JP3020082U - Sensor device - Google Patents

Sensor device

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Publication number
JP3020082U
JP3020082U JP1995006597U JP659795U JP3020082U JP 3020082 U JP3020082 U JP 3020082U JP 1995006597 U JP1995006597 U JP 1995006597U JP 659795 U JP659795 U JP 659795U JP 3020082 U JP3020082 U JP 3020082U
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Japan
Prior art keywords
sensor device
sensor
water tank
water
concentration
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JP1995006597U
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Japanese (ja)
Inventor
修治 青山
健 木村
Original Assignee
アクアス株式会社
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Abstract

(57)【要約】 【目的】 水槽24の底面部近傍に配設するセンサ装置11
に対して、水槽24の底面部に堆積する土砂などの影響を
防止する。 【構成】 センサ装置11は、検出部14を有するセンサ本
体12を備える。センサ本体12に、水槽24の底面部に接地
されてセンサ本体12の検出部14を水槽24の底面部から離
反させる接地体16を設ける。 【効果】 接地体16が水槽24の底面部に接地し、検出部
14を水槽24の底面部から上方に離反配置するため、水槽
24の底面部に堆積する土砂などの影響を防止できる。
(57) [Abstract] [Purpose] Sensor device 11 installed near the bottom of the water tank 24
On the other hand, it is possible to prevent the influence of earth and sand accumulated on the bottom surface of the water tank 24. [Structure] A sensor device 11 includes a sensor body 12 having a detection unit 14. The sensor body (12) is provided with a grounding body (16) which is grounded to the bottom surface of the water tank (24) and separates the detection unit (14) of the sensor body (12) from the bottom surface of the water tank (24). [Effect] The grounding body 16 is grounded to the bottom of the water tank 24,
Since 14 is placed away from the bottom of the water tank 24,
It is possible to prevent the influence of the earth and sand accumulated on the bottom surface of 24.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、水質などを検出するセンサ装置に関する。 The present invention relates to a sensor device that detects water quality and the like.

【0002】[0002]

【従来の技術】[Prior art]

従来、例えば、空調用や工業用の開放形冷却水循環系統においては、冷却塔を 用い、この冷却塔にて冷却水を大気と接触させて一部を蒸発させ、その蒸発潜熱 により冷却水を放熱させている。 Conventionally, for example, in an open type cooling water circulation system for air conditioning or industrial use, a cooling tower is used, and in this cooling tower the cooling water is brought into contact with the atmosphere to partially evaporate, and the latent heat of evaporation dissipates the cooling water. I am letting you.

【0003】 しかし、蒸発によって冷却水が濃縮されて濃度が濃くなり、さらには、大気中 から混入する汚染物質により水質が著しく悪化し、冷却塔や配管などにスケール 障害、腐食障害などが発生する要因となる。[0003] However, the cooling water is concentrated due to evaporation to have a high concentration, and further, the quality of water is significantly deteriorated by pollutants mixed in from the atmosphere, which causes scale failure and corrosion failure in the cooling tower and piping. It becomes a factor.

【0004】 そこで、冷却塔の下部の水槽にセンサ装置を配設して冷却水の濃度を電気的に 検出し、濃度が濃くなった場合に水を追加して一定の濃度を維持するようにした 冷却水管理システムがある。Therefore, a sensor device is provided in a water tank below the cooling tower to electrically detect the concentration of the cooling water, and when the concentration becomes high, water is added to maintain a constant concentration. There is a cooling water management system.

【0005】 ところで、冷却塔は開放形であるため、土砂などが水中に混入し、流速の比較 的遅い水槽の底面部などに堆積していく。そのため、水槽の底面部に配設される センサ装置が土砂に埋没し、正確な濃度の検出が困難になる問題がある。By the way, since the cooling tower is an open type, earth and sand and the like are mixed in water and are accumulated on the bottom surface of a water tank having a relatively low flow velocity. Therefore, there is a problem that the sensor device arranged at the bottom of the water tank is buried in the earth and sand, which makes it difficult to accurately detect the concentration.

【0006】 なお、一般的な、水中へのセンサ装置の配設手段としては、特開昭58−21 0566号公報または実開昭60−4950号公報に記載されているように、フ ロートを用いて水面から一定距離にセンサ装置を吊り下げたり、また、特開平4 −198754号公報、特開昭60−111226号公報および特開昭60−1 11227号公報に記載されているように、水上から水中にセンサ装置を吊り下 げるようにしている。As a general means for arranging the sensor device in water, a float is used as described in JP-A-58-210566 or JP-A-60-4950. It may be used to suspend the sensor device at a certain distance from the water surface, or as described in JP-A-4-198754, JP-A-60-111226 and JP-A-60-111227, The sensor device is hung from above the water.

【0007】 このように、一般的には、いずれの場合も水面を基準として比較的上層にセン サ装置が配設されることになるが、冷却塔の水槽に適用するとした場合、冷却水 の濃度が濃いと水槽の水面よりも高い位置から注水されて上層の濃度が薄まるた め、水槽の底面部近傍の濃度の検出を正確に行なえない。そのため、濃度の検出 を正確に行なうには、センサ装置を水槽の底面部近傍に配設してその水槽の底面 部近傍の冷却水の濃度を検出することが好ましい。As described above, generally, in any case, the sensor device is arranged in a relatively upper layer with respect to the water surface. However, when it is applied to the water tank of the cooling tower, the cooling water If the concentration is high, water will be injected from a position higher than the water surface of the aquarium, and the concentration of the upper layer will diminish, so the concentration near the bottom of the aquarium cannot be accurately detected. Therefore, in order to accurately detect the concentration, it is preferable to dispose the sensor device near the bottom of the water tank and detect the concentration of the cooling water near the bottom of the water tank.

【0008】[0008]

【考案が解決しようとする課題】[Problems to be solved by the device]

従来、冷却塔の水槽にセンサ装置を配設して冷却水の濃度などを検出する場合 、そのセンサ装置を水槽の底面部に配設することが好ましいが、土砂の侵入にて センサ装置が土砂に埋没し、正確な検出が困難になる問題がある。 Conventionally, when a sensor device is installed in a water tank of a cooling tower to detect the concentration of cooling water, it is preferable to install the sensor device on the bottom surface of the water tank. There is a problem that it becomes difficult to detect accurately because it is buried in.

【0009】 本考案は、このような点に鑑みなされたもので、容器などの底面部近傍に配設 しても堆積物などの影響を防止できるセンサ装置を提供することを目的とする。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sensor device capable of preventing the influence of deposits and the like even when the sensor device is arranged near the bottom surface of a container or the like.

【0010】[0010]

【課題を解決するための手段】[Means for Solving the Problems]

請求項1記載のセンサ装置は、容器の液中に配設されるセンサ装置において、 検出部を有するセンサ本体と、このセンサ本体に設けられ、前記容器の底面部に 接地されてセンサ本体の検出部を容器の底面部から離反させる接地体とを具備し ている。 The sensor device according to claim 1, wherein the sensor device is disposed in the liquid of the container, the sensor main body having a detection part, and the sensor main body provided on the sensor main body and grounded to the bottom surface part of the container to detect the sensor main body. And a grounding body that separates the part from the bottom part of the container.

【0011】 請求項2記載のセンサ装置は、請求項1記載のセンサ装置において、容器は、 冷却塔の下部の水槽である。The sensor device according to a second aspect is the sensor device according to the first aspect, wherein the container is a water tank below the cooling tower.

【0012】 請求項3記載のセンサ装置は、請求項1または2記載のセンサ装置において、 センサ本体に、センサ本体の外面より突出する接地体を設けたものである。According to a third aspect of the present invention, in the sensor device according to the first or second aspect, the sensor body is provided with a grounding body protruding from an outer surface of the sensor body.

【0013】[0013]

【作用】[Action]

請求項1記載のセンサ装置では、センサ本体の接地体が容器の底面部に接地し 、センサ本体の検出部が容器の底面部から上方の一定高さ位置に離反配置される 。 In the sensor device according to the first aspect, the grounding body of the sensor main body is grounded to the bottom surface of the container, and the detection portion of the sensor main body is arranged apart from the bottom surface of the container at a constant height position above.

【0014】 請求項2記載のセンサ装置では、請求項1記載のセンサ装置の作用に加えて、 冷却塔の下部の水槽に配設されても、水槽の底面部に堆積される土砂などの影響 が防止される。In the sensor device according to the second aspect, in addition to the function of the sensor device according to the first aspect, even if the sensor device is arranged in the water tank below the cooling tower, the influence of the earth and sand accumulated on the bottom surface of the water tank, etc. Is prevented.

【0015】 請求項3記載のセンサ装置では、請求項1または2記載のセンサ装置の作用に 加えて、センサ本体の外面より接地体が突出される。In the sensor device according to the third aspect, in addition to the action of the sensor device according to the first or second aspect, the grounding body is projected from the outer surface of the sensor body.

【0016】[0016]

【実施例】【Example】

以下、本考案のセンサ装置の一実施例の構成を図面を参照して説明する。 Hereinafter, a configuration of an embodiment of the sensor device of the present invention will be described with reference to the drawings.

【0017】 図2はセンサ装置11の側面図、図3はセンサ装置11の正面図を示す。センサ装 置11は、液濃度を検出するための電気導電率センサであり、細長い円筒状のセン サ本体12を有し、このセンサ本体12の一端側には複数の電極13を離間配置した検 出部14が形成され、他端側には各電極13に電気的に接続される電線を通したセン サケーブル15が接続されている。FIG. 2 is a side view of the sensor device 11, and FIG. 3 is a front view of the sensor device 11. The sensor device 11 is an electrical conductivity sensor for detecting the liquid concentration, has a long and thin cylindrical sensor body 12, and one end side of the sensor body 12 has a plurality of electrodes 13 spaced apart from each other. A projecting portion 14 is formed, and a sensor cable 15 through an electric wire electrically connected to each electrode 13 is connected to the other end side.

【0018】 センサ本体12の両端近傍には接地体16がそれぞれ固着されている。この各接地 体16は、円板状(車輪状)に形成され、中央にセンサ本体12に嵌合される嵌合孔 17が形成されている。Grounding bodies 16 are fixed near both ends of the sensor body 12, respectively. Each grounding body 16 is formed in a disk shape (wheel shape), and a fitting hole 17 into which the sensor body 12 is fitted is formed in the center.

【0019】 図1はセンサ装置11を冷却塔21へ適用した構成図を示す。冷却塔21は、空調用 や工業用の冷却水循環系統22中に配設されるものであり、冷却塔21の上部側には 冷却水と大気とを効率的に接触させるための蒸発ユニット23が配設され、冷却塔 21の下部側には冷却水を受ける容器としての水槽24が配設され、水槽24内の冷却 水が冷却水循環系統22を通じて蒸発ユニット23に循環される。蒸発ユニット23の 周囲はファンカバー25で囲繞され、このファンカバー25の上面開口に大気を上方 へ排気するファン26が配設されている。FIG. 1 shows a configuration diagram in which the sensor device 11 is applied to a cooling tower 21. The cooling tower 21 is arranged in a cooling water circulation system 22 for air conditioning and industry, and an evaporation unit 23 for efficiently contacting the cooling water and the atmosphere is provided on the upper side of the cooling tower 21. A water tank 24 as a container for receiving cooling water is arranged on the lower side of the cooling tower 21, and the cooling water in the water tank 24 is circulated to the evaporation unit 23 through the cooling water circulation system 22. The periphery of the evaporation unit 23 is surrounded by a fan cover 25, and a fan 26 that exhausts the atmosphere upward is provided at the upper opening of the fan cover 25.

【0020】 そして、センサ装置11が水槽24の冷却水W中に沈められて水槽24の底面部上に 接地され、センサケーブル15が濃度を測定する冷却水管理ユニット27に接続され ている。The sensor device 11 is submerged in the cooling water W of the water tank 24 and grounded on the bottom surface of the water tank 24, and the sensor cable 15 is connected to the cooling water management unit 27 for measuring the concentration.

【0021】 次に、本実施例の作用を説明する。Next, the operation of this embodiment will be described.

【0022】 水槽24の底面部に配設されたセンサ装置11は、一対の接地体16の周面が水槽24 の底面部に接地し、センサ本体12および検出部14の中心部が水槽24の底面部から 一定の高さLに位置される。In the sensor device 11 arranged on the bottom surface of the water tank 24, the peripheral surfaces of the pair of grounding bodies 16 are grounded to the bottom surface of the water tank 24, and the central portions of the sensor body 12 and the detection portion 14 are the water tank 24. It is located at a constant height L from the bottom.

【0023】 そして、センサ装置11の検出部14の複数の電極13間に検出電流が印加され、冷 却水中の電解物質の濃度に応じて複数の電極13間の短絡が生じ、冷却水の電気伝 導率が冷却水管理ユニット27によって測定される。Then, a detection current is applied between the plurality of electrodes 13 of the detection unit 14 of the sensor device 11, a short circuit occurs between the plurality of electrodes 13 depending on the concentration of the electrolytic substance in the cooling water, and the electric power of the cooling water is reduced. The conductivity is measured by the cooling water management unit 27.

【0024】 また、冷却塔21では、水槽24内の冷却水が冷却水循環系統22を通じて蒸発ユニ ット23に循環され、ファン26による強制通風によって冷却水が大気と接触されて 一部が蒸発され、その蒸発潜熱により冷却水が放熱されて冷却される。Further, in the cooling tower 21, the cooling water in the water tank 24 is circulated to the evaporation unit 23 through the cooling water circulation system 22, and the cooling water is brought into contact with the atmosphere by forced ventilation by the fan 26 and a part thereof is evaporated. The cooling water dissipates heat by the latent heat of vaporization and is cooled.

【0025】 この蒸発によって冷却水が濃縮されて電解濃度が濃くなり、センサ装置11を介 して冷却水管理ユニット27で測定される濃度が所定濃度の達すると、水槽24に水 が追加されて一定の濃度が維持される。By this evaporation, the cooling water is concentrated to increase the electrolytic concentration, and when the concentration measured by the cooling water management unit 27 via the sensor device 11 reaches a predetermined concentration, water is added to the water tank 24. A constant concentration is maintained.

【0026】 このとき、センサ装置11が水槽24の底面部近傍に配設されているため、水の追 加によって水槽24の上層の濃度が薄まっても、水槽24の底面部近傍の濃度を正確 に検出でき、冷却塔21や配管などにスケール障害、腐食障害などが発生するのを 確実に防止できる。At this time, since the sensor device 11 is arranged in the vicinity of the bottom surface of the water tank 24, even if the concentration of the upper layer of the water tank 24 becomes thin due to the addition of water, the concentration in the vicinity of the bottom surface of the water tank 24 can be accurately measured. Therefore, it is possible to reliably prevent scale failure and corrosion failure from occurring in the cooling tower 21 and piping.

【0027】 また、冷却塔21は開放形であるため、土砂Sが水中に混入し、流速の比較的遅 い水槽24の底面部などにその土砂Sが堆積していきやすい。このとき、センサ装 置11は接地体16を介して水槽24の底面部から上方へ離反した高さ位置に配置され ているため、土砂Sが多量に堆積されないかぎり、検出部14が土砂Sに埋没する ことがなく、冷却水の濃度を正確に検出できる。Further, since the cooling tower 21 is an open type, the earth and sand S are easily mixed in the water, and the earth and sand S are likely to be deposited on the bottom portion of the water tank 24 having a relatively low flow velocity. At this time, since the sensor device 11 is arranged at a height position which is separated upward from the bottom surface of the water tank 24 via the grounding body 16, the detection unit 14 does not deposit on the sediment S unless a large amount of sediment S is accumulated. It is not buried and can accurately detect the concentration of cooling water.

【0028】 しかも、接地体16は円板状であるため、水流の変化などによって比較的容易に 転動するため、検出部14上に降り落ちてくる土砂Sが堆積するのを防止でき、冷 却水の濃度をより正確に検出できる。Moreover, since the grounding body 16 has a disc shape, the grounding body 16 rolls relatively easily due to a change in the water flow or the like, so that it is possible to prevent the sediment S falling on the detection unit 14 from being accumulated, and The concentration of waste water can be detected more accurately.

【0029】 さらに、センサ装置11が転動したとしても、接地体16が円板状でその中心部に 検出部14が配置されているため、検出部14は水槽24の底面部から常に一定の高さ Lに位置され、冷却水の濃度の検出精度が安定する。Further, even if the sensor device 11 rolls, since the grounding body 16 is disc-shaped and the detecting portion 14 is arranged at the center thereof, the detecting portion 14 is always fixed from the bottom surface of the water tank 24. It is located at the height L, and the accuracy of detecting the concentration of cooling water is stable.

【0030】 また、冷却塔21のメンテナンス時には、センサ装置11を水槽24から取り出し、 水槽24の底面部に堆積した土砂Sを取り除き、センサ装置11を水槽24の底面部に 再び載置する。During maintenance of the cooling tower 21, the sensor device 11 is taken out of the water tank 24, the sediment S accumulated on the bottom surface of the water tank 24 is removed, and the sensor device 11 is placed on the bottom surface of the water tank 24 again.

【0031】 なお、接地体16としては、センサ本体12を大径の円筒状に形成し、そのセンサ 本体12の中心軸部分に検出部14を配設するようにしても、前記実施例と同様の作 用効果を奏する。As the grounding body 16, even if the sensor main body 12 is formed in a large-diameter cylindrical shape and the detecting portion 14 is arranged on the central axis portion of the sensor main body 12, the same as in the above-described embodiment. Produce the working effect of.

【0032】 また、接地体16としては、三角形や四角形あるいは多角形などでもよく、これ らの場合には接地時の安定性を良好にできる。Further, the grounding body 16 may be a triangle, a quadrangle, a polygon, or the like, and in these cases, stability at the time of grounding can be improved.

【0033】 したがって、接地体16としては、その形状にかかわず、水槽24の底面部に接地 されたときに検出部14を水槽24の底面部から上方へ離反させることができればよ い。Therefore, regardless of the shape of the grounding body 16, it suffices if the detecting unit 14 can be separated upward from the bottom surface of the water tank 24 when it is grounded to the bottom surface of the water tank 24.

【0034】 また、センサ装置11としては、液濃度を検出するための電気導電率センサに限 らず、水温センサ、PHセンサ、イオンセンサに用いてもよい。Further, the sensor device 11 is not limited to an electric conductivity sensor for detecting the liquid concentration, but may be used for a water temperature sensor, a PH sensor, and an ion sensor.

【0035】 また、センサ装置11の配設場所は、冷却塔21の水槽24に限らず、冷却水循環系 統22中のいずれの場所に配置してもよい。The location of the sensor device 11 is not limited to the water tank 24 of the cooling tower 21, and may be located anywhere in the cooling water circulation system 22.

【0036】 また、センサ装置11の適用は、冷却水循環系統22中に限らず、各種の水中の水 質を検出に適用できる。Further, the application of the sensor device 11 is not limited to the cooling water circulation system 22, but can be applied to the detection of various water quality in water.

【0037】[0037]

【考案の効果】[Effect of device]

請求項1記載のセンサ装置によれば、センサ本体の接地体が容器の底面部に接 地し、センサ本体の検出部が容器の底面部から上方の一定高さ位置に離反配置さ れるため、検出精度を安定させることができるとともに、容器の底面部の例えば 堆積物などの影響を防止できる。 According to the sensor device of claim 1, since the grounding body of the sensor body is in contact with the bottom surface of the container, and the detecting portion of the sensor body is arranged apart from the bottom surface of the container at a constant height position above. It is possible to stabilize the detection accuracy and prevent the influence of, for example, deposits on the bottom surface of the container.

【0038】 請求項2記載のセンサ装置によれば、請求項1記載のセンサ装置の効果に加え て、冷却塔の下部の水槽にセンサ装置を配設したとき、水槽の底面部に堆積され る土砂などの影響を防止でき、正確な検出ができる。According to the sensor device of the second aspect, in addition to the effect of the sensor device of the first aspect, when the sensor device is disposed in the lower water tank of the cooling tower, it is deposited on the bottom surface of the water tank. The influence of soil and sand can be prevented and accurate detection can be performed.

【0039】 請求項3記載のセンサ装置によれば、請求項1または2記載のセンサ装置の効 果に加えて、センサ本体にこのセンサ本体の外面より突出する接地体を設けるだ けで、容易に構成できる。According to the sensor device of the third aspect, in addition to the effect of the sensor device of the first or second aspect, it is easy to provide the sensor body with a grounding body protruding from the outer surface of the sensor body. Can be configured to.

【図面の簡単な説明】[Brief description of drawings]

【図1】本考案の一実施例を示すセンサ装置を冷却塔へ
適用した構成図である。
FIG. 1 is a configuration diagram in which a sensor device according to an embodiment of the present invention is applied to a cooling tower.

【図2】同上実施例のセンサ装置の正面図の側面図であ
る。
FIG. 2 is a side view of a front view of the sensor device according to the above embodiment.

【図3】同上実施例のセンサ装置の正面図である。FIG. 3 is a front view of the sensor device according to the above embodiment.

【符号の説明】[Explanation of symbols]

11 センサ装置 12 センサ本体 14 検出部 16 接地体 21 冷却塔 24 容器としての水槽 11 Sensor device 12 Sensor body 14 Detection unit 16 Grounding body 21 Cooling tower 24 Water tank as container

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 G01N 27/28 341 A ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI technical display location G01N 27/28 341 A

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 容器の液中に配設されるセンサ装置にお
いて、 検出部を有するセンサ本体と、 このセンサ本体に設けられ、前記容器の底面部に接地さ
れてセンサ本体の検出部を容器の底面部から離反させる
接地体とを具備していることを特徴とするセンサ装置。
1. A sensor device arranged in the liquid of a container, comprising: a sensor body having a detection part; and a detection part of the sensor body provided on the sensor body and grounded to a bottom surface part of the container. A sensor device comprising: a grounding body that is separated from a bottom surface portion.
【請求項2】 容器は、冷却塔の下部の水槽であること
を特徴とする請求項1記載のセンサ装置。
2. The sensor device according to claim 1, wherein the container is a water tank below the cooling tower.
【請求項3】 センサ本体に、センサ本体の外面より突
出する接地体を設けたことを特徴とする請求項1または
2記載のセンサ装置。
3. The sensor device according to claim 1, wherein the sensor body is provided with a grounding body protruding from the outer surface of the sensor body.
JP1995006597U 1995-06-30 1995-06-30 Sensor device Expired - Lifetime JP3020082U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1995006597U JP3020082U (en) 1995-06-30 1995-06-30 Sensor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1995006597U JP3020082U (en) 1995-06-30 1995-06-30 Sensor device

Publications (1)

Publication Number Publication Date
JP3020082U true JP3020082U (en) 1996-01-19

Family

ID=43155470

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1995006597U Expired - Lifetime JP3020082U (en) 1995-06-30 1995-06-30 Sensor device

Country Status (1)

Country Link
JP (1) JP3020082U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63201498A (en) * 1987-02-17 1988-08-19 Eiichi Uratani Operation of cooling tower in cold district
JPS6430528A (en) * 1987-07-24 1989-02-01 Kaiken Kk Live fish device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63201498A (en) * 1987-02-17 1988-08-19 Eiichi Uratani Operation of cooling tower in cold district
JPS6430528A (en) * 1987-07-24 1989-02-01 Kaiken Kk Live fish device

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