CN112916172B - Non-blocking spiral composite interception device - Google Patents
Non-blocking spiral composite interception device Download PDFInfo
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- CN112916172B CN112916172B CN202110120508.5A CN202110120508A CN112916172B CN 112916172 B CN112916172 B CN 112916172B CN 202110120508 A CN202110120508 A CN 202110120508A CN 112916172 B CN112916172 B CN 112916172B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/22—Crushing mills with screw-shaped crushing means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a non-blocking spiral composite intercepting device which comprises an intercepting capsule, a spiral conveying mechanism and a conveying mechanism, wherein the spiral conveying mechanism is arranged in the intercepting capsule, the height of an inlet of the intercepting capsule is not less than the water depth of a seawater inlet of a nuclear power station, and an outlet of the intercepting capsule is communicated with an inlet of the conveying mechanism; the spiral conveying mechanism is used for cutting the marine garbage in the intercepting bag and conveying the marine garbage to an outlet of the intercepting bag, and the conveying mechanism is used for conveying the marine garbage and marine organisms. Compared with the prior art, the marine organisms and the marine garbage in the interception bag are sucked out of the interception bag, so that the marine organisms and the marine garbage are automatically collected without manually extracting and cleaning the interception bag.
Description
Technical Field
The invention belongs to the technical field of garbage cleaning of a seawater inlet of a nuclear power station, and particularly relates to a non-blocking spiral composite intercepting device.
Background
The source of cooling water is critical to the proper operation of the nuclear power plant. The site selection of the existing nuclear power station is mostly selected in an area with sufficient cooling water, such as a coastal area. However, various marine organisms and marine garbage exist in the seawater, and if the seawater is directly introduced into a cooling system of the nuclear power station without being treated, the seawater will pose a great threat to the normal operation of the nuclear power station, so that the cooling water supply of the nuclear power station is abnormal, and the nuclear power unit is shut down and stopped.
Therefore, an intercepting system is generally arranged at a seawater inlet of the nuclear power plant, for example, an intercepting net (mesh is generally 3 x 3 mm) is adopted to intercept small shrimps, snails and the like. In the season of mass propagation of marine organisms, a large amount of marine organisms can be intercepted on the intercepting net, so that the intercepting net needs to be lifted up at intervals, and the marine organisms on the intercepting net are removed. However, when a large amount of marine organisms are attached to the intercepting net, the intercepting net is blocked, the weight of the intercepting net is greatly increased, and the intercepting net is difficult to extract and clean, so that the flow of seawater flowing into the cooling system of the nuclear power station is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems that the existing interception net can block the interception net when a large amount of marine organisms are intercepted on the interception net, the weight of the interception net is greatly increased, and the interception net is difficult to extract and clean, the non-blocking spiral composite interception device is provided.
In order to solve the technical problems, an embodiment of the invention provides a non-blocking spiral composite intercepting device, which comprises an intercepting capsule, a spiral conveying mechanism and a conveying mechanism, wherein the spiral conveying mechanism is arranged in the intercepting capsule, the height of an inlet of the intercepting capsule is not less than the water depth of a seawater inlet of a nuclear power station, and an outlet of the intercepting capsule is communicated with an inlet of the conveying mechanism; the spiral conveying mechanism is used for cutting the marine garbage in the intercepting capsule and conveying the marine garbage to an outlet of the intercepting capsule, and the conveying mechanism is used for conveying the marine garbage and marine organisms.
Optionally, the intercepting bag comprises a mesh bag and a U-shaped mounting shell integrated on the mesh bag, an opening communicated with the U-shaped mounting shell is arranged on the lower side of the mesh bag, and the spiral conveying mechanism comprises a rotating shaft arranged in the U-shaped mounting shell, a spiral blade fixed on the rotating shaft, and a first driving mechanism for driving the rotating shaft to rotate.
Optionally, the spiral conveying mechanism further comprises a cutting member disposed on the rotating shaft, the cutting member being used for cutting the marine waste.
Optionally, the non-blocking spiral composite intercepting device further comprises a crushing mechanism, an inlet of the crushing mechanism is communicated with an outlet of the spiral conveying mechanism, an outlet of the crushing mechanism is communicated with an inlet of the conveying mechanism, and the crushing mechanism is used for crushing the marine garbage conveyed by the spiral conveying mechanism.
Optionally, the conveying mechanism includes a volumetric pump and a second driving mechanism, an inlet of the volumetric pump is communicated with an outlet of the intercepting capsule, an outlet of the volumetric pump is connected with an inlet of the separating device, and the second driving mechanism is used for driving the volumetric pump to convey the marine garbage and the marine organisms.
Optionally, the non-blocking spiral composite intercepting device further comprises a floating bar, and the conveying mechanism is arranged on the floating bar.
Optionally, the intercepting capsule is flared, and a cross-sectional area of the intercepting capsule outlet is smaller than a cross-sectional area of the intercepting capsule inlet.
Optionally, a one-way valve is arranged at the connection of the outlet of the intercepting capsule and the inlet of the conveying mechanism.
Optionally, the non-blocking spiral composite intercepting device further comprises a back-flushing device for flushing the intercepting capsule from the intercepting capsule outlet to the intercepting capsule inlet.
Optionally, the intercepting capsules are provided with a plurality of intercepting capsules, the intercepting capsules are arranged in parallel, each intercepting capsule is internally provided with one spiral conveying mechanism, the inlet ends of the adjacent intercepting capsules are tightly connected, and the outlet of each intercepting capsule is respectively communicated with the inlet of the conveying mechanism.
Compared with the prior art, the non-blocking spiral composite intercepting device is arranged at a seawater inlet of the nuclear power station, when seawater flows through the non-blocking spiral composite intercepting device, the seawater flows into the intercepting bag from the inlet of the intercepting bag, the intercepting bag intercepts most of marine organisms and marine garbage in the seawater in the intercepting bag, the spiral conveying mechanism cuts the marine garbage and conveys the marine organisms and the marine garbage to the outlet of the intercepting bag, and the conveying mechanism absorbs the marine organisms and the marine garbage at the outlet of the intercepting bag and conveys the marine garbage to the shore. According to the non-blocking spiral composite intercepting device, marine organisms in the intercepting bag are transmitted to the shore through the transmission mechanism, the marine organisms can be directly transferred to other places for centralized treatment, a large number of marine organisms are prevented from being accumulated in the intercepting bag, so that the intercepting bag is prevented from being blocked and being too heavy and difficult to lift, the marine organisms and marine garbage are automatically collected, the intercepting bag does not need to be manually extracted and cleaned, the cleaning and maintenance of the intercepting bag are facilitated, and the efficiency and reliability for catching the marine organisms are improved; meanwhile, a spiral conveying mechanism is arranged in the intercepting bag to convey the marine garbage in the intercepting bag, so that the intercepting bag is prevented from being broken or the seawater flow of a seawater inlet of the nuclear power station is prevented from being influenced due to the blocking of the intercepting bag by the marine garbage (especially the garbage such as clothes, rubber bags, fishing nets, cables, floating trees and the like), and the filtering effect of the non-blocking spiral composite intercepting device on the seawater is further improved.
Drawings
Fig. 1 is a schematic structural diagram of a non-blocking spiral composite intercepting apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural view of another angle of the non-blocking spiral composite intercepting apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of an intercepting capsule and a spiral delivery mechanism provided by an embodiment of the present invention.
The reference numerals in the specification are as follows:
1. intercepting a capsule; 11. a mesh bag; 12. a U-shaped mounting shell;
2. a screw conveying mechanism; 21. a rotating shaft; 22. a helical blade;
3. a transport mechanism; 4. a separation device; 5. and (4) floating and discharging.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, the non-blocking spiral composite intercepting device provided by the embodiment of the invention comprises an intercepting bag 1, a spiral conveying mechanism 2 and a conveying mechanism 3, wherein the spiral conveying mechanism 2 is arranged in the intercepting bag 1, the height of an inlet of the intercepting bag 1 is not less than the depth of water of a seawater inlet of a nuclear power station, and an outlet of the intercepting bag 1 is communicated with an inlet of the conveying mechanism 3; the intercepting capsule 1 is used for intercepting marine garbage and marine organisms, the spiral conveying mechanism 2 is used for cutting the marine garbage in the intercepting capsule 1 and conveying the marine garbage to an outlet of the intercepting capsule 1, and the conveying mechanism 3 is used for conveying the marine garbage and the marine organisms.
Compared with the prior art, the non-blocking spiral composite intercepting device is arranged at a seawater inlet of a nuclear power station to filter seawater, when the seawater passes through, the seawater flows into the intercepting bag 1 from an inlet of the intercepting bag 1, most marine organisms and marine garbage in the seawater are intercepted in the intercepting bag 1 by the intercepting bag 1, meanwhile, the spiral conveying mechanism 2 cuts the marine garbage and conveys the marine garbage to an outlet of the intercepting bag 1, and the conveying mechanism 3 sucks the marine organisms and the marine garbage at the outlet of the intercepting bag 1 and conveys the marine garbage to the shore. According to the non-blocking spiral composite intercepting device, marine organisms in the intercepting bag 1 are conveyed to the shore through the conveying mechanism 3, the marine organisms and marine garbage are automatically collected by taking water as a medium, the marine organisms can be directly transferred to other places for centralized treatment, a large amount of marine organisms are prevented from being accumulated in the intercepting bag 1, so that the intercepting bag 1 is prevented from being blocked and the intercepting bag 1 is too heavy and difficult to lift, the cleaning and maintenance of the intercepting bag 1 are facilitated, and the efficiency and reliability for catching the marine organisms are improved; meanwhile, the spiral conveying mechanism 2 is arranged in the interception capsule 1 to convey the marine garbage in the interception capsule 1, so that the phenomenon that the interception capsule 1 is broken or the seawater flow of a seawater inlet of a nuclear power station is influenced due to the blocking of the interception capsule 1 by the marine garbage (particularly the garbage such as clothes, rubber bags, fishing nets, cables, floating trees and the like) is avoided, and the filtering effect of the non-blocking spiral composite interception device on the seawater is further improved.
It should be noted that the bottom of the inlet end of the interception capsule 1 is submerged and fixed on the sea bottom, and the top of the inlet end of the interception capsule 1 is floated on the sea level or extends out of the sea level.
In one embodiment, as shown in fig. 1 and 2, the non-blocking spiral composite intercepting device further comprises a separation device 4, an outlet of the conveying mechanism 3 is communicated with an inlet of the separation device 4, and the separation device 4 is used for separating marine organisms, marine garbage and seawater. The separation of marine life, marine waste and seawater by the separation device 4 is beneficial to separate treatment of marine waste and marine life, and the separated seawater can be discharged into the ocean again or further utilized.
In one embodiment, as shown in fig. 3, the intercepting capsule 1 comprises a mesh bag 11 with a downward opening and a U-shaped mounting shell 12 with an upward opening, the mesh bag 11 covers the U-shaped mounting shell 12 and is fixedly connected with the U-shaped mounting shell 12, and the spiral conveying mechanism 2 comprises a rotating shaft 21 arranged in the U-shaped mounting shell 12, a spiral blade 22 fixed on the rotating shaft 21 and a first driving mechanism for driving the rotating shaft 21 to rotate. The mesh bag 11 is combined with the U-shaped mounting shell 12, seawater flows through the mesh bag 11, marine organisms and marine garbage are intercepted in the intercepting bag 1 by the mesh bag 11, the spiral conveying mechanism 2 conveys the marine garbage to an outlet of the intercepting bag 1, the marine garbage is prevented from blocking the mesh bag 11, meanwhile, the rotating spiral blade 22 can cut the marine garbage, and the marine garbage is prevented from being wound on the spiral conveying mechanism 2.
Preferably, the mesh size of the mesh bag 11 is 3 x 3mm, which is beneficial to intercepting fine marine organisms and is convenient for purchasing and processing raw materials. In addition, the mesh bag 11 can also select mesh bodies with meshes of other sizes so as to meet different interception requirements.
Preferably, the U-shaped mounting shell 12 is made of a non-mesh sheet material. In addition, the U-shaped mounting shell 12 can also be made of the same net body as the net bag 11.
In an embodiment, the screw conveyor 2 further comprises a cutting member provided on the rotating shaft 21 for cutting the marine waste. The cutting effect of the spiral conveying mechanism 2 on the marine garbage is enhanced, and the marine garbage is prevented from being wound on the spiral conveying mechanism 2.
Preferably, the cutting member is a knife edge integrated into the outer edge of the helical blade 22. Simple structure and convenient processing.
Preferably, the cutting member is a blade fixed to the rotary shaft 21 or the helical blade 22. Is beneficial to improving the cutting effect.
In an embodiment, the non-blocking spiral composite intercepting device further comprises a crushing mechanism, an inlet of the crushing mechanism is communicated with an outlet of the spiral conveying mechanism 2, an outlet of the crushing mechanism is communicated with an inlet of the conveying mechanism 3, and the crushing mechanism is used for crushing the marine garbage conveyed by the spiral conveying mechanism 2. The marine garbage can be conveyed, and the phenomenon that the conveying channel is blocked by the marine garbage due to overlarge size is avoided.
In one embodiment, the transfer mechanism 3 comprises a volumetric pump and a second drive mechanism, wherein an inlet of the volumetric pump is communicated with an outlet of the intercepting capsule 1, an outlet of the volumetric pump is connected with an inlet of the separating device 4, and the second drive mechanism is used for driving the volumetric pump to transfer the marine garbage and the marine organisms. The positive displacement pump has high efficiency, flow rate unaffected by pressure change and self-sucking capacity, and is favorable to conveying marine garbage and marine life.
In one embodiment, the second drive mechanism is a hydraulic drive mechanism. The use safety of the conveying mechanism 3 is improved, and the electric leakage phenomenon is avoided when electric drive is adopted.
In one embodiment, as shown in fig. 1, the non-blocking spiral composite intercepting device further comprises a floating row 5, and the conveying mechanism 3 is arranged on the floating row 5. The distance between the conveying mechanism 3 and the intercepting capsule 1 is shortened, so that the connecting of the conveying mechanism 3 and the intercepting capsule 1 is facilitated, the floating discharge can flow along with the seawater in the rising tide or falling tide, and the influence caused by the tidal movement of the seawater is reduced.
In an embodiment, the displacement pump is arranged on the floating gate 5. The distance between the displacement pump and the intercepting bag 1 is shortened, the connection between the displacement pump and the intercepting bag 1 is facilitated, the floating discharge 5 can flow along with the seawater when the tide rises or falls, and the impact of the tidal movement of the seawater on the connection part of the displacement pump and the intercepting bag 1 is reduced.
In an embodiment, the second drive mechanism is arranged on the raft 5. The distance between the displacement pump and the second driving mechanism is shortened, the displacement pump is convenient to connect with the second driving mechanism, the impact of the tidal motion of the seawater on the joint of the displacement pump and the second driving mechanism is reduced, and the connection stability of the displacement pump and the second driving mechanism is improved.
In one embodiment, the second drive mechanism is located on shore. The installation cost is reduced, the stability of fixing the second driving mechanism is improved, and the second driving mechanism drives the displacement pump more stably.
In one embodiment, the separation device 4 is located on shore, as shown in figure 1. Reduce installation cost, improve the fixed stability of separator 4, avoid leading to separator 4 to sink into the sea water when the marine waste and the marine organism that hold in separator 4 are too much.
In one embodiment, as shown in fig. 1, the intercepting capsule 1 is provided with a trumpet shape and the cross-sectional area of the outlet of the intercepting capsule 1 is smaller than the cross-sectional area of the inlet of the intercepting capsule 1. Marine organisms and marine garbage can be better collected in the intercepting bag 1, so that the conveying mechanism 3 can absorb the marine organisms and the marine garbage at the outlet of the intercepting bag 1, and the filtering efficiency of seawater is improved.
In an embodiment, the connection of the outlet of the intercepting capsule 1 and the inlet of the transfer mechanism 3 is provided with a one-way valve. Is beneficial to conveying marine organisms and marine garbage, and avoids generating backflow to influence the filtering effect of seawater.
In an embodiment, the non-clogging helical composite interception device further comprises a back-flushing device for flushing the interception capsule 1 from the outlet of the interception capsule 1 to the inlet of the interception capsule 1. The intercepting bag 1 can be cleaned without extracting the intercepting bag 1 from seawater, so that marine organisms and marine garbage are prevented from being attached to the intercepting bag 1 to block meshes, and the intercepting bag 1 is convenient to maintain.
In one embodiment, as shown in fig. 2, the intercepting capsules 1 are provided with a plurality of intercepting capsules 1, a plurality of intercepting capsules 1 are arranged in parallel, each intercepting capsule 1 is internally provided with a spiral conveying mechanism 2, the inlet ends of adjacent intercepting capsules 1 are tightly connected, and the outlet of each intercepting capsule 1 is respectively communicated with the inlet of a conveying mechanism 3. The interception pressure of each interception capsule 1 is reduced, and the filtration efficiency and quality of the seawater are improved.
In one embodiment, a plurality of intercepting bags 1 are arranged, the intercepting bags 1 are arranged in parallel, a spiral conveying mechanism 2 is arranged in each intercepting bag 1, a conveying mechanism 3 is correspondingly arranged in each intercepting bag 1, the inlet ends of the adjacent intercepting bags 1 are tightly connected, the outlet of each intercepting bag 1 is communicated with the inlet of the corresponding conveying mechanism 3, and the outlet of each conveying mechanism 3 is respectively communicated with the inlet of the separating device 4. The arrangement of the plurality of conveying mechanisms 3 further improves the filtering efficiency and quality of the seawater, and also avoids overload operation of the conveying mechanisms 3.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The non-blocking spiral composite intercepting device is characterized by comprising an intercepting capsule, a spiral conveying mechanism and a conveying mechanism, wherein the spiral conveying mechanism is arranged in the intercepting capsule, the height of an inlet of the intercepting capsule is not less than the water depth of a seawater inlet of a nuclear power station, and an outlet of the intercepting capsule is communicated with an inlet of the conveying mechanism; the spiral conveying mechanism is used for cutting the marine garbage in the intercepting capsule and conveying the marine garbage to an outlet of the intercepting capsule, and the conveying mechanism is used for conveying the marine garbage and marine organisms;
the intercepting bag comprises a mesh bag and a U-shaped mounting shell integrated on the mesh bag, an opening communicated with the opening end of the U-shaped mounting shell is formed in the lower side of the mesh bag, and the spiral conveying mechanism is arranged on the U-shaped mounting shell;
the spiral conveying mechanism comprises a rotating shaft arranged in the U-shaped mounting shell, a spiral blade fixed on the rotating shaft and a first driving mechanism for driving the rotating shaft to rotate;
the spiral conveying mechanism further comprises a cutting piece arranged on the rotating shaft, and the cutting piece is used for cutting the marine garbage;
the non-blocking spiral composite intercepting device also comprises a back flushing device, and the back flushing device is used for flushing the intercepting bag from the intercepting bag outlet to the intercepting bag inlet;
the spiral conveying mechanism is characterized in that the intercepting bags are arranged in parallel, one spiral conveying mechanism is arranged in each intercepting bag, the inlet ends of the adjacent intercepting bags are tightly connected, and the outlet of each intercepting bag is communicated with the inlet of the conveying mechanism.
2. The non-blocking spiral composite intercepting apparatus of claim 1, further comprising a crushing mechanism, wherein an inlet of the crushing mechanism is communicated with an outlet of the spiral conveying mechanism, an outlet of the crushing mechanism is communicated with an inlet of the conveying mechanism, and the crushing mechanism is used for crushing the marine garbage conveyed by the spiral conveying mechanism.
3. An unobstructed spiral composite intercepting apparatus according to claim 1, wherein said transfer mechanism includes a volumetric pump and a second driving mechanism, the inlet of said volumetric pump is in communication with the outlet of said intercepting capsule, said second driving mechanism is used to drive said volumetric pump to transfer marine waste and marine life.
4. The non-blocking spiral composite intercepting apparatus of claim 1, further comprising a floating row, wherein the conveying mechanism is disposed on the floating row.
5. The non-clogging helical composite intercepting apparatus of claim 1 wherein the intercepting capsule is flared and the cross-sectional area of the intercepting capsule outlet is smaller than the cross-sectional area of the intercepting capsule inlet.
6. The non-blocking spiral composite intercepting apparatus of claim 1 wherein a one-way valve is provided at the junction of the outlet of the intercepting capsule and the inlet of the conveying mechanism.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110120508.5A CN112916172B (en) | 2021-01-28 | 2021-01-28 | Non-blocking spiral composite interception device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110120508.5A CN112916172B (en) | 2021-01-28 | 2021-01-28 | Non-blocking spiral composite interception device |
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| CN112916172A CN112916172A (en) | 2021-06-08 |
| CN112916172B true CN112916172B (en) | 2022-12-16 |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120683B (en) * | 2016-06-30 | 2018-07-13 | 大连理工大学 | Channel is disastrous breaks out marine organisms automatic clearing apparatus for a kind of water intaking of seawater |
| CN107503335B (en) * | 2017-08-31 | 2023-05-23 | 常熟理工学院 | Automatic interception device for river channel floaters |
| CN207878399U (en) * | 2018-02-12 | 2018-09-18 | 西华大学 | A kind of water conservancy and hydropower sewage cleaning device |
| CN109131879A (en) * | 2018-07-26 | 2019-01-04 | 合肥学院 | A kind of ocean garbage reclamation robot |
| CN109914351A (en) * | 2019-04-11 | 2019-06-21 | 苏州热工研究院有限公司 | A kind of nuclear power plant's intake high intensity intercept net system |
| CN210127450U (en) * | 2019-04-11 | 2020-03-06 | 苏州热工研究院有限公司 | Small-size marine organism interception net and interception net subassembly in nuclear power plant intake sea area |
| CN210104692U (en) * | 2019-04-25 | 2020-02-21 | 深圳海洋卫士环保科技有限公司 | Rotatory aquatic garbage collection device who promotes type and garbage collection fence thereof |
| CN211200293U (en) * | 2019-11-25 | 2020-08-07 | 黑龙江大学 | Floating garbage cleaning device for upstream water inlet of hydropower station |
| CN110965536A (en) * | 2019-12-20 | 2020-04-07 | 大连理工大学 | Fixed water area gathering floater automatic processing suction clearing device |
| CN111910598B (en) * | 2020-05-28 | 2021-10-12 | 山东省煤田地质局第一勘探队 | Sea surface cleaning device for marine organism protection |
| CN111997015B (en) * | 2020-07-30 | 2021-09-24 | 淮阴工学院 | Small-size river course self-cleaning device |
| CN111972361B (en) * | 2020-09-01 | 2022-04-29 | 中国水产科学研究院南海水产研究所 | Marine nuclear power station intake shrimp interception net |
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