KR100443499B1 - Separation device for rotatable membrane - Google Patents
Separation device for rotatable membrane Download PDFInfo
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- KR100443499B1 KR100443499B1 KR10-2001-0007706A KR20010007706A KR100443499B1 KR 100443499 B1 KR100443499 B1 KR 100443499B1 KR 20010007706 A KR20010007706 A KR 20010007706A KR 100443499 B1 KR100443499 B1 KR 100443499B1
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- South Korea
- Prior art keywords
- rotating
- rotating flat
- flat membrane
- diameter
- membrane
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- 239000012528 membrane Substances 0.000 title claims abstract description 62
- 238000000926 separation method Methods 0.000 title description 5
- 230000004907 flux Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
- B01D63/082—Flat membrane modules comprising a stack of flat membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/16—Rotary, reciprocated or vibrated modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/10—Testing of membranes or membrane apparatus; Detecting or repairing leaks
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2319/00—Membrane assemblies within one housing
- B01D2319/04—Elements in parallel
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
본 발명은 회전에 의한 회전 평막 디스크의 진동을 억제하면서, 유효막 면적을 가능한 한 넓게 취할 수 있도록 한 회전 평막 분리장치를 제공하는 것이다.SUMMARY OF THE INVENTION The present invention provides a rotating flat membrane separator that can take the effective membrane area as wide as possible while suppressing vibration of the rotating flat membrane disk due to the rotation.
복수 매의 회전 평막 디스크(2)가 등(等)간격으로 장착된 중공의 회전축(1)이 복수개 배설(配設)되어 있고, 인접한 회전축에 장착된 회전 평막 디스크가 서로 등간격으로 맞물려 설치되어 있는 회전 평막 분리장치에 있어서, 동일한 회전축(1)에 장착되어 있는 각 회전 평막 디스크(2)의 사이에 장착되어 있는 칼라(3)의 직경이 회전 평막 디스크(2)의 직경이 0.18 ∼ 0.34 인 것을 특징으로 하는 회전 평막 분리장치이다.A plurality of hollow rotating shafts 1, on which a plurality of rotating flat disks 2 are mounted at equal intervals, are disposed. A plurality of rotating flat disks mounted on adjacent rotating shafts are interlocked at equal intervals. In the rotating flat membrane separator, the diameter of the collar (3) mounted between each rotating flat disk (2) mounted on the same rotary shaft (1) is 0.18 to 0.34 in diameter. Rotating diaphragm separator characterized in that.
Description
본 발명은 수(水)처리설비에 관한 것이며, 특히 처리시스템내에 설치되는 회전 평막 분리장치에 관한 것이다.TECHNICAL FIELD The present invention relates to a water treatment plant, and more particularly to a rotating flat membrane separator installed in a treatment system.
근래, 대부분의 막 분리장치가 수처리 분야에 있어서의 고체 액체 분리장치로서 실용화되고 있다.In recent years, most membrane separators have been put into practical use as solid liquid separators in the field of water treatment.
막 분리장치에는 중공(中空)계형, 스파이럴형, 평막형 등 각종 모듈형상이 있으며, 용도에 따라서 구분 사용이 이루어지고 있다.Membrane separation apparatus has various modular shapes such as hollow type, spiral type, flat membrane type, and the like.
회전축에 회전 평막 디스크를 장착하여 디스크를 회전하면서 여과를 하는 회전 평막 모듈은, 막면의 오염층 부착을 방지하기 위한 막면 유속을 회전에 의해 얻으므로, 다른 막 모듈이 피처리액의 순환 유속으로 막면 유속을 얻고 있는 것과는 달리 저(低)동력에서의 운전이 가능하다는 특징을 가지고 있다.The rotating flat membrane module, in which a rotating flat membrane disk is mounted on the rotating shaft and filtered while the disk is rotated, obtains a membrane surface flow rate by rotation to prevent adhesion of the contaminant layer on the membrane surface. Unlike attaining the flow velocity, it is possible to operate at low power.
회전 평막 모듈은 복수 매의 회전 평막 디스크를 회전축에 장착하여 회전하면서 여과를 하지만, 회전수가 높아지면 각 회전 평막 디스크 사이의 피여과액이 회전 평막 디스크와 함께 회전하고, 회전에 의한 막면 유속이 얻어지지 않는다는 문제가 있었다.The rotating flat membrane module rotates and filters a plurality of rotating flat disks on the rotating shaft, but as the number of revolutions increases, the filtrate between the rotating flat membrane disks rotates with the rotating flat disk, and the membrane flow rate due to the rotation cannot be obtained. There was a problem.
그 문제를 해결하는 수단으로서는, 인접한 회전축에 장착된 회전 평막 디스크를 번갈아 맞물리게 하는 구조가 고안되어 있다(일본국 실용신안등록 제2023154호).As a means to solve the problem, a structure has been devised to alternately rotate the rotating flat membrane disks mounted on adjacent rotating shafts (Japanese Utility Model Registration No. 2023154).
이 구조에 의하면, 회전 평막 디스크가 서로의 방해판이 되어 액의 공동회전 방지가 된다.According to this structure, the rotating flat diaphragm discs become a hindrance plate to each other, preventing the rotation of the liquid.
그런데, 회전 평막 디스크와 회전 평막 디스크의 사이에는 디스크 사이의 거리를 일정하게 유지하므로, 칼라가 장착된다.By the way, since the distance between a disk is kept constant between a rotating flat membrane disk and a rotating flat membrane disk, a collar is attached.
이 칼라의 직경은 회전 평막 디스크의 유효막 면적에 영향을 미치는 동시에,회전 평막 디스크의 회전에 의한 진동에도 영향을 미친다.The diameter of this collar not only affects the effective film area of the rotating flat membrane disk, but also affects vibration caused by the rotation of the rotating flat membrane disk.
즉, 칼라직경을 작게 하면 회전 평막 디스크의 유효막 면적은 커지지만, 회전에 의한 회전 평막 디스크의 진동이 커지므로, 여과시의 회전수를 높게 설정할 수 없어 막면의 오염층 부착이 진행하여, 결과적으로 플럭스가 작아진다.In other words, if the color diameter is reduced, the effective membrane area of the rotating flat membrane disk is increased, but the vibration of the rotating flat membrane disk is increased due to the rotation. Therefore, the rotation speed during filtration cannot be set high, resulting in adhesion of the fouling layer on the membrane surface. The flux is reduced.
이 상황하에서 회전수를 높게 하면 인접한 회전축에 장착된 회전 평막 디스크가 접촉하여 파손할 위험성이 있다.In this situation, if the rotation speed is increased, there is a risk that the rotating flat membrane discs mounted on the adjacent rotating shafts will come into contact with and be damaged.
반대로, 칼라직경을 크게 하면, 회전에 의한 회전 평막 디스크의 진동은 작아지지만, 회전 평막 디스크의 유효막 면적이 작아지므로 장치 당(當) 처리량이 작아진다는 문제점이 있었다.On the contrary, when the collar diameter is increased, the vibration of the rotating flat membrane disk due to rotation decreases. However, the effective film area of the rotating flat membrane disk decreases, so that there is a problem that the throughput per device decreases.
본 발명은 상기 종래 기술의 문제점을 해소하여, 회전에 의한 회전 평막 디스크의 진동을 억제하면서, 유효막 면적을 가능한 한 넓게 취할 수 있도록 한 회전 평막 분리장치를 제공하는 것을 목적으로 한다.SUMMARY OF THE INVENTION An object of the present invention is to provide a rotating flat membrane separation apparatus which solves the problems of the prior art and can take the effective membrane area as wide as possible while suppressing vibration of the rotating flat membrane disk due to rotation.
도 1은 본 발명의 일 실시예를 나타낸 회전 평막 분리장치의 설명도.1 is an explanatory view of a rotating flat membrane separation device showing an embodiment of the present invention.
도 2는 칼라직경과 회전 평막 디스크직경의 비율과 유효막 면적 및 회전 평막 분리장치의 처리량의 관계를 나타낸 그래프.Fig. 2 is a graph showing the relationship between the ratio of the color diameter to the diameter of the rotating diaphragm, the effective membrane area, and the throughput of the rotating diaphragm separator.
(도면의 주요부분에 대한 부호의 설명)(Explanation of symbols for the main parts of the drawing)
1 ; 회전축 2 : 회전 평막 디스크One ; Rotating shaft 2: rotating flat disk
3 : 칼라3: color
본 발명은 칼라의 직경과 회전 평막 디스크의 직경을 적합한 비율로 설정함으로써, 상기 목적을 달성할 수 있다는 식견을 얻어 완성한 것이다.The present invention has been accomplished by finding that the above object can be achieved by setting the diameter of the collar and the diameter of the rotating flat membrane disk at an appropriate ratio.
즉, 본 발명의 회전 평막 분리장치는 복수 매의 회전 평막 디스크가 등(等)간격으로 장착된 중공의 회전축이 복수개 배설(配設)되어 있고, 인접한 회전축에 장착된 회전 평막 디스크가 서로 등간격으로 맞물려 설치되어 있는 회전 평막 분리장치에 있어서, 동일한 회전축에 장착되어 있는 각 회전 평막 디스크의 사이에 장착되어 있는 칼라의 직경이 회전 평막 디스크의 직경이 0.18 ∼ 0.34 인 것을 특징으로 한다.That is, the rotating flat membrane separator of the present invention is provided with a plurality of hollow rotary shafts on which a plurality of rotating flat membrane disks are mounted at equal intervals, and the rotating flat membrane disks mounted on adjacent rotating shafts are equally spaced from each other. In the rotating flat membrane separator, which is provided in mesh with each other, the diameter of the collar mounted between each of the rotating flat membrane disks mounted on the same rotating shaft is 0.18 to 0.34 in diameter.
다음에, 본 발명에 관한 회전 평막 분리장치를 구체적 실시예에 따라서, 도면을 참조하여 상세하게 설명한다.Next, a rotating flat membrane separation device according to the present invention will be described in detail with reference to the drawings.
도 1은 본 발명의 일 실시예를 나타낸 회전 평막 분리장치의 설명도이다.1 is an explanatory view of a rotating flat membrane separator showing an embodiment of the present invention.
도 1에 있어서는, 회전 평막 디스크(2)의 직경을 750mm, 칼라(3)의 직경을 200mm, 인접한 회전축(1)에 장착한 회전 평막 디스크(2)의 간격을 17mm 로 한 회전 평막 분리장치를 나타내고 있다.In Fig. 1, a rotating flat membrane separator in which the diameter of the rotating flat membrane disc 2 is 750 mm, the diameter of the collar 3 is 200 mm, and the interval of the rotating flat membrane disc 2 mounted on the adjacent rotating shaft 1 is 17 mm is shown. It is shown.
도 2에는 칼라직경과 회전 평막 디스크직경의 비율과 유효막 면적 및 회전 평막 분리장치의 처리량의 관계를 도 2에 나타낸다.Fig. 2 shows the relationship between the ratio of the color diameter to the diameter of the rotating flat disk, the effective membrane area, and the throughput of the rotating flat membrane separating apparatus.
도 2는 회전 평막 디스크 직경을 750mm 로 하고, 칼라의 직경을 100mm ∼ 300mm 로 변화시켜 인접한 회전축에 장착한 회전 평막 디스크가 접촉하지 않는 회전수로 운전을 했을 때의 플럭스를 즉정하여 유효막 면적과 회전 평막 디스크 100 매당 처리량을 나타낸 것이다.Fig. 2 shows the effective membrane area by immediately adjusting the flux when the rotating flat membrane disc diameter is set to 750 mm and the collar diameter is changed from 100 mm to 300 mm to operate the rotating flat membrane disc mounted on the adjacent rotating shaft at a rotational speed that does not contact. The throughput per 100 sheets of rotating flat disk is shown.
칼라직경과 회전 평막 디스크직경의 비율이 0.18 미만에서는 회전 평막 디스크의 진동이 커져, 회전수를 낮게 하여 여과 운전을 해야 하며, 유효막 면적은 크게 할 수 있지만, 결과적으로 플럭스가 낮아져서 처리량이 작아진다.When the ratio of the collar diameter to the rotating diaphragm disc diameter is less than 0.18, the vibration of the rotating diaphragm disc increases, so that the filtration operation must be performed at a low rotational speed, and the effective membrane area can be increased, but as a result, the flux is lowered and the throughput is small. .
또, 칼라직경과 회전 평막 디스크직경의 비율이 0.34 를 초과하면, 회전 평막 디스크의 진동은 작게 할 수 있어 회전수를 높게 설정하여 여과운전을 할 수 있으므로 플럭스는 커지지만, 회전에 의한 원심력의 증대에 의해 투과수(透過水)의 집수(集水) 저항이 커지고, 또 유효막 면적도 작아지므로 결과적으로 처리량은 작아진다.When the ratio of the color diameter to the diameter of the rotating flat membrane disk exceeds 0.34, the vibration of the rotating flat membrane disk can be reduced, and the filtration operation can be performed by setting the rotation speed high, so that the flux increases, but the centrifugal force due to the rotation increases. As a result, the collection resistance of the permeate is increased and the effective membrane area is also reduced, resulting in a smaller throughput.
따라서, 칼라직경과 회전 평막 디스크직경의 비율을 0.18 ∼ 0.34 로 설정하면 장치당 처리량을 크게 할 수 있음을 알 수 있다.Therefore, it can be seen that the throughput per device can be increased by setting the ratio between the collar diameter and the rotating flat membrane disk diameter to 0.18 to 0.34.
본 발명에 있어서 사용하는 회전 평막 디스크의 막 재질은, 특별히 제한은 없고 폴리술폰계, 폴리올레핀계 등의 유기계라도 금속막 등의 무기계라도 된다.The film material of the rotating flat membrane disk used in the present invention is not particularly limited, and may be an organic type such as polysulfone or polyolefin or an inorganic type such as a metal film.
또, 회전 평막 디스크의 지지판 재질에도 특별히 제한은 없고, 에폭시계, 염화비닐계 등의 유기계라도, SUS 판 등이라도 관계없다.Moreover, there is no restriction | limiting in particular also in the support plate material of a rotating flat membrane disk, It may be an organic type, such as an epoxy type and a vinyl chloride type, or a SUS board etc., either.
본 발명에 의해 구성한 회전 평막 분리장치는, 회전에 의한 회전 평막 디스크의 진동을 억제하면서, 유효막 면적을 가능한 한 넓게 취할 수 있으므로, 인접한 회전축에 장착된 회전 평막 디스크가 접촉에 의해 파손하는 일도 없고, 또 장치당처리량도 크게 할 수 있다.The rotating flat membrane separator constructed by the present invention can take the effective membrane area as wide as possible while suppressing vibration of the rotating flat membrane disc due to rotation, so that the rotating flat membrane disc mounted on the adjacent rotating shaft is not damaged by contact. In addition, the throughput per device can be increased.
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JPH08140007A (en) * | 1994-11-07 | 1996-05-31 | Sony Corp | Picture display controller |
JPH09116821A (en) * | 1995-10-18 | 1997-05-02 | Toshiba Corp | Television receiver |
JPH10290410A (en) * | 1997-04-11 | 1998-10-27 | Sony Corp | Television receiver and channel display method |
KR19980085954A (en) * | 1997-05-30 | 1998-12-05 | 배순훈 | Television receiver with automatic channel setting function when watching main screen |
KR19990005196U (en) * | 1997-07-14 | 1999-02-05 | 배순훈 | Multi-screen television with video signal displayed on the main screen when channel tuning |
KR19990039446A (en) * | 1997-11-12 | 1999-06-05 | 윤종용 | Picture-in-Picture Display Method and Television Receiver |
KR19990069916A (en) * | 1998-02-14 | 1999-09-06 | 구자홍 | How to switch the sub / main screen of TV |
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