JP2001038315A - Rinsing of pipeline - Google Patents
Rinsing of pipelineInfo
- Publication number
- JP2001038315A JP2001038315A JP2000175381A JP2000175381A JP2001038315A JP 2001038315 A JP2001038315 A JP 2001038315A JP 2000175381 A JP2000175381 A JP 2000175381A JP 2000175381 A JP2000175381 A JP 2000175381A JP 2001038315 A JP2001038315 A JP 2001038315A
- Authority
- JP
- Japan
- Prior art keywords
- cleaning
- pipe
- water
- air
- washing
- 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.)
- Pending
Links
Landscapes
- Cleaning In General (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、地域冷暖房装置等にお
ける配管内の洗浄を行うための配管洗浄方法に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe cleaning method for cleaning a pipe in a district heating / cooling apparatus or the like.
【０００２】[0002]
【従来の技術】配管、例えば地域冷暖房装置における配
管は、その施工時における配管溶接やシール剤を用いた
配管接続等によって、内部に溶接スラグやカス、亜鉛ス
ラッジ等の汚物（異物）が多く存在することになる。し
たがって、配管完了直後からすぐに地域冷暖房の運転を
そのまま開始したのでは、配管途中にあるストレ−ナが
目詰まりしたり、配管途中にある各種弁の機能が損なわ
れることになる。2. Description of the Related Art Pipes, for example, pipes in district heating / cooling systems, contain a large amount of foreign matter (foreign matter) such as welding slag, scum, zinc sludge, etc. due to pipe welding or pipe connection using a sealant during construction. Will do. Therefore, if the district heating and cooling operation is started immediately after the completion of the piping, the strainer in the middle of the piping will be clogged, and the functions of various valves in the middle of the piping will be impaired.
【０００３】このため、従来は、配管完了後に、洗浄対
象となる洗浄配管を含む洗浄水の循環系路を構成すると
共に、この循環系路途中に汚物のトラップを設けるよう
にしていた（フラッシング）。しかしながら、このよう
な洗浄水の循環による配管洗浄は、水張り→エア抜き→
循環→水抜きの工程を何回も繰り返し行わなければなら
ないので、洗浄対象となる配管の全容積の数倍ないし数
十倍というように極めて多量の洗浄水を必要とし、しか
も２〜４週間程度というように極めて長期間要するもの
となる。For this reason, conventionally, after the piping is completed, a circulation system for the cleaning water including the cleaning piping to be cleaned is formed, and a trap for dirt is provided in the middle of the circulation system (flushing). . However, such pipe washing by circulation of washing water is performed by filling with water → bleeding air →
Since the process of circulation → drainage must be repeated many times, an extremely large amount of washing water is required, such as several times to several tens times the total volume of the piping to be washed, and about 2 to 4 weeks It takes a very long time.
【０００４】配管洗浄を短時間でおこなうため、洗浄液
として酸を用いることもおこなわれているが、この場合
も酸を多量に必要とするばかりでなく、酸の取り扱いと
いう点を十分考慮する必要がある（酸による配管系路の
損傷可能性や洗浄後の酸の処理というものを考慮する必
要がある）。In order to clean the piping in a short time, an acid is used as a cleaning liquid. However, in this case, not only a large amount of the acid is required but also the handling of the acid must be sufficiently considered. Yes (it is necessary to consider the possibility of damaging the piping system by acid and the treatment of acid after cleaning).
【０００５】[0005]
【発明が解決しようとする課題】本発明は以上のような
事情を勘案してなされたもので、洗浄液の使用が少なく
てすみ、しかも短時間で洗浄を行うことができるように
した配管の洗浄方法を提供することを目的とする。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above circumstances, and requires only a small amount of cleaning liquid to be used. The aim is to provide a method.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明にあっては次のような構成としてある。すな
わち、真空引きを行うポンプ及び回収タンクを備える吸
引作業車を用意し、そのポンプを用いることにより、洗
浄対象となる洗浄配管の一端部側から真空引きして該洗
浄配管内の圧力を大きな負圧状態とし、その後、その大
きな負圧状態を維持しつつ、該洗浄配管の他端部側から
空気と共に洗浄水を、該洗浄水そのものを主流たる該空
気中に混入させることにより供給し、該洗浄配管内にお
いて、該洗浄水を激しく分散させて、その洗浄水の各液
滴を該洗浄配管内壁に激しく衝突させ、その衝突が、該
洗浄配管内部の溶接スラグやカス、亜鉛スラッジ等の異
物を該洗浄配管内の空気及び洗浄水の流れ中に移行さ
せ、該異物を、空気及び洗浄水と共に該洗浄配管の一端
部側へ流して前記回収タンクに回収されるようになるも
のとする、ことを特徴とする配管の洗浄方法とした構成
としてある。Means for Solving the Problems To achieve the above object, the present invention has the following configuration. That is, a suction work vehicle including a pump for performing vacuuming and a recovery tank is prepared, and by using the pump, a vacuum is drawn from one end side of the cleaning pipe to be cleaned, and the pressure in the cleaning pipe is greatly reduced. After that, while maintaining the large negative pressure state, washing water is supplied together with air from the other end of the washing pipe by mixing the washing water itself into the mainstream air, In the cleaning pipe, the cleaning water is vigorously dispersed, and each droplet of the cleaning water violently collides with the inner wall of the cleaning pipe. Is transferred into the flow of air and cleaning water in the cleaning pipe, and the foreign matter is caused to flow to one end side of the cleaning pipe together with the air and the cleaning water so as to be collected in the recovery tank. thing It is constituted that the cleaning method of the pipe, characterized.
【０００７】[0007]
【発明の作用】真空引きされた洗浄配管内に空気と洗浄
水とが、主流たる空気中に洗浄水そのものを混入させる
ことにより供給され、洗浄配管内において、洗浄水が激
しく分散されて、その洗浄水の各液滴が該洗浄配管内壁
に激しく衝突されることから、洗浄配管内はあたかも暴
風雨のような雰囲気、つまり洗浄水が洗浄配管の内壁に
激しく衝突しつつ洗浄配管の一端部側へと流れていく状
態となり、洗浄配管内は効果的に洗浄されることにな
る。According to the present invention, air and cleaning water are supplied into the evacuated cleaning pipe by mixing the cleaning water itself into the mainstream air, and the cleaning water is vigorously dispersed in the cleaning pipe. Since each droplet of the cleaning water collides violently with the inner wall of the cleaning pipe, the cleaning pipe has an atmosphere like a storm, i.e., the cleaning water collides violently with the inner wall of the cleaning pipe and moves toward one end of the cleaning pipe. And the inside of the cleaning pipe is effectively cleaned.
【０００８】[0008]
【発明の効果】請求項１に記載された発明によれば、空
気と洗浄水とを供給している時間、つまり実質的に洗浄
を行っている時間は通常であれば数１０分ですみ、洗浄
時間が極めて短いものとなる。また、洗浄効果が高いの
で、使用する洗浄水の量も少なくてすむものとなる。さ
らに、作業労力もかなり軽減されたものとなる。加え
て、洗浄水の供給を、主流たる空気中に該洗浄水そのも
のを混入させることにより行うので、洗浄水の消費を極
力抑制しつつ、洗浄水の洗浄配管内壁に対する激しい衝
突を十分確保する上で好ましいものとなる。しかも、吸
引作業車に備えるポンプを、洗浄配管内の真空引きに利
用することとしているので、ポンプの洗浄現場への移動
を容易に行うことができる。また、洗浄液として水（洗
浄水）を用いることにより、本発明を安価にかつ容易に
実施化する上で好ましいものとなる。なお、洗浄は、洗
浄水が洗浄配管の内壁に激しく衝突するという物理的な
作用によって効果的に行われるので、洗浄水として特別
に酸のようなものを用いる必要はことさら生じないもの
である。According to the first aspect of the present invention, the time during which the air and the cleaning water are supplied, that is, the time during which the cleaning is substantially performed, normally takes only several tens of minutes, The cleaning time is extremely short. Further, since the washing effect is high, the amount of washing water to be used is small. In addition, the work effort is considerably reduced. In addition, since the supply of the cleaning water is performed by mixing the cleaning water itself into the mainstream air, the consumption of the cleaning water is suppressed as much as possible, and the severe collision of the cleaning water with the inner wall of the cleaning pipe is sufficiently ensured. Is preferred. In addition, since the pump provided in the suction work vehicle is used for evacuation of the cleaning pipe, the pump can be easily moved to the cleaning site. Further, the use of water (washing water) as the washing liquid is preferable in that the present invention can be easily implemented at low cost. Cleaning is effectively performed by the physical action of the cleaning water violently colliding with the inner wall of the cleaning pipe, so that it is not particularly necessary to use an acid or the like as the cleaning water.
【０００９】[0009]
【実施例】以下本発明の実施例を添付した図面に基づい
て説明する。 図１の説明 先ず、図１を参照しつつ、本発明の原理的な事項につい
て説明する。この図１において、１は洗浄対象となる洗
浄配管であり、洗浄配管１の一端部１ａには、真空引き
用のポンプ２が接続される。このポンプ２と洗浄配管１
の一端部１ａとの間には、洗浄配管１側から順次、内部
が透視可能な透視配管３、圧力計４、吸引ホ−ス５、気
液分離装置６が接続される。なお、透視配管３は、全体
的に透明あるいは半透明であってもよいが、部分的に透
視部分（透視窓）を設けた構成であってもよい。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. Description of FIG. 1 First, the principle of the present invention will be described with reference to FIG. In FIG. 1, reference numeral 1 denotes a cleaning pipe to be cleaned, and one end 1a of the cleaning pipe 1 is connected to a pump 2 for evacuation. This pump 2 and cleaning pipe 1
A transparent pipe 3, a pressure gauge 4, a suction hose 5, and a gas-liquid separator 6, whose inside can be seen through, are connected in sequence from one end 1 a of the cleaning pipe 1. The see-through pipe 3 may be entirely transparent or translucent, or may have a configuration in which a see-through portion (see-through window) is provided partially.
【００１０】洗浄配管１の他端部１ｂには、３方ソケッ
ト１０の第１接続部１０ａが接続されている。この３方
ソケット１０の第２接続部１０ｂには、手動式のボ−ル
バルブ１１、圧力計１２を介して、洗浄水の供給ホ−ス
１３が接続される。供給ホ−ス１３は、給水源に接続さ
れるが、洗浄配管１の口径にもよるが毎分５０リットル
以上の洗浄水を供給できるように設定される。近くに適
当な給水源がないときは、供給ホ−ス１３を、別途用意
した小型の水道水貯溜タンク（供給ポンプ付きであって
もよい）に接続すればよい。３方ソケット１０の第３接
続部１０ｃには、圧力計（負圧計）１４を介して、手動
式のボ−ルバルブ１５が接続される。このバルブ１５は
空気吸引用である。A first connection portion 10a of a three-way socket 10 is connected to the other end 1b of the cleaning pipe 1. A supply hose 13 for washing water is connected to a second connection portion 10b of the three-way socket 10 via a manual ball valve 11 and a pressure gauge 12. The supply hose 13 is connected to a water supply source, and is set so as to supply 50 liters or more of cleaning water per minute depending on the diameter of the cleaning pipe 1. If there is no suitable water supply source nearby, the supply hose 13 may be connected to a separately prepared small tap water storage tank (which may have a supply pump). A manual ball valve 15 is connected to a third connection portion 10c of the three-way socket 10 via a pressure gauge (negative pressure gauge) 14. This valve 15 is for air suction.
【００１１】以上のような構成において、洗浄配管１の
洗浄に際しての準備として、図１に示すように、当該洗
浄配管１に対して、各種機器類２〜６、１０〜１５が接
続される。次に、バルブ１１、１５を閉じた状態で、ポ
ンプ２を運転することにより、洗浄配管１内を真空引き
する。圧力計１４を見ることにより、洗浄配管１内が所
定負圧以上の高負圧になったことを確認した後、バルブ
１１および１５を開いて、洗浄配管１内に洗浄水と空気
とを供給する。このとき、洗浄完了するまでは、ポンプ
２の運転は継続される。In the above configuration, as a preparation for cleaning the cleaning pipe 1, various devices 2 to 6, 10 to 15 are connected to the cleaning pipe 1 as shown in FIG. Next, the pump 2 is operated with the valves 11 and 15 closed to evacuate the inside of the cleaning pipe 1. After checking that the inside of the cleaning pipe 1 has reached a high negative pressure equal to or higher than a predetermined negative pressure by looking at the pressure gauge 14, the valves 11 and 15 are opened to supply cleaning water and air into the cleaning pipe 1. I do. At this time, the operation of the pump 2 is continued until the cleaning is completed.
【００１２】供給された空気と洗浄水とは、洗浄配管１
の他端部１ｂから一端部１ａへと流れるが、このとき、
洗浄配管１内が高負圧であるため、洗浄配管１内の雰囲
気はあたかも暴風雨のような状態となる。つまり、洗浄
水は、洗浄配管１内を流れる間に、その内壁に激しく衝
突して、当該内壁を洗浄する。このとき、上記暴風雨の
状態が十分に維持されるように、洗浄水の供給は少しず
つ行われる。つまり、洗浄水は、洗浄配管１の断面全体
を洗浄水で覆うことのないような状態で、液滴の状態で
洗浄配管１の内壁に衝突するような状態で供給するのが
好ましい。また、空気の供給は、圧力計１４を見つつ、
負圧が一定以上低下しないように（大気圧に近付かない
ように）、つまり洗浄水の洗浄配管内壁への衝突エネル
ギが所定以上となるように、行なわれる。The supplied air and the cleaning water are supplied to the cleaning pipe 1
Flows from the other end 1b to the one end 1a,
Since the inside of the cleaning pipe 1 is at a high negative pressure, the atmosphere in the cleaning pipe 1 is as if it were a storm. That is, while flowing through the cleaning pipe 1, the cleaning water violently collides with the inner wall to clean the inner wall. At this time, the supply of the cleaning water is performed little by little so that the storm condition is sufficiently maintained. That is, it is preferable that the cleaning water is supplied in a state where the entire cross section of the cleaning pipe 1 is not covered with the cleaning water, and in a state where the cleaning liquid 1 collides with the inner wall of the cleaning pipe 1 in a droplet state. In addition, the supply of air, while watching the pressure gauge 14,
The process is performed so that the negative pressure does not decrease more than a certain value (so that the pressure does not approach the atmospheric pressure), that is, the collision energy of the washing water with respect to the inner wall of the washing pipe becomes more than a predetermined value.
【００１３】洗浄により、洗浄配管１内の汚物は、空気
および洗浄水と共に、その一端部１ａ側へと流れる。洗
浄配管１の一端部１ａを通過した空気と洗浄水と汚物と
は、気液分離装置６によって、空気と洗浄水および汚物
とに分離されて、空気のみがポンプ２へ吸引されて大気
へ放出され、洗浄水と汚物とは気液分離装置６に貯溜さ
れる。As a result of the washing, the dirt in the washing pipe 1 flows to the one end 1a side together with the air and the washing water. The air, cleaning water, and dirt that have passed through one end 1a of the cleaning pipe 1 are separated into air, cleaning water, and dirt by the gas-liquid separator 6, and only air is sucked into the pump 2 and released to the atmosphere. Then, the cleaning water and the waste are stored in the gas-liquid separation device 6.
【００１４】透視配管３を外部から目視したとき、内部
の流れが汚れていれば、洗浄未完了ということで、前述
した洗浄作業が継続される。透視配管３内の流れがきれ
いになったことを確認した段階で、洗浄配管１の洗浄が
完了ということになる。洗浄完了が確認された後は、ポ
ンプ２の運転が停止され、洗浄水と空気の供給も停止さ
れる。そして、洗浄配管１は、各種機器類２〜６、１０
〜１５の接続が外されて、正規の使用接続状態へと復帰
される。When the inside of the see-through pipe 3 is dirty when the see-through pipe 3 is viewed from the outside, the washing is not completed, and the above-described washing operation is continued. When it is confirmed that the flow in the see-through pipe 3 is clean, the cleaning of the cleaning pipe 1 is completed. After the completion of the cleaning is confirmed, the operation of the pump 2 is stopped, and the supply of the cleaning water and the air is also stopped. Then, the cleaning pipe 1 includes various devices 2 to 6, 10
Connections # 15 to # 15 are disconnected, and the connection is returned to the normal use connection state.
【００１５】本発明の効果を確認するため、２本の冷温
水配管（３５０Ａで長さ１８７ｍのものと、３００Ａで
長さ１７８ｍのもの）を洗浄配管１として洗浄を行った
ところ、洗浄結果は極めて良好であった。各種機器類の
接続開始から、洗浄完了して各種機器類の取り外しまで
の時間を含めて、要した作業時間は、約４時間であっ
た。この洗浄に際して、洗浄配管１内の風速が４０ｍ／
ｓ以上となるように負圧の大きさを維持し、使用した洗
浄水の量は約４ｔ（４０００リットル）であった。な
お、真空引き開始から、所定負圧になる（洗浄水と空気
との供給開始可能状態になる）までの時間は、各配管共
に約１０分であった。In order to confirm the effect of the present invention, two cold and hot water pipes (one having a length of 187 m at 350 A and one having a length of 178 m at 300 A) were washed as washing pipes 1, and the washing results were as follows. Very good. The required working time, including the time from the start of connection of various devices to the completion of cleaning and removal of various devices, was about 4 hours. During this cleaning, the wind speed in the cleaning pipe 1 is 40 m /
The magnitude of the negative pressure was maintained so as to be s or more, and the amount of washing water used was about 4 t (4000 liters). In addition, the time from the start of evacuation to a predetermined negative pressure (a state in which the supply of cleaning water and air can be started) was about 10 minutes for each pipe.
【００１６】ここで、使用する洗浄水の量は、洗浄配管
１の全容積の数分の１ないし数十分の１（１／５〜１／
２０程度）でよく、通常は１／１０前後（１／８〜１／
１２）の洗浄水を用意しておけば十分である。勿論、使
用する洗浄水の量は、洗浄配管１の汚れがひどいほど多
くなる傾向にある。Here, the amount of the washing water to be used is from a fraction of the total volume of the washing pipe 1 to a few tenths (1/5 to 1/1).
20), usually about 1/10 (1/8 to 1 /
It is enough to prepare the washing water of 12). Of course, the amount of cleaning water used tends to increase as the cleaning pipe 1 becomes more contaminated.
【００１７】図２の説明 図２は、図１に示されるポンプ２、吸引ホ−ス５および
気液分離装置６を搭載した自動車を示し、実施例では、
兼松エンジニアリング株式会社製の商品名パワ−プロペ
スタ−（ＳＰ−０４ＢＨＰで、ポンプ駆動馬力９８馬
力、最大風量４１ｍ3、最大負圧−７００ｍｍＨｇ）を
用いてある。この図２において、気液分離装置６は、吸
引ホ−ス５が接続された大きな容量を有するタンク２１
と、タンク２１に連なるサイクロン２２と、サイクロン
２２に連なるウオ−タクリ−ニング２３とから構成され
ている。また、ポンプ２は、湿式ル−ツブロアとされ、
４次キャッチャ−２４で湿式ポンプ２の循環水が確保さ
れている。なお、空気の流れが、図中矢印で示される。
このように、ポンプ２等を自動車に搭載した形式として
おくことにより、洗浄の現場への移動を、他の機器類の
搬送と共に容易に行うことができる。この自動車には、
洗浄水を貯溜する圧送ポンプ付きのタンクを搭載してお
くこともできる。Description of FIG. 2 FIG. 2 shows an automobile equipped with the pump 2, the suction hose 5 and the gas-liquid separation device 6 shown in FIG.
A power propeller (trade name: SP-04BHP, pump driving horsepower 98 horsepower, maximum air volume 41 m 3 , maximum negative pressure -700 mmHg) manufactured by Kanematsu Engineering Co., Ltd. is used. In FIG. 2, the gas-liquid separation device 6 has a large capacity tank 21 to which the suction hose 5 is connected.
, A cyclone 22 connected to the tank 21, and a water cleaning 23 connected to the cyclone 22. The pump 2 is a wet roots blower,
The circulating water of the wet pump 2 is secured by the fourth catcher 24. The flow of air is indicated by arrows in the figure.
As described above, by using the type in which the pump 2 and the like are mounted on the vehicle, the cleaning can be easily moved to the site together with the transportation of other devices. This car has
It is also possible to mount a tank with a pressure pump for storing washing water.
【００１８】図３の説明 図３は、地域冷暖房装置において、ビル内の配管例と、
この配管を本発明により洗浄する場合の具体例を示すも
のである。この図３において、冷暖房用の冷温水（蒸気
の場合もあり）は、地域用共通配管３０に連なる供給配
管３１から、第１サプライヘッダ３２に供給され、この
第１サプライヘッダ３２から、ポンプ３３が接続された
配管３４を経て第２サプライヘッダ３５に供給される。
冷温水は、第２サプライヘッダ３５から、複数の各独立
配管３６を経て、各空調装置３７に供給される。Description of FIG. 3 FIG. 3 shows an example of piping in a building,
This shows a specific example in the case where this pipe is cleaned according to the present invention. In FIG. 3, cold / hot water for cooling and heating (may be steam) is supplied to a first supply header 32 from a supply pipe 31 connected to a common pipe 30 for a region, and a pump 33 is supplied from the first supply header 32. Is supplied to the second supply header 35 via the connected pipe 34.
The cold / hot water is supplied from the second supply header 35 to each of the air conditioners 37 via the plurality of independent pipes 36.
【００１９】各空調装置３７からの戻り冷温水は、独立
配管４１からリタ−ンヘッダ４２へ戻され、リタ−ンヘ
ッダ４２から戻り配管４３を経て、地域用共通戻り配管
４４へ戻される。なお、リタ−ンヘッダ４２からの冷温
水の一部が、配管４５を経て、第２サプライヘダ３５へ
戻される。なお、図中符合５１は圧力計、５２はＹスト
レ−ナ、５３は圧力調整弁、５４は電磁流量計である。
また、図中一点鎖線よりも右方側が、ビル内の配管を示
す。The return cold / hot water from each air conditioner 37 is returned from the independent pipe 41 to the return header 42, returned from the return header 42 via the return pipe 43, and returned to the regional common return pipe 44. A part of the cold / hot water from the return header 42 is returned to the second supply header 35 via the pipe 45. In the drawing, reference numeral 51 denotes a pressure gauge, 52 denotes a Y strainer, 53 denotes a pressure regulating valve, and 54 denotes an electromagnetic flow meter.
The right side of the dashed line in the drawing indicates the piping in the building.
【００２０】前記配管系の洗浄を、配管施工後で、かつ
地域冷暖房の運転開始前におこなうため、例えば３つの
バイパス配管６１〜６３が設けられる。このバイパス配
管６１〜６３は、あらかじめ施工しておくのが好ましい
ものであるが、施工されていないときは、洗浄時に、別
途配管することになる。For example, three bypass pipes 61 to 63 are provided in order to perform the cleaning of the pipe system after the installation of the pipe and before the operation of the district cooling and heating. The bypass pipes 61 to 63 are preferably constructed in advance, but when not constructed, they are separately constructed during cleaning.
【００２１】図３に示す状態において、洗浄すべき配管
系統毎に、吸引口つまりポンプ２の接続口と、注入口つ
まり洗浄水および空気の供給位置とを示すこととする。
なお、洗浄に際しては、洗浄系路以外の弁は全て閉じら
れ、圧力計５１やＹストレ−５２、圧力調整弁５３、お
よび流量計５４に関する弁は全て閉じられる。In the state shown in FIG. 3, a suction port, that is, a connection port of the pump 2, and an injection port, that is, a supply position of cleaning water and air are shown for each piping system to be cleaned.
At the time of cleaning, all valves other than the cleaning system are closed, and all valves related to the pressure gauge 51, the Y-strain 52, the pressure adjusting valve 53, and the flow meter 54 are closed.
【００２２】(1)ポンプ２の接続口が第２サプライヘッ
ダ３５の予備フランジＫ１で、洗浄水と空気の注入口が
リタ−ンヘッダ４２の予備フランジＴ１としたとき。こ
のときの洗浄系路は、戻り配管４３、バイパス配管６
１、６２、６３、供給配管３１、第１サプライヘッダ３
２、配管３４、第２サプライヘッダ３５となる。 (2)ポンプ２の接続口と洗浄水の注入口との位置を上記
(1)と同じとして、開閉弁の開閉状態の切換えにより、
リタ−ンヘッダ４２から配管４５を経て、第２サプライ
ヘッダ３５という系路の洗浄を選択し得る。(1) When the connection port of the pump 2 is the spare flange K1 of the second supply header 35 and the inlet of the washing water and air is the spare flange T1 of the return header 42. The cleaning system at this time includes the return pipe 43 and the bypass pipe 6.
1, 62, 63, supply pipe 31, first supply header 3
2, a pipe 34, and a second supply header 35. (2) The positions of the connection port of the pump 2 and the injection port of the washing water are described above.
Same as (1), by switching the open / close state of the on-off valve,
From the return header 42 via the pipe 45, the second supply header 35 can be selected to be washed.
【００２３】(3)ポンプ２の接続口を第２サプライヘッ
ダ３５の予備フランジＫ１とし、洗浄水の注水口を、配
管４１のうち空調装置３７に近いＴ２位置とする。この
ときは、配管４１の洗浄が行われる。 (4)ポンプ２の接続口をＴ１とし、洗浄水の注入口を、
配管３６のうち空調装置３７に近いＴ３位置とする。こ
のときは、配管３６の洗浄が行われる。(3) The connection port of the pump 2 is set as the spare flange K1 of the second supply header 35, and the injection port of the washing water is set at the T2 position in the pipe 41 near the air conditioner 37. At this time, the pipe 41 is cleaned. (4) The connection port of the pump 2 is T1, and the injection port of the washing water is
It is assumed that the pipe 36 is at a T3 position close to the air conditioner 37. At this time, the pipe 36 is cleaned.
【００２４】以上実施例について説明したが、本発明
は、地域冷暖房装置用の配管の洗浄に限らず、他の配管
の洗浄、例えば給水管における本管の洗浄（新設時での
洗浄が好ましい）、雑用水（中水）管における本管や揚
水管の洗浄、スラリ−管の洗浄等にも適用して好適とな
る。勿論、地域冷暖房装置において、ビル内の配管に限
らず、各ビルに共通の共通配管の洗浄を行う場合にも本
発明は効果的である。Although the embodiment has been described above, the present invention is not limited to the cleaning of a pipe for a district heating / cooling apparatus, but also the cleaning of other pipes, for example, the cleaning of a main pipe in a water supply pipe (preferably the cleaning at the time of new installation). The present invention is also suitably applied to washing a main pipe and a pumping pipe in a general water (medium water) pipe, washing a slurry pipe, and the like. Of course, the present invention is also effective in the case of cleaning not only the pipes in the building but also the common pipes common to each building in the district heating / cooling apparatus.
【００２５】また、用いる洗浄液としては、安価かつ容
易に入手できるという点で水を用いるのが好ましいが、
洗浄対象となる配管やこれに接続された機器類との関係
で問題がなければ、酸を含めて従来既知の水以外の洗浄
液を適宜利用することができる。As the washing liquid to be used, it is preferable to use water because it is inexpensive and easily available.
If there is no problem in relation to the pipe to be cleaned and the equipment connected thereto, a conventionally known cleaning liquid other than water, including acid, can be used as appropriate.
【図１】本発明の一実施例を示す系統図。FIG. 1 is a system diagram showing one embodiment of the present invention.
【図２】ポンプ等を搭載した自動車の一例を示す図。FIG. 2 is a diagram illustrating an example of an automobile equipped with a pump and the like.
【図３】地域冷暖房装置におけるビル内の配管例を示す
系統図。FIG. 3 is a system diagram showing an example of piping in a building in the district heating / cooling apparatus.
１：洗浄配管 １ａ：一端部 １ｂ：他端部 ２：ポンプ ６：気液分離装置 １３：洗浄水供給ホ−ス １４：圧力計（負圧計） １５：空気供給バルブ 1: Cleaning pipe 1a: One end 1b: Other end 2: Pump 6: Gas-liquid separator 13: Cleaning water supply hose 14: Pressure gauge (negative pressure gauge) 15: Air supply valve
フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ２８Ｇ 13/00 Ｆ２８Ｇ 13/00 Ｂ Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat II (reference) F28G 13/00 F28G 13/00 B
Claims (1)
備える吸引作業車を用意し、そのポンプを用いることに
より、洗浄対象となる洗浄配管の一端部側から真空引き
して該洗浄配管内の圧力を大きな負圧状態とし、その
後、その大きな負圧状態を維持しつつ、該洗浄配管の他
端部側から空気と共に洗浄水を、該洗浄水そのものを主
流たる該空気中に混入させることにより供給し、該洗浄
配管内において、該洗浄水を激しく分散させて、その洗
浄水の各液滴を該洗浄配管内壁に激しく衝突させ、その
衝突が、該洗浄配管内部の溶接スラグやカス、亜鉛スラ
ッジ等の異物を該洗浄配管内の空気及び洗浄水の流れ中
に移行させ、該異物を、空気及び洗浄水と共に該洗浄配
管の一端部側へ流して前記回収タンクに回収されるよう
になるものとする、ことを特徴とする配管の洗浄方法。1. A suction work vehicle including a pump for performing vacuuming and a recovery tank is prepared, and by using the pump, a vacuum is drawn from one end of a cleaning pipe to be cleaned and the pressure in the cleaning pipe is reduced. And supplying the washing water together with air from the other end of the washing pipe by mixing the washing water itself into the mainstream air while maintaining the large negative pressure state. Then, in the cleaning pipe, the cleaning water is vigorously dispersed, and each droplet of the cleaning water violently collides with the inner wall of the cleaning pipe. Moving foreign matter into the flow of air and washing water in the washing pipe, and flowing the foreign matter together with air and washing water to one end of the washing pipe so as to be collected in the collection tank. And this And a method for cleaning piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000175381A JP2001038315A (en) | 2000-01-01 | 2000-06-12 | Rinsing of pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000175381A JP2001038315A (en) | 2000-01-01 | 2000-06-12 | Rinsing of pipeline |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06141088A Division JP3134668B2 (en) | 1994-05-31 | 1994-05-31 | How to clean piping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001038315A true JP2001038315A (en) | 2001-02-13 |
Family
ID=18677270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000175381A Pending JP2001038315A (en) | 2000-01-01 | 2000-06-12 | Rinsing of pipeline |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001038315A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174954A (en) * | 2007-01-18 | 2008-07-31 | Berutekkusu:Kk | Method for cleaning inside of drain pipe |
| KR101078108B1 (en) * | 2008-09-24 | 2011-10-28 | 한국수자원공사 | Lime scale killer cleaning loop system |
| JP2019048298A (en) * | 2018-11-30 | 2019-03-28 | 株式会社Ｓｃｒｅｅｎホールディングス | Substrate processing apparatus and pipe washing method in substrate processing apparatus |
-
2000
- 2000-06-12 JP JP2000175381A patent/JP2001038315A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174954A (en) * | 2007-01-18 | 2008-07-31 | Berutekkusu:Kk | Method for cleaning inside of drain pipe |
| KR101078108B1 (en) * | 2008-09-24 | 2011-10-28 | 한국수자원공사 | Lime scale killer cleaning loop system |
| JP2019048298A (en) * | 2018-11-30 | 2019-03-28 | 株式会社Ｓｃｒｅｅｎホールディングス | Substrate processing apparatus and pipe washing method in substrate processing apparatus |
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