CN113802666A - Channel quantitative water distribution device and water distribution method thereof - Google Patents
Channel quantitative water distribution device and water distribution method thereof Download PDFInfo
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- CN113802666A CN113802666A CN202111215894.2A CN202111215894A CN113802666A CN 113802666 A CN113802666 A CN 113802666A CN 202111215894 A CN202111215894 A CN 202111215894A CN 113802666 A CN113802666 A CN 113802666A
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/046—Open sewage channels
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
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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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- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a channel quantitative water distribution device and a water distribution method thereof. The water supply channel is internally provided with a rotating wheel and a transferring channel, the rotating wheel is provided with a water bucket, and the transferring channel is connected with the water treatment unit; the top of the rotating wheel is provided with a rotating wheel synchronous gear which is meshed with the gear on the transmission rod; the middle of the rotating wheel is provided with a central cylinder; the water bucket is provided with a water bucket opening. The system can realize uniform water distribution among the cell bodies, and can also realize quantitative water distribution of different cell bodies by adjusting the gear tooth number of the rotating wheel, the volume of the water buckets, the quantity of the water buckets and the like. The rotating wheels can be driven by a variable-frequency speed-regulating motor and a gearbox to drive the transmission rod, and can also be driven by channel water inlet kinetic energy, and the rotating speed of the transmission rod needs to be controllable no matter what way the driving is carried out, so that the quantitative transmission of each rotating wheel in the system is realized.
Description
Technical Field
The invention relates to the technical field of water distribution, in particular to a method for realizing channel quantitative water distribution by arranging a quantitative water distribution device in a channel.
Background
In a water treatment facility, channel water distribution is a common water distribution mode, and if water distribution is not uniform, hydraulic loads of different treatment units are different, so that the treatment effect is influenced. Due to the fact that the flowing of water in the channel has a hydraulic gradient, the realization of multi-point uniform water distribution or quantitative water distribution in a long channel is a technical problem. At present, the accuracy of channel multi-point water distribution uniformity and quantitative water distribution is improved through the forms of setting an adjustable weir height water distribution weir, a lower opening weir gate, gate holes with different quantities, installing a flowmeter, a valve and the like, but the device is complex to operate, and certain problems still exist in the aspects of water distribution uniformity and accuracy. To this end, researchers have proposed some new types of water distribution systems.
For example, the chinese patent with application number 202110503222.5 relates to a uniform water distribution system for long-distance subsurface wetland channels, which communicates with a plurality of water inlet bell mouths through different channels to realize quantitative water distribution, the water distribution ratio of each channel is the same as the number ratio of the corresponding bell mouths, and the specifications and elevations of all the bell mouths are the same, that is, the quantitative water distribution is realized at the inlet by controlling the length of the water inlet weir of each channel. The above patent is suitable for projects such as artificial wetlands with large and abundant construction land, the plane and longitudinal occupied area is large, and the water distribution proportion of each channel is difficult to change after the water distribution system is built.
If the Chinese patent with the application number of 201820421249.3 relates to a constant-pressure small-water-head uniform water distribution system facility, the water flow speed in a channel is reduced by arranging a large water passing section first-stage water distribution open channel, the water surface gradient is reduced as much as possible, so that the uniform water distribution of a long open channel is improved, and the first-stage water distribution open channel is connected with a second-stage water distribution open channel by adopting a threaded pipe with adjustable height, so that the uniform water distribution is favorably ensured. The above patent needs to construct a large-area primary water distribution channel, needs a large drop height, and has large energy loss.
For example, the chinese patent with application number 201910414320.4 relates to a round pump station water collecting tank with a uniform water distribution device, which is characterized in that a horizontal guide plate and a longitudinal guide plate which are vertically and crossly arranged and a multi-layer annular pressing plate which is horizontally arranged are used to uniformly distribute water upwards and spread water around, so as to homogenize the flow velocity distribution of each water inlet flow channel, improve the inflow condition of a water pump and ensure the safe and efficient operation of the water pump. The above patent is applicable to the scene of circumference distribution, and must move from bottom to top, and the water yield distribution effect of equidirectional not is influenced by the volume of water greatly.
In order to solve the problems, the invention particularly provides a channel quantitative water distribution device and a water distribution method thereof.
Disclosure of Invention
The invention provides a channel quantitative water distribution device and a water distribution method thereof, which can realize uniform water distribution or quantitative water distribution to different water treatment units by a longer channel, thereby improving the system stability and ensuring that the treatment units operate according to the design conditions.
In order to achieve the purpose, the invention adopts the following technical scheme:
a channel quantitative water distribution device comprises a water supply channel 1, a water treatment unit 2, a runner 3 and a transfer channel 4.
The water supply channel 1 is internally provided with a rotating wheel 3 and a transferring channel 4, the rotating wheel 3 is provided with a water bucket 8, and the transferring channel 4 is connected with the water treatment unit 2; the top of the rotating wheel 3 is provided with a rotating wheel synchronous gear 5, and the rotating wheel synchronous gear 5 is meshed with a gear on the transmission rod 6; the middle of the rotating wheel 3 is provided with a central cylinder 7; the water bucket 8 is provided with a water bucket opening 9.
When a runner 3 rotates to enable an opening of a water bucket 8 to be positioned below the horizontal plane of a water supply channel 1, water in the water supply channel 1 enters the water bucket 8 from a water bucket opening 9, and air in the water bucket 8 is exhausted through an exhaust hole in a central cylinder 7; when the water bucket 8 rotates to a position above the water surface, water in the water bucket 8 flows out from the water bucket opening 9, falls into the transfer channel 4 and then flows into the water treatment unit 2, so that the water is transferred from the water supply channel 1 to the water treatment unit 2; the similar system is arranged at the interface of other water treatment units 2 and the water supply channel 1, each rotating wheel 3 keeps the same rotating speed through a rotating wheel synchronous gear 5 and a transmission rod 6, and the lowest point of a central cylinder 7 of each rotating wheel 3 is positioned below the water surface of the water supply channel 1, so that a water bucket 8 can be completely immersed below the water surface.
Further, when each water treatment unit 2 distributes water in equal quantity, the rotating wheels 3 of the quantitative water distribution devices of each channel have the same size and number and the same rotating speed; when the water treatment units 2 are used for distributing water in proportion, the water distribution is realized by adjusting the number of gear teeth of the corresponding rotating wheel 3 of each water treatment unit 2, the volume of the water buckets and the number of the water buckets.
Furthermore, the inner ring of the rotating wheel 3 is provided with an exhaust pipeline, so that air in the water bucket can be conveniently exhausted when the rotating wheel is immersed.
Further, if the water level at the end of the water supply channel is low, the water bucket is ensured to be completely submerged below the water level by increasing the gradient of the bottom of the water supply channel 1 or increasing the diameter of the rotating wheel.
Further, the rotating wheel 3 drives the transmission rod to drive through a variable frequency speed regulating motor and a gearbox, or drives by channel water inlet kinetic energy, and no matter what way the driving is, the rotating speed of the transmission rod 6 needs to be ensured to be controllable, so that the quantitative distribution of water quantity is realized.
Further, when the runner 3 breaks down or the runner cannot completely transmit water in the water supply channel 1 due to the increase of the water amount, the side wall of the water transmission channel 4 is provided with an opening at a certain height, so that the water automatically enters each water treatment unit 2 after the liquid level in the water supply channel 1 rises.
Further, the water in the water supply channel is quantitatively delivered to the water treatment unit through a runner and a transfer channel provided with a bucket 8.
Further, the lowest point of the central cylinder 7 of each runner 3 is positioned below the water surface of the water supply channel 1, so that each bucket 8 of each runner 3 can be completely submerged below the water surface.
Furthermore, the central cylinder 7 is internally provided with exhaust holes which are opened when the water bucket is immersed below the horizontal plane, and air in the water bucket 8 can be exhausted through the air holes after water enters the water bucket, so that the water can rapidly enter the water bucket 8; when the water bucket 8 rotates to a position above the water surface, the exhaust holes are closed, and water cannot flow out of the exhaust holes.
Further, when the bucket 8 rotates to a position above the water surface, the water in the bucket 8 flows out from the bucket opening, falls into the transfer channel, and flows into the water treatment unit 2. Through the linkage of the synchronous gear of the rotating wheel which is coaxial with the rotating wheel 3 and the transmission rod, the rotating wheels corresponding to the water treatment units are ensured to keep the same rotating speed, and the water inflow of the water treatment units is the same under the condition that the sizes of the rotating wheels are the same and the water inflow of the rotating wheels is ensured to be consistent.
Furthermore, the linkage between the rotating wheels 3 is realized through a transmission chain, a belt, a gear set and the like.
Compared with the prior art, the system can realize uniform water distribution among the cell bodies, and can also realize quantitative water distribution of different cell bodies by adjusting the gear tooth number of the rotating wheel, the volume of the water buckets, the quantity of the water buckets and other modes. The rotating wheels can be driven by a variable-frequency speed-regulating motor and a gearbox to drive the transmission rod, and can also be driven by channel water inlet kinetic energy, and the rotating speed of the transmission rod needs to be controllable no matter what way the driving is carried out, so that the quantitative transmission of each rotating wheel in the system is realized. If the water level at the tail end of the water supply channel is lower, the water bucket can be ensured to be completely submerged below the water level by increasing the gradient of the bottom of the water supply channel or increasing the diameter of the rotating wheel. When the runner system fails or the runner system cannot completely transmit water in the water supply channel due to the increase of the water amount, the side wall of the water supply channel is provided with the opening at a certain height, so that the liquid level in the water supply channel can be ensured to automatically enter each water treatment unit after rising.
Drawings
Fig. 1 is a plan view of a channel water metering and distributing device.
FIG. 2 is a cross-sectional view taken along line A-A of the apparatus for quantitatively distributing water in a canal.
FIG. 3 is a sectional view taken along line B-B of the apparatus for quantitatively distributing water in the canal.
In the figure: 1. the water treatment system comprises a water supply channel, 2. a water treatment unit, 3. a rotating wheel, 4. a transfer channel, 5. a rotating wheel synchronous gear, 6. a transmission rod, 7. a central cylinder, 8. a water bucket and 9. a water bucket opening.
Detailed Description
The application and implementation of the device according to the invention will be further described with reference to the drawings, but the scope of protection of the invention is not limited thereto.
In a water treatment facility, in order to meter water to a water treatment unit 2, a runner 3 is provided at an appropriate position at the junction of a water supply channel 1 and the water treatment unit 2, the runner 3 being rotatable about a horizontal axis perpendicular to the flow direction of the water supply channel.
When the rotating wheel 3 rotates to enable the water bucket 8 and the opening of the water bucket to be immersed below the water surface of the water supply channel 1, water enters the water bucket from the opening of the water bucket, and air in the water bucket is exhausted through the exhaust hole in the central cylinder; when the water bucket rotates to a position above the water surface, water in the water bucket flows out from the opening of the water bucket and falls into the transfer canal 4.
The transfer channel 4 is a water channel with a T-shaped structure, the transverse edge of the transfer channel is parallel to the upper surface of the rotating wheel 3, the upper edge of the transverse edge of the transfer channel is positioned below the axis of the rotating wheel 3, the distance between the transverse edge and the upper surface of the rotating wheel 3 is 5-20 cm, the top surface of the transfer channel is not covered, the bottom surface of the transfer channel inclines towards the water treatment unit 2, the gradient is 3-10 degrees, when the water bucket 8 rotates to a position above the water surface, water in the water bucket 8 flows out by means of gravity, enters the transverse edge of the transfer channel, then flows in the transfer channel 4, and falls into the water treatment unit 2.
The rotating wheel 3 is of a concentric circular truncated cone structure, the upper surface and the lower surface of the rotating wheel 3 are perpendicular to the bottom surface of the water supply channel 1, the inner side wall and the outer side wall of the rotating wheel are closed, the upper surface of the rotating wheel is provided with a hole, the lower surface of the rotating wheel is closed, and the upper surface of the rotating wheel faces one side of the water treatment unit 2.
In one embodiment, 8 partition plates are symmetrically arranged in the concentric circular truncated cone of the rotating wheel 3 to divide the rotating wheel into 8 independent spaces, the extension line of each partition plate penetrates through the axis of the concentric circular truncated cone, the upper surface of the rotating wheel is divided into 8 sectors by the 8 partition plates, the central angle of each sector is 45 degrees, each sector opening is blocked by 1 sector sealing plate with the central angle of 22.5 degrees to form a half area, one edge of each sector sealing plate is overlapped with the edge of each partition plate, the enclosed space forms 8 water hoppers 8, and the sectors which are not blocked form 8 water hopper openings. The concentric circular truncated cone of the rotating wheel 3 consists of a large circular truncated cone and a small circular truncated cone, the radius of the bottom surface of the large circular truncated cone is 1.0m, the radius of the top surface of the large circular truncated cone is 0.9m, and the height of the large circular truncated cone is 0.8 m; the radius of the bottom surface of the small round table is 0.5m, the radius of the top surface of the small round table is 0.4m, the height of the small round table is 0.8m, and the total volume of the concentric round table of the rotating wheel 3 is 1.76m3The total volume of 8 water buckets 8 isOne half of the total volume of the concentric circular truncated cones of the rotating wheel, namely 1.76/2 is 0.88m3This is the amount of water that can be transported per revolution of the rotor 3. If the transfusion is 1 ten thousand meters3Amount of water/d (0.116 m)3S), the time required for the rotating wheel 3 to rotate for one circle is 7.6s at 0.88/0.116.
In another embodiment, 10 partition plates are symmetrically arranged in the concentric circular truncated cone of the rotating wheel 3 to divide the rotating wheel into 10 independent spaces, the extension line of each partition plate passes through the axis of the concentric circular truncated cone, the upper surface of the rotating wheel is divided into 10 sectors by the 10 partition plates, the central angle of each sector is 36 degrees, each sector opening is sealed by 1 sector sealing plate with the central angle of 24 degrees to form 2/3 area, one side of each sector sealing plate is overlapped with the side of each partition plate, the enclosed space forms 10 water hoppers 8, and the sectors which are not sealed form 10 hopper openings. The concentric circular truncated cone of the rotating wheel 3 consists of a large circular truncated cone and a small circular truncated cone, the radius of the bottom surface of the large circular truncated cone is 1.2m, the radius of the top surface of the large circular truncated cone is 1.0m, and the height of the large circular truncated cone is 0.7 m; the radius of the bottom surface of the small round table is 0.8m, the radius of the top surface of the small round table is 0.6m, and the height of the small round table is 0.7m, so that the total volume of the concentric round table of the rotating wheel 3 is 1.59m3The total volume of the 10 water buckets 8 is 2/3 of the total volume of the concentric circular truncated cones of the rotating wheel, namely 1.59 multiplied by 2/3 is 1.06m3This is the amount of water that can be transported per revolution of the rotor 3. If the transfusion is 1 ten thousand meters3Amount of water/d (0.116 m)3And/s), the time required for the runner 3 to rotate for one circle is 1.06/0.116 to 9.1 s.
The rotating wheel synchronizing gear 5 which is coaxial with the concentric circular truncated cone is arranged on the lower surface side of the rotating wheel 3, the rotating wheel synchronizing gear 5 and the rotating wheel 3 rotate at the same angular speed, and the rotating wheel synchronizing gear 5 is meshed and linked with the transmission rod 6 to ensure that the rotating wheels of other water treatment units and the rotating wheel 3 keep the same rotating speed. Under the condition that the sizes of the rotating wheels are the same and the water inflow of the rotating wheels can be ensured to be consistent, the water input of the water inlet channel 1 to each water treatment unit in unit time is the same.
If different water quantities are distributed to different water treatment units according to a certain proportion, the water treatment device can be realized by adjusting the number of teeth of the rotating wheel synchronous gears of the corresponding rotating wheels of the different water treatment units, the volume of the water buckets 8, the number of the water buckets 8 and the like.
The lowest points of the central cylinders 7 of the rotating wheels are all positioned below the water surface of the water supply channel, so that all the buckets of the rotating wheels 3 can be completely immersed below the water surface.
An exhaust pipeline is arranged on the central cylinder 7 of the rotating wheel, so that air in the rotating wheel 3 is conveniently exhausted when the rotating wheel is immersed.
If the water level at the tail end of the water supply channel 1 is low, the water bucket can be ensured to be completely submerged below the water level by increasing the gradient of the bottom of the water supply channel or increasing the diameter of the rotating wheel.
The rotating wheels 3 can drive the transmission rod 6 through a variable-frequency speed-regulating motor and a gearbox, and can also be driven by channel water inlet kinetic energy, and no matter how the driving mode is adopted, the rotating speed of the transmission rod 6 needs to be ensured to be controllable, so that the quantitative transmission of all the rotating wheels in the system is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, but rather the appended claims are intended to cover all such modifications and changes as fall within the true spirit and scope of the invention.
Claims (10)
1. A water distribution method of a channel quantitative water distribution device comprises a water supply channel (1), a water treatment unit (2), a runner (3) and a transfer channel (4); the method is characterized in that:
the water supply channel (1) is internally provided with a rotating wheel (3) and a transferring channel (4), the rotating wheel (3) is provided with a water bucket (8), and the transferring channel (4) is connected with the water treatment unit (2); the top of the rotating wheel (3) is provided with a rotating wheel synchronous gear (5), and the rotating wheel synchronous gear (5) is meshed with a gear on the transmission rod (6); a central cylinder (7) is arranged in the middle of the rotating wheel (3); a water bucket opening (9) is arranged on the water bucket (8);
when the rotating wheel (3) rotates to enable the opening of the water bucket (8) to be positioned below the horizontal plane of the water supply channel (1), water in the water supply channel (1) enters the water bucket (8) from the water bucket opening (9), and air in the water bucket (8) is exhausted through the air exhaust holes in the central cylinder (7); when the water bucket (8) rotates to a position above the water surface, water in the water bucket (8) flows out from the water bucket opening (9), falls into the transfer channel (4) and then flows into the water treatment unit (2), so that the water is transferred from the water supply channel (1) to the water treatment unit (2); the similar system is arranged at the interface of other water treatment units (2) and the water supply channel (1), each rotating wheel (3) keeps the same rotating speed through a rotating wheel synchronous gear (5) and a transmission rod (6), and the lowest point of a central cylinder (7) of each rotating wheel (3) is positioned below the water surface of the water supply channel (1), so that a water bucket (8) can be completely immersed below the water surface.
2. The water distribution method of the channel quantitative water distribution device according to claim 1, wherein: when each water treatment unit (2) distributes water in equal quantity, the rotating wheels (3) of each channel quantitative water distribution device have the same size and quantity and the same rotating speed; when the water treatment units (2) distribute water according to the proportion, the volume and the number of the water buckets are realized by adjusting the number of the gear teeth of the corresponding rotating wheel (3) of each water treatment unit (2).
3. The water distribution method of the channel quantitative water distribution device according to claim 1, wherein: an exhaust pipeline is arranged on the inner ring of the rotating wheel (3).
4. The water distribution method of the channel quantitative water distribution device according to claim 1, wherein: if the water level at the tail end of the water supply channel is low, the water bucket is ensured to be completely submerged below the water level by increasing the bottom gradient of the water supply channel (1) or increasing the diameter of the rotating wheel.
5. The water distribution method of the channel quantitative water distribution device according to claim 1, wherein: the rotating wheel (3) drives a transmission rod to drive through a variable-frequency speed-regulating motor and a gearbox, or drives by channel water inlet kinetic energy; the rotating speed of the transmission rod (6) can be controlled, and the quantitative distribution of the water quantity is realized.
6. The water distribution method of the channel quantitative water distribution device according to claim 1, wherein: when the runner (3) breaks down or the runner cannot transmit all water in the water supply channel (1) due to the increase of the water amount, the side wall of the water transmission channel (4) is provided with an opening at a certain height, so that the water automatically enters each water treatment unit (2) after the liquid level in the water supply channel (1) rises.
7. The water distribution method of the channel quantitative water distribution device according to claim 1, wherein: the water in the water supply channel is quantitatively conveyed to the water treatment unit through a rotating wheel and a conveying channel which are provided with a water bucket (8).
8. The water distribution method of the channel quantitative water distribution device according to claim 1, wherein: the lowest point of the central cylinder (7) of each rotating wheel (3) is positioned below the water surface of the water supply channel (1), and each water bucket (8) of each rotating wheel (3) can be completely immersed below the water surface.
9. The water distribution method of the channel quantitative water distribution device according to claim 1, wherein: an exhaust hole is arranged in the central cylinder (7), when the water bucket is immersed below the horizontal plane, the exhaust hole is opened, and after water enters the water bucket, air in the water bucket (8) is exhausted through the air hole, so that the water is ensured to rapidly enter the water bucket (8); when the water bucket (8) rotates to a position above the water surface, the exhaust holes are closed, and water cannot flow out of the exhaust holes.
10. The water distribution method of the channel quantitative water distribution device according to claim 1, wherein: when the water bucket (8) rotates to a position above the water surface, water in the water bucket (8) flows out from the opening of the water bucket, falls into the transfer channel and then flows into the water treatment unit (2); the synchronous gears of the rotating wheels which are coaxial with the rotating wheels (3) are linked with the transmission rod, so that the rotating wheels corresponding to the water treatment units keep the same rotating speed, and the water inflow of the water treatment units is the same under the condition that the sizes of the rotating wheels are the same and the water inflow of the rotating wheels can be ensured to be consistent;
the linkage between the rotating wheels (3) is realized by a transmission chain, a belt and a gear set.
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| CN202111215894.2A CN113802666B (en) | 2021-10-19 | 2021-10-19 | Channel quantitative water distribution device and water distribution method thereof |
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| GB856281A (en) * | 1957-06-11 | 1960-12-14 | Technica Ets | Bucket wheel for inward flow turbines or for centrifugal pumps |
| CN102003324A (en) * | 2010-12-13 | 2011-04-06 | 程向前 | Static water circulation power waterwheel |
| CN102296671A (en) * | 2011-05-17 | 2011-12-28 | 南宁舒曼特灯饰电器制造有限公司 | Water-saving device using pressure of tap water to collect domestic wastewater for secondary use |
| CN103603315A (en) * | 2013-11-12 | 2014-02-26 | 张鹏 | River pumping irrigation multifunctional scenery waterfall dam |
| CN205636887U (en) * | 2016-05-17 | 2016-10-12 | 三峡大学 | Unpowered two -way drinking device of ecological friendly type |
| CN107653851A (en) * | 2017-09-29 | 2018-02-02 | 中国农业科学院农田灌溉研究所 | A kind of channel intermittent water application device |
| CN209946134U (en) * | 2019-03-26 | 2020-01-14 | 北京东方园林环境股份有限公司 | Low-energy-consumption shore-based water quality automatic monitoring system |
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2021
- 2021-10-19 CN CN202111215894.2A patent/CN113802666B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB856281A (en) * | 1957-06-11 | 1960-12-14 | Technica Ets | Bucket wheel for inward flow turbines or for centrifugal pumps |
| CN102003324A (en) * | 2010-12-13 | 2011-04-06 | 程向前 | Static water circulation power waterwheel |
| CN102296671A (en) * | 2011-05-17 | 2011-12-28 | 南宁舒曼特灯饰电器制造有限公司 | Water-saving device using pressure of tap water to collect domestic wastewater for secondary use |
| CN103603315A (en) * | 2013-11-12 | 2014-02-26 | 张鹏 | River pumping irrigation multifunctional scenery waterfall dam |
| CN205636887U (en) * | 2016-05-17 | 2016-10-12 | 三峡大学 | Unpowered two -way drinking device of ecological friendly type |
| CN107653851A (en) * | 2017-09-29 | 2018-02-02 | 中国农业科学院农田灌溉研究所 | A kind of channel intermittent water application device |
| CN209946134U (en) * | 2019-03-26 | 2020-01-14 | 北京东方园林环境股份有限公司 | Low-energy-consumption shore-based water quality automatic monitoring system |
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| CN113802666B (en) | 2023-08-22 |
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