JPH08155414A - Piping washing apparatus - Google Patents
Piping washing apparatusInfo
- Publication number
- JPH08155414A JPH08155414A JP6321620A JP32162094A JPH08155414A JP H08155414 A JPH08155414 A JP H08155414A JP 6321620 A JP6321620 A JP 6321620A JP 32162094 A JP32162094 A JP 32162094A JP H08155414 A JPH08155414 A JP H08155414A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning liquid
- pipe
- storage tank
- washing soln
- piping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Cleaning In General (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、配管洗浄システムに関
し、更に詳細には洗浄液による配管の洗浄に際し、洗浄
作業の能率を高めしかも洗浄液による損傷が配管に生じ
ないようにした配管洗浄システムに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe cleaning system, and more particularly, to a pipe cleaning system which enhances the efficiency of cleaning work when cleaning a pipe with a cleaning liquid and prevents damage to the pipe by the cleaning liquid. Is.
【０００２】[0002]
【従来の技術】殆どの機械設備又は化学装置には、冷却
水、燃料油等の液体或いは空気、ガス等の気体を供給
し、循環し、排出するための配管が種々、様々に設けら
れている。これらの配管、特に冷却水配管には、使用時
間の経過と共に錆が発生し、また種々の異物が堆積し
て、いわゆるスケールとなって配管の内面に付着する。
スケールが発生すると、配管内を流れる流体の圧力損失
が大きくなって、流体が流れ難くなり、またスケールに
より配管の腐食が益々進行する。2. Description of the Related Art Most mechanical equipments or chemical equipments are provided with various pipes for supplying, circulating and discharging cooling water, liquid such as fuel oil or gas such as air and gas. There is. Rust is generated in these pipes, especially in the cooling water pipes with the lapse of time, and various foreign substances are accumulated to form so-called scales and adhere to the inner surface of the pipes.
When the scale is generated, the pressure loss of the fluid flowing in the pipe becomes large, the fluid becomes difficult to flow, and the scale causes corrosion of the pipe more and more.
【０００３】そこで、図２に示すような配管洗浄システ
ム５０を使用して設備又は装置内の配管を洗浄すること
が必要になる。図２の配管洗浄システム５０は、洗浄液
を循環する循環ポンプ１２と、洗浄液溜め槽１４と、循
環ポンプ１２及び洗浄液溜め槽１４と設備又は装置Ａ内
の被洗浄配管との間を接続する配管システムとを備えて
いて、設備又は装置Ａ内の被洗浄配管に洗浄液を循環し
て洗浄する。循環ポンプ１２及び洗浄液溜め槽１４と、
被洗浄配管Ａ（以下、被洗浄配管が装備されている設備
又は装置と同じ付号を使用する）とを接続する配管シス
テムは、被洗浄配管Ａに洗浄液を送出する送出配管１６
を接続するために複数個の接続口１８Ａ〜Ｄ（図２では
４個の接続口のみを図示）を備えたポンプ吐出側ヘッダ
２０と、被洗浄配管から排出される洗浄液を戻す戻し配
管２２を接続する複数個の接続口２４Ａ〜Ｄ（図２では
４個の接続口のみを図示）を備え、かつ洗浄液溜め槽１
４に洗浄液を戻すようにした戻り側ヘッダ２６と、洗浄
液溜め槽１４から循環ポンプ１２の吸い込み口に接続さ
れたポンプ吸い込み配管２８とから構成されている。Therefore, it is necessary to clean the piping inside the equipment or the apparatus by using the piping cleaning system 50 as shown in FIG. The pipe cleaning system 50 of FIG. 2 is a pipe system that connects the circulation pump 12 that circulates the cleaning liquid, the cleaning liquid reservoir tank 14, and the circulation pump 12 and the cleaning liquid reservoir tank 14 to the pipes to be cleaned in the equipment or device A. And a cleaning liquid is circulated in the pipe to be cleaned in the facility or the device A for cleaning. A circulation pump 12 and a cleaning liquid storage tank 14,
The piping system for connecting to the to-be-cleaned pipe A (hereinafter, the same symbol as the equipment or device equipped with the to-be-cleaned pipe is used) is a delivery pipe 16 for sending the cleaning liquid to the to-be-cleaned pipe A.
A pump discharge side header 20 having a plurality of connection ports 18A to 18D (only four connection ports are shown in FIG. 2) and a return pipe 22 for returning the cleaning liquid discharged from the pipe to be cleaned. A plurality of connection ports 24A to 24D for connection (only four connection ports are shown in FIG. 2) are provided, and the cleaning liquid storage tank 1 is provided.
4, a return side header 26 for returning the cleaning liquid to the cleaning liquid 4, and a pump suction pipe 28 connected from the cleaning liquid reservoir 14 to the suction port of the circulation pump 12.
【０００４】循環ポンプ１２は、０〜１．５×１０6 Pa
の吐出圧で、被洗浄配管内を１〜３ｍの流速で洗浄液を
流せることができるポンプである。また、流量調節弁３
２と圧力計３４とを備えたバイパスライン３０が、循環
ポンプ１２の吐出側から吸い込み側に設けてある。圧力
計３４を監視しつつ流量調節弁３２の開度を調節して洗
浄液を循環ポンプ１２の吐出側から吸い込み側にバイパ
スすることにより、循環ポンプ１２の吐出圧力を被洗浄
配管の耐圧以下に低下させ、被洗浄配管の機械的損傷を
防止することができる。The circulation pump 12 is 0 to 1.5 × 10 6 Pa
It is a pump that can flow the cleaning liquid at a flow rate of 1 to 3 m in the pipe to be cleaned with the discharge pressure of. Also, the flow control valve 3
A bypass line 30 provided with 2 and a pressure gauge 34 is provided from the discharge side to the suction side of the circulation pump 12. By monitoring the pressure gauge 34 and adjusting the opening degree of the flow rate control valve 32 to bypass the cleaning liquid from the discharge side of the circulation pump 12 to the suction side, the discharge pressure of the circulation pump 12 is reduced to the pressure resistance of the pipe to be cleaned or lower. It is possible to prevent mechanical damage to the pipe to be cleaned.
【０００５】洗浄液溜め槽１４は、隔壁３６により第１
槽３８と第２槽４０に分割されている。戻り側ヘッダ２
６を経由して洗浄液溜め槽１４に戻った洗浄液は、先ず
第１槽３８に入り、そこに暫時滞留して異物等を沈降さ
せる。次いで、洗浄液は、第１槽３８から隔壁３６をオ
ーバーフローして第２槽４０に入る。ポンプ吸い込み配
管２８の入口は、第２槽４０に浸漬したフィルタ又はス
トレーナ４２を備えている。フィルタ４２は、細かなメ
ッシュサイズの金網を有し、洗浄液と共に被洗浄配管か
ら排出された錆、その他の異物をその金網で捕捉し、循
環ポンプ１２を保護すると共に錆、その他の異物が再び
被洗浄配管内に送入されることがないようにしている。The cleaning liquid storage tank 14 has a first partition wall 36.
It is divided into a tank 38 and a second tank 40. Return header 2
The cleaning liquid returned to the cleaning liquid storage tank 14 via 6 first enters the first tank 38 and temporarily stays there to settle foreign matters and the like. Next, the cleaning liquid overflows the partition wall 36 from the first tank 38 and enters the second tank 40. The inlet of the pump suction pipe 28 is equipped with a filter or strainer 42 immersed in the second tank 40. The filter 42 has a fine mesh size wire mesh, and catches rust and other foreign matters discharged from the pipe to be cleaned together with the cleaning liquid with the wire mesh, protects the circulation pump 12, and rust and other foreign materials are again covered. It is designed so that it is not sent into the cleaning pipe.
【０００６】ポンプ吐出側ヘッダ２０の接続口１８Ａ〜
Ｄは、それぞれ寸法が異なり、かつそれぞれ開閉弁４４
Ａ〜Ｄを備えている。同様に、戻り側ヘッダ２６の接続
口２４Ａ〜Ｄも、それぞれ寸法が異なり、かつそれぞれ
開閉弁４６Ａ〜Ｄを備えている。接続口の寸法が異なる
ことにより、様々な口径の被洗浄配管との接続が容易に
なる。尚、送出配管１６及び戻し配管２２は、仮の配管
であって、フレキシブルな高圧ホースを使用して、被洗
浄配管Ａと本配管洗浄システム５０との接続を容易にす
ることができる。The connection port 18A of the pump discharge side header 20
D has different dimensions, and the on-off valve 44
A to D are provided. Similarly, the connection ports 24A to 24D of the return-side header 26 also have different sizes and are provided with open / close valves 46A to 46D, respectively. Due to the different dimensions of the connection ports, it becomes easy to connect to the pipes to be cleaned having various diameters. The delivery pipe 16 and the return pipe 22 are temporary pipes, and flexible high-pressure hoses can be used to facilitate the connection between the pipe A to be cleaned and the main pipe cleaning system 50.
【０００７】[0007]
【発明が解決しようとする課題】ところで、一般に、洗
浄液の種類に応じて使用温度範囲が決められている。そ
の使用温度範囲より温度が高くなると、洗浄液の腐食性
が強くなって被洗浄配管を腐食する恐れが生じる。逆
に、温度が低くなると、洗浄液の洗浄性が低下する。し
かし、上述した従来の配管洗浄システムでは、循環ポン
プにより循環しているので、循環ポンプの回転により発
生した熱が洗浄液に伝熱されて、どうしても温度が上昇
し勝ちであって、洗浄液による被洗浄配管の腐食が問題
となる。また、冬季には洗浄液の温度が低くなって、洗
浄液の洗浄性が低下する。By the way, generally, the operating temperature range is determined according to the type of cleaning liquid. When the temperature is higher than the operating temperature range, the corrosiveness of the cleaning liquid becomes strong, and there is a risk that the pipe to be cleaned will corrode. On the contrary, when the temperature is lowered, the cleaning property of the cleaning liquid is deteriorated. However, in the above-described conventional pipe cleaning system, since the circulation pump circulates the heat, the heat generated by the rotation of the circulation pump is transferred to the cleaning liquid, and the temperature tends to rise. Piping corrosion becomes a problem. In addition, the temperature of the cleaning liquid becomes low in winter, and the cleaning performance of the cleaning liquid deteriorates.
【０００８】そこで、上述の問題に照らして、本発明の
目的は、洗浄液の温度を制御できるようにした配管洗浄
システムを提供することである。In view of the above problems, an object of the present invention is to provide a pipe cleaning system capable of controlling the temperature of the cleaning liquid.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る配管洗浄システムは、洗浄液を循環す
る循環ポンプと、洗浄液溜め槽と、洗浄液を洗浄液溜め
槽から循環ポンプ及び被洗浄配管を経て洗浄液溜め槽に
戻す接続配管とを備え、循環ポンプにより洗浄液を洗浄
液溜め槽から汲み上げ、被洗浄配管に送液し、被洗浄配
管を経て洗浄液溜め槽に戻す洗浄液の循環により、被洗
浄配管を洗浄するようにした配管洗浄システムにおい
て、洗浄液を加熱又は冷却できる洗浄液加熱／冷却装置
と、別のポンプと、洗浄液を洗浄液溜め槽から別のポン
プ及び洗浄液加熱／冷却装置を経て洗浄液溜め槽に戻す
循環配管を設けたことを特徴としている。In order to achieve the above object, a pipe cleaning system according to the present invention comprises a circulation pump for circulating a cleaning liquid, a cleaning liquid storage tank, a cleaning liquid from the cleaning liquid storage tank, a circulation pump and a cleaning target. Equipped with connecting pipes that return to the cleaning liquid reservoir via piping, the cleaning liquid is pumped from the cleaning liquid reservoir by the circulation pump, sent to the pipe to be cleaned, and returned to the cleaning liquid reservoir via the pipe to be cleaned. In a pipe cleaning system for cleaning pipes, a cleaning liquid heating / cooling device capable of heating or cooling the cleaning liquid, another pump, and a cleaning liquid storage tank from the cleaning liquid storage tank via another pump and cleaning liquid heating / cooling device It is characterized by the provision of a circulation pipe for returning to.
【００１０】洗浄液加熱／冷却装置は、洗浄液を加熱又
は冷却できる既知の装置であって、加熱する手段として
は電気ヒータ、スチームヒータ等を使用でき、また冷却
する手段としては冷却水を使用して冷却する、いわゆる
水冷却器、電子冷熱装置等を使用できる。電子冷熱器に
は、循環ポンプ組込みタイプと、別置きタイプとがあ
る。また、好適には、洗浄液溜め槽の洗浄液の温度を測
定してその温度測定値に基づき洗浄液加熱／冷却装置の
加熱又は冷却能力を調節して洗浄液温度を制御する温度
制御装置を洗浄液加熱／冷却装置に設ける。The cleaning liquid heating / cooling device is a known device capable of heating or cooling the cleaning liquid. An electric heater, a steam heater or the like can be used as a heating means, and cooling water can be used as a cooling means. A so-called water cooler, an electronic cooling device or the like for cooling can be used. There are two types of electronic refrigerators, one is a circulation pump built-in type and the other is a separate type. Further, preferably, a temperature control device for controlling the cleaning liquid temperature by measuring the temperature of the cleaning liquid in the cleaning liquid storage tank and adjusting the heating or cooling capacity of the cleaning liquid heating / cooling device based on the measured temperature value is used as the cleaning liquid heating / cooling. Installed in the device.
【００１１】洗浄液の温度が上昇すると、洗浄液の腐食
性が高くなり、配管が腐食される恐れが強い。そこで、
使用温度範囲の上限より洗浄液の温度を上昇させないよ
うに、洗浄液を冷却するのが望ましいので、本発明の好
適な実施態様では、洗浄液加熱／冷却装置が、冷却液冷
却用の電子冷熱装置であることを特徴としている。When the temperature of the cleaning liquid rises, the corrosiveness of the cleaning liquid becomes high, and there is a strong possibility that the pipe will be corroded. Therefore,
Since it is desirable to cool the cleaning liquid so as not to raise the temperature of the cleaning liquid above the upper limit of the operating temperature range, in a preferred embodiment of the present invention, the cleaning liquid heating / cooling device is an electronic cooling device for cooling the cooling liquid. It is characterized by that.
【００１２】[0012]
【作用】本発明では、洗浄液を加熱又は冷却できる洗浄
液加熱／冷却装置と別のポンプとを設け、洗浄液溜め槽
と洗浄液加熱／冷却装置との間で洗浄液を循環すること
により、洗浄液の温度を使用温度範囲内に制御できる。In the present invention, the temperature of the cleaning liquid can be controlled by providing a cleaning liquid heating / cooling device capable of heating or cooling the cleaning liquid and another pump, and circulating the cleaning liquid between the cleaning liquid storage tank and the cleaning liquid heating / cooling device. It can be controlled within the operating temperature range.
【００１３】[0013]
【実施例】以下、添付図面を参照し、実施例に基づいて
本発明をより詳細に説明する。図１は、本発明に係る配
管洗浄システムの一実施例の構成を示す概略フローシー
トである。図１に示す機器及び部品のうち図２に示すも
のと同じものには同じ符号を付し、その説明を省略す
る。図１に示すように、本実施例の配管洗浄システム１
０は、洗浄液により腐食しないような材質で作られた機
器、部品で構成されており、図２に示す配管洗浄システ
ム５０の構成に加えて、洗浄液の冷却装置６０を備えて
いる。洗浄液の冷却装置は、洗浄液を冷却する電子冷熱
器６２、洗浄液溜め槽１４の第２槽４０から電子冷熱器
６２を経て第１槽３８に洗浄液を循環する第２循環ポン
プ６４及び接続配管６６を有する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the accompanying drawings. FIG. 1 is a schematic flow sheet showing the configuration of an embodiment of the pipe cleaning system according to the present invention. Of the devices and parts shown in FIG. 1, the same parts as those shown in FIG. 2 are designated by the same reference numerals, and the description thereof will be omitted. As shown in FIG. 1, the pipe cleaning system 1 according to the present embodiment.
Reference numeral 0 denotes equipment and parts made of a material that does not corrode with the cleaning liquid, and is provided with a cleaning liquid cooling device 60 in addition to the configuration of the pipe cleaning system 50 shown in FIG. The cooling device for the cleaning liquid includes an electronic cooler 62 for cooling the cleaning liquid, a second circulation pump 64 for circulating the cleaning liquid from the second tank 40 of the cleaning liquid reservoir tank 14 to the first tank 38 via the electronic cooler 62, and a connection pipe 66. Have.
【００１４】電子冷熱器６２として、例えば循環ポンプ
組込み式の小松エレクトロニクス（株）製のモデルＥＣ
−２４０Ｂを使用できる。また、電子冷熱器の代わりに
冷水により洗浄液を冷却する水冷却器を使用しても良
い。第２循環ポンプ６４は、通常の遠心ポンプである。
尚、洗浄液としては、例えば日本ＮＣＨナショナルケム
サーチ（株）のテネケム等がある。更に、冷却装置６０
には、洗浄液の温度を制御するために、温度計６８と、
制御器７０とから構成された制御装置が設けてある。制
御器７０は、温度計６８の測定温度に基づいて電子冷熱
器６２の冷却能力を調節して洗浄液の温度を設定温度に
維持している。As the electronic cooler 62, for example, a model EC manufactured by Komatsu Electronics Co.
-240B can be used. A water cooler that cools the cleaning liquid with cold water may be used instead of the electronic cooler. The second circulation pump 64 is a normal centrifugal pump.
Examples of the cleaning liquid include Tenechem of Japan NCH National Chemsearch Co., Ltd. Further, the cooling device 60
Includes a thermometer 68 for controlling the temperature of the cleaning liquid,
A control device composed of the controller 70 is provided. The controller 70 adjusts the cooling capacity of the electronic cooling device 62 based on the temperature measured by the thermometer 68 to maintain the temperature of the cleaning liquid at the set temperature.
【００１５】以上の構成により、本実施例の配管洗浄シ
ステム１０は、洗浄液の温度を設定温度より上昇しない
ようにすることができる。本実施例において、簡単にす
るために、温度計６８及び制御器７０からなる制御装置
を省いてマニアルで電子冷熱器６２の動作を制御するよ
うにしても良い。電子冷熱器６２に加えて加熱装置、例
えば電気ヒータを設けるならば、洗浄液の温度を設定温
度に維持することができる。With the above configuration, the pipe cleaning system 10 of this embodiment can prevent the temperature of the cleaning liquid from rising above the set temperature. In the present embodiment, for simplification, the control device including the thermometer 68 and the controller 70 may be omitted, and the operation of the electronic cooling device 62 may be manually controlled. If a heating device such as an electric heater is provided in addition to the electronic cooler 62, the temperature of the cleaning liquid can be maintained at the set temperature.
【００１６】[0016]
【発明の効果】本発明によれば、洗浄液を循環して被洗
浄配管を洗浄するようにした配管洗浄システムにおい
て、洗浄液を加熱又は冷却できる洗浄液加熱／冷却装置
と、別のポンプと、洗浄液を洗浄液溜め槽から別のポン
プ及び洗浄液加熱／冷却装置を経て洗浄液溜め槽に戻す
循環配管を設け、洗浄液溜め槽と洗浄液加熱／冷却装置
との間で洗浄液を循環することにより、洗浄液の温度を
使用温度範囲内に維持することができる。本発明に係る
配管洗浄システムを使用すれば、洗浄液の温度が使用温
度範囲内に保持されるので、洗浄液による被洗浄配管の
腐食が防止される共に洗浄液の洗浄性を維持できる。よ
って、効率良く、しかも腐食の恐れなく被洗浄配管を洗
浄することができる。According to the present invention, in the pipe cleaning system in which the cleaning liquid is circulated to clean the pipe to be cleaned, the cleaning liquid heating / cooling device capable of heating or cooling the cleaning liquid, another pump, and the cleaning liquid are provided. The temperature of the cleaning liquid is used by circulating the cleaning liquid between the cleaning liquid storage tank and the cleaning liquid heating / cooling device by providing a circulation pipe that returns from the cleaning liquid storage tank to the cleaning liquid storage tank via another pump and cleaning liquid heating / cooling device. It can be maintained within the temperature range. When the pipe cleaning system according to the present invention is used, the temperature of the cleaning liquid is maintained within the operating temperature range, so that corrosion of the pipe to be cleaned by the cleaning liquid can be prevented and the cleaning performance of the cleaning liquid can be maintained. Therefore, the pipe to be cleaned can be cleaned efficiently and without fear of corrosion.
【図１】本発明に係る配管洗浄システムの一実施例の構
成を示すフローシートである。FIG. 1 is a flow sheet showing a configuration of an embodiment of a pipe cleaning system according to the present invention.
【図２】従来の配管洗浄システムの一実施例の構成を示
すフローシートである。FIG. 2 is a flow sheet showing a configuration of an example of a conventional pipe cleaning system.
１０ 本発明に係る配管洗浄システムの実施例 １２ 循環ポンプ１２ １４ 洗浄液溜め槽 １６ 送出配管 １８Ａ〜Ｄ 接続口 ２０ ポンプ吐出側ヘッダ ２２ 戻し配管 ２４Ａ〜Ｄ 接続口 ２６ 戻り側ヘッダ ２８ ポンプ吸い込み配管 ３０ バイパスライン ３２ 流量調節弁 ３４ 圧力計 ３６ 隔壁 ３８ 第１槽 ４０ 第２槽 ４２ フィルタ ４４Ａ〜Ｄ 開閉弁 ４６Ａ〜Ｄ 開閉弁 ５０ 従来の配管洗浄システム ６０ 冷却装置 ６２ 電子冷熱器 ６４ 第２循環ポンプ ６６ 接続配管 ６８ 温度計 ７０ 制御器 10 Example of pipe cleaning system according to the present invention 12 Circulation pump 12 14 Cleaning liquid reservoir tank 16 Delivery pipe 18A to D connection port 20 Pump discharge side header 22 Return pipe 24A to D connection port 26 Return side header 28 Pump suction pipe 30 Bypass Line 32 Flow control valve 34 Pressure gauge 36 Partition 38 First tank 40 Second tank 42 Filter 44A-D on-off valve 46A-D on-off valve 50 Conventional pipe cleaning system 60 Cooling device 62 Electronic cooler 64 Second circulation pump 66 Connection Piping 68 Thermometer 70 Controller
Claims (2)
溜め槽と、洗浄液を洗浄液溜め槽から循環ポンプ及び被
洗浄配管を経て洗浄液溜め槽に戻す接続配管とを備え、
循環ポンプにより洗浄液を洗浄液溜め槽から汲み上げ、
被洗浄配管に送液し、被洗浄配管を経て洗浄液溜め槽に
戻す洗浄液の循環により、被洗浄配管を洗浄するように
した配管洗浄システムにおいて、 洗浄液を加熱又は冷却できる洗浄液加熱／冷却装置と、
別のポンプと、洗浄液を洗浄液溜め槽から別のポンプ及
び洗浄液加熱／冷却装置を経て洗浄液溜め槽に戻す循環
配管を設けたことを特徴とする配管洗浄システム。1. A circulation pump for circulating a cleaning liquid, a cleaning liquid storage tank, and a connecting pipe for returning the cleaning liquid from the cleaning liquid storage tank to the cleaning liquid storage tank via the circulation pump and the pipe to be cleaned,
The cleaning liquid is drawn from the cleaning liquid storage tank by the circulation pump,
In a pipe cleaning system that cleans the pipe to be cleaned by circulating the cleaning liquid that is sent to the pipe to be cleaned and returned to the cleaning liquid reservoir via the pipe to be cleaned, a cleaning liquid heating / cooling device that can heat or cool the cleaning liquid,
A pipe cleaning system comprising another pump and a circulation pipe for returning the cleaning liquid from the cleaning liquid storage tank to the cleaning liquid storage tank via another pump and the cleaning liquid heating / cooling device.
の電子冷熱装置であることを特徴とする請求項１に記載
の配管洗浄システム。2. The pipe cleaning system according to claim 1, wherein the cleaning liquid heating / cooling device is an electronic cooling device for cooling the cooling liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32162094A JP3318810B2 (en) | 1994-11-30 | 1994-11-30 | Plumbing cleaning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32162094A JP3318810B2 (en) | 1994-11-30 | 1994-11-30 | Plumbing cleaning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08155414A true JPH08155414A (en) | 1996-06-18 |
| JP3318810B2 JP3318810B2 (en) | 2002-08-26 |
Family
ID=18134554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32162094A Expired - Fee Related JP3318810B2 (en) | 1994-11-30 | 1994-11-30 | Plumbing cleaning system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3318810B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017134849A1 (en) * | 2016-02-04 | 2017-08-10 | 三菱重工業株式会社 | Identification system, vibration-generating device, and identification method |
| CN114789171A (en) * | 2022-04-20 | 2022-07-26 | 浙江晨光电缆股份有限公司 | Cleaning device and cleaning method for cooling runner of plastic extruder head |
-
1994
- 1994-11-30 JP JP32162094A patent/JP3318810B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017134849A1 (en) * | 2016-02-04 | 2017-08-10 | 三菱重工業株式会社 | Identification system, vibration-generating device, and identification method |
| JP2017138235A (en) * | 2016-02-04 | 2017-08-10 | 三菱重工業株式会社 | Identifying system, vibration generating device, and identifying method |
| CN114789171A (en) * | 2022-04-20 | 2022-07-26 | 浙江晨光电缆股份有限公司 | Cleaning device and cleaning method for cooling runner of plastic extruder head |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3318810B2 (en) | 2002-08-26 |
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