KR20010045279A - Method of generating electricity by water power - Google Patents

Method of generating electricity by water power Download PDF

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Publication number
KR20010045279A
KR20010045279A KR1019990048517A KR19990048517A KR20010045279A KR 20010045279 A KR20010045279 A KR 20010045279A KR 1019990048517 A KR1019990048517 A KR 1019990048517A KR 19990048517 A KR19990048517 A KR 19990048517A KR 20010045279 A KR20010045279 A KR 20010045279A
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Prior art keywords
effluent
power generation
sewage treatment
hydraulic turbine
treatment plant
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KR1019990048517A
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Korean (ko)
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김형운
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김형운
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Priority to KR1019990048517A priority Critical patent/KR20010045279A/en
Publication of KR20010045279A publication Critical patent/KR20010045279A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/08—Machine or engine aggregates in dams or the like; Conduits therefor, e.g. diffusors
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

PURPOSE: A method for generating small hydro power using effluent from a sewage disposal plant is provided to give resource regeneration effect and to supplement short of electric power by recovering and reusing energy resource properly. CONSTITUTION: A method for generating small hydro power using effluent from a sewage disposal plant includes the steps of installing an inclined connection channel(1) at a drop point of the sewage disposal plant for maintaining a head height of at least 4m and guiding effluent, mounting at an end point of the connection channel and actuating a hydraulic turbine(2) through flow of effluent, and controlling a predetermined power equipments for generating and supplying electricity according to the actuation of the hydraulic turbine.

Description

하수처리장의 방류수를 이용한 소수력 발전방법{METHOD OF GENERATING ELECTRICITY BY WATER POWER}Hydroelectric power generation method using effluent from sewage treatment plant {METHOD OF GENERATING ELECTRICITY BY WATER POWER}

본 발명은 하수처리장의 방류수를 활용하여 소수력 발전을 구현하기 위한 방법에 관한 것으로, 특히 폐수처리되는 하수처리장의 방류수를 재활용하여 저렴한 경제적 비용으로 유실 에너지의 재생효율 향상과 전력수급의 원할함을 도모하기 위한 하수처리장의 방류수를 이용한 소수력 발전방법에 관한 것이다.The present invention relates to a method for implementing hydrophobic power generation by utilizing effluent from sewage treatment plants, and in particular, by recycling effluent from sewage treatment plants treated with wastewater, it is possible to improve the regeneration efficiency of lost energy and supply of electricity at low economic cost. The present invention relates to a hydrophobic power generation method using discharged water from a sewage treatment plant.

일반적으로, 국내의 소수력 개발 현황으로는 한국전력 공사가 주관하여 수행하고 있는 1.850KW(2개소)와 민간업체에서 설치한 30,190KW(15개소)가 운영되고 있다.In general, as for the development of small hydro power in Korea, 1.850KW (2 places) managed by KEPCO and 30,190KW (15 places) installed by private companies are operating.

한편, 국내의 개발가능한 하수처리장 방류수의 이용가능 지역으로는 전국적으로 약 2,400개 소가 추정되고 있으며, 이를 이용할 경우 시설용량 약 580,000KW를 개발 설치할 수 있음이 충분히 예상되어지고 있다.On the other hand, it is estimated that about 2,400 locations are available nationwide for the development of sewage treatment plant dischargeable water in Korea, and if it is used, it is expected to develop and install about 580,000KW of facility capacity.

이중 100KW 미만이 약 58%인데, 상기 하수처리장에서 방류수위와 방류하전 하상(河床)과의 낙차를 조사하여 보면 평균 약 5,775m임을 확인할 수 있다.Of these, less than 100KW is about 58%, and the average of about 5,775m can be confirmed by examining the drop between the discharge water level and the discharged discharge bed in the sewage treatment plant.

기존 하수처리장의 소수력발전가용량 산출Calculation of hydropower capacity of existing sewage treatment plant

순간 가용량(KW) :Instant Capacity (KW):

KW 〓 9.8×QㆍHㆍητㆍηGKW 〓 9.8 × Q · H · ητ · ηG

여기서 :here :

Q 〓 기존 하수처리장의 용량(5,814,529CDM 〓 67,3CMS)Q 〓 Capacity of existing sewage treatment plant (5,814,529CDM 〓 67,3CMS)

H 〓 평균낙차(5,775m)H 〓 average drop (5,775m)

ητ〓 터어빈 효율(85%)ητ〓 Turbine efficiency (85%)

ηG 〓 발전기 효율(90%)ηG 〓 generator efficiency (90%)

KW 〓 9.8×67.3×5,775×0.85×0.90 〓 2982KWKW 〓 9.8 × 67.3 × 5,775 × 0.85 × 0.90 〓 2982KW

년간발전량(KWH) : 2982KW×365×24hr 〓 26,122,320KWHAnnual Power Generation (KWH): 2982KW × 365 × 24hr 〓 26,122,320KWH

년간발전량(원) : 26,122,320KWH×61.6원 ≒ 1,086,688천원Annual Power Generation (KRW): 26,122,320KWH × 61.6 KRW ≒ 1,086,688 thousand KRW

장래 국내 하수처리장의 소수력 발전가용량 산출Calculation of Small Hydro Power Generation Capacity in Domestic Sewage Treatment Plant

순간 가용량(KW) :Instant Capacity (KW):

KW 〓 98×QㆍHㆍητㆍηGKW 〓 98 × Q · H · ητ · ηG

여기서 :here :

Q 〓 기존 하수처리 계획 용량(14,987,800CDM 〓 173.4CMS)Q 〓 Existing Sewage Treatment Capacity (14,987,800 CDM 〓 173.4 CMS)

H 〓 평균낙차(4.92m)H 〓 average drop (4.92m)

KW 〓 9.8×173.4×5,775×0.85×0.90 〓 7507KWKW 〓 9.8 × 173.4 × 5,775 × 0.85 × 0.90 〓 7507KW

년간발전량(KWH) : 7507KW×365×24hr 〓 65,761,320KWHAnnual Power Generation (KWH): 7507KW × 365 × 24hr 〓 65,761,320KWH

년간발전량(원) : 65,761,320KWH×41.6원 ≒ 2,735,670천원Annual Power Generation (KRW): 65,761,320KWH × 41.6KRW ≒ 2,735,6701,000KRW

따라서, 본 발명은 이러한 국내의 방류수 처리 현황을 감안하여 안출된 것으로서 하수처리장의 폐수처리 방류수를 적절히 이용한 소수력의 발전방법을 제공하는 것이다.Therefore, the present invention has been devised in view of the present condition of domestic effluent treatment, and provides a method for generating hydrophobic power using wastewater treatment effluent in a sewage treatment plant.

종래에는 하수처리장의 폐수방류수를 재활용할 아무런 방안이 마련되어 있지 못하여 귀중한 자원이 그대로 유실되었음으로 이와 같은 폐수 및 하수 처리장에서 처리된 물을 다시 효율적으로 처리할 방안이 매우 절실하였다.In the related art, since there is no way to recycle the wastewater discharged from the sewage treatment plant, valuable resources are lost. Therefore, there is a great need for a method for efficiently treating the wastewater and the treated water in the sewage treatment plant again.

따라서, 상기의 제반 문제점을 해결하기 위해 안출된 본 발명은 유실되고 있는 에너지 자원을 적절하게 회수ㆍ재활용함으로서 자원의 재생효과의 더불어 부족한 전력의 수급에 기여하기 위함에 그 목적이 있다.Therefore, the present invention devised to solve the above-mentioned problems has an object to contribute to supply and demand of insufficient power as well as the regeneration effect of resources by appropriately recovering and recycling lost energy resources.

상기의 목적을 달성하기 위해 본 발명은 낙차 높이가 적어도 4m이상을 유지하도록 하수처리장의 낙하지점에 경사진 연결수로를 설치하여 방류수가 안내되도록 한 단계; 상기 연결수로의 내 공간부에 맞도록 외경의 크기가 설계되어 연결수로의 끝단부 지점에 설치된 채 방류수의 흐름에 의해 수력 터어빈이 가동되도록 한 단계; 및 상기 수력 터어빈의 가동에 따른 발전과 전력수급을 위해 소정의 발전설비를 제어하는 단계가 구비되어 이루어짐을 그 특징으로 한다.In order to achieve the above object, the present invention provides a step of guiding the discharge water by installing an inclined connection channel at the drop point of the sewage treatment plant to maintain the free fall height at least 4m; The outer diameter is designed to fit the inner space of the coupling channel so that the hydraulic turbine is operated by the flow of effluent while installed at the end point of the coupling channel; And controlling a predetermined power generation facility for generating power and supplying power according to the operation of the hydraulic turbine.

도 1은 본 발명의 일실시예를 도시해 보인 것으로서 수평형 소수력 발전소의 단면 계통도.1 is a cross-sectional schematic diagram of a horizontal hydropower plant as showing an embodiment of the present invention.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1 : 연결수로 2 : 수력 터어빈1: connection channel 2: hydro turbine

이하, 본 발명의 바람직한 일실시예를 통해 그 양호한 재현성을 확인하여 볼 수 있다.Hereinafter, the good reproducibility can be confirmed through the preferred embodiment of the present invention.

본 실시예에 따른 소수력 발전방법은 첨부된 도 1에서와 같이 통상의 하수처 리장 방류지점에서 낙차 높이가 적어도 4m이상을 유지하도록 하수처리장의 낙하지 점에 경사지게 연장된 연결수로(1)를 설치토록 하여 방류수가 통과되도록 하며, 다 음 단계로 상기 연결수로(1)의 내 공간부에 맞도록 외경의 크기가 설계됨으로 상기 공간부에 밀착지게 연결수로(1)의 끝단부 지점에 설치되어진 동력발생수단의 수력 터어빈(2)이 상기 방류수에 의하여 가동되도록 하는데, 이때 상기 수력 터어빈(2)의 가동에 따른 발전과 전력 수급을 위해 소정의 발전설비가 외부로부터 제어되도록한 단계가 순차적으로 마련되어 이루어지는 것이다.In the hydrophobic power generation method according to the present embodiment, as shown in FIG. 1, a connection channel 1 extending inclined to a drop point of the sewage treatment plant is maintained at a drop height of at least 4 m at a general sewage disposal point. The discharge water is allowed to pass through, and in the next step, the size of the outer diameter is designed to fit the inner space of the connection channel 1 so that the discharge water flows in close contact with the space. The hydraulic turbine 2 of the installed power generating means is operated by the discharged water, in which the step of allowing the predetermined power generation equipment to be controlled from the outside for power generation and power supply according to the operation of the hydraulic turbine 2 is sequentially performed. It is made of.

상기의 방법적 단계에 의해 경사지게 연장된 연결수로(1)를 통해 낙하되는 방류수가 연결수로(1)의 내 공간부에서 수력 터어빈(2)을 강력 회전시키게 되고 이에 따라 소정의 전력수급을 위한 발전을 충분히 예견하여 볼 수 있는데, 이를 국내 경기도 안양의 하수처리장에 적용하여 본 결과 다음과 같은 결과치와 가능성이 입증되었다.The discharged water falling through the connecting channel 1 inclined by the above method step is to strongly rotate the hydraulic turbine 2 in the inner space of the connecting channel 1, thereby providing a predetermined power supply. For this reason, it is possible to foresee the advancement of the project, which is applied to the sewage treatment plant in Anyang, Gyeonggi-do, Korea.

실시예Example

본 안양 하수종말처리장은 처리용량 300,000톤/일의 경우, 방율지점 EL 17.00m와 안양천 하상고 EL 12.30m 사이의 낙차 약 4.7m를 이용하여 소수력 발전을 시행하였다.In this Anyang sewage treatment plant, a small hydroelectric power generation was carried out using a drop of about 4.7m between the discharge rate branch EL 17.00m and Anyangcheon riverbed high EL 12.30m for the treatment capacity of 300,000 tons / day.

1) 소수력 발전 추정 제원 검토1) Review the specifications of small hydro power generation

정격 낙차 4.7mRated 4.7m

사용 수량 3.47m/sesQuantity 3.47m / ses

적용 수차 수평 프로펠라 형Applicable aberration horizontal propeller type

수차 출력 130KWAberration output 130KW

년간 발전량 824.256KWHAnnual Power Generation 824.256KWH

유입수 B O D 180 ∼ 210ppmInfluent B O D 180 ~ 210ppm

방류수 B O D 20ppmEffluent B O D 20ppm

통상, 하수처리장에서 배출되는 방류수는 계획된 량과 일정조건이 충분하게 갖추어진 에너지 자원으로서 여름, 겨울, 갈수기 등에도 거의 일정한 방류량을 유지하는 것으로서, 본 발명은 그 시설 효용성이 높고 방류량이 유지되는 한 거의 무한 기간동안 사용될 수 있다는 경제적 유용성을 갖는다.In general, the discharged water discharged from the sewage treatment plant is an energy resource with sufficient planned amount and constant conditions, and maintains a constant discharge amount even in summer, winter, and dry season, and the present invention provides high efficiency of the facility and maintains the discharge amount. It has the economic utility of being able to be used for almost infinite period of time.

따라서, 본 발명은 연중 무휴로 폐수의 량이 일정하므로 시설용량에 맞는 발전설비만 구비하면 되는 것으로, 결국 본 발명의 하수처리장 폐수처리 방류수를 이용한 소수력발전은 댐 조성에 따른 공사비를 현저히 절약할 수 있음과 동시에 소정의 발전설비만 갖추면 됨으로 그 경제적인 파급효과가 매우 크게 된다.Therefore, the present invention is to be equipped with a power generation equipment according to the facility capacity since the amount of waste water is open year-round, year-round, small-scale power generation using the sewage treatment plant wastewater treatment effluent of the present invention can significantly reduce the construction cost according to the dam composition At the same time, since only a predetermined power generation facility is provided, the economic ripple effect becomes very large.

또한, 본 발명의 수력 터어빈(2) 수치에 있어서 폐수처리 방류수가 B O D 20ppm 정도로만 방류되므로 저수댐에 의한 수력발전에 비하여 수차를 부식시킬 수는 있으나 조력발전의 경우보다는 훨씬 양호한 내구성을 유지할 수 있으므로 결국 일반 스텐레스 스틸제의 수차로도 충분히 가능한 것이어서 그 실시적 가치가 매우 높다.In addition, in the hydro turbine (2) value of the present invention, since the wastewater treatment effluent is only discharged to about 20 ppm of BOD, it can corrode aberrations compared to hydropower generation by low-water dams, but can maintain much better durability than tidal power generation. Since the aberration made of ordinary stainless steel is sufficiently possible, its practical value is very high.

Claims (1)

낙차 높이가 적어도 4m이상을 유지하도록 하수처리장의 낙하지점에 경사진 연결수로를 설치하여 방류수가 안내되도록 한 단계; 상기 연결수로의 내 공간부에 맞도록 외경의 크기가 설계되어 연결수로의 끝단부 지점에 설치된 채 방류수의 흐름에 의해 수력 터어빈이 가동되도록 한 단계; 및 상기 수력 터어빈의 가동에 따른 발전과 전력수급을 위해 소정의 발전설비를 제어하는 단계가 구비되어 이루어짐을 특징으로 하는 하수처리장의 방류수를 이용한 소수력 발전방법.Installing an inclined connection channel at a drop point of the sewage treatment plant to guide the discharge water so that the drop height is maintained at least 4 m; The outer diameter is designed to fit the inner space of the coupling channel so that the hydraulic turbine is operated by the flow of effluent while installed at the end point of the coupling channel; And controlling a predetermined power generation facility for power generation and power supply according to the operation of the hydraulic turbine.
KR1019990048517A 1999-11-04 1999-11-04 Method of generating electricity by water power KR20010045279A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100691529B1 (en) * 2004-09-16 2007-03-09 (주)제이엘크린워터 System for generation of electricity using small hydro power
KR101234325B1 (en) * 2010-12-24 2013-02-18 한국남부발전 주식회사 Small hydroelectric power plant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100691529B1 (en) * 2004-09-16 2007-03-09 (주)제이엘크린워터 System for generation of electricity using small hydro power
KR101234325B1 (en) * 2010-12-24 2013-02-18 한국남부발전 주식회사 Small hydroelectric power plant

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