JP2004188270A - Method and equipment for filtering water containing precipitable suspended material - Google Patents

Method and equipment for filtering water containing precipitable suspended material Download PDF

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Publication number
JP2004188270A
JP2004188270A JP2002356945A JP2002356945A JP2004188270A JP 2004188270 A JP2004188270 A JP 2004188270A JP 2002356945 A JP2002356945 A JP 2002356945A JP 2002356945 A JP2002356945 A JP 2002356945A JP 2004188270 A JP2004188270 A JP 2004188270A
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Prior art keywords
water
supply pipe
water supply
movable
water tank
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JP4122957B2 (en
Inventor
Akira Iimura
晶 飯村
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Kurita Water Industries Ltd
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Kurita Water Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To efficiently filter and remove even sedimentating suspended material deposited in a cooling water system or the like by a filtration equipment. <P>SOLUTION: A movable water supply pipeline 14B and a fixed water supply pipeline 14A are connected to the water supply side of the filtration apparatus 3. The sludge or the like deposited in a water tank 1d is supplied to the apparatus 3 by using the pipeline 14B. The pipeline 14B comprises a flexible hose and is moved to the position that the sludge is deposited so that the deposited sludge is sucked together with water and sent to the apparatus 3. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、冷却水系等の沈降性懸濁物含有水を効率的に濾過する方法と設備に関する。
【０００２】
【従来の技術】
ビル空調又は工業プラント等において発生する熱を冷却するための循環冷却水系では、熱交換器で負荷の冷却を行うことにより高温となった冷却水を冷却塔に導いて冷却し、これに補給水を補給して再び熱交換器において負荷の冷却を行うように循環している。このような循環冷却水系では、冷却塔において冷却水が蒸発することにより濃縮され、塩類濃度が高くなると共に、大気中から混入した腐食性物質や菌類、その他の不純物も蓄積、濃縮される。従って、このような冷却水系、特に開放循環冷却水系の高濃縮運転では、冷却水の水質が悪化し、細菌、かび、藻類などの微生物群に土砂、塵埃などが混ざり合って形成されるスライムが発生しやすくなり、熱交換器における熱効率の低下が起きる。また、塩類濃度の上昇で水系内に析出した炭酸カルシウムやシリカが堆積し、冷却水循環ポンプの閉塞を生じ、通水の悪化をもたらす。
【０００３】
このため、このようなスライムやスラッジによる障害を防止するために、一般に、濾過装置（サイドフィルタ）を冷却水系内に設置し、冷却水の一部を濾過することにより、スライム、スラッジ及びその原因となる各種の不純物を除去することが行われている。
【０００４】
【発明が解決しようとする課題】
しかし、除去対象となる水系内のスライムやスラッジ、その他の不純物には、水中に懸濁しているものもあるが、系内で堆積しているものも多い。一方で、冷却水の一部を濾過装置に供給して濾過する方法では、水中に懸濁している濁度成分を除去することは可能であるが、水系内の堆積物を除去することはできない。
【０００５】
水系内の汚染物質の除去効率を高めるために、濾過装置への通水量を増加させたり、濾過装置の濾過径を細かくしたりすることも行われているが、これらの方法では、水中に懸濁している濁度成分の除去効率は高められるものの、水系内に堆積するスライムやスラッジ、その他の不純物を除去することはできない。
【０００６】
本発明は上記従来の問題点を解決し、冷却水系等において、系内で堆積している沈降性懸濁物をも濾過装置で効率的に濾過して除去することができる沈降性懸濁物含有水の濾過方法及び濾過設備を提供することを目的とする。
【０００７】
【課題を解決するための手段】
本発明の沈降性懸濁物含有水の濾過方法は、沈降性懸濁物を含む水を水槽に導入し、該水槽内の水を給水配管を介して濾過装置に供給して濾過する方法において、該給水配管として該水槽内を移動可能な可動式の給水配管を設け、該可動式の給水配管により、該水槽内の水及び堆積物を該濾過装置に供給することを特徴とする。
【０００８】
本発明の沈降性懸濁物含有水の濾過設備は、沈降性懸濁物を含む水が導入される水槽と、該水槽内の水が給水配管を介して供給される濾過装置とを備える設備において、該給水配管として該水槽内を移動可能な可動式の給水配管を設け、該可動式の給水配管により、該水槽内の水及び堆積物を該濾過装置に供給可能としたことを特徴とする。
【０００９】
本発明によれば、可動式の給水配管を水槽内のスラッジ等の堆積部付近に移動させ、この給水配管の給水口を直接スラッジ等の堆積部分に挿入して給水することにより、水槽内の堆積物をも効率的に濾過装置に供給し、これを濾過して系外に排除することができる。
【００１０】
本発明では、濾過装置への給水配管として、可動式の給水配管と固定式の給水配管とを備えることが好ましく、これにより、効率的な給水を行って、水中に懸濁している濁度成分と水槽内に堆積している汚染物質とを共に効率的に濾過、除去することが可能である。
【００１１】
このような本発明の濾過方法及び濾過設備は、特に、冷却水系の処理に好適である。
【００１２】
【発明の実施の形態】
以下、図面を参照して本発明の沈降性懸濁物含有水の濾過方法及び濾過設備の実施の形態を詳細に説明する。
【００１３】
図１は本発明の実施の形態に係る沈降性懸濁物含有水の濾過設備を備えた循環冷却水系を示す系統図である。
【００１４】
冷却塔１において、散水管１ａから散水された冷却水は、充填材層１ｂを流下する間にルーバ１ｃから導入される空気と接触して冷却され、下部水槽（ピット）１ｄに冷却水として貯留される。蒸気を含む空気はファン１ｅにより大気中に排気される。
【００１５】
水槽１ｄ内の冷却水は、水槽１ｄの底部からポンプＰ１により抜き出され、冷却水供給用配管１１より熱交換器２に送給される。熱交換器２で熱交換して加熱された水は、戻り配管１２より冷却塔１に戻され、冷却され、循環使用される。なお、水槽１ｄの底部の冷却水の抜出口には、水槽１ｄ内のスラッジ等の堆積物が循環配管１１に流入しないように、ストレーナ１ｆが設けられている。１３は、この冷却水系への補給水の導入配管である。
【００１６】
この実施の形態では、冷却塔１の水槽１ｄから、給水配管１４Ａ，１４Ｂ，１４及びポンプＰ２により冷却水を抜き出し、濾過装置（サイドフィルタ）３で濾過して懸濁成分を除去した後、濾過水を配管１５より水槽１ｄに戻すように構成している。この濾過装置３としては、特に制限はないが、例えば、砂、アンスラサイト等の粒状濾材を充填した濾過層を設けたものが用いられ、上向流で濾過するものでも、下向流で濾過するものでもよい。なお、この濾過装置３では、濾過の継続により濾過層が目詰まりするので、濾材の逆洗を行い、循環冷却水のブローを兼ねて逆洗排水を配管１６より系外へ排出する。
【００１７】
濾過装置３の給水配管１４の先端側は、固定式の給水配管（以下「固定式サクション部」と称す場合がある。）１４Ａと可動式の給水配管（以下「可動式サクション部」と称す場合がある。）１４Ｂとに分岐しており、固定式サクション部１４Ａは、水槽１ｄの任意の箇所に固定されている。一方、可動式サクション部１４Ｂは、開閉バルブＶを備え、その先端側は可撓性のホース（例えば、ブレードホース等）で構成される。
【００１８】
図１に示す冷却水系では、例えば、固定式サクション部１４Ａから常時一定量の冷却水を濾過装置３に給水して濾過すると共に、必要に応じて不定期的に或いは定期的に可動式サクション部１４Ｂから冷却水を濾過装置３に給水して濾過する。可動式サクション部１４Ｂからも取水するときには、バルブＶを開とすると共に、水槽１ｄの底部のうち、特にスラッジ等の堆積物の多い箇所に可動式サクション部１４Ｂを移動させ、この堆積物中に可動式サクション部１４Ｂの先端給水口を差し込むことにより、水槽１ｄ底部の堆積物を冷却水と共に濾過装置３に給水する。このように、可動式サクション部１４Ｂを移動させて水槽１ｄの底部堆積物を濾過装置３に送給することにより、固定式サクション部１４Ａのみによる給水では除去し得ない堆積物を効率的に濾過装置３で濾過して系外へ排出することができるようになる。
【００１９】
この可動式サクション部１４Ｂによる取水は、冷却水系の運転状況や濃縮倍率等によっても異なるが、７〜１４日に１回、１〜２時間程度行えば十分な効果を得ることができる。ただし、常時可動式サクション部１４Ｂによって取水を行ってもよい。
【００２０】
図１の濾過装置は、可動式サクション部１４Ｂと固定式サクション部１４Ａとを備えるが、可動式サクション部のみで給水を行うものであっても良い。この場合には、可動式サクション部を仮固定して常時取水を行い、連続的又は間欠的に可動式サクション部を移動させるようにすれば良い。
【００２１】
なお、図１は、本発明を冷却水の濾過処理に適用した場合の実施の形態を示すものであるが、本発明は、冷却水系の処理に何ら限定されず、水槽内で堆積する沈降性懸濁物を含む水の処理であれば、いずれも好適に適用することができる。また、濾過装置としても特に制限はなく、前述の濾材充填層を設けたものの他、膜分離装置、遠心濾過機（サイクロンフィルター）等を用いることもできる。
【００２２】
【実施例】
以下に実施例及び比較例を挙げて本発明をより具体的に説明する。
【００２３】
実施例１
図１に示す如く、保有水量３ｍ３、循環水量１００ｍ３／ｈの冷却塔に濾過装置（濾過水量５ｍ３／ｈ）を設置し、固定式サクション部と可動式サクション部を設けた。固定式サクション部からの給水は連続に行い、可動式サクション部からの給水は１ｍ３／ｈで１週間に１回、１時間とした。可動式サクション部は目視でスラッジ堆積が顕著な箇所に移動させて適宜給水した。固定式サクション部からの給水量は５ｍ３／ｈであるが、可動式サクション部からの給水を行っているとき４ｍ３／ｈとなった。
【００２４】
冷却水系を２ヶ月間運転し、２ヶ月後に水系内に堆積したスラッジの乾燥重量を、糸巻きフィルターで全量濾過し、濾過後のフィルターの乾燥重量の増加値を測定することにより求めた結果、２ｋｇであり、循環水ポンプの流量低下は認められなかった。
【００２５】
比較例１
実施例１において、濾過装置による濾過を行わなかったこと以外は同様にして冷却水系を２ヶ月間運転したところ、２ヶ月後に水系内に堆積したスラッジの乾燥重量は２５ｋｇであり、スラッジが循環水ポンプストレーナを閉塞し、循環水流量は２０％低下していた。
【００２６】
比較例２
実施例１において、濾過装置への給水を固定式サクション部のみで行ったこと以外は同様にして冷却水系を２ヶ月間運転したところ、２ヶ月後に水系内に堆積したスラッジの乾燥重量は２０ｋｇであり、スラッジが循環水ポンプストレーナを閉塞し、循環水流量は１５％低下していた。
【００２７】
【発明の効果】
以上詳述した通り、本発明の沈降性懸濁物含有水の濾過方法及び濾過設備によれば、水中に懸濁している濁度成分のみならず、系内に堆積している懸濁物質をも濾過装置に供給してこれらを効率的に系外へ排出することができる。
【００２８】
このような本発明の濾過方法及び濾過設備は、特に、冷却水系の水処理に好適であり、冷却塔の水槽内の沈降性懸濁物含有水を可動式のサクション部と固定式のサクション部とで濾過装置に給水して、水中の懸濁成分のみならず、系内に堆積しているスライムやスラッジ、その他の汚染物質をも効率的に除去することにより、冷却水系の通水障害や熱効率の低下を防止して、長期に亘り安定運転を継続することが可能となる。
【図面の簡単な説明】
【図１】本発明の実施の形態に係る沈降性懸濁物含有水の濾過設備を備えた循環冷却水系を示す系統図である。
【符号の説明】
１ 冷却塔
２ 熱交換器
３ 濾過装置
１４Ａ 固定式の給水配管（固定式サクション部）
１４Ｂ 可動式の給水配管（可動式サクション部）[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a method and an apparatus for efficiently filtering water containing a settling suspension such as a cooling water system.
[0002]
[Prior art]
In a circulating cooling water system for cooling heat generated in a building air conditioner or an industrial plant, the cooling water, which has been heated by cooling a load with a heat exchanger, is guided to a cooling tower to be cooled, and replenished water is supplied to the cooling tower. And circulates again to cool the load in the heat exchanger. In such a circulating cooling water system, the cooling water is concentrated by evaporating the cooling water in the cooling tower to increase the salt concentration, and also accumulates and concentrates corrosive substances, fungi, and other impurities mixed from the atmosphere. Therefore, in such a cooling water system, particularly in the high concentration operation of the open circulation cooling water system, the quality of the cooling water deteriorates, and slime formed by mixing microorganisms such as bacteria, mold and algae with soil, dust and the like is formed. And heat efficiency in the heat exchanger is reduced. In addition, calcium carbonate and silica deposited in the water system due to the increase in the salt concentration are deposited, and the cooling water circulation pump is blocked, resulting in deterioration of water flow.
[0003]
For this reason, in order to prevent such slime and sludge from being hindered, generally, a filtering device (side filter) is installed in a cooling water system, and a part of the cooling water is filtered, thereby causing slime, sludge and its causes. Various impurities have been removed.
[0004]
[Problems to be solved by the invention]
However, some slime, sludge, and other impurities in the water system to be removed are suspended in water, but many are accumulated in the system. On the other hand, in the method of supplying a part of the cooling water to the filtration device and filtering, it is possible to remove the turbidity component suspended in the water, but it is not possible to remove the sediment in the water system. .
[0005]
In order to increase the efficiency of removing contaminants in the water system, the amount of water passing through the filtration device has been increased, or the filtration diameter of the filtration device has been reduced. Although the removal efficiency of cloudy turbidity components can be enhanced, it is not possible to remove slime, sludge, and other impurities deposited in the water system.
[0006]
The present invention solves the above-mentioned conventional problems, and in a cooling water system or the like, a sedimentable suspension that can efficiently remove even a sedimentable suspension accumulated in the system by a filtration device. An object of the present invention is to provide a method and a facility for filtering contained water.
[0007]
[Means for Solving the Problems]
The method for filtering sedimentary suspension-containing water of the present invention is a method for introducing water containing a sedimentable suspension into a water tank, supplying the water in the water tank to a filtration device via a water supply pipe, and filtering the water. A movable water supply pipe movable in the water tank is provided as the water supply pipe, and the water and the sediment in the water tank are supplied to the filtration device by the movable water supply pipe.
[0008]
The filtration equipment for sedimentary suspension-containing water of the present invention is an equipment comprising a water tank into which water containing sedimentation suspension is introduced, and a filtration device to which water in the water tank is supplied via a water supply pipe. In the above, a movable water supply pipe movable in the water tank is provided as the water supply pipe, and the water and sediment in the water tank can be supplied to the filtration device by the movable water supply pipe. I do.
[0009]
According to the present invention, the movable water supply pipe is moved to the vicinity of the pile of sludge or the like in the water tank, and the water supply port of the water supply pipe is inserted directly into the pile of the sludge or the like to supply water. The sediment can also be efficiently supplied to the filtration device, which can be filtered and eliminated from the system.
[0010]
In the present invention, it is preferable that a movable water supply pipe and a fixed water supply pipe are provided as water supply pipes to the filtration device, whereby efficient water supply is performed, and turbidity components suspended in water are preferably provided. And contaminants deposited in the water tank can be efficiently filtered and removed together.
[0011]
Such a filtration method and filtration equipment of the present invention are particularly suitable for treating a cooling water system.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a method for filtering sedimentable suspension-containing water and a filtration facility according to the present invention will be described in detail with reference to the drawings.
[0013]
FIG. 1 is a system diagram showing a circulating cooling water system provided with a facility for filtering sedimentable suspension-containing water according to an embodiment of the present invention.
[0014]
In the cooling tower 1, the cooling water sprinkled from the water sprinkling pipe 1a is cooled by coming into contact with the air introduced from the louver 1c while flowing down the filler layer 1b, and stored as cooling water in a lower water tank (pit) 1d. Is done. Air containing steam is exhausted to the atmosphere by the fan 1e.
[0015]
Cooling water in the water tank 1d is withdrawn by the pump P 1 from the bottom of the tank 1d, it is fed from the cooling water supply pipe 11 to the heat exchanger 2. The water heated by heat exchange in the heat exchanger 2 is returned to the cooling tower 1 from the return pipe 12, cooled, and circulated. In addition, a strainer 1f is provided at the outlet of the cooling water at the bottom of the water tank 1d to prevent sludge and other deposits in the water tank 1d from flowing into the circulation pipe 11. Reference numeral 13 denotes a piping for introducing makeup water to the cooling water system.
[0016]
In this embodiment, the cooling tower 1 of the tank 1d, the water supply pipe 14A, 14B, by 14 and pump P 2 withdrawn cooling water, after removing the suspended component by filtration through a filtration device (side filter) 3, It is configured to return the filtered water from the pipe 15 to the water tank 1d. The filtration device 3 is not particularly limited. For example, a filtration device provided with a filtration layer filled with a particulate filter material such as sand or anthracite is used. You may do. In the filtration device 3, since the filtration layer is clogged by the continuation of filtration, the filter medium is backwashed, and the backwash drainage is discharged from the pipe 16 to the outside of the system while also serving as a blow of circulating cooling water.
[0017]
The distal end side of the water supply pipe 14 of the filtration device 3 has a fixed water supply pipe (hereinafter sometimes referred to as “fixed suction section”) 14A and a movable water supply pipe (hereinafter referred to as “movable suction section”). 14B), and the fixed suction portion 14A is fixed to an arbitrary portion of the water tank 1d. On the other hand, the movable suction portion 14B includes an opening / closing valve V, and a distal end side thereof is formed of a flexible hose (for example, a blade hose or the like).
[0018]
In the cooling water system shown in FIG. 1, for example, a fixed amount of cooling water is always supplied from the fixed suction portion 14A to the filtration device 3 to be filtered, and if necessary, irregularly or periodically, the movable suction portion is provided. Cooling water is supplied from 14B to the filtration device 3 and filtered. When water is also taken from the movable suction part 14B, the valve V is opened, and the movable suction part 14B is moved to a portion of the bottom of the water tank 1d where there is a large amount of sediment such as sludge. By inserting the water supply port at the tip of the movable suction portion 14B, the sediment at the bottom of the water tank 1d is supplied to the filtration device 3 together with the cooling water. In this way, by moving the movable suction part 14B and feeding the bottom sediment of the water tank 1d to the filtering device 3, the sediment that cannot be removed by the water supply only with the fixed suction part 14A is efficiently filtered. Filtering by the device 3 allows discharge to the outside of the system.
[0019]
The water intake by the movable suction unit 14B varies depending on the operating condition of the cooling water system, the concentration ratio, and the like, but a sufficient effect can be obtained if performed once every 7 to 14 days for about 1 to 2 hours. However, water intake may be performed by the constantly movable suction unit 14B.
[0020]
Although the filtration device of FIG. 1 includes the movable suction portion 14B and the fixed suction portion 14A, water may be supplied only by the movable suction portion. In this case, the movable suction portion may be temporarily fixed to constantly take water, and the movable suction portion may be moved continuously or intermittently.
[0021]
FIG. 1 shows an embodiment in which the present invention is applied to a filtration treatment of cooling water. However, the present invention is not limited to the treatment of a cooling water system, and the present invention is not limited thereto. Any treatment of water containing a suspension can be suitably applied. Further, the filtration device is not particularly limited, and a membrane separation device, a centrifugal filter (cyclone filter), or the like can be used in addition to the filtration device provided with the above-described filter material packed layer.
[0022]
【Example】
Hereinafter, the present invention will be described more specifically with reference to Examples and Comparative Examples.
[0023]
Example 1
As shown in FIG. 1, a filtering device (filtration water amount 5 m 3 / h) was installed in a cooling tower having a retained water amount of 3 m 3 and a circulating water amount of 100 m 3 / h, and a fixed suction portion and a movable suction portion were provided. Water was supplied continuously from the fixed suction unit, and water was supplied from the movable suction unit at 1 m 3 / h once a week for one hour. The movable suction part was visually moved to a place where sludge accumulation was remarkable, and water was appropriately supplied. The amount of water supplied from the fixed suction unit was 5 m 3 / h, but was 4 m 3 / h when water was supplied from the movable suction unit.
[0024]
The cooling water system was operated for 2 months, and after 2 months, the dry weight of the sludge deposited in the water system was entirely filtered through a thread-wound filter, and the increase in the dry weight of the filter after the filtration was measured. No decrease in the flow rate of the circulating water pump was observed.
[0025]
Comparative Example 1
In Example 1, the cooling water system was operated for 2 months in the same manner except that the filtration by the filtration device was not performed. As a result, the dry weight of the sludge deposited in the water system after 2 months was 25 kg, and the sludge was circulating water. The pump strainer was closed and the circulating water flow was reduced by 20%.
[0026]
Comparative Example 2
In Example 1, the cooling water system was operated for 2 months in the same manner except that the water supply to the filtration device was performed only at the fixed suction section, and the dry weight of the sludge deposited in the water system after 2 months was 20 kg. Yes, sludge blocked the circulating water pump strainer and the circulating water flow was reduced by 15%.
[0027]
【The invention's effect】
As described above in detail, according to the method and the apparatus for filtering the sedimentary suspension-containing water of the present invention, not only the turbidity component suspended in the water, but also the suspended matter deposited in the system. Can also be supplied to the filtration device to efficiently discharge them out of the system.
[0028]
Such a filtration method and filtration equipment of the present invention are particularly suitable for water treatment of a cooling water system, and the sedimentary suspension-containing water in a water tank of a cooling tower is provided with a movable suction section and a fixed suction section. By supplying water to the filtration device at the same time, efficiently removing not only suspended components in the water but also slime, sludge, and other contaminants accumulated in the system, thereby preventing the water flow in the cooling water system, It is possible to prevent a decrease in thermal efficiency and continue stable operation for a long time.
[Brief description of the drawings]
FIG. 1 is a system diagram showing a circulating cooling water system provided with a facility for filtering settled suspension-containing water according to an embodiment of the present invention.
[Explanation of symbols]
Reference Signs List 1 Cooling tower 2 Heat exchanger 3 Filtration device 14A Fixed water supply pipe (fixed suction section)
14B Movable water supply pipe (movable suction section)

Claims (6)

沈降性懸濁物を含む水を水槽に導入し、該水槽内の水を給水配管を介して濾過装置に供給して濾過する方法において、
該給水配管として該水槽内を移動可能な可動式の給水配管を設け、該可動式の給水配管により、該水槽内の水及び堆積物を該濾過装置に供給することを特徴とする沈降性懸濁物含有水の濾過方法。In a method of introducing water containing a sedimentable suspension into a water tank and supplying water in the water tank to a filtration device through a water supply pipe to filter the water,
A movable water supply pipe movable in the water tank is provided as the water supply pipe, and the water and sediment in the water tank are supplied to the filtration device by the movable water supply pipe. A method for filtering turbid matter-containing water. 請求項１において、該給水配管として、更に、固定設置された固定式の給水配管が設けられており、該水槽内の水を該固定式の給水配管と該可動式の給水配管とで該濾過装置に供給することを特徴とする沈降性懸濁物含有水の濾過方法。2. The water supply pipe according to claim 1, further comprising a fixed water supply pipe fixed and installed, and the water in the water tank is filtered by the fixed water supply pipe and the movable water supply pipe. A method for filtering water containing sedimentable suspension, which is supplied to an apparatus. 請求項１又は２において、該沈降性懸濁物含有水が冷却水系の水であることを特徴とする沈降性懸濁物含有水の濾過方法。3. The method for filtering water containing sedimentation suspension according to claim 1, wherein the water containing sedimentation suspension is water of a cooling water system. 沈降性懸濁物を含む水が導入される水槽と、該水槽内の水が給水配管を介して供給される濾過装置とを備える設備において、
該給水配管として該水槽内を移動可能な可動式の給水配管を設け、該可動式の給水配管により、該水槽内の水及び堆積物を該濾過装置に供給可能としたことを特徴とする沈降性懸濁物含有水の濾過設備。In a facility equipped with a water tank into which water containing a settling suspension is introduced, and a filtration device in which water in the water tank is supplied via a water supply pipe,
A sediment, wherein a movable water supply pipe movable in the water tank is provided as the water supply pipe, and the water and sediment in the water tank can be supplied to the filtration device by the movable water supply pipe. For filtration of water containing an aqueous suspension. 請求項４において、該給水配管として、更に、固定設置された固定式の給水配管が設けられており、該水槽内の水を該固定式の給水配管と該可動式の給水配管とで該濾過装置に供給可能としたことを特徴とする沈降性懸濁物含有水の濾過設備。5. The water supply pipe according to claim 4, further comprising a fixed water supply pipe fixed and installed, and the water in the water tank is filtered by the fixed water supply pipe and the movable water supply pipe. Filtration equipment for water containing sedimentation suspended matter, which can be supplied to an apparatus. 請求項４又は５において、前記水槽は冷却水系の水槽であることを特徴とする沈降性懸濁物含有水の濾過設備。The filtration equipment according to claim 4 or 5, wherein the water tank is a cooling water system water tank.
JP2002356945A 2002-12-09 2002-12-09 Filtration method and equipment for water containing sedimentary suspension Expired - Fee Related JP4122957B2 (en)

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WO2016158312A1 (en) * 2015-03-31 2016-10-06 栗田工業株式会社 Water treatment method and device
JP2018015727A (en) * 2016-07-28 2018-02-01 トヨタ紡織株式会社 Sediment removal device and coolant circulation system including the same
JP2018167202A (en) * 2017-03-30 2018-11-01 栗田工業株式会社 Method and equipment for discharging sludge from cooling tower pit
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Publication number Priority date Publication date Assignee Title
CN100434372C (en) * 2005-04-15 2008-11-19 快宝环保有限公司 Method and apparatus for pre-treating high concentration organic waste water
WO2016158312A1 (en) * 2015-03-31 2016-10-06 栗田工業株式会社 Water treatment method and device
JP2016190224A (en) * 2015-03-31 2016-11-10 栗田工業株式会社 Water treatment method and equipment
CN107406277A (en) * 2015-03-31 2017-11-28 栗田工业株式会社 Method for treating water and device
CN107406277B (en) * 2015-03-31 2021-01-12 栗田工业株式会社 Water treatment method and apparatus
JP2018015727A (en) * 2016-07-28 2018-02-01 トヨタ紡織株式会社 Sediment removal device and coolant circulation system including the same
WO2018021256A1 (en) * 2016-07-28 2018-02-01 トヨタ紡織株式会社 Precipitate removing apparatus and cooling water circulation system provided with same
CN109152964A (en) * 2016-07-28 2019-01-04 丰田纺织株式会社 Sediment removal device and cooling water recirculation system with the sediment removal device
JP2018167202A (en) * 2017-03-30 2018-11-01 栗田工業株式会社 Method and equipment for discharging sludge from cooling tower pit
CN112459854A (en) * 2020-11-16 2021-03-09 湖南华润电力鲤鱼江有限公司 Circulating cooling water system and cooling method for steam turbine set

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