KR20060060641A - Upper flow drainage apparatus for suspended sediment floatation removal type approaching channel of thermal power plant - Google Patents

Upper flow drainage apparatus for suspended sediment floatation removal type approaching channel of thermal power plant Download PDF

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KR20060060641A
KR20060060641A KR1020060039346A KR20060039346A KR20060060641A KR 20060060641 A KR20060060641 A KR 20060060641A KR 1020060039346 A KR1020060039346 A KR 1020060039346A KR 20060039346 A KR20060039346 A KR 20060039346A KR 20060060641 A KR20060060641 A KR 20060060641A
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South Korea
Prior art keywords
power plant
access channel
floating
thermal power
channel
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KR1020060039346A
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Korean (ko)
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윤성범
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윤성범
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Priority to KR1020060039346A priority Critical patent/KR20060060641A/en
Publication of KR20060060641A publication Critical patent/KR20060060641A/en

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B5/00—Artificial water canals, e.g. irrigation canals
    • E02B5/08—Details, e.g. gates, screens
    • E02B5/085—Arresting devices for waterborne materials, e.g. gratings
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Abstract

본 발명은 원자력발전소 또는 화력발전소와 같은 열발전소의 부유사 부상제거식 접근수로에 있어서, 기포에 의하여 부상된 부유사를 제거하기 위한 상층류 선택배출 장치에 관한 것으로, 접근수로를 사선(斜線)으로 횡단하는 상부차단판과 접근수로 측벽에 설치되는 월류수로(越流水路)로 구성된다.The present invention relates to an upstream selective discharge device for removing floating sand floating by a bubble in a floating sand floating type access channel of a thermal power plant such as a nuclear power plant or a thermal power plant. It consists of a traversing upper barrier plate and an overflow channel provided on the side wall of the access channel.

본 발명을 통하여 접근수로의 정온성(靜穩性)을 최대한 유지하면서 효과적인 상층류의 선택배출이 가능하게 되었으며, 이로써 상층류에 형성된 기포 및 포말의 파괴를 최소화 하여 부유사의 제거성능을 제고하는 효과를 얻을 수 있다.Through the present invention, it is possible to effectively discharge the upper layer flow while maintaining the tranquility of the access water to the maximum, thereby minimizing the destruction of bubbles and foam formed in the upper layer flow to obtain the effect of improving the removal performance of the floating sand. Can be.

발전소, 냉각, 부유사(浮流砂), 기포(氣泡), 상부차단 Power Plant, Cooling, Floating Sand, Bubble, Top Block

Description

부유사 부상제거식 열발전소 접근수로의 상층류 배출장치{Upper flow drainage apparatus for suspended sediment floatation removal type approaching channel of thermal power plant}Upper flow drainage apparatus for suspended sediment floatation removal type approaching channel of thermal power plant}

도 1은 부유사 부상제거식 접근수로가 적용된 원자력발전소의 냉각계통 종단도1 is a vertical cross-sectional view of a cooling system of a nuclear power plant to which floating floating floating waterway is applied.

도 2는 디켄터가 적용된 부유사 부상제거식 접근수로의 부분절단 사시도2 is a partially cutaway perspective view of a floating float floating type access channel to which a decanter is applied;

도 3은 본 발명이 적용된 부유사 부상제거식 접근수로의 부분절단 사시도Figure 3 is a perspective view of the partially cut floating float floating type access channel to which the present invention is applied

도 4는 본 발명의 절단 사시도4 is a cut perspective view of the present invention

도 5는 가동형 상부차단판이 적용된 본 발명의 일 실시예 부분절단 사시도5 is a partial cutaway perspective view of an embodiment of the present invention to which the movable upper blocking plate is applied

도 6은 부자식 상부차단판이 적용된 본 발명의 일 실시예 부분절단 사시도6 is a partial cutaway perspective view of an embodiment of the present invention to which a subsidiary upper blocking plate is applied

<도면의 주요부분에 대한 부호설명><Code Description of Main Parts of Drawing>

14 : 복수기(復水器, condenser)14: condenser

15 : 순환수펌프(circulation water pump)15: circulation water pump

16 : 취수관16: water intake pipe

20 : 접근수로(approaching channel)20: approaching channel

21 : 스크린(screen)21: screen

22 : 산기(散氣)장치22: diffuser

23 : 디켄터(decanter)23 decanter

24 : 상부차단판24: upper blocking plate

25 : 월류수로(越流水路)25: Wolyu Waterway

26 : 위어(weir)26: weir

27 : 권양기(捲揚機)27: hoisting machine

28 : 공기실28: air chamber

30 : 배수암거(排水暗渠)30: drainage culvert

본 발명은 원자력발전소 또는 화력발전소와 같은 열발전소의 부유사 부상제거식 접근수로에 있어서, 기포에 의하여 부상된 부유사를 제거하기 위한 상층류 선택배출 장치에 관한 것으로, 접근수로를 사선(斜線)으로 횡단하는 상부차단판과 접근수로 측벽에 설치되는 월류수로(越流水路)로 구성된다.The present invention relates to an upstream selective discharge device for removing floating sand floating by a bubble in a floating sand floating type access channel of a thermal power plant such as a nuclear power plant or a thermal power plant. It consists of a traversing upper barrier plate and an overflow channel provided on the side wall of the access channel.

열발전소는 원자로 또는 보일러를 통하여 물을 가열하여 발생된 수증기로 발전기에 연결된 터어빈을 구동함으로써 전기를 생산하게 되며, 터어빈을 구동한 수증기는 복수기(復水器, condenser)로 유입되어 냉각 및 응결된 후, 액체상태의 물 로 재공급되어 순환되는 구성을 가진다.A thermal power plant generates electricity by driving a turbine connected to a generator with steam generated by heating water through a reactor or a boiler. The steam driving the turbine is introduced into a condenser and cooled and condensed. After that, it has a configuration that is re-supplied and circulated to the liquid water.

열발전소 복수기의 냉각을 위한 냉각수는 외부의 수원(水源)으로부터 공급받게 되는데, 통상 상용운전되는 대규모 원자력발전소의 경우 막대한 양의 냉각수를 소요하므로, 해수(海水)를 취수하여 냉각수로 사용하는 경우가 많다.Cooling water for cooling the thermal power plant condenser is supplied from an external water source. In the case of a large-scale nuclear power plant that is normally operated, a large amount of cooling water is required, so that seawater is used as cooling water. many.

냉각수의 취수는 도 1을 통하여 알 수 있는 바와 같이, 순환수펌프(circulation water pump)(15)를 통하여 이루어지며, 복수기(14)를 거친 냉각수는 온배수(溫排水)가 되어 배수암거(30)를 통하여 배출되는데, 동 도면에 도시된 바와 같이 순환수펌프(15)와 연결된 취수관(16)은 취수지점 해안에 설치된 접근수로(20) 하류부에 구성된다.As can be seen through Figure 1, the intake of the coolant is made through a circulation water pump (circulation water pump) 15, the coolant passing through the condenser 14 is a hot water (溫 排水) drain culvert 30 Is discharged through, the intake pipe 16 is connected to the circulating water pump 15 as shown in the drawing is configured downstream of the access channel 20 installed on the intake point coast.

일반적으로 해수에는 수생동, 식물을 비롯한 다양한 부유물과 다양한 입경의 부유사(浮流砂)가 포함되어 있으므로, 접근수로(20)에는 스크린(21) 등의 여과시설이 설치되어 이들 부유물의 취수관(16)내 유입을 차단하고 있으며, 세립의 부유물은 세목(細目)의 여과망이나 침전지(沈澱池) 등을 통하여 제거하게 된다.In general, since the seawater includes various floats including aquatic plants, plants, and floating sands of various particle diameters, the access channel 20 is provided with a filtration facility such as a screen 21 so that the intake pipes of these floats are installed. (16) The inflow is blocked, and fines suspended in fines are removed through a filter net or sedimentation basin.

그러나, 취수되는 냉각수의 막대한 유량을 감안할 때, 침전지의 부지확보 및 침전시간을 확보하기가 매우 어려울 뿐 아니라, 미세 부유사의 경우 그 제거율이 매우 부진하므로 상당량이 복수기(14) 등의 발전소 냉각계통에 유입되어, 복수기(14)는 물론 냉각계통 내 각종 유체기계의 성능과 내구성을 저하시키는 바, 이러한 문제점을 해결하기 위하여, 접근수로(20) 하부에 산기장치(22)를 설치하고 상부에 디켄터(23) 등의 상층류 선택배출장치를 설치한 부유사 부상제거식 열발전소 접근수로(20)가 본 발명의 출원인에 의하여 개발되어 특허출원 제2006-39345호로 출 원된 바 있으며, 이는 도 1 및 도 2에 도시되어 있다.However, in view of the enormous flow rate of the intake cooling water, it is very difficult to secure the site and settling time of the sedimentation basin, and in the case of fine suspended sand, the removal rate is very poor. Is introduced into the condenser 14, as well as to reduce the performance and durability of the various fluid machines in the cooling system bar, in order to solve this problem, the diffuser device 22 is installed in the lower part of the access channel 20 and the decanter at the top Floating yarn floating type thermal power plant access waterway (20) having an upper flow selective discharge device such as (23) has been developed by the applicant of the present invention and has been filed as a patent application No. 2006-39345, which is shown in Figure 1 and 2 is shown.

이로써 냉각수내 부유사 농도가 획기적으로 감소되었으나, 상층류의 선택취수를 위하여 도 2에 도시된 형태의 디켄터(23)를 설치할 경우 디켄터(23)의 하부구조물로 인하여 접근수로(20)내 하부통수능이 저하될 수 있으며, 반대로 상측에서 펌프등을 통하여 강제흡입이 이루어지는 경우, 접근수로(20)의 전체 냉각수 흐름이 교란되어, 취수관(16) 인근의 정온성(靜穩性)을 확보할 수 없을 뿐 아니라, 상층에 형성된 기포 또는 포말이 파괴되면서 부유사가 재차 침강하는 등의 심각한 성능저하를 유발할 수 있다.As a result, the concentration of suspended sand in the cooling water was drastically reduced, but when the decanter 23 of the type shown in FIG. When the forced suction is performed through the pump or the like on the upper side, the entire cooling water flow of the access channel 20 is disturbed, so that the constant temperature near the intake pipe 16 can be secured. Not only that, but the bubbles or foam formed in the upper layer may be destroyed, which may cause serious performance deterioration such as settling of the floating sand again.

본 발명은 전술한 문제점을 감안하여 창안한 것으로, 접근수로를 사선으로 횡단하는 상부차단판을 설치하고, 이 상부차단판 하류단의 접근수로 상류측 벽에 월류수로를 설치하여, 상부차단판을 따라 사선의 상층류를 형성하고 이를 월류수로로 배출함으로써, 접근수로내 흐름의 교란을 최소화 하면서도 효과적인 상층류의 선택배출이 가능하도록 한 것이다.The present invention has been made in view of the above-described problems, by installing an upper barrier plate crossing the access channel obliquely, and installing an overflow channel on the upstream side of the access channel downstream of the upper barrier plate, By forming the upper stream of diagonal lines and discharging it to the overflow channel, it is possible to effectively discharge the upper stream while minimizing the disturbance of the flow in the access channel.

본 발명의 상세한 구성 및 작동원리를 첨부된 도면을 통하여 설명하면 다음과 같다.The detailed configuration and operation principle of the present invention will be described with reference to the accompanying drawings.

도 3은 본 발명의 전반적인 구성을 도시하고 있으며, 도 4는 상부차단판(24) 및 월류수로(越流水路)(25) 등의 구조를 상세하게 도시하고 있는 것으로, 동 도면을 통하여 알 수 있는 바와 같이, 상부차단판(24)과 월류수로(25)에 의하여 접근수로(20)의 상부에 자연스럽게 사선(斜線)의 상층류가 형성되며, 이로써 접근수로(20)의 정온성을 최대한 확보하여 기포나 포말의 파괴를 최소화하게 된다.Figure 3 shows the overall configuration of the present invention, Figure 4 shows in detail the structure of the upper blocking plate 24 and the overflow waterway 25, such as can be seen through the figure As it is, the upper blocking plate 24 and the overflow channel 25 is naturally formed in the upper portion of the upper channel of the oblique line (20) is formed, thereby maximizing the quietness of the access channel 20 This ensures the destruction of bubbles and foam.

상부차단판(24)은 접근수로(20) 전체를 사선으로 횡단하여 설치되며, 상부차단판(24)의 상단과 하단사이에 접근수로(20)의 수면이 위치하도록 한다.The upper blocking plate 24 is installed to cross the entire access channel 20 diagonally, so that the water surface of the access channel 20 is positioned between the upper end and the lower end of the upper blocking plate 24.

사선으로 설치된 상부차단판(24) 하류단의 접근수로(20) 벽면 중 상류측 벽면에는 월류수로(25)가 형성되는데, 월류수로(25)의 내부에는 월류수로(25) 전폭에 걸친 위어(weir)(26)가 구성되며, 이 위어(26)의 정부(頂部) 표고는 접근수로(20)의 수면 보다 소정거리 아래쪽에 위치되도록 한다.Overflow channel 25 is formed on the upstream side wall of the access channel 20 at the downstream end of the upper blocking plate 24 installed in a diagonal line, and the weir spans the entire width of the overflow channel 25 in the overflow channel 25. A weir 26 is constructed so that the altitude of the weir 26 is located below a predetermined distance from the water surface of the access channel 20.

도 3 및 도 4에 도시된 월류수로(25)는 접근수로(20)와 직각방향으로 설치되어 있는데, 차단판과 평행한 방향으로 설치하는 등 현장여건과 소요 정온도(靜穩度) 등에 따라 다양하게 변형할 수 있으며, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 선택 적용할 수 있는 사항이므로 이에 대한 청구범위의 구체적인 한정은 하지 않는다.3 and 4, the overflow channel 25 is installed at right angles to the access channel 20, and is installed in a direction parallel to the blocking plate, such as site conditions and required constant temperature. It may be variously modified according to the present invention, which is a matter that can be selectively applied by those skilled in the art to which the present invention pertains, and the specific scope of the claims is not limited thereto.

한편, 월류수로(25)의 하류측에는 도시되지는 않았지만 저류지(貯流池)와 펌프 등을 설치하여 수위를 인위적으로 낮게 유지할 수도 있다.On the other hand, although not shown on the downstream side of the overflow channel 25, a reservoir and a pump or the like can be provided to keep the water level artificially low.

접근수로(20)를 흐르는 원수는 산기장치(22)에서 발생된 기포에 의하여 원수내 부유사가 흡착 및 부상하여 상층부에 기포 및 포말이 형성되고, 이 상층부가 사선으로 설치된 상부차단판(24)에 충돌하면서 사선의 상층류가 형성되고 월류수 로(25)를 통하여 접근수로(20) 밖으로 배출되게 된다.The raw water flowing through the access canal 20 is adsorbed and floated in the raw water by bubbles generated in the air dispersing device 22 to form bubbles and foams in the upper layer, and the upper barrier plate 24 in which the upper layer is diagonally installed. The upper stream of the oblique line is formed while colliding with and is discharged out of the access channel 20 through the overflow channel 25.

부유사가 제거된 원수는 상부차단판(24) 하부를 통하여 상부차단판(24) 하류의 접근수로(20)로 유입되고, 취수관(16)을 통하여 취수되어, 냉각수로 사용된다.The raw water from which the floating sand is removed is introduced into the access channel 20 downstream of the upper barrier plate 24 through the lower portion of the upper barrier plate 24, and is collected through the intake pipe 16 and used as cooling water.

도 5 및 도 6은 수위에 따라 상부차단판(24)이 승강되도록 구성된 것으로, 각각 권양기(捲揚機)(27) 등에 의하여 기계적으로 작동되는 구성과, 상부차단판(24) 내부에 공기실(28)을 형성하여 일종의 부자(浮子)로서 작용하도록 함으로써 별도의 동력 없이도 자동으로 승강되는 구성을 도시하고 있다.5 and 6 are configured such that the upper blocking plate 24 is raised and lowered according to the water level, each of which is mechanically operated by a winch 27 or the like, and an air chamber 28 inside the upper blocking plate 24. By forming a) to act as a kind of rich (浮子) is shown a configuration that automatically lifts without a separate power.

본 발명은 주로 해안에 위치한 원자력발전소에 적용되므로, 조위 등에 의하여 수위가 수시로 변동됨을 감안할 때 상부차단판(24)이 수위에 따라 승강되도록 함으로써, 상부차단판(24) 내 수면의 위치를 항시 소정의 위치로 유지할 수 있게 된다.Since the present invention is mainly applied to a nuclear power plant located on the coast, the water level is frequently changed due to tidal level, etc., so that the upper blocking plate 24 is elevated according to the water level, so that the position of the water surface in the upper blocking plate 24 is always predetermined. Can be maintained at the position of.

한편, 도 5에서와 같이, 상부차단판(24)을 권양기(27)나 유체실린더 등의 기계장치에 의하여 조종하는 경우에는 수위를 감지하는 센서나 이를 토대로 권양기(27)를 제어하는 PLC(Programmable Logic Controller) 등이 구성될 수 있으나, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 현장여건에 따라 선택 적용할 수 있는 사항이므로, 이에 대한 청구범위의 구체적인 한정은 하지 않는다.On the other hand, as shown in Figure 5, in the case of operating the upper blocking plate 24 by a mechanical device such as a winch 27, a fluid cylinder, etc. PLC (Programmable) for controlling the winch 27 or a sensor for detecting the water level Logic Controller) and the like may be configured, but this is a matter that can be selectively applied according to the field conditions if one of ordinary skill in the art to which the present invention pertains, and the specific scope of the claims is not limited thereto.

결국 본 발명의 기술요지는 열발전소의 냉각수 취수용 부유사 부상제거식 접근수로(20)에 있어서, 접근수로(20)의 상부에는 접근수로(20)를 사선(斜線)으로 횡단하는 상부차단판(24)이 설치되되, 상부차단판(24) 상단과 하단 사이에 접근수 로(20)의 수면이 위치하도록 하고, 상부차단판(24) 하류단의 접근수로(20) 상류측 벽에는 정부(頂部) 표고가 접근수로(20) 수면 이하인 위어(26)가 구성된 월류수로(25)가 설치됨을 특징으로 하는 부유사 부상제거식 열발전소 접근수로의 상층류 배출장치로서, 상기 상부차단판(24)은 승강가능하도록 설치됨을 특징으로 하는 부유사 부상제거식 열발전소 접근수로의 상층류 배출장치이다.As a result, the technical gist of the present invention, in the floating water floating floating type access channel 20 for cooling water intake of the thermal power plant, crosses the access channel 20 diagonally on the upper part of the access channel 20. The upper blocking plate 24 is installed, and the water surface of the access channel 20 is located between the upper and lower ends of the upper blocking plate 24, and the access channel 20 upstream of the downstream end of the upper blocking plate 24 is upstream. An upstream discharge device of a floating-float floating thermal power plant access channel, characterized in that a wall overflow channel 25 comprising a weir 26 having a government elevation above the water level of the access channel 20 is installed on the side wall. The upper blocking plate 24 is an upper flow discharge device of the floating water floating type thermal power plant access waterway, characterized in that it is installed to be elevated.

본 발명을 통하여 접근수로의 정온성(靜穩性)을 최대한 유지하면서 효과적인 상층류의 선택배출이 가능하게 되었으며, 이로써 상층류에 형성된 기포 및 포말의 파괴를 최소화 하여 부유사의 제거성능을 제고하는 효과를 얻을 수 있다.Through the present invention, it is possible to effectively discharge the upper layer flow while maintaining the tranquility of the access water to the maximum, thereby minimizing the destruction of bubbles and foam formed in the upper layer flow to obtain the effect of improving the removal performance of the floating sand. Can be.

Claims (2)

열발전소의 냉각수 취수용 부유사 부상제거식 접근수로(20)에 있어서,In the floating sand flotation type access waterway for cooling water intake of the thermal power plant, 접근수로(20)의 상부에는 접근수로(20)를 사선(斜線)으로 횡단하는 상부차단판(24)이 설치되되, 상부차단판(24) 상단과 하단 사이에 접근수로(20)의 수면이 위치하도록 하고;An upper channel 20 is installed at an upper portion of the access channel 20 to cross the access channel 20 in an oblique line, and the access channel 20 is disposed between the upper and lower ends of the upper barrier plate 24. Let the surface of sleep be located; 상부차단판(24) 하류단의 접근수로(20) 상류측 벽에는 정부(頂部) 표고가 접근수로(20) 수면 이하인 위어(26)가 구성된 월류수로(25)가 설치됨을 특징으로 하는 부유사 부상제거식 열발전소 접근수로의 상층류 배출장치.On the upstream side of the access channel 20 downstream of the upper blocking plate 24, the overflow channel 25 formed of the weir 26 with the government elevation above the water level of the access channel 20 is installed. A device for discharging upstream of an access channel for floating float floating type thermal power plant. 제1항에 있어서, 상부차단판(24)은 승강가능하도록 설치됨을 특징으로 하는 부유사 부상제거식 열발전소 접근수로의 상층류 배출장치.The upper stream discharge device of claim 1, wherein the upper blocking plate (24) is installed to be elevated.
KR1020060039346A 2006-05-01 2006-05-01 Upper flow drainage apparatus for suspended sediment floatation removal type approaching channel of thermal power plant KR20060060641A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109505288A (en) * 2018-12-29 2019-03-22 河南水建集团有限公司 Water channel floating material automatic intercepting device
CN109841121A (en) * 2017-11-29 2019-06-04 上海企想信息技术有限公司 The teaching training box of Internet of Things

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109841121A (en) * 2017-11-29 2019-06-04 上海企想信息技术有限公司 The teaching training box of Internet of Things
CN109505288A (en) * 2018-12-29 2019-03-22 河南水建集团有限公司 Water channel floating material automatic intercepting device

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