-3-2 and a water spraying hole 2-3-3;
The water supply pipe 2-1 is provided with water spray holes 2-3-3 at the corresponding height position; the outer sleeve 2-2 is provided with an outer fan-shaped channel 2-3-1 communicated with the outer wall of the water supply pipe 2-1 in the direction towards the water absorption net section 3-1-2, and the outer fan-shaped channel 2-3-1 is provided with water spraying holes 2-3-3 at the same height; an inner runner 2-3-2 is arranged on the inner wall of the other side of the outer sleeve 2-2 opposite to the outer fan-shaped channel 2-3-1; the inner runner 2-3-2 is communicated with the outer fan-shaped channel 2-3-1, and the inner runner 2-3-2 and the water spraying hole 2-3-3 are arranged at the same height. By arranging the inner runner 2-3-2, the water spraying hole 2-3-3 is prevented from being blocked by the inner side of the outer sleeve 2-2 when rotating to the inner side of the outer sleeve 2-2, so that the pressure in the water supply pipe 2-1 is prevented from being too high.
In particular, the central angle of the outer fan-shaped channel 2-3-1 is smaller than 180 degrees, so that the range of water flow sprayed by the water spraying holes 2-3-3 is limited, and the water flow is converged towards the side of the return pipe 2-3. The inner runner 2-3-2 is of a groove-shaped structure which is opened on the inner wall of the outer sleeve 2-2, the depth of the groove-shaped structure is smaller than the wall thickness of the outer sleeve 2-2, and when the water spray hole 2-3-3 faces the inner runner 2-3-2, water flow is guided by the inner runner 2-3-2 to be discharged from the outer fan-shaped channel 2-3-1, so that the drainage discharge of the water flow of the water spray hole 2-3-3 is realized.
The invention also provides a flushing method of the constructed wetland blocking flushing device, which comprises the following steps:
Uniformly selecting a plurality of points in the constructed wetland to be treated, sequentially inserting the center of the constructed wetland blocking flushing device into the constructed wetland corresponding to each point, and performing a constructed wetland blocking flushing flow; thereby completing the blocking flushing of the whole constructed wetland;
for a single point location, the constructed wetland blockage flushing flow path carried out by the constructed wetland blockage flushing device comprises the following steps:
Step 1, inserting a water supply pipe unit 2 and a return pipe unit 3 of an artificial wetland blocking flushing device into the artificial wetland, so that the bottoms of the water supply pipe unit 2 and the return pipe unit 3 are close to the pool bottom of the artificial wetland;
step 2, starting the driving unit 4 and the purifying pumping unit 5;
The driving unit 4 drives the spiral pump rod 3-2 of the return pipe unit 3 positioned at the center and the water supply pipe 2-1 of the water supply pipe unit 2 positioned at the periphery to synchronously rotate;
The high-pressure pump 5-5 of the purification pumping unit 5 works, and purified water filtered by the filter screen 5-4 in the water storage tank 5-1 is conveyed to each water supply pipe 2-1 through the pump water pipe 5-3;
In the rotation process of each water supply pipe 2-1, the gap sprays water to the direction of the return pipe 3-1, so that the flushing effect on the wetland area between the return pipe 3-1 and the water supply pipe 2-1 is realized; specifically, the water supply pipe 2-1 continuously rotates in 360 degrees, and in the rotation process, when the water spraying hole 2-3-3 of the water supply pipe faces to the outer fan-shaped channel 2-3-1, the water supply pipe 2-1 sprays water outwards from the water spraying hole 2-3-3, and on one hand, under the limiting effect of the outer fan-shaped channel 2-3-1, the water spraying hole 2-3 sprays water to form a fan-shaped area; the outer fan-shaped channel 2-3-1 faces the water absorbing net section 3-1-2, so that water sprayed by the water spraying holes 2-3-3 washes a wetland area between the return pipe 3-1 and the water supply pipe 2-1, and the water flow is directly sprayed to the water absorbing net section 3-1-2, so that the water absorbing net section 3-1-2 is prevented from being blocked; in the rotation process, when the water spray hole 2-3-3 of the water spray hole faces the inner runner 2-3-2, water sprayed by the water spray hole 2-3-3 flows to the outer fan-shaped channel 2-3-1 through the inner runner 2-3-2 and finally flows outwards, and the water is discharged through the inner runner 2-3-2, so that the pressure process in the water supply pipe 2-1 is prevented and the normal rotation of the water supply pipe 2-1 is ensured;
The sewage after flushing the wetland area sinks along the wetland area between the return pipe 3-1 and the water supply pipe 2-1; due to the rotation of the spiral pump rod 3-2 and the function of the narrow-runner water blocking section 3-1-3, negative pressure is formed in the return pipe 3-1, so that sinking sewage is pumped into the return pipe 3-1 and flows upwards along the return pipe 3-1, and finally flows back into the water storage tank 5-1 through the return pipe 5-2; after filtering and purifying through the filter screen 5-4 of the water storage tank 5-1, water is supplied to each water supply pipe 2-1 again, so that continuous water flow utilization is realized, and the wetland area between the return pipe 3-1 and the water supply pipe 2-1 is continuously flushed.
The water pumping method of the return pipe 3-1 specifically comprises the following steps:
Under the rotation action of the spiral pump rod 3-2 in the return pipe 3-1, the outside turnover accumulated water is sucked into the inner side of the return pipe 3-1 through the water absorption net section 3-1-2 and then flows back into the water storage tank 5-1.
All electric parts and the adaptive power supply are connected through wires by the person skilled in the art, and a proper controller is selected according to actual conditions so as to meet control requirements, specific connection and control sequence, and the electric connection is completed by referring to the following working principles in the working sequence among the electric parts, wherein the detailed connection means are known in the art, and the following main description of the working principles and processes is omitted.
In this embodiment:
during operation, the mounting frame 1 is mounted on a small arm of a mobile device such as an on-water excavator, then the water supply pipe 2-1 and the return pipe 3-1 are inserted into the constructed wetland, the gear motor 4-1 and the purification pumping structure work, the gear motor 4-1 works to drive the water supply pipe 2-1 to rotate through the transmission structure, the purification pumping structure supplies water to the water supply pipe 2-1, then the water is sprayed outwards through the water spraying holes 2-3-3 on the water supply pipe 2-1, meanwhile, under the limiting action of the rotation of the water supply pipe 2-1 and the outer fan-shaped channel 2-3-1, the water spraying holes 2-3-3 spray water to form a fan-shaped area, the inner flow channel 2-3-2 discharges water when the water spraying holes 2-3-3 rotate to the inner side of the outer sleeve pipe 2-2, then the combined action of the water supply pipes 2-1 realizes flushing of filler on the inner side (namely the area between the water supply pipe and the return pipe) of the water supply pipe, and then under the rotation action of the spiral pump rod, the accumulated water is sucked to the return pipe 3-1 through the water sucking section, and then flows back to the purification pumping structure to the water supply pipe 2-1, so as to form circulation.
The invention provides an artificial wetland blocking and flushing device, which has the following beneficial effects:
(1) Through its structural design, realized not digging out the packing under the condition to the wetland packing and wased, and need not stop the operation of wetland, reduced the cost to a certain extent.
(2) Adopt the wetland filler flushing mode of every point position, when every point position is washed, the delivery pipe only sprays water towards the wet return direction to effectively suck away ponding and time through the wet return, prevent that sewage after the washing from spreading to other areas, this kind of mode is under the certain circumstances of water pressure, prescribes a limit to the flushing range, can guarantee the washing effect of every point position, improves flushing efficiency.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The term "comprising" an element defined by the term "comprising" does not exclude the presence of other identical elements in a process, method, article or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The constructed wetland blockage flushing device is characterized by comprising a mounting frame (1), a water supply pipe unit (2), a return pipe unit (3), a driving unit (4) and a purification pumping unit (5);
The return pipe unit (3) is hoisted at the center of the mounting frame (1); the water supply pipe units (2) are arranged in a plurality, are annularly arranged on the periphery of the return pipe unit (3), and form a flushing coverage area in the area surrounded by the water supply pipe units (2);
The return pipe unit (3) comprises a return pipe (3-1) and a spiral pump rod (3-2); the spiral pump rod (3-2) is vertically arranged, the backflow pipe (3-1) is sleeved outside the spiral pump rod (3-2), and the backflow pipe (3-1) is arranged at different height positions and comprises wide-runner water blocking sections (3-1-1), water absorbing net sections (3-1-2) and narrow-runner water blocking sections (3-1-3) which are arranged at intervals;
Each water supply pipe unit (2) comprises a water supply pipe (2-1), an outer sleeve (2-2) and a water spraying structure (2-3); the outer sleeve (2-2) is fixed with the mounting frame (1), the water supply pipe (2-1) is arranged in the outer sleeve (2-2), and the water supply pipe (2-1) is provided with a water spraying structure (2-3) which faces the water absorption network sections (3-1-2) at a height position corresponding to each water absorption network section (3-1-2) and is used for spraying water towards the water absorption network sections (3-1-2);
the driving unit (4) is respectively connected with the spiral pump rod (3-2) and each water supply pipe (2-1) and is used for driving the spiral pump rod (3-2) and the water supply pipes (2-1) to rotate;
The water inlet end of the purification pumping unit (5) is communicated with the top reflux port of the reflux pipe (3-1); the water outlet end of the purification pumping unit (5) is communicated with the top water inlets of the water supply pipes (2-1).
2. An artificial wetland blocking flushing device according to claim 1, wherein for said return pipe (3-1), the number of water absorbing net sections (3-1-2) is two, an upper water absorbing net section and a lower water absorbing net section;
According to the direction from top to bottom, the water-blocking section (3-1-1) with wide flow passage, the upper water-absorbing net section, the water-blocking section (3-1-3) with narrow flow passage and the lower water-absorbing net section are respectively arranged.
3. The constructed wetland blockage flushing device according to claim 1, wherein the inner diameters of the wide-runner water blocking section (3-1-1) and the water absorbing net section (3-1-2) are the same;
The inner diameter of the narrow-runner water-blocking section (3-1-3) is smaller than that of the wide-runner water-blocking section (3-1-1), when the spiral pump rod (3-2) rotates, water absorption force is generated in the narrow-runner water-blocking section (3-1-3), and water is further pumped into a pipe of the return pipe (3-1) along the water absorption network section (3-1-2).
4. An artificial wetland blockage flushing device according to claim 1, wherein the driving unit (4) comprises a gear motor (4-1), a driven gear (4-2) and a driving gear (4-3);
the output end of the speed reducing motor (4-1) is connected with the top end of the spiral pump rod (3-2); the driving gear (4-3) is sleeved outside the spiral pump rod (3-2); the passive gear (4-2) is sleeved outside each water supply pipe (2-1); the driving gear (4-3) is meshed with the driven gear (4-2).
5. The constructed wetland blockage flushing device according to claim 1, wherein the purification pumping unit (5) comprises a water storage tank (5-1), a water return pipe (5-2), a water pumping pipe (5-3), a filter screen (5-4) and a high pressure pump (5-5);
the middle part of the water storage tank (5-1) is provided with the filter screen (5-4); the upper water inlet end of the water storage tank (5-1) is communicated with the top reflux port of the reflux pipe (3-1) through the reflux pipe (5-2); the bottom water outlet end of the water storage tank (5-1) is communicated with the water inlet end of the high-pressure pump (5-5); the water outlet end of the high-pressure pump (5-5) is communicated with the water inlet end of the water pumping pipe (5-3); and each water outlet end of the water pumping pipe (5-3) is respectively communicated with the top water inlet of each water supply pipe (2-1).
6. The constructed wetland blocking flushing device according to claim 5, wherein a rotary joint (2-1-1) is fixedly installed at the top of the water supply pipe (2-1), and the rotary joint (2-1-1) is in sealing and rotating connection with the water outlet end of the water pumping pipe (5-3).
7. An artificial wetland plugging flushing device according to claim 1, wherein said water spraying structure (2-3) comprises: an outer fan-shaped channel (2-3-1), an inner flow channel (2-3-2) and a water spraying hole (2-3-3);
The water supply pipe (2-1) is provided with the water spraying holes (2-3-3) at the corresponding height position; the outer sleeve (2-2) is provided with an outer fan-shaped channel (2-3-1) communicated with the outer wall of the water supply pipe (2-1) in the direction towards the water absorption network section (3-1-2), and the outer fan-shaped channel (2-3-1) and the water spraying hole (2-3-3) are provided with the same height; the inner wall of the other side of the outer sleeve (2-2) opposite to the outer fan-shaped channel (2-3-1) is provided with the inner flow channel (2-3-2); the inner flow passage (2-3-2) is communicated with the outer fan-shaped passage (2-3-1), and the opening height of the inner flow passage (2-3-2) is the same as that of the water spraying hole (2-3-3).
8. An artificial wetland plugging flushing device according to claim 7, wherein the central angle of said outer fan-shaped channel (2-3-1) is less than 180 degrees; the inner flow passage (2-3-2) is of a groove-shaped structure which is opened on the inner wall of the outer sleeve (2-2), and the depth of the inner flow passage is smaller than the wall thickness of the outer sleeve (2-2).
9. A method of flushing a constructed wetland plugging flushing device according to any one of claims 1 to 8, comprising the steps of:
Uniformly selecting a plurality of points in the constructed wetland to be treated, sequentially inserting the center of the constructed wetland blocking flushing device into the constructed wetland corresponding to each point, and performing a constructed wetland blocking flushing flow; thereby completing the blocking flushing of the whole constructed wetland;
for a single point location, the constructed wetland blockage flushing flow path carried out by the constructed wetland blockage flushing device comprises the following steps:
Step 1, inserting a water supply pipe unit (2) and a return pipe unit (3) of an artificial wetland blocking flushing device into the artificial wetland, so that the bottoms of the water supply pipe unit (2) and the return pipe unit (3) are close to the pool bottom of the artificial wetland;
Step 2, starting a driving unit (4) and a purifying pumping unit (5);
The driving unit (4) drives the spiral pump rod (3-2) of the return pipe unit (3) positioned at the center and the water supply pipe (2-1) of the water supply pipe unit (2) positioned at the periphery to synchronously rotate;
the high-pressure pump (5-5) of the purification pumping unit (5) works, and purified water filtered by the filter screen (5-4) in the water storage tank (5-1) is conveyed to each water supply pipe (2-1) through the pump water pipe (5-3);
in the rotation process of each water supply pipe (2-1), the gap sprays water to the direction of the return pipe (3-1), so that the flushing effect on the wetland area between the return pipe (3-1) and the water supply pipe (2-1) is realized;
sewage after flushing the wetland area sinks along the wetland area between the return pipe (3-1) and the water supply pipe (2-1); due to the rotation of the spiral pump rod (3-2) and the function of the narrow-runner water blocking section (3-1-3), negative pressure is formed in the return pipe (3-1), so that sinking sewage is pumped into the return pipe (3-1) and flows upwards along the return pipe (3-1), and finally flows back into the water storage tank (5-1) through the return pipe (5-2); after filtering and purifying through a filter screen (5-4) of the water storage tank (5-1), water is supplied to each water supply pipe (2-1) again, so that continuous utilization of water flow is realized, and a wetland area between the return pipe (3-1) and the water supply pipe (2-1) is continuously flushed.
10. The flushing method of an artificial wetland blocking flushing device according to claim 9, wherein the gap of each water supply pipe (2-1) sprays water to the direction of the return pipe (3-1) during the rotation process, thereby realizing the flushing effect on the wetland area between the return pipe (3-1) and the water supply pipe (2-1), specifically comprising:
The water supply pipe (2-1) continuously rotates in a 360-degree range, in the rotating process, when the water spraying hole (2-3-3) of the water supply pipe faces the outer fan-shaped channel (2-3-1), the water supply pipe (2-1) sprays water outwards from the water spraying hole (2-3-3), and on one hand, under the limiting effect of the outer fan-shaped channel (2-3-1), the water spraying hole (2-3-3) sprays water to form a fan-shaped area; the outer fan-shaped channel (2-3-1) faces the water absorbing net section (3-1-2), so that water sprayed by the water spraying holes (2-3-3) not only washes a wetland area between the return pipe (3-1) and the water supply pipe (2-1), but also prevents the water absorbing net section (3-1-2) from being blocked because the water is directly sprayed to the water absorbing net section (3-1-2); in the rotation process, when the water spraying hole (2-3-3) faces the inner runner (2-3-2), water sprayed by the water spraying hole (2-3-3) flows to the outer fan-shaped channel (2-3-1) through the inner runner (2-3-2) and finally flows outwards, and the inner runner (2-3-2) is used for discharging, so that the pressure process in the water supply pipe (2-1) is prevented, and the normal rotation of the water supply pipe (2-1) is ensured;
The water pumping method of the return pipe (3-1) comprises the following steps:
Under the rotation action of the spiral pump rod (3-2) in the return pipe (3-1), the external turnover ponding is sucked into the inner side of the return pipe (3-1) through the water absorption network section (3-1-2) and then flows back into the water storage tank (5-1).
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| CN105753165A (en) * | 2016-04-25 | 2016-07-13 | 农业部沼气科学研究所 | Anti-blocking denitrification wetland structure and treatment method thereof |
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| CN116395833A (en) * | 2023-04-19 | 2023-07-07 | 生态环境部土壤与农业农村生态环境监管技术中心 | Constructed wetland blocking positioning and relieving device and method based on water flow change |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113955905A (en) * | 2021-11-23 | 2022-01-21 | 江西省生态环境科学研究与规划院 | Floating island type constructed wetland treatment system based on lake center platform |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101891263A (en) * | 2010-07-02 | 2010-11-24 | 北京东寰天纬工程技术有限公司 | Continuously washing sand filtering device with flow-stabilizing and sand-settling functions |
| CN105753165A (en) * | 2016-04-25 | 2016-07-13 | 农业部沼气科学研究所 | Anti-blocking denitrification wetland structure and treatment method thereof |
| CN109734194A (en) * | 2019-03-12 | 2019-05-10 | 孙志华 | The subsurface flow constructed wetland system of anti-clogging and ventilation |
| CN116395833A (en) * | 2023-04-19 | 2023-07-07 | 生态环境部土壤与农业农村生态环境监管技术中心 | Constructed wetland blocking positioning and relieving device and method based on water flow change |
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