JPH0458071A - Cleaning method for syringe pump - Google Patents
Cleaning method for syringe pumpInfo
- Publication number
- JPH0458071A JPH0458071A JP2166366A JP16636690A JPH0458071A JP H0458071 A JPH0458071 A JP H0458071A JP 2166366 A JP2166366 A JP 2166366A JP 16636690 A JP16636690 A JP 16636690A JP H0458071 A JPH0458071 A JP H0458071A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- pump chamber
- cleaning
- cylinder
- pump
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims description 8
- 238000007664 blowing Methods 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract 2
- 239000007788 liquid Substances 0.000 claims description 61
- 239000012530 fluid Substances 0.000 abstract 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、シリンジポンプ、さらに詳細には、シリンダ
ー筒内にピストンが往復動自在に配設されるとともに、
前記シリンダー筒内に液体の流入路および流出路が連通
したシリンジポンプの洗浄方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a syringe pump, more specifically, a syringe pump in which a piston is arranged in a cylinder so as to be able to reciprocate,
The present invention relates to a method for cleaning a syringe pump in which a liquid inflow path and a liquid outflow path communicate with each other in the cylinder.
ポンプとしては各種のものが知られており、その一つに
シリンジポンプがある。これは、第１図に示すように、
シリンダー筒１内にピストン２が往復動自在に配設され
るとともに、前記シリンダー筒１内に液の流入路３およ
び流出路４が連通したもので、定量ポンプとして有用で
ある。Various types of pumps are known, one of which is a syringe pump. This is as shown in Figure 1.
A piston 2 is disposed within a cylinder cylinder 1 so as to be able to freely reciprocate, and a liquid inflow passage 3 and an outflow passage 4 are communicated within the cylinder cylinder 1, making it useful as a metering pump.
また、流入路３には吸引弁５が、流出路４には吐出弁６
が設けられるとともに、シリンダー筒１内面とピストン
２の外面とは、Ｏリングなどのシール手段７が配設され
ている。Further, a suction valve 5 is provided in the inflow path 3, and a discharge valve 6 is provided in the outflow path 4.
A sealing means 7 such as an O-ring is provided between the inner surface of the cylinder cylinder 1 and the outer surface of the piston 2.
かかるシリンジポンプにおいて、吸引弁５を開とし、吐
出弁６を閉とした状態で、ピストン２を上昇させると、
シリンダー筒１内が負圧となるので、対象部位に対して
供給すべき液りがシリンダー筒１内に流入する。所定量
の液の吸引が終了したならば、逆に吸引弁５を閉とし、
吐出弁６を開とした状態で、ピストン２を下降させると
、シリンダー筒１内の当該液りが吐出され、対象部位に
送給される。かかる操作は、間欠的に行われる。In such a syringe pump, when the piston 2 is raised with the suction valve 5 open and the discharge valve 6 closed,
Since the inside of the cylinder tube 1 becomes negative pressure, the liquid to be supplied to the target region flows into the cylinder tube 1. When the predetermined amount of liquid has been suctioned, the suction valve 5 is closed,
When the piston 2 is lowered with the discharge valve 6 open, the liquid in the cylinder tube 1 is discharged and delivered to the target region. Such operations are performed intermittently.
しかるに、長時間の運転を行うと、ポンプ室内に液のカ
スなどが付着し、洗浄を必要とする。However, if the pump is operated for a long period of time, liquid residue and the like will accumulate inside the pump chamber, requiring cleaning.
従来、この洗浄に際しては、（１）シリンジポンプを分
解して洗浄するほか、簡易的には（２）−旦前の液を排
出した後、その液の自然乾燥を待つ方法、（３）ポンプ
室内に洗浄液を流入させて洗浄した後、新たな液を使用
するとき、洗浄液と置換する方法、などがある。Conventionally, when cleaning this, in addition to (1) disassembling and cleaning the syringe pump, there were also simple methods (2) - draining the previous liquid and then waiting for the liquid to dry naturally, and (3) disassembling the pump. There is a method in which cleaning liquid is introduced into the room for cleaning, and then when a new liquid is used, it is replaced with the cleaning liquid.
しかし、前記（１）および（２）の方法は、多大な手間
と時間がかかり、適当でない。However, methods (1) and (2) above require a great deal of effort and time, and are not suitable.
他方、前記（３）の方法は、比較的簡易であるものの、
洗浄した後、ポンプ室内には何％かの洗浄液が残存し、
新たな液と置換するとき、その新たな液に洗浄液が混入
し、洗浄液により新たな液が希釈されたり、汚染された
りし、目的の液が得られず、この液をたとえば塗布液と
して利用する場合には、所期の物性をもった塗布層を形
成できないなどの問題がある。しかも、新たな液との置
換に多量の液を必要とし、かつ置換時間がかなりかかる
難点もある。On the other hand, although method (3) above is relatively simple,
After cleaning, some percentage of cleaning solution remains in the pump chamber.
When replacing the liquid with a new liquid, the cleaning liquid gets mixed into the new liquid, and the new liquid is diluted or contaminated by the cleaning liquid, making it impossible to obtain the desired liquid and using this liquid, for example, as a coating liquid. In some cases, there are problems such as the inability to form a coating layer with desired physical properties. Moreover, there are also disadvantages in that a large amount of liquid is required for replacement with new liquid, and it takes a considerable amount of time for replacement.
したがって、本発明の主たる課題は、液の置換を迅速か
つ確実に行うとともに、新たな液の希釈や汚染がないよ
うにすることにある。Therefore, the main object of the present invention is to quickly and reliably replace the liquid and to prevent dilution and contamination of the new liquid.
上記課題は、シリンダー筒内にピストンが往復動自在に
配設されるとともに、そのピストンの後退および前進に
よりそれぞれ液体を流入および流出させるシリンジポン
プにおいて、
ポンプ室内の洗浄時において、ポンプ室内に洗浄液を流
し込み、その後ポンプ室内に気体を吹き込んでその吹込
み圧力により洗浄液を排出させることで解決できる。The above problem is solved by a syringe pump in which a piston is disposed in a cylinder so that it can freely move back and forth, and liquid flows in and out by moving the piston backward and forward, respectively. This can be solved by pouring the cleaning liquid into the pump chamber, then blowing gas into the pump chamber and using the blowing pressure to discharge the cleaning liquid.
本発明では、ポンプ室内の洗浄時において、ポンプ室内
に洗浄液を流し込み、その後ポンプ室内に気体を吹き込
んでその吹込み圧力により洗浄液を排出させるので、古
い液は送入気体の圧力により、−気にポンプ室から排出
され、置換が迅速かつ確実に行われ、置換作業時間が大
幅に短縮され、しかも古い液の残留がなく、新たな液の
希釈や汚染がなく、所期の物性の通りの液に置換できる
。In the present invention, when cleaning the pump chamber, the cleaning liquid is poured into the pump chamber, and then gas is blown into the pump chamber and the cleaning liquid is discharged by the pressure of the blowing gas. The liquid is discharged from the pump chamber and replaced quickly and reliably, greatly shortening the replacement work time.Moreover, there is no residual old liquid, there is no dilution or contamination of the new liquid, and the liquid has the desired physical properties. can be replaced with
以下本発明を第１図〜第３図に示す具体例によってさら
に詳説する。The present invention will be explained in more detail below with reference to specific examples shown in FIGS. 1 to 3.
本発明においては、第１図のように、気体好ましくは空
気Ａの吹込み路１０および洗浄液Ｗ。たとえば温水の流
し込み路１１をポンプ室Ｓに連通して形成するとともに
、吹込み路１ｏおよび流し込み路１１にそれぞれ仕切り
弁１２．１３を設ける。In the present invention, as shown in FIG. 1, a blowing path 10 for a gas, preferably air A, and a cleaning liquid W are provided. For example, a hot water inflow path 11 is formed to communicate with the pump chamber S, and gate valves 12, 13 are provided in the inlet path 1o and the inflow path 11, respectively.
このように構成されたシリンジポンプにおいては、従来
例と基本的には同様に、吸引弁５を開とし、吐出弁６を
閉とした状態で、ピストン２を上昇させると、シリンダ
ー筒１内が負圧となるので、対象部位に対して供給すべ
き液りが吸引路３を介してシリンダー筒１内に流入する
。所定量の液の吸引が終了したならば、逆に吸引弁５を
閉とし、吐出弁６を開とした状態で、ピストン２を下降
させると、徐々にシリンダー筒１内の当該液りが吐出さ
れ、対象部位に送給される。In the syringe pump configured in this way, when the piston 2 is raised with the suction valve 5 open and the discharge valve 6 closed, the inside of the cylinder cylinder 1 is basically the same as the conventional example. Since the pressure is negative, the liquid to be supplied to the target area flows into the cylinder cylinder 1 via the suction path 3. When suction of a predetermined amount of liquid is completed, the suction valve 5 is closed and the piston 2 is lowered with the discharge valve 6 open and the liquid in the cylinder 1 is gradually discharged. and delivered to the target area.
しかるに、新たな液と置換させる場合においては、まず
第２図のように、仕切り弁１２．１３を開とし、吹込み
路１ｏがら空気Ａを流入させるとともに、ピストン２を
流し込み路１１の高さ位置より上位とした上で、流し込
み路１１を介して洗浄液Ｗｏを流し込む。このとき、ポ
ンプ室Ｓ内の空気Ａは吹込み路１０から流出する。However, when replacing the liquid with a new liquid, first open the gate valve 12.13 as shown in FIG. The cleaning liquid Wo is poured in through the pouring path 11 after the cleaning liquid Wo is placed higher than the position. At this time, the air A in the pump chamber S flows out from the blowing passage 10.
次いで、第３図のように、仕切り弁１３を閉とし、さら
に吸引弁５および吐出弁６を開とした状態で、吹込み路
１０から空気Ａを一気に吹き込む。Next, as shown in FIG. 3, with the gate valve 13 closed and the suction valve 5 and discharge valve 6 opened, air A is blown in from the blowing passage 10 at once.
その結果、空気Ａの吹込み圧力により、洗浄液Ｗ。As a result, due to the blowing pressure of the air A, the cleaning liquid W is released.
がポンプ室Ｓの内壁を洗浄しながら、流入路３および流
出路４に押しやられ、ポンプ室Ｓから極短時間に排出さ
れる。ポンプ室Ｓから排出された古い液については、た
とえば流入路３および流出路４にそれぞれ設けたドレン
（図示せず）により糸外に排出する。While cleaning the inner wall of the pump chamber S, it is pushed into the inflow path 3 and the outflow path 4, and is discharged from the pump chamber S in a very short time. The old liquid discharged from the pump chamber S is discharged to the outside of the yarn through drains (not shown) provided in, for example, the inflow path 3 and the outflow path 4, respectively.
この排出が終了したならば、新たな液を流入路３から流
入させ、定常のポンプ運転に移行し、新たな液について
の吸引・吐出を行う。When this discharge is completed, new liquid is allowed to flow in from the inflow path 3, and steady pump operation is started, and the new liquid is sucked and discharged.
第４図は変形例を示したもので、液の流入路３に４方弁
１４を設け、この４方弁１４を介して洗浄液Ｗ。の流し
込み、および空気への吹込みを行うようにしたものであ
る。したがって、この例では、吸引弁と洗浄液Ｗ。の流
し込み口および吹込み口とが兼用されている例である。FIG. 4 shows a modification, in which a four-way valve 14 is provided in the liquid inflow path 3, and the cleaning liquid W is supplied through the four-way valve 14. It is designed to pour water into the air and blow it into the air. Therefore, in this example, the suction valve and the cleaning liquid W. This is an example in which the inlet and the blower are used both as an inlet and an inlet.
第５図はシリンダー筒１の円錐底に排出ドレン路１５を
連通させて、洗浄液Ｗ。を自然排出に便ならしめるとと
もに、空気吹込み路１０に３方弁１６を設け、洗浄１ｗ
。の流し込み時における排気を別の口から行うようにし
た例である。In FIG. 5, a discharge drain passage 15 is connected to the conical bottom of the cylinder tube 1, and the cleaning liquid W is discharged. In addition, a three-way valve 16 is provided in the air blowing path 10, and the cleaning 1w
. This is an example in which exhaust is performed from a separate port during pouring.
上記例においては、流入路３および流出路４が個別にシ
リンダー筒１内に連通しているが、それらをたとえば３
方弁を介して一つの管路に連結してこの管路をシリンダ
ー筒１内に連通させることもできる。In the above example, the inlet passage 3 and the outlet passage 4 are communicated individually into the cylinder cylinder 1, but for example, three
It is also possible to connect to one conduit through a valve and to communicate this conduit into the cylinder tube 1.
以下実施例を示し、本発明の効果を明らかにする。 Examples will be shown below to clarify the effects of the present invention.
内径が３０ｎｕｎφ、長さ２００ｍｍのステンレス製シ
リンジポンプにおいて、洗浄水として４０℃の純水を用
い、これを洗浄の際に’１．．２１１／分の速度で流し
込み、その後空気を２ｋｇ／ａ！の圧力により吹込み、
ポンプ室内からの洗浄液の排出を行った。In a stainless steel syringe pump with an inner diameter of 30nunφ and a length of 200mm, pure water at 40°C was used as the washing water, and this was washed for 1. ．． Flow in at a speed of 211/min, then air at 2kg/a! Blows in with the pressure of
The cleaning liquid from the pump chamber was drained.
その結果、全洗浄置換時間は１．５分であり、洗浄液の
ポンプ室内における残液量は０．５−以下であった。As a result, the total cleaning replacement time was 1.5 minutes, and the amount of cleaning liquid remaining in the pump chamber was less than 0.5 minutes.
これに対して、単に洗浄液を流し込んで洗浄する場合の
全洗浄置換時間は３分であった。また、洗浄液のポンプ
室内における残液量は３−であった。さらに、ポンプ室
内の洗浄液をピストンを用いて排出させる場合、ピスト
ンの下降速度に依存し、低速移動ピストンの場合、７分
であった。On the other hand, the total cleaning replacement time when cleaning by simply pouring the cleaning liquid was 3 minutes. Further, the amount of cleaning liquid remaining in the pump chamber was 3-. Furthermore, when the cleaning liquid in the pump chamber was discharged using a piston, it depended on the descending speed of the piston, and in the case of a low-speed moving piston, it took 7 minutes.
以上の通り、本発明によれば、液の置換を迅速かつ確実
に行うとともに、新たな液の希釈や汚染がなくなるなど
の利点がもたらされる。As described above, according to the present invention, the liquid can be replaced quickly and reliably, and there are advantages such as no dilution or contamination of new liquid.
第１図〜第３図は本発明のシリンジポンプの運転例を順
にしめした概要図、第４図および第５図はそれぞれ態様
を異にする例の概要図である。
１・・・シリンダー筒、２・・・ピストン、３・・・流
入路、４・・・流出路、１０・・・吹込み路、１１・・
・流し込み路、Ａ・・・空気、Ｗｏ・・・洗浄液。
第１図
特許出願人 コニカ株式会社FIGS. 1 to 3 are schematic diagrams sequentially showing operational examples of the syringe pump of the present invention, and FIGS. 4 and 5 are schematic diagrams of different embodiments, respectively. DESCRIPTION OF SYMBOLS 1...Cylinder cylinder, 2...Piston, 3...Inflow path, 4...Outflow path, 10...Blowing path, 11...
・Flow channel, A...air, Wo...cleaning liquid. Figure 1 Patent applicant Konica Corporation
Claims (1)
れるとともに、そのピストンの後退および前進によりそ
れぞれ液体を流入および流出させるシリンジポンプにお
いて、 ポンプ室内の洗浄時において、ポンプ室内に洗浄液を流
し込み、その後ポンプ室内に気体を吹き込んでその吹込
み圧力により洗浄液を排出させることを特徴とするシリ
ンジポンプの洗浄方法。(1) In a syringe pump in which a piston is arranged in a cylinder so that it can freely move back and forth, and liquid flows in and out by moving the piston backward and forward, respectively, when cleaning the pump chamber, the cleaning liquid is poured into the pump chamber. A method for cleaning a syringe pump, the method comprising: then blowing gas into the pump chamber and discharging the cleaning liquid by the blowing pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2166366A JPH0458071A (en) | 1990-06-25 | 1990-06-25 | Cleaning method for syringe pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2166366A JPH0458071A (en) | 1990-06-25 | 1990-06-25 | Cleaning method for syringe pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0458071A true JPH0458071A (en) | 1992-02-25 |
Family
ID=15830071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2166366A Pending JPH0458071A (en) | 1990-06-25 | 1990-06-25 | Cleaning method for syringe pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0458071A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009054041A1 (en) * | 2007-10-23 | 2009-04-30 | Shigeo Ando | High-pressure homogenizer |
-
1990
- 1990-06-25 JP JP2166366A patent/JPH0458071A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009054041A1 (en) * | 2007-10-23 | 2009-04-30 | Shigeo Ando | High-pressure homogenizer |
| JP5165691B2 (en) * | 2007-10-23 | 2013-03-21 | 成雄 安藤 | High pressure homogenizer and cleaning method thereof |
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