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JPH0310840B2 - - Google Patents

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Publication number
JPH0310840B2
JPH0310840B2 JP10064582A JP10064582A JPH0310840B2 JP H0310840 B2 JPH0310840 B2 JP H0310840B2 JP 10064582 A JP10064582 A JP 10064582A JP 10064582 A JP10064582 A JP 10064582A JP H0310840 B2 JPH0310840 B2 JP H0310840B2
Authority
JP
Japan
Prior art keywords
tank
vacuum
vacuum chamber
auxiliary tank
liquid
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.)
Expired
Application number
JP10064582A
Other languages
Japanese (ja)
Other versions
JPS58217896A (en
Inventor
Noriaki Mukai
Tadashi Takagaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Techno Engineering Co Ltd
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Techno Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Techno Engineering Co Ltd
Priority to JP10064582A priority Critical patent/JPS58217896A/en
Publication of JPS58217896A publication Critical patent/JPS58217896A/en
Publication of JPH0310840B2 publication Critical patent/JPH0310840B2/ja
Granted legal-status Critical Current

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  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は内部を負圧にすることにより液体を吸
入する真空槽において、その負圧を破壊すること
なく前記液体を排出する装置に関するものであ
る。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device for discharging the liquid without destroying the negative pressure in a vacuum chamber that sucks liquid by creating a negative pressure inside. be.

〔従来の技術〕[Conventional technology]

従来の真空槽は第1図に示すように、その頂部
に真空破壊弁8および吸入弁6を有する吸入管7
が取付けられると共に、逆流防止弁4を有する配
管5を介して真空ポンプ3が接続され、かつ真空
槽1の底部に排出弁9を有する排出管10が連結
されている。
As shown in FIG. 1, a conventional vacuum chamber has a suction pipe 7 having a vacuum break valve 8 and a suction valve 6 at its top.
is attached, a vacuum pump 3 is connected via a pipe 5 having a check valve 4, and a discharge pipe 10 having a discharge valve 9 is connected to the bottom of the vacuum chamber 1.

なお、この種のものとして関連するものには例
えば実開昭55−71092号が挙げられる。
A related example of this type is, for example, Utility Model Application Publication No. 55-71092.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

このような構造からなる真空槽1では、吸入弁
6を開き真空ポンプ3を運転して吸入作用を行つ
ている間は、真空槽1内に溜まつた液体を排出す
ることができない問題がある。
In the vacuum chamber 1 having such a structure, there is a problem that the liquid accumulated in the vacuum chamber 1 cannot be discharged while the suction valve 6 is opened and the vacuum pump 3 is operated to perform the suction action. .

本発明の目的は、真空ポンプの運転中でも真空
槽内の負圧を保持したままで、真空槽内の液体を
排出することができる真空槽内の液体の排出装置
を提供することを目的とする。
An object of the present invention is to provide a device for discharging liquid in a vacuum chamber, which can discharge liquid in the vacuum chamber while maintaining negative pressure in the vacuum chamber even when the vacuum pump is in operation. .

〔課題を解決するための手段〕[Means to solve the problem]

上記目的は、真空槽の内部を負圧にして前記真
空槽内部に吸入した液体を、前記真空槽から排出
する装置において、前記真空槽の底部に一体に結
合された補助槽を、該補助槽の底部に設けた排出
弁と、前記真空槽の上部と大気側との開口、前記
補助槽の上部と大気側との開口、前記真空槽の上
部と前記補助槽の下部との連通を切換える三方切
換弁と、前記真空槽の下部と前記補助槽の下部と
を連通するとともに前記補助槽から前記真空槽へ
の液体の逆流を防止する逆流防止弁とから構成す
ることによつて、達成される。
The above object is to provide an apparatus for discharging liquid sucked into the vacuum chamber from the vacuum chamber by making the inside of the vacuum chamber a negative pressure. A discharge valve provided at the bottom of the vacuum tank, an opening between the top of the vacuum tank and the atmosphere side, an opening between the top of the auxiliary tank and the atmosphere side, and a three-way switch for switching communication between the top of the vacuum tank and the bottom of the auxiliary tank. This is achieved by comprising a switching valve and a check valve that communicates the lower part of the vacuum tank and the lower part of the auxiliary tank and prevents backflow of liquid from the auxiliary tank to the vacuum tank. .

〔作用〕[Effect]

補助槽内の液体を排出しようとするときには、
三方切換弁を補助槽のみが大気側に開口するよう
に切換えることにより、配管をとおつて大気が補
助槽のみへ導入することが可能となり、このため
補助槽内の液体のみを真空ポンプの運転中でも排
出できる。
When trying to drain the liquid in the auxiliary tank,
By switching the three-way switching valve so that only the auxiliary tank opens to the atmosphere, it is possible to introduce the atmosphere only into the auxiliary tank through the piping, so that only the liquid in the auxiliary tank can be used even when the vacuum pump is operating. Can be discharged.

〔実施例〕〔Example〕

以下本発明の一実施例を図面について説明す
る。第2図に示す符号のうち、第1図に示す符号
と同一のものは同一部分を示すものとする。
An embodiment of the present invention will be described below with reference to the drawings. Among the symbols shown in FIG. 2, the same symbols as those shown in FIG. 1 indicate the same parts.

第2図において、2は真空槽1の底部に一体に
結合された補助槽、1′は真空槽1と補助水槽2
との間を仕切る隔壁11は大気側に開口すると共
に、真空槽1および補助槽2の上部に配管14,
15を介してそれぞれ連通する三方切換弁、12
は真空槽1および補助槽2の両底部を連通する配
管、13は配管12に設けられた逆流防止弁であ
る。
In Fig. 2, 2 is an auxiliary tank integrally connected to the bottom of the vacuum chamber 1, and 1' is the vacuum chamber 1 and the auxiliary water tank 2.
The partition wall 11 that partitions the space between the
three-way switching valves, 12 communicating with each other via 15;
1 is a pipe that communicates the bottoms of the vacuum chamber 1 and the auxiliary tank 2, and 13 is a check valve provided in the pipe 12.

本実施例は上記のように構成したので、真空ポ
ンプ3を運転して吸入作業を行つている間は、三
方切換弁11で配管14と15とを連通して両槽
1,2間の圧力差をなくすことにより真空槽1に
吸入した液体を配管12を通して補助槽2に溜
め、液体を排出しようとするときは、三方切換弁
11で配管14を閉じるとともに配管15を大気
側に開口して大気を補助槽2に導入し排出弁9を
開くことにより補助槽2内に流入し溜まつていた
液体を排出管10および排出弁9を経て排出する
ことができる。
Since this embodiment is configured as described above, while the vacuum pump 3 is operating to perform suction work, the three-way switching valve 11 connects the pipes 14 and 15 to maintain the pressure between the two tanks 1 and 2. By eliminating the difference, the liquid drawn into the vacuum tank 1 is stored in the auxiliary tank 2 through the pipe 12, and when the liquid is to be discharged, the pipe 14 is closed with the three-way switching valve 11, and the pipe 15 is opened to the atmosphere. By introducing atmospheric air into the auxiliary tank 2 and opening the discharge valve 9, the liquid that has flowed into the auxiliary tank 2 and accumulated therein can be discharged via the discharge pipe 10 and the discharge valve 9.

上述の実施例では真空槽1と補助槽2を一体に
形成したが、別個に形成して接続してもよいこと
はもちろんである。
In the above embodiment, the vacuum chamber 1 and the auxiliary chamber 2 are formed integrally, but it goes without saying that they may be formed separately and connected.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明によれば、真空ポン
プの運転中でも真空槽内の真空を保持したまま
で、真空槽内の液体を排出することができるの
で、吸入を中断することなく続行することができ
る。
As explained above, according to the present invention, the liquid in the vacuum chamber can be discharged while maintaining the vacuum in the vacuum chamber even when the vacuum pump is in operation, so that suction can be continued without interruption. can.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の真空槽の配管系統図、第2図は
本発明の液体排出装置の一実施例を備える真空槽
の配管系統図である。 1……空気槽、2……補助槽、9……排出弁、
11……三方切換弁、14,15……配管。
FIG. 1 is a piping system diagram of a conventional vacuum chamber, and FIG. 2 is a piping system diagram of a vacuum chamber equipped with an embodiment of the liquid discharge device of the present invention. 1... Air tank, 2... Auxiliary tank, 9... Discharge valve,
11... Three-way switching valve, 14, 15... Piping.

Claims (1)

【特許請求の範囲】[Claims] 1 真空槽の内部を負圧にして前記真空槽内部に
吸入した液体を、前記真空槽から排出する装置に
おいて、前記真空槽の底部に一体に結合された補
助槽を設け、該補助槽の底部に設けた排出弁と、
前記真空槽の上部と大気側との開口、前記補助槽
の上部と大気側との開口、前記真空槽の上部と前
記補助槽の上部との連通を切換える三方切換弁
と、前記真空槽の下部と前記補助槽の下部とを連
通するとともに前記補助槽から前記真空槽への液
体の逆流を防止する逆流防止弁を設けたことを特
徴とする真空槽内の液体の排出装置。
1. A device for discharging the liquid sucked into the vacuum chamber from the vacuum chamber by applying negative pressure to the inside of the vacuum chamber, wherein an auxiliary tank is provided integrally with the bottom of the vacuum chamber, and the bottom of the auxiliary tank is connected to the bottom of the vacuum tank. a discharge valve installed in the
an opening between the top of the vacuum tank and the atmosphere side, an opening between the top of the auxiliary tank and the atmosphere side, a three-way switching valve that switches communication between the top of the vacuum tank and the top of the auxiliary tank, and a bottom of the vacuum tank. A device for discharging liquid in a vacuum tank, characterized in that a check valve is provided that communicates between the auxiliary tank and the lower part of the auxiliary tank and prevents backflow of liquid from the auxiliary tank to the vacuum tank.
JP10064582A 1982-06-14 1982-06-14 Discharger for liquid in vacuum tank Granted JPS58217896A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10064582A JPS58217896A (en) 1982-06-14 1982-06-14 Discharger for liquid in vacuum tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10064582A JPS58217896A (en) 1982-06-14 1982-06-14 Discharger for liquid in vacuum tank

Publications (2)

Publication Number Publication Date
JPS58217896A JPS58217896A (en) 1983-12-17
JPH0310840B2 true JPH0310840B2 (en) 1991-02-14

Family

ID=14279556

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10064582A Granted JPS58217896A (en) 1982-06-14 1982-06-14 Discharger for liquid in vacuum tank

Country Status (1)

Country Link
JP (1) JPS58217896A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6533420B2 (en) * 2015-06-22 2019-06-19 株式会社ヒラノテクシード Suction device and web connection device using it

Also Published As

Publication number Publication date
JPS58217896A (en) 1983-12-17

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