JP2020034436A - Odor detector for detecting trace quantity of musty substance or the like - Google Patents
Odor detector for detecting trace quantity of musty substance or the like Download PDFInfo
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- 239000000126 substance Substances 0.000 title claims abstract description 77
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 211
- 238000001514 detection method Methods 0.000 claims abstract description 82
- 239000004065 semiconductor Substances 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 16
- 238000012360 testing method Methods 0.000 claims description 47
- 241000251468 Actinopterygii Species 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
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- LFYXNXGVLGKVCJ-FBIMIBRVSA-N 2-methylisoborneol Chemical compound C1C[C@@]2(C)[C@](C)(O)C[C@@H]1C2(C)C LFYXNXGVLGKVCJ-FBIMIBRVSA-N 0.000 description 18
- LFYXNXGVLGKVCJ-UHFFFAOYSA-N 2-methylisoborneol Natural products C1CC2(C)C(C)(O)CC1C2(C)C LFYXNXGVLGKVCJ-UHFFFAOYSA-N 0.000 description 18
- DTGKSKDOIYIVQL-UHFFFAOYSA-N dl-isoborneol Natural products C1CC2(C)C(O)CC1C2(C)C DTGKSKDOIYIVQL-UHFFFAOYSA-N 0.000 description 17
- 238000004458 analytical method Methods 0.000 description 11
- 238000012544 monitoring process Methods 0.000 description 11
- 239000008399 tap water Substances 0.000 description 7
- 235000020679 tap water Nutrition 0.000 description 7
- 230000002159 abnormal effect Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 229910006404 SnO 2 Inorganic materials 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000035943 smell Effects 0.000 description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 4
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- 231100000614 poison Toxicity 0.000 description 3
- 229910001887 tin oxide Inorganic materials 0.000 description 3
- 239000003440 toxic substance Substances 0.000 description 3
- JLPUXFOGCDVKGO-TUAOUCFPSA-N (-)-geosmin Chemical compound C1CCC[C@]2(O)[C@@H](C)CCC[C@]21C JLPUXFOGCDVKGO-TUAOUCFPSA-N 0.000 description 2
- 239000001075 (4R,4aR,8aS)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol Substances 0.000 description 2
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- 229930001467 geosmin Natural products 0.000 description 2
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- 238000000034 method Methods 0.000 description 2
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- 230000035945 sensitivity Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 238000011109 contamination Methods 0.000 description 1
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Abstract
Description
河川表流水や湖沼水や地下水やダム水、等の水道原水は、このところの異常気象でカビ臭物質産生藍藻（カビ臭藍藻）の増殖でカビ臭のジェオスミン、2-メチルイソボルネオール（2-MIB）が水道施設の浄水場で検知されている。そのため小型で安価で簡易に使用できて無人で24時間連続して原水中のカビ臭を検知したときはアラームを自動発報する装置の開発が望まれてきた。 Raw water from rivers, lakes, marshes, groundwater, dam water, etc., has recently developed a moldy odor substance-producing cyanobacterium (mouldy cyanobacterium) due to abnormal weather, and has a moldy odor of geosmin and 2-methylisoborneol (2-methylisoborneol). MIB) has been detected in water treatment plants. Therefore, development of a device that is small, inexpensive, easy to use, and automatically issues an alarm when a mold odor in raw water is detected continuously for 24 hours without any person has been desired.
原水中のカビ臭の検査装置は、ガスクロマトグラフィーと言われる測定装置が実用に供されているが高額で測定には専門知識を要し検知には長時間を要するため連続水の浄水処理に即応できず浄水場の水質担当者が数分おきに鼻で嗅いでいるが鼻が麻痺して臭わなくなるなど精神的・肉体的に検査員に大きな負担がかかっており大型浄水場は一日3人が3交代で臭いを嗅ぐなど過酷な作業対策をしているが、中小の浄水場は検査員1名で24時間この過酷な作業を続けているのが実情である。 As a test device for mold odor in raw water, a measuring device called gas chromatography is practically used, but it is expensive, requires specialized knowledge for measurement, and requires a long time for detection. The person in charge of water quality at the water treatment plant sniffs with his nose every few minutes because he cannot respond immediately, but the nose is paralyzed and no longer smells, which places a heavy burden on the inspector mentally and physically. Severe measures are taken, such as smelling the odor in three shifts, but the actual situation is that one inspector at a small and medium-sized water treatment plant continues this harsh work for 24 hours.
全国の浄水場ではカビ臭を感知すると粉末活性炭を投入して対処しているが、投入のタイミングが遅れると水道を使用している住民から苦情が寄せられる。そのため粉末活性炭を浄水場は多量に使用することとなり運営費用が高額になる。カビ臭発生を自動でアラームを出してもらえればその時検査員が臭いを嗅いでカビ臭であれば活性炭の投入をタイミングよく判断できる。 Water purifiers nationwide respond by supplying powdered activated carbon when they detect mold odor, but residents who use the water supply complain if the timing is too late. Therefore, a large amount of powdered activated carbon is used in the water treatment plant, which increases the operating cost. If a mold odor is automatically generated and an alarm is issued, the inspector can smell the mold at that time and if it is a mold odor, the injection of activated carbon can be judged at a good timing.
本発明の臭い物質を検知するセンサ素子はSn02(酸化スズ）半導体センサ素子を使用することにした。Sn02半導体は表面でのガス吸着による熱伝導度の変化及び電気伝導度の変化を、白金線コイルの抵抗値の変化として測定する汎用の半導体センサ素子（図4)でガス検知器や火災検知器や飲酒運転取り締まりの検知器など広く応用されているため品質の安定と供給不安が無く多量生産で安価に入手できることなどメリットもあるがカビ臭検知で使用された事例はなく、また半導体センサ素子は水道原水に含まれる他の臭い物質である土臭や油臭や生くさ臭や植物臭などカビ臭以外の臭いも検知しカビ臭だけを特定検知する素子構造になっておらず原水の微量なカビ臭物質を検知する目的で使用した事例は発明者しかいない。 The sensor element for detecting odorous substances according to the present invention uses a SnO 2 (tin oxide) semiconductor sensor element. Sn0 2 semiconductors changes and changes in the electrical conductivity of the thermal conductivity due to gas adsorption at the surface, gas detector and fire detection in general semiconductor sensor element for measuring a change in the resistance of the platinum coil (FIG. 4) It is widely used in applications such as water heaters and drunk driving crackdown detectors, so it has advantages such as stable quality and no supply uncertainty, and it can be mass-produced at low cost. Does not have an element structure that detects other odors other than mold odor such as earthy odor, oily odor, raw odor, and plant odor, which are other odorous substances contained in tap water, and has no element structure to detect only mold odor. Only the inventor has used it to detect mold odor substances.
しかし前出の過酷な作業に従事している検査員等はカビ臭と特定できなくても通常の臭い値より高い臭い値を測定したら、その時は鼻で嗅いで臭いの特定をしてカビ臭であれば活性炭を使用し、他の臭いであれば他の方法で処理をする、との意見要望であり小型・安価で簡易に使用できて無人で24時間連続自動で臭いを検知できる装置の開発が強く望まれている。 However, the inspectors engaged in the severe work described above, even if they could not identify the mold odor, if they measured an odor value higher than the normal odor value, then they smelled with the nose to identify the mold odor. In this case, it is requested that activated carbon be used, and that other odors be treated by another method. Development is strongly desired.
また水道法の第２３条１項の給水の緊急停止では水道事業者は、その供給する水が人の健康を害する恐れがあることを知ったときは、直ちに給水を停止し、かつ、その水を使用することが危険である旨を関係者に周知させる措置を講じなければならない。罰則規定（水道法 第５２条）第２３条１項の規定に違反した者は、３年以下の懲役又は３００万円以下の罰金などの刑法の適用。水道法の施行改正（平成１２年厚生省環境衛生局通達）水道水源が汚染されるおそれのある水道事業においては水源の監視を強化し、また必要に応じて水道原水による魚類の飼育、自動監視機器の導入を考慮するなど、劇毒物等による汚染の早期発見に努めること。とあるため国内の水道施設の浄水場においては原水の魚類による連続水監視をおこなっている。発明者はこの魚類自動監視装置の製造メーカーであるが原水の毒物は魚で監視をし、油やカビ臭など魚で検知できない臭い物質を検知する臭いセンサを魚類自動監視装置に装着してもらいたいとの要望も合わせて出てきた。これらの要望を解決するためにはコンパクトに取り扱いが容易で尚且つ安価に製造しなければならない。 In the case of emergency stoppage of water supply under Article 23, Paragraph 1 of the Water Supply Law, a water supply company shall immediately stop water supply when it learns that the supplied water may harm human health, and Measures must be taken to inform interested parties that it is dangerous to use Penalties (Article 52 of the Water Supply Law) Those who violate the provisions of Article 23, paragraph 1 shall be subject to the penal code of three years or less or a fine of 3 million yen or less. Water supply law enforcement revision (2000 Ministry of Health and Welfare Bureau of Environment and Health Bureau notification) Strengthen monitoring of water sources in water supply business where there is a risk of contaminating tap water sources, and breed fish using raw tap water, automatic monitoring equipment as necessary Consider the introduction of toxic substances and try to detect contamination by toxic substances at an early stage. For this reason, continuous water monitoring by fish in raw water is performed at water treatment plants in domestic water supply facilities. The inventor is a manufacturer of this automatic fish monitoring device. We also came up with a request that we wanted. In order to solve these demands, it is necessary to manufacture the device compactly and easily, and at a low cost.
水道法では2-メチルイソボルネオール（2-MIB）の水質基準値は10pp（10ng/L）であり水道原水の2-MIBをSn02(酸化スズ）半導体センサ素子を使用して検知した論文も知見もない。また住民の中には2-MIBで3ppt〜5ppt(3ng〜5ng)の水道法の設定値より低い微量なカビ臭で苦情を寄せることもあるため微量なカビ臭物質等を検知する装置の開発が望まれるが水道原水である河川表流水や湖沼水や地下水やダム水において2-MIBで3ppt〜5ppt(3ng〜5ng)の微量カビ臭は他の異臭が強い場合は、微量カビ臭は異臭に埋没した状態で他の臭いを検知してしまう問題がある。そのため次の項目の微量カビ臭を検知する分析容器の構造が必要である。 According to the Waterworks Law, the standard value of water quality for 2-methylisoborneol (2-MIB) is 10 pp (10 ng / L), and some papers have detected 2-MIB of tap water using SnO 2 (tin oxide) semiconductor sensor element. There is no knowledge. In addition, some residents may complain about a slight mold odor that is lower than the setting value of the water supply law of 3 ppt to 5 ppt (3 ng to 5 ng) with 2-MIB, so development of a device to detect trace mold odor substances etc. In the surface water of rivers, lakes, marshes, groundwater, and dams, which are raw water for tap water, a trace mold odor of 3 ppt to 5 ppt (3 ng to 5 ng) in 2-MIB is other odor. There is a problem that other odors are detected in the state of being buried. Therefore, it is necessary to have a structure of an analysis container that detects the following items of trace mold odor.
まず、分析容器の気体(臭気)が占める空間容積を極力縮小する必要がある。原水の持つ臭気濃度の希釈を防ぐことにより、低濃度の臭気を検知することが可能になる。更に水の変化に伴った臭気の入れ替え速度を増し、応答性を向上させることで臭気検知及び臭気検知の回復につながる。 First, it is necessary to minimize the space volume occupied by the gas (odor) in the analysis container. By preventing dilution of the odor concentration of the raw water, it becomes possible to detect a low-concentration odor. Further, the speed of replacing odors with the change of water is increased to improve the responsiveness, which leads to odor detection and recovery of odor detection.
また、受水槽及び調整バルブを設置し、原水の水量と流速の流れを安定化する必要がある。原水の安定状態におけるニオイ値(mV)を安定し、臭気を検知した際の変化を明確にする。
また、分析容器の清掃で無検査時間を作らないため、現場では清掃はせずに分析容器を取り出し予備の分析容器と丸ごと入れ替え清掃は別の場所で行うための取り外しや装着を簡便にする。
In addition, it is necessary to install a water receiving tank and an adjustment valve to stabilize the flow of the raw water and the flow rate. Stabilizes the odor value (mV) in the stable state of raw water and clarifies the change when odor is detected.
In addition, since no inspection time is created by cleaning the analysis container, the analysis container is taken out without cleaning at the site, and the entire analysis container is replaced with a spare analysis container.
また、分析容器は丸ごと取り換えるため接続配管や配線はコネクター式とするが、内部に外気からの異臭が侵入しない構造にしなければならない。
また、分析容器の半導体センサ素子の信号を臭いセンサ制御装置でマイコンで処理しデータをパソコンに出力しアラーム表示とデータ記録のソフトウェアを必要とする。
In addition, since the analysis vessel is replaced as a whole, the connection piping and wiring are of a connector type, but the structure must be such that an odor from the outside air does not enter the inside.
Also, the signal of the semiconductor sensor element in the analysis container is processed by the microcomputer by the odor sensor control device, the data is output to the personal computer, and the software for alarm display and data recording is required.
また、既存のメダカの水質自動監視装置に組込むためにコンパクトに収納するために分析容器の各パーツ部材の小型化を図らなければならない。
また、既存のメダカの水質自動監視装置に組込まない臭いセンサだけの単独の装置として使用するようにしなければならない。
等々の課題の解決を図らなければならない。
Further, in order to incorporate the analyzer into an existing automatic medaka water quality monitoring device, it is necessary to reduce the size of each part of the analysis container in order to store the analyzer compact.
In addition, it must be used as an independent device with only an odor sensor that is not incorporated in the existing automatic medaka water quality monitoring device.
We need to solve various issues.
上記の課題解決のため請求項１記載の微量なカビ臭物質等を検知する臭い検出装置は、給水管７２を介して原水７０が供給される受水槽７１と、落差をつけるために受水槽７１より低い位置に配置される排水槽６１と、排水槽６１内底部に配置されていて上面を開口した検水槽８１と、排水槽６１内上端部に配置されていて下面開口部が検水槽８１の上面開口部を覆う遮断槽６２と、排水槽６１の上面に開口部が上向きに配置され内部に半導体センサ素子１０６を備えたセンサユニット１０５が収容された臭気筒１００と、遮断槽６２内天井部に下面開口部が検水槽８１に向けて配置された臭気管１０１と、受水槽７１内の原水を落差により臭気管１０１内に供給する検水管８２と、エアー管９４を介して検水槽８１内にエアーを送るブロワー９２と、を主な構成として備え、
前記センサユニット１０５は、臭気筒１００内を上下に仕切る仕切り板１０８の上面に取り付けられ、センサユニット１０５の半導体センサ素子１０６が仕切り板１０８で仕切られた臭気筒１００の下方の臭い室１００ａ内に露出する状態で設けられ、
前記臭い室１００ａ内には、臭気筒１００内に連通する臭気キャップ１０２が設けられ、該臭気キャップ１０２の側面周縁には複数の臭気孔１０３が設けられ、
前記仕切り板１０８の一部には臭気筒１００の上方の排気室１００ｂに通じる通気孔が設けられていることを特徴とする。
In order to solve the above-mentioned problems, the odor detection device for detecting a slight amount of moldy odor substance and the like according to claim 1 includes a water receiving tank 71 to which raw water 70 is supplied via a water supply pipe 72 and a water receiving tank 71 for forming a head. A drainage tank 61 disposed at a lower position, a water test tank 81 disposed at the bottom of the drainage tank 61 and having an open upper surface, and a water test tank 81 disposed at the upper end of the drainage tank 61 and having a lower surface opening of the water test tank 81 A blocking tank 62 that covers the upper opening, an odor cylinder 100 in which a sensor unit 105 having a semiconductor sensor element 106 therein is accommodated and an opening is arranged upward on the upper surface of the drain tank 61, and a ceiling part inside the blocking tank 62. The odor pipe 101 whose lower surface opening is arranged toward the test tank 81, the test pipe 82 for supplying raw water in the water receiving tank 71 to the odor pipe 101 by a head, and the test pipe 81 through the air pipe 94. Blower that sends air to With 92, as main components,
The sensor unit 105 is mounted on an upper surface of a partition plate 108 that vertically partitions the inside of the odor cylinder 100, and is provided in an odor chamber 100 a below the odor cylinder 100 where the semiconductor sensor element 106 of the sensor unit 105 is partitioned by the partition plate 108. Provided in an exposed state,
In the odor chamber 100a, an odor cap 102 communicating with the odor cylinder 100 is provided, and a plurality of odor holes 103 are provided on a side edge of the odor cap 102,
A part of the partition plate 108 is provided with a vent hole communicating with the exhaust chamber 100b above the odor cylinder 100.
請求項２記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項１記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記受水槽７１には受水槽７１の水位を調整するオーバーフロー管７４が設けられ、排水槽６１には、排水槽６１内の水位を検水槽８１の上面開口縁部より低く排水槽６１の下面開口縁部より高い位置に調整する排水管６５が接続されていることを特徴とする。
An odor detection device for detecting a small amount of mold odor substance according to claim 2 is an odor detection device for detecting a small amount of mold odor substance according to claim 1,
The water receiving tank 71 is provided with an overflow pipe 74 for adjusting the water level of the water receiving tank 71, and the drain tank 61 is configured such that the water level in the drain tank 61 is lower than the upper opening edge of the water test tank 81 and the lower surface opening of the drain tank 61. A drain pipe 65 for adjusting to a position higher than the edge is connected.
請求３項記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項２記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記給水管７２、オーバーフロー管７４及び排水管６１はいずれも受水槽７１に対し着脱可能に構成されていることを特徴とする。
An odor detection device for detecting a small amount of mold odor substance according to claim 3 is an odor detection device for detecting a small amount of mold odor substance according to claim 2,
The water supply pipe 72, the overflow pipe 74, and the drain pipe 61 are all configured to be detachable from the water receiving tank 71.
請求項４記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項１〜３のいずれか１項に記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記検水管８２の先端開口部には原水７０を臭気筒１００の内壁面方向へ吐出する複数の小孔８３ａを側面周縁に備えた噴水キャップ８３が装着されていることを特徴とする。
An odor detection device for detecting a slight mold odor substance or the like according to claim 4 is a odor detection device for detecting a trace mold odor substance or the like according to any one of claims 1 to 3,
A fountain cap 83 having a plurality of small holes 83a on a side edge thereof for discharging the raw water 70 toward the inner wall surface of the odor cylinder 100 is attached to an opening at the tip end of the water test pipe 82.
請求項５記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項１〜４のいずれか１項に又は２記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記給水管７２と検水管８２の途中には受水槽７１への原水７０の流量を調整する給水バルブ７３を備え、
前記検水管８２の途中には臭気筒１００への原水７０の流量を調整する検水バルブ７６を備えていることを特徴とする。
An odor detection device for detecting a minute mold odor substance or the like according to claim 5 is a odor detection device for detecting a minute mold odor substance or the like according to any one of claims 1 to 4 or 2,
A water supply valve 73 for adjusting the flow rate of the raw water 70 to the water receiving tank 71 is provided in the middle of the water supply pipe 72 and the water test pipe 82,
The water sample pipe 82 is provided with a water sample valve 76 for adjusting the flow rate of the raw water 70 to the odor cylinder 100 in the middle thereof.
請求項６記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項１〜５のいずれか１項に記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記ブロワー９２はエアー吸い込み口以外は密閉されたエアー槽９１内に収容され、ブロワー９２の周囲を活性炭９３を入れた数個の袋で囲い込んでいることを特徴とする。
An odor detection device for detecting a minute mold odor substance or the like according to claim 6 is a odor detection device for detecting a minute mold odor substance or the like according to any one of claims 1 to 5,
The blower 92 is housed in a closed air tank 91 except for the air suction port, and is characterized in that the periphery of the blower 92 is surrounded by several bags containing activated carbon 93.
請求項７記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項６記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記エアー槽９１は排水槽６１の下部に配置されていることを特徴とする。
An odor detection device for detecting a slight mold odor substance according to claim 7 is a odor detection device for detecting a small mold odor substance according to claim 6,
The air tank 91 is arranged below the drain tank 61.
請求項８記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項１〜７のいずれか１項に記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記臭気筒１００の上部先端には臭気筒１００内に溜まった油臭等の異臭を強制排出する排気フアン１１０が設置されていることを特徴とする。
An odor detection device for detecting a slight mold odor substance or the like according to claim 8 is a odor detection device for detecting a trace mold odor substance or the like according to any one of claims 1 to 7,
An exhaust fan 110 for forcibly discharging an unusual odor such as an oily odor accumulated in the odor cylinder 100 is provided at an upper end of the odor cylinder 100.
請求項９記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項１〜８のいずれか１項に記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記臭い検出装置と臭いセンサ制御装置２を通信ケーブル４で接続し、臭いセンサ制御装置２でカビ臭物質等を検知するように構成されていることを特徴とする。
An odor detection device for detecting a slight mold odor substance or the like according to claim 9 is a odor detection device for detecting a trace mold odor substance or the like according to any one of claims 1 to 8,
The odor detection device and the odor sensor control device 2 are connected by a communication cable 4, and the odor sensor control device 2 is configured to detect mold odor substances and the like.
請求項１０記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項１〜９のいずれか１項に記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記微量なカビ臭物質等を検知する臭い検出装置は、魚類による水質自動監視装置内に備えた臭いセンサ制御装置２に送り、該臭いセンサ制御部でカビ臭物質等を検知するように構成されていることを特徴とする。
An odor detection device for detecting a slight mold odor substance or the like according to claim 10 is a odor detection device for detecting a trace mold odor substance or the like according to any one of claims 1 to 9,
The odor detection device for detecting a trace amount of mold odor substance is sent to the odor sensor control device 2 provided in the automatic water quality monitoring device for fish, and the odor sensor control section detects the mold odor substance and the like. It is characterized by having.
請求項１１記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項９又は１０記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記臭いセンサ制御装置２で検出されたカビ臭物質等検知データを通信ケーブルでデータ表示パソコン３に送信するように構成されていることを特徴とする。
An odor detection device for detecting a slight mold odor substance or the like according to claim 11 is a odor detection device for detecting a small mold odor substance or the like according to claim 9 or 10,
It is characterized in that it is configured to transmit detection data such as mold odor substances detected by the odor sensor control device 2 to the data display personal computer 3 via a communication cable.
本発明の微量なカビ臭物質等を検知する臭い検出装置では、上述のように、検水槽８１内に落水した原水７０にブロワー９２でエアーを吹き込んでバブル９５を発生させることで、発生したバブル９５が水面上ではじけて気化した微量カビ臭が嗅気管１０１内を上昇し、臭気キャップ１０２の臭気孔１０３から臭い室１００ａ内に放出されて半導体センサ素子１０６に付着することで原水７０に含まれる微量なカビ臭物質等を検知することができる。
また、検水槽８１及び排水槽６１を受水槽７１より低い位置に配置することで、落差により検水槽８１に安定した水量を供給することができる。
また、臭気筒１００内を上下に仕切る仕切り板１０８の一部には臭気筒１００の上方の排気室１００ｂに通じる通気孔が設けられることで、微量なカビ臭を含むエアーを通気孔から臭気筒１００外に緩やかに排気することができ、これにより微量なカビ臭を含むエアーを臭い室１００ａ内に一時的に保持し、半導体センサ素子１０６で確実に微量なカビ臭物質等を検知することができる。
In the odor detection device of the present invention for detecting a slight amount of moldy odor substance or the like, as described above, the bubble 95 is generated by blowing air from the blower 92 into the raw water 70 dropped into the water test tank 81. A small amount of mold odor 95 that has popped and evaporated on the water surface rises in the odor tube 101, is released from the odor hole 103 of the odor cap 102 into the odor chamber 100 a and adheres to the semiconductor sensor element 106, and is included in the raw water 70. Trace moldy odor substances and the like can be detected.
In addition, by disposing the water test tank 81 and the drainage tank 61 at a position lower than the water receiving tank 71, a stable amount of water can be supplied to the water test tank 81 due to a head drop.
Further, a part of the partition plate 108 that vertically divides the inside of the odor cylinder 100 is provided with a ventilation hole communicating with the exhaust chamber 100b above the odor cylinder 100, so that air containing a small amount of mold odor is supplied from the ventilation hole to the odor cylinder. 100 can be gently exhausted to the outside, whereby air containing a slight amount of mold odor can be temporarily held in the odor chamber 100a, and the semiconductor sensor element 106 can reliably detect a small amount of mold odor substance and the like. it can.
また、排水槽６１には、排水槽６１内の水位を検水槽８１の上面開口縁部より低く排水槽６１の下面開口縁部より高い位置に調整する排水管６５が接続されることで、遮断槽６２の底面は解放されているが原水７０で密閉状態を保たれることで外部からに異臭の侵入を防御し、微量なカビ臭を含むエアーを遮断槽６２内に溜め込むことができる。また、バブル９５で気化したエアーのうち臭気管１０１に上昇しない他の残りのエアーは遮断槽６２に充満することで空気圧がかかり外部からの異臭を遮断することができる効果があり、さらに微量カビ臭が臭気管１０１を上昇させるエアー圧をかける効果もある。 Further, the drainage tank 61 is connected to a drainage pipe 65 for adjusting the water level in the drainage tank 61 to a position lower than the upper opening edge of the water test tank 81 and higher than the lower opening edge of the drainage tank 61, thereby shutting off. Although the bottom surface of the tank 62 is open, the sealed state is maintained by the raw water 70 to prevent the invasion of a strange odor from the outside, and the air containing a small amount of mold odor can be stored in the shut-off tank 62. The remaining air that does not rise to the odor tube 101 out of the air vaporized by the bubble 95 is filled with the shutoff tank 62 to exert an air pressure, so that an odor from the outside can be cut off. The odor also has the effect of applying air pressure to raise the odor tube 101.
また、前記給水管７２、オーバーフロー管７４及び排水管６１はいずれも受水槽７１に対し着脱可能に構成されることで、魚類による水質自動監視装置内等からの臭い検出装置１の取り出しや装着などを簡易にし、臭い検出装置１のメンテナンスを容易にすることができる。 Further, the water supply pipe 72, the overflow pipe 74, and the drain pipe 61 are all configured to be detachable from the water receiving tank 71, so that the odor detection device 1 is taken out or attached from the inside of the automatic water quality monitoring device by fish. And the maintenance of the odor detection device 1 can be facilitated.
また、前記検水管８２の先端開口部には原水７０を臭気筒１００の内壁面方向へ吐出する複数の小孔８３ａを側面周縁に備えた噴水キャップ８３が装着されることで、小孔８３ａから吐出された原水７０を臭気管１０１の内壁を伝って検水槽８１に緩やかに流れ落とすことができる。 Further, a fountain cap 83 having a plurality of small holes 83a on a side peripheral edge for discharging the raw water 70 in the direction of the inner wall surface of the odor cylinder 100 is attached to the opening at the distal end of the water test tube 82. The discharged raw water 70 can flow down the inner wall of the odor tube 101 to the water test tank 81 gently.
また、前記給水管７２と検水管８２の途中には受水槽７１への原水７０の流量を調整する給水バルブ７３を備え、前記検水管８２の途中には臭気筒１００への原水７０の流量を調整する検水バルブ７６を備えることで、両バルブの微調整により原水７０の水量と流速の流れを安定化させることができる。 Further, a water supply valve 73 for adjusting the flow rate of the raw water 70 to the water receiving tank 71 is provided in the middle of the water supply pipe 72 and the water test pipe 82, and the flow rate of the raw water 70 to the odor cylinder 100 is provided in the middle of the water test pipe 82. By providing the water detection valve 76 to be adjusted, the flow of the raw water 70 and the flow of the flow velocity can be stabilized by fine adjustment of both valves.
また、前記ブロワー９２はエアー吸い込み口以外は密閉されたエアー槽９１内に収容され、ブロワー９２の周囲を活性炭９３を入れた数個の袋で囲い込む、ことで、活性炭９３で異臭を除去された純空気でバブル９５を発生させることができる。 Further, the blower 92 is housed in a sealed air tank 91 except for the air suction port, and by surrounding the blower 92 with several bags containing activated carbon 93, the odor is removed by the activated carbon 93. Bubbles 95 can be generated with pure air.
また、前記エアー槽９１は排水槽６１の下部に配置されることで、スペースを有効利用することができる。 Further, since the air tank 91 is disposed below the drain tank 61, the space can be effectively used.
また、前記臭気筒１００の上部先端には臭気筒１００内に溜まった油臭等の異臭を強制排出する排気フアン１１０が設置されることで、強い異臭例えば油臭などが流入したとき強制的に外部に臭いを放出するときや異臭が充満したり微量カビ臭が蓄積されて高い濃度になった時など臭い検出装置１を初期値に戻す時に利用することができる。なお、排気フアン１１０は微量カビ臭を検知する操作時は回転を停止状態にしておく必要がある。 Further, an exhaust fan 110 for forcibly discharging an unpleasant odor such as an oily odor accumulated in the odorous cylinder 100 is provided at an upper end of the odorous cylinder 100, so that a strong odor, such as an oily odor, is forcibly applied. It can be used when the odor detection device 1 is returned to the initial value, for example, when the odor is released to the outside, when an unpleasant odor is filled, or when a trace amount of mold odor is accumulated and becomes a high concentration. The rotation of the exhaust fan 110 must be stopped during the operation for detecting a slight mold odor.
また、前記臭い検出装置１と臭いセンサ制御装置２を通信ケーブル４で接続することで、臭いセンサ制御装置２でカビ臭物質等を検知することができる。 Further, by connecting the odor detection device 1 and the odor sensor control device 2 with the communication cable 4, the odor sensor control device 2 can detect mold odor substances and the like.
また、前記微量なカビ臭物質等を検知する臭い検出装置１は、魚類による水質自動監視装置内に備えた臭いセンサ制御装置２に送り、該臭いセンサ制御部でカビ臭物質等を検知するように構成することで、水質自動監視装置内で微量なカビ臭物質等を検知することができる。 Further, the odor detection device 1 for detecting the trace amount of mold odor substance and the like is sent to the odor sensor control device 2 provided in the automatic water quality monitoring device for fish so that the odor sensor control section detects the mold odor substance and the like. With this configuration, it is possible to detect a slight amount of moldy odor substance and the like in the automatic water quality monitoring device.
また、前記臭いセンサ制御装置２で検出されたカビ臭物質等検知データを通信ケーブルでデータ表示パソコン３に送信することで、パソコン３で管理することができる。 In addition, by transmitting detection data such as mold odor substances detected by the odor sensor control device 2 to the data display personal computer 3 via a communication cable, the data can be managed by the personal computer 3.
以下に実施例を挙げ、本発明の微量なカビ臭物質等を検知する臭い検出装置について、図面を参照して詳細に説明する。 EXAMPLES Hereinafter, examples will be described in detail with reference to the drawings, with reference to the drawings.
微量なカビ臭物質等を検知する臭い検出装置１は、図１に示すように、給水管７２を介して原水７０が供給される受水槽７１と、落差をつけるために受水槽７１より低い位置に配置される排水槽６１と、排水槽６１内底部に配置されていて上面を開口した検水槽８１と、排水槽６１内上端部に配置されていて下面開口部が検水槽８１の上面開口部を覆う遮断槽６２と、排水槽６１の上面に開口部が上向きに配置され内部にセンサユニット１０５が収容された臭気筒１００と、遮断槽６２内天井部に下面開口部が検水槽８１に向けて配置された臭気管１０１と、検水槽８１内にエアーを送るエアー槽９１と、を主な構成として備えている。 As shown in FIG. 1, the odor detection device 1 for detecting a trace amount of mold odor substance is provided with a water receiving tank 71 to which raw water 70 is supplied via a water supply pipe 72 and a lower position than the water receiving tank 71 to make a head drop. , A water test tank 81 disposed at the bottom of the drain tank 61 and having an open upper surface, and a water tank disposed at the upper end of the drain tank 61 and having a lower surface opening formed at the upper surface of the water test tank 81 Tank 62 for covering the water, the odor cylinder 100 in which the opening is arranged upward on the upper surface of the drainage tank 61 and the sensor unit 105 is housed inside, and the lower opening in the ceiling inside the shielding tank 62 faces the water test tank 81. The main configuration includes an odor pipe 101 arranged in a vertical direction and an air tank 91 for sending air into the water test tank 81.
更に詳述すると、前記受水槽７１には受水槽７１の水位を調整するオーバ−フロー管７４と、図示は省略した魚類による水質自動監視装置の魚類監視水槽に原水７０を供給する魚類監視水槽管７５と、臭気管１０１内に落差により原水を供給する検水管８２が接続されている。魚類監視水槽管７５は、魚類監視水槽に給水しないときはメクラ蓋が接続されている。１ More specifically, the water receiving tank 71 is provided with an overflow pipe 74 for adjusting the water level of the water receiving tank 71, and a fish monitoring water tank pipe for supplying raw water 70 to a fish monitoring water tank of an automatic fish quality monitoring device not shown. 75 and a water test pipe 82 for supplying raw water into the odor pipe 101 by a drop. A fish lid is connected to the fish monitoring tank 75 when water is not supplied to the fish monitoring tank. 1
受水槽７１の給水管７２、オーバーフロー管７４、及び魚類監視水槽管７５はいずれも接続管とは差し込み式や着脱式にすることで魚類による水質自動監視装置内等からの臭い検出装置１の取り出しや装着などを簡易にした接続方法により臭い検出装置１のメンテナンスを容易とした。 The water supply pipe 72, the overflow pipe 74, and the fish monitoring water tank pipe 75 of the water receiving tank 71 are all plug-in or detachable with the connection pipe, so that the odor detection device 1 is taken out from the inside of the automatic water quality monitoring device by fish. The maintenance of the odor detection device 1 was facilitated by a connection method that simplified installation and the like.
検水管８２は、排水槽６１の上面、及び排水槽６１の底内面に固着している検水槽８１の側面を貫通してＬ字状に屈折し検水槽８１の上面開口部から臭気管１０１内に挿入されていて、検水管８２の先端開口部に装着された噴水キャップ８３の側面周縁に複数設けられた小孔８３ａから原水７０が臭気管１０１内に吐出され、吐出された原水７０は臭気管１０１の内壁を伝って検水槽８１に流れ落ちる構造になっている。 The water test pipe 82 penetrates the upper surface of the drainage tank 61 and the side surface of the water test tank 81 fixed to the bottom inner surface of the drainage tank 61 and is bent into an L-shape. The raw water 70 is discharged into the odor tube 101 from a plurality of small holes 83a provided on the side edge of the fountain cap 83 attached to the distal end opening of the water test tube 82, and the discharged raw water 70 has an odor. The structure is such that it flows down to the water test tank 81 along the inner wall of the pipe 101.
排水槽６１には、排水槽６１内の水位を調整する排水６５が接続されている。この水位調節管６５は、検水槽８１の上面開口縁部より低く、排水槽６１の下面開口縁部より高い位置に設けられている。 The drainage tank 61 is connected with a drainage 65 for adjusting the water level in the drainage tank 61. The water level adjusting pipe 65 is provided at a position lower than the upper opening edge of the water test tank 81 and higher than the lower opening edge of the drain tank 61.
給水管７２には検水バルブ７３、検水管８２には検水バルブ７６が設けられ、両バルブの微調整により原水７０の水量と流速の流れを安定化させる。 The water supply pipe 72 is provided with a water test valve 73, and the water test pipe 82 is provided with a water test valve 76. Fine adjustment of both valves stabilizes the flow rate and flow rate of the raw water 70.
センサユニット１０５は、臭気筒１００内を上下に仕切る仕切り板１０４の上面に取り付けられ、センサユニット１０５の半導体センサ素子１０６が仕切り板１０８で仕切られた臭気筒１００の下方の臭い室１００ａ内に露出する状態で設けられている。
図示は省略したが、仕切り板１０８には複数の通気用小孔が設けられている。
The sensor unit 105 is attached to the upper surface of a partition plate 104 that vertically partitions the inside of the odor cylinder 100, and the semiconductor sensor element 106 of the sensor unit 105 is exposed in the odor chamber 100 a below the odor cylinder 100 divided by the partition plate 108. It is provided in the state where it does.
Although not shown, the partition plate 108 is provided with a plurality of ventilation holes.
半導体センサ素子１０６の原理は、図２に示すように、Sn02半導体表面でのガス吸着による熱伝導度の変化 及び電気伝導度の変化を、白金線コイルの抵抗値の変化として測定する。白金線コイルに流れる電流によって、約300?450℃に保たれたSn02半導体は、表面で酸素分子を吸着し、電子を捉らえ抵抗値が高い状態にある。そこに還元性ガスが吸着すると、酸化反応により捉えていた電子をSn02半導体中に放出し抵抗値は減少する。この抵抗値の変化を臭いと関連づけて検知するもので、ガス検知器、火災報知器、飲酒運転取り締まりの検知器など広く応用されている。
半導体センサ素子１０６の検出物質の可否を検査した表（酸化スズ半導体センサの反応物質表）が下表である。検査物資は浄水処理等で関連がある物質を選んで行った。
The table below is a table (a table of reactants of the tin oxide semiconductor sensor) in which the detection of the detection substance of the semiconductor sensor element 106 is performed. Inspection materials were selected by selecting substances that are related to water treatment.
図１に戻り、臭い室１００ａ内には、下端開口部が臭気管１０内と連通する臭気キャップ１０２が配置され、この臭気キャップ１０２の側面周縁には、複数の臭気孔１０３が設けられている。
臭気キャップ１０２と半導体センサ素子１０６の距離は近く空間も狭少が最適で数ミリメートルの狭い距離で臭気孔１０３から微量カビ臭が半導体センサ素子１０６に付着する。
微量なカビ臭は揺らめくような動きのため半導体センサ素子１０６に有効的に付着させるには臭気孔１０３は側面に4個程度開口が最適である。
臭気筒１００の上部先端には臭気筒１００内に溜まった油臭等の異臭を強制排出する排気フアン１１０が設置されている。
Returning to FIG. 1, an odor cap 102 having a lower end opening communicating with the odor pipe 10 is disposed in the odor chamber 100 a, and a plurality of odor holes 103 are provided on a side edge of the odor cap 102. .
The distance between the odor cap 102 and the semiconductor sensor element 106 is short and the space is optimally small.
Since a small amount of mold odor fluctuates, the odor hole 103 is optimally formed with about four openings on the side surface to effectively adhere to the semiconductor sensor element 106.
At the top end of the odor cylinder 100, an exhaust fan 110 for forcibly discharging an unpleasant odor such as oily odor accumulated in the odor cylinder 100 is provided.
エアー槽９１は、検水槽８１内に供給された原水７０内上部にエアーを供給してバブル９５を発生させるための槽である。
エアー槽９１は、密閉された内部にブロワー９２を設置しブロワー９２で吸い込み口から吸い込む空気を純空気にするために周囲を活性炭９３を入れた数個の袋で囲い込みブロワー９２の吐出し口に接続されたエアー管９４を検水槽８１に引き込みバブル９５を発生させる。
The air tank 91 is a tank for supplying air to the upper part of the raw water 70 supplied to the water detecting tank 81 to generate bubbles 95.
The air tank 91 is provided with a blower 92 in a sealed interior, and is surrounded by several bags containing activated carbon 93 in order to make the air sucked from the suction port by the blower 92 into pure air. The connected air pipe 94 is drawn into the water test tank 81 to generate a bubble 95.
臭い検出装置１のセンサユニット１０５と臭いセンサ制御装置２との間が通信信号ケーブル４で接続されている。
臭いセンサ制御装置２は記録機能が備わっていないので臭いセンサ制御装置２からデータを出力し通信ケーブル４でデータ表示パソコン３が接続される構成とした。
A communication signal cable 4 connects between the sensor unit 105 of the odor detection device 1 and the odor sensor control device 2.
Since the odor sensor control device 2 does not have a recording function, data is output from the odor sensor control device 2 and the data display personal computer 3 is connected with the communication cable 4.
半導体センサ素子１０６で検知した臭い信号は信号ケーブル４により臭いセンサ制御装置２に入力される。臭いセンサ制御装置２によって臭い信号はデジタル数値に変換し、図３に示すように、臭いセンサ制御装置２の表面に臭い値と臭いレベルを表示し感度ボリューム調整と感度レンジ調整ができるツマミを設置した。
臭いセンサ制御装置２の変換したデジタル信号は検知データを表示するパソコン３（図４）にRS232Cでテラターム信号を送りパソコン画面（図５）に臭いレベルを視覚的に表示し通常の臭気より高い臭気を検知したときは当該パソコン画面上で臭気異常の文字の点滅と警報音で知らせる。
臭い検出装置１と臭いセンサ制御装置２は、図６に示すように、魚類による水質自動監視装置 に組み込まず別のキャビネットに収納して臭いセンサ単独の微量なカビ臭物質等を検知する装置としても使用できる。
The odor signal detected by the semiconductor sensor element 106 is input to the odor sensor control device 2 via the signal cable 4. The odor signal is converted into a digital value by the odor sensor control device 2, and as shown in FIG. 3, a knob is provided on the surface of the odor sensor control device 2 for displaying the odor value and the odor level to adjust the sensitivity volume and the sensitivity range. did.
The converted digital signal of the odor sensor control device 2 sends a teraterm signal by RS232C to the personal computer 3 (FIG. 4) for displaying the detection data and visually displays the odor level on the personal computer screen (FIG. 5), and the odor is higher than the normal odor. Is detected, the odor abnormality character is flashed on the personal computer screen and an alarm sound is issued.
As shown in FIG. 6, the odor detection device 1 and the odor sensor control device 2 are housed in a separate cabinet without being incorporated in the automatic water quality monitoring device for fish, and are used as devices for detecting trace amounts of moldy odor substances and the like of the odor sensor alone. Can also be used.
次に、本発明の作用・効果を説明する。
先ず、給水管７２から受水槽７１内に供給された原水７０は、検水管８２を経由し、噴水キャップ８３の側面周縁に複数設けられた小孔８３ａから臭気筒１００内に吐水し、臭気筒１００の内周面に沿って上部が開口する検水槽８１内に落水する。
なお、受水槽７１は排水槽６１や検水槽８１より高い位置で高低差をつけることが噴水キャップ８３から原水７０を吐出すために必要とする。
検水槽８１が満杯になり溢れると下部が解放された遮断槽６２の原水７０は排水槽６１の下部に溜まり水位調節用の排水管６５から排出されることで、排水槽６１の水位が検水槽８１の水位より低い位置に維持される。
Next, the operation and effect of the present invention will be described.
First, the raw water 70 supplied from the water supply pipe 72 into the water receiving tank 71 passes through the water test pipe 82, and is discharged into the odor cylinder 100 from a plurality of small holes 83 a provided on the side edge of the fountain cap 83. The water falls into a water test tank 81 whose upper part is open along the inner peripheral surface of 100.
Note that the water receiving tank 71 needs to have a height difference at a position higher than the drainage tank 61 and the water detecting tank 81 in order to discharge the raw water 70 from the fountain cap 83.
When the water test tank 81 is full and overflows, the raw water 70 in the shutoff tank 62 whose lower part is released is collected in the lower part of the drain tank 61 and discharged from the drain pipe 65 for adjusting the water level, so that the water level of the drain tank 61 is measured. It is maintained at a position lower than the water level of 81.
一方、エアー槽９１では、活性炭９３で異臭を除去された純空気をブロワー９２で吸い込み、エアー管９４を介して検水槽８１の上限水位の数センチメートル下の位置からバブル９５を発生させることで、発生したバブル９５が水面上ではじけて気化した微量カビ臭が嗅気管１０１内を上昇し、臭気キャップ１０２の数個の臭気孔１０３から微量カビ臭が臭い室１００ａ内に放出され半導体センサ素子１０６に付着する。
その際、噴水キャップ８３からの原水７０の吐出水量が適量でないと微量なカビ臭が検知できないので、検水バルブ７６により検水管８２の流量を微調整する。
なお、臭い室１００ａ内の微量カビ臭を含む空気は、仕切り板１０８の複数の通気用小孔から臭気筒１００の排気室１００ｂを経由して上端開口部から排気される。
On the other hand, in the air tank 91, pure air from which the unpleasant odor has been removed by the activated carbon 93 is sucked by the blower 92, and bubbles 95 are generated from a position several centimeters below the upper limit water level of the test tank 81 via the air pipe 94. When the generated bubbles 95 burst on the water surface and evaporate, a small amount of mold odor rises in the odor tube 101, and a few mold odors 103 of the odor cap 102 release a small amount of mold odor into the odor chamber 100a. Attach to 106.
At this time, if the discharge amount of the raw water 70 from the fountain cap 83 is not appropriate, a slight mold odor cannot be detected.
The air containing a slight amount of mold odor in the odor chamber 100a is exhausted from the plurality of small holes for ventilation of the partition plate 108, through the exhaust chamber 100b of the odor cylinder 100, and from the upper end opening.
半導体センサ素子１０６で検知した臭い信号は信号ケーブル４により臭いセンサ制御装置２に入力され、臭いセンサ制御装置２によって臭い信号はデジタル数値に変換し、検知データを表示するパソコン３にRS232Cでテラターム信号を送りパソコン画面に臭いレベルを視覚的に表示し通常の臭気より高い臭気を検知したときは当該パソコン画面上で臭気異常の文字の点滅と警報音で知らせる。実物のパソコン画面が（写真７）である。 The odor signal detected by the semiconductor sensor element 106 is input to the odor sensor control device 2 via the signal cable 4, and the odor signal is converted into a digital value by the odor sensor control device 2, and the PC 3 displaying the detection data is transmitted to the personal computer 3 by the RS232C teraterm signal. The odor level is visually displayed on the personal computer screen, and when an odor higher than the normal odor is detected, the odor abnormality character is flashed on the personal computer screen and an alarm sound is given. The actual PC screen is (Photo 7).
微量カビ臭を検知するには給水バルブ７３と検水バルブ７６を調整しながら臭いセンサ制御装置２やデータ表示パソコン(写真６)の臭い数値で可能となる。前記のデータ表示パソコン３(写真６)の画面(写真７)で示すようにデータは臭い値（画面では３８１）、臭いのレベルが注意１、注意２、注意３、警告１、警告２、警告３、異常１、異常２と低レベルから高レベルに表示ができる。低レベルから高レベルの注意１、注意２、注意３、警告１、警告２、警告３、異常１、異常２はアラーム値の数値があらかじめ設定することでその数値に達したときに表示が出る。高レベルになるとブザー音が出る。注意は緑色で3段階、警告は黄色で3段階、異常は赤色で2段階と色分けすることで一目で臭いレベルが判別できる。また臭い値のレベルはグラフでも見ることができ、臭いの変化が確認できる。また右側には1分毎に臭い値（ｍV）の数値が表示できパソコンが監視状態にあるのか無いのかは丸ランプで判別できる等パソコン３による監視と記録ができる。 To detect a slight amount of mold odor, the odor value of the odor sensor control device 2 and the data display personal computer (Photo 6) can be obtained while adjusting the water supply valve 73 and the water detection valve 76. As shown on the screen (Photo 7) of the data display personal computer 3 (Photo 6), the data has an odor value (381 in the screen) and the odor level is Caution 1, Caution 2, Caution 3, Warning 1, Warning 2, Warning 2. 3, abnormal 1 and abnormal 2 can be displayed from low level to high level. Precautions 1, Warning 2, Warning 3, Warning 1, Warning 2, Warning 1, Abnormal 1, Abnormal 2 from low level to high level are displayed when the alarm value reaches its value by setting it in advance . A buzzer sounds at high levels. The odor level can be determined at a glance by classifying the warning into three stages in green, the warning in three stages in yellow, and the abnormal in two stages in red. Also, the level of the odor value can be seen in the graph, and the change in the odor can be confirmed. On the right side, the numerical value of the odor value (mV) can be displayed every minute, and whether or not the personal computer is in the monitoring state can be discriminated by a round lamp, and monitoring and recording by the personal computer 3 can be performed.
カビ臭であるジェオスミンや2-メチルイソボルネオールのうち本発明装置で臭い値の試験として市販品の2-メチルイソボルネオール標準液（富士フイルム和光純薬株式会社製）を使用し１０ＰＰＴまで希釈した試験がデータ表１である。本試験においてもデータ表１によれば２−メチルイソボルネオール（２−ＭＩＢ）の濃度１０ＰＰＴで水温１８．２℃、気温１９．４℃、湿度６８％の条件で２−ＭＩＢの１０ＰＰＴを連続して流した時の臭い値の測定において投入開始時の臭いセンサ制御装置２の測定した臭い値は２４２ｍＶであつたが約４分後には２５０ｍＶまで上昇し２−ＭＩＢ、１０ＰＰＴで臭い値は２５０ｍＶを検出した。この時の外気ニオイ値は４４２ｍＶであることから本発明の分析容器は外気の臭いを遮断し原水中のカビ臭２−ＭＩＢを検出したことが証明されている。 Test for diluting to 10 PPT using a commercially available 2-methylisoborneol standard solution (manufactured by FUJIFILM Wako Pure Chemical Industries, Ltd.) as a test for the odor value of the mold odor of geosmin and 2-methylisoborneol in the apparatus of the present invention. Is data table 1. According to the data in Table 1, the concentration of 2-methylisoborneol (2-MIB) was 10 PPT and the water temperature was 18.2 ° C., the temperature was 19.4 ° C., and the humidity was 68%. In the measurement of the odor value when flowing, the odor value measured by the odor sensor control device 2 at the start of injection was 242 mV, but increased to 250 mV after about 4 minutes, and the odor value was 250 mV with 2-MIB and 10 PPT. Detected. Since the outside air odor value at this time was 442 mV, it was proved that the analysis container of the present invention blocked the smell of the outside air and detected the mold odor 2-MIB in the raw water.
また、図７に示すように、２−ＭＩＢの１０ＰＰＴを連続して流した時の臭い値の測定において投入開始時の臭いセンサ制御装置２の測定した臭い値は２４２ｍＶであつたが約４分後には２５０ｍＶまで上昇し２−ＭＩＢ、１０ＰＰＴで臭い値は２５０ｍＶを検出した。この時の外気ニオイ値は４４２ｍＶであることから本発明の分析容器は外気の臭いを遮断し原水中のカビ臭２−ＭＩＢを検出したことが証明された。 Further, as shown in FIG. 7, in the measurement of the odor value when 10 PPT of 2-MIB was continuously flown, the odor value measured by the odor sensor control device 2 at the start of injection was 242 mV, but was about 4 minutes. Later, it increased to 250 mV, and the odor value was detected at 250 mV at 2-MIB and 10 PPT. Since the outside air odor value at this time was 442 mV, it was proved that the analysis container of the present invention blocked the smell of outside air and detected the mold odor 2-MIB in the raw water.
本発明は、水道法の第２３条１項の給水の緊急停止のための魚類による自動監視装置に具備することで毒物は魚類行動で検知し臭いは半導体センサでカビ臭物質等を検知することで水道水を利用する住民に安全で美味しい水を亜充てることができる、また水道水を製造する自治体や団体の水質担当者の精神的・肉体的な負担を軽減し、臭い除去剤を少なくすることで経済的な損失を軽減する。水道事業体以外にも飲料水メーカーや食品メーカーなど水を使用する産業分野に利用が可能である。 The present invention provides an automatic monitoring device for fish for emergency stoppage of water supply according to Article 23, paragraph 1 of the Water Supply Law, whereby toxic substances are detected by fish behavior and odors are detected by semiconductor sensors for mold odor substances and the like. Can supply safe and delicious water to residents who use tap water, reduce the mental and physical burden on water quality officials of local governments and organizations that produce tap water, and reduce odor removers. This will reduce economic losses. In addition to water utilities, it can be used in industrial fields that use water, such as drinking water manufacturers and food manufacturers.
1 臭い検出装置
2 臭いセンサ制御装置
3 データ表示パソコン
4 信号ケーブル
61 排水槽
62 遮断槽
63 支柱
64 上限水位
65 Ｎｏ2排水管
70 原水
71 受水槽
72 給水管
73 給水バルブ
74 オーバーフロー管
75 魚類監視水槽管
76 検水バルブ
81 検水槽
82 検水管
83 噴水キャップ
83a 小孔
91 エアー槽
92 ブロワー
93 活性炭
94 エアー管
95 バブル
100 臭気筒
100a 臭い室
100b 排気室
101 臭気管
102 臭気キャップ
103 臭気孔
105 センサユニット
106 半導体センサ素子
108 仕切り板
110 排気ファン
1 Odor detector
2 Odor sensor control device
3 Data display PC
4 Signal cable
61 Drainage tank
62 Shuttle tank
63 posts
64 Upper water level
65 No2 drain pipe
70 Raw water
71 Receiving tank
72 Water pipe
73 Water supply valve
74 Overflow pipe
75 Fish monitoring tank
76 Water sample valve
81 Water test tank
82 water pipe
83 fountain cap
83a small hole
91 Air tank
92 Blower
93 activated carbon
94 air tube
95 Bubble
100 odor cylinder
100a Odor room
100b exhaust chamber
101 Odor tube
102 Odor cap
103 odor pore
105 Sensor unit
106 Semiconductor sensor element
108 Divider
110 exhaust fan
請求項３記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項２記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記給水管７２とオーバーフロー管７４はいずれも受水槽７１に対し着脱可能に構成されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置
An odor detection device for detecting a small amount of mold odor substance according to claim 3 is a odor detection device for detecting a small amount of mold odor substance according to claim 2,
The water supply pipe 72 and the overflow pipe 74 are both configured to be detachable from the water receiving tank 71. An odor detection device for detecting a slight amount of moldy odor substance and the like.
請求項１０記載の微量なカビ臭物質等を検知する臭い検出装置は、請求項１〜９のいずれか１項に記載の微量なカビ臭物質等を検知する臭い検出装置において、
前記微量なカビ臭物質等を検知する臭い検出装置の半導体センサ素子１０６で検出された微量なカビ臭物質等の信号は、魚類による水質自動監視装置内に備えた臭いセンサ制御装置２に送り、該臭いセンサ制御装置２でカビ臭物質等を検知するように構成されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。
An odor detection device for detecting a slight mold odor substance or the like according to claim 10 is a odor detection device for detecting a trace mold odor substance or the like according to any one of claims 1 to 9,
The signal of the trace mold odor substance and the like detected by the semiconductor sensor element 106 of the odor detection device for detecting the trace mold odor substance and the like is sent to the odor sensor control device 2 provided in the automatic water quality monitoring device for fish. An odor detection device for detecting a slight amount of mold odor material, wherein the odor sensor control device 2 is configured to detect a mold odor material and the like.
また、前記給水管７２とオーバーフロー管７４はいずれも受水槽７１に対し着脱可能に構成されることで、魚類による水質自動監視装置内等からの臭い検出装置１の取り出しや装着などを簡易にし、臭い検出装置１のメンテナンスを容易にすることができる。
In addition, since the water supply pipe 72 and the overflow pipe 74 are both configured to be detachable from the water receiving tank 71, it is easy to take out or attach the odor detection device 1 from inside the automatic water quality monitoring device by fish, Maintenance of the odor detection device 1 can be facilitated.
また、前記微量なカビ臭物質等を検知する臭い検出装置１の半導体センサ素子１０６で検出された微量なカビ臭物質等の信号は、魚類による水質自動監視装置内に備えた臭いセンサ制御装置２に送り、該臭いセンサ制御部でカビ臭物質等を検知するように構成することで、水質自動監視装置内で微量なカビ臭物質等を検知することができる。
Further, the signal of the minute mold odor substance and the like detected by the semiconductor sensor element 106 of the odor detection device 1 for detecting the minute mold odor substance and the like is transmitted to the odor sensor control device 2 provided in the automatic water quality monitoring device for fish. And the odor sensor control unit is configured to detect a moldy odor substance and the like, so that a small amount of moldy odor substance and the like can be detected in the automatic water quality monitoring device.
Claims (11)
前記センサユニット１０５は、臭気筒１００内を上下に仕切る仕切り板１０８の上面に取り付けられ、センサユニット１０５の半導体センサ素子１０６が仕切り板１０８で仕切られた臭気筒１００の下方の臭い室１００ａ内に露出する状態で設けられ、
前記臭い室１００ａ内には、臭気筒１００内に連通する臭気キャップ１０２が設けられ、該臭気キャップ１０２の側面周縁には複数の臭気孔１０３が設けられ、
前記仕切り板１０８の一部には臭気筒１００の上方の排気室１００ｂに通じる通気孔が設けられていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 A water receiving tank 71 to which raw water 70 is supplied via a water supply pipe 72, a drainage tank 61 arranged at a position lower than the water receiving tank 71 to make a drop, and a bottom arranged inside the drainage tank 61 and having an open upper surface. A water inspection tank 81, a blocking tank 62 disposed at the upper end of the drainage tank 61 and having a lower surface opening covering the upper surface opening of the water inspection tank 81, and an opening arranged on the upper surface of the drainage tank 61 so as to face upward. Odor cylinder 100 in which sensor unit 105 having semiconductor sensor element 106 is housed, odor pipe 101 in which the lower surface opening is arranged at the ceiling inside shutoff tank 62 toward water detection tank 81, and raw water in water reception tank 71 A water test tube 82 for supplying air into the odor tube 101 by a head, and a blower 92 for sending air into the water test tank 81 via an air tube 94 as main components.
The sensor unit 105 is mounted on an upper surface of a partition plate 108 that vertically partitions the inside of the odor cylinder 100, and is provided in an odor chamber 100 a below the odor cylinder 100 where the semiconductor sensor element 106 of the sensor unit 105 is partitioned by the partition plate 108. Provided in an exposed state,
In the odor chamber 100a, an odor cap 102 communicating with the odor cylinder 100 is provided, and a plurality of odor holes 103 are provided on a side edge of the odor cap 102,
An odor detection device for detecting a slight amount of moldy odor substance, wherein a part of the partition plate 108 is provided with a vent hole communicating with the exhaust chamber 100b above the odor cylinder 100.
前記受水槽７１には受水槽７１の水位を調整するオーバーフロー管７４が設けられ、排水槽６１には、排水槽６１内の水位を検水槽８１の上面開口縁部より低く排水槽６１の下面開口縁部より高い位置に調整する排水管６５が接続されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 An odor detection device for detecting a slight amount of moldy odor substance according to claim 1,
The water receiving tank 71 is provided with an overflow pipe 74 for adjusting the water level of the water receiving tank 71, and the drain tank 61 is configured such that the water level in the drain tank 61 is lower than the upper opening edge of the water test tank 81 and the lower surface opening of the drain tank 61. An odor detection device for detecting a trace amount of moldy odor substance or the like, wherein a drain pipe 65 for adjusting to a position higher than an edge is connected.
前記給水管７２、オーバーフロー管７４及び排水管６１はいずれも受水槽７１に対し着脱可能に構成されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置 An odor detection device for detecting a trace amount of moldy odor substance or the like according to claim 2,
The water supply pipe 72, the overflow pipe 74, and the drain pipe 61 are all configured so as to be detachable from the water receiving tank 71.
前記検水管８２の先端開口部には原水７０を臭気筒１００の内壁面方向へ吐出する複数の小孔８３ａを側面周縁に備えた噴水キャップ８３が装着されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 An odor detection device for detecting a trace amount of moldy odor substance or the like according to any one of claims 1 to 3,
A fountain cap 83 having a plurality of small holes 83a on a side edge thereof for discharging the raw water 70 toward the inner wall surface of the odor cylinder 100 is attached to a tip end opening of the water test pipe 82. An odor detector that detects odorous substances.
前記給水管７２と検水管８２の途中には受水槽７１への原水７０の流量を調整する給水バルブ７３を備え、
前記検水管８２の途中には臭気筒１００への原水７０の流量を調整する検水バルブ７６を備えていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 An odor detection device for detecting a trace amount of moldy odor substance or the like according to any one of claims 1 to 4,
A water supply valve 73 for adjusting the flow rate of the raw water 70 to the water receiving tank 71 is provided in the middle of the water supply pipe 72 and the water test pipe 82,
An odor detection device for detecting a slight amount of moldy odor substance or the like, characterized in that a water test valve 76 for adjusting the flow rate of the raw water 70 to the odor cylinder 100 is provided in the middle of the water test pipe 82.
前記ブロワー９２はエアー吸い込み口以外は密閉されたエアー槽９１内に収容され、ブロワー９２の周囲を活性炭９３を入れた数個の袋で囲い込んでいることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 An odor detection device for detecting a trace amount of moldy odor substance or the like according to any one of claims 1 to 5,
The blower 92 is housed in a closed air tank 91 except for the air suction port, and the surroundings of the blower 92 are surrounded by several bags containing activated carbon 93. Smell detection device to detect the smell.
前記エアー槽９１は排水槽６１の下部に配置されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 An odor detection device for detecting a slight amount of moldy odor substance or the like according to claim 6,
The odor detection device for detecting a small amount of moldy odor substance or the like, wherein the air tank 91 is disposed below the drainage tank 61.
前記臭気筒１００の上部先端には臭気筒１００内に溜まった油臭等の異臭を強制排出する排気フアン１１０が設置されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 An odor detection device for detecting a trace amount of moldy odor substance or the like according to any one of claims 1 to 7,
An odor detection device for detecting a trace amount of moldy odor substance, wherein an exhaust fan 110 for forcibly discharging an odor such as an oily odor accumulated in the odor cylinder 100 is provided at an upper end of the odor cylinder 100. .
前記臭い検出装置と臭いセンサ制御装置２を通信ケーブル４で接続し、臭いセンサ制御装置２でカビ臭物質等を検知するように構成されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 An odor detection device for detecting a trace amount of moldy odor substance according to any one of claims 1 to 8,
The odor detection device and the odor sensor control device 2 are connected by a communication cable 4, and the odor sensor control device 2 is configured to detect a mold odor material or the like. Odor detector.
前記微量なカビ臭物質等を検知する臭い検出装置は、魚類による水質自動監視装置内に備えた臭いセンサ制御装置２に送り、該臭いセンサ制御部でカビ臭物質等を検知するように構成されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 An odor detection device for detecting a minute amount of moldy odor substance or the like according to any one of claims 1 to 9,
The odor detection device for detecting a trace amount of mold odor substance is sent to the odor sensor control device 2 provided in the automatic water quality monitoring device for fish, and the odor sensor control section detects the mold odor substance and the like. An odor detection device that detects a very small amount of moldy odor substances.
前記臭いセンサ制御装置２で検出されたカビ臭物質等検知データを通信ケーブルでデータ表示パソコン３に送信するように構成されていることを特徴とする微量なカビ臭物質等を検知する臭い検出装置。 An odor detection device for detecting a trace amount of moldy odor substance or the like according to claim 9 or 10,
An odor detection device for detecting a slight amount of mold odor substance or the like, wherein the detection data is transmitted to the data display personal computer 3 via a communication cable. .
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| US11761941B2 (en) | 2020-09-09 | 2023-09-19 | Kankyo Electronics Co., Ltd | Automatic detector of oils and mold odors, and automatic poison monitor using fish with odor sensor |
| JP7379747B1 (en) | 2023-05-17 | 2023-11-14 | 環境電子株式会社 | Hybrid automatic water quality detection device that continuously measures trace amounts of poisonous substances, trace amounts of oil, and trace amounts of mold odors. |
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