JPS58165582A - Cold state maintenance apparatus for low-temperature secondary pump - Google Patents
Cold state maintenance apparatus for low-temperature secondary pumpInfo
- Publication number
- JPS58165582A JPS58165582A JP4699082A JP4699082A JPS58165582A JP S58165582 A JPS58165582 A JP S58165582A JP 4699082 A JP4699082 A JP 4699082A JP 4699082 A JP4699082 A JP 4699082A JP S58165582 A JPS58165582 A JP S58165582A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- low
- pump
- liquid
- valve
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は低沸点液体を貯蔵する低温タンクに備えられる
低温セカンダリ−ポンプの冷却保持装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling maintenance device for a low temperature secondary pump installed in a low temperature tank storing a low boiling point liquid.
一般に、低温セカンダリ−ポンプは、送液を停止してい
る間も、再びいつでも起動して送液ができるように冷却
しておく必要がある。このため、従来は、低温セカンダ
リ−ポンプのサクションポット内の液のレベルをコント
ロールすることによシ低温セカンダリ−ポンプを冷却保
持することが一般的に行われている。しかし上記従来方
式においては、長時間経つとサクション・ポット内の液
が濃縮（重質〕化し、このために低温セカンダリ−ポン
プを定期的に短時間運転するとか、ドレン抜きをする等
の面倒な操作を必要としていた。In general, a low-temperature secondary pump needs to be kept cool even while liquid feeding is stopped so that it can be started up again at any time to feed liquid. For this reason, conventionally, it has been common practice to keep the low temperature secondary pump cool by controlling the level of liquid in the suction pot of the low temperature secondary pump. However, with the above conventional method, the liquid in the suction pot becomes concentrated (heavy) over a long period of time, which requires troublesome operations such as periodically running the low temperature secondary pump for short periods of time or draining the liquid. It required manipulation.
、本発明は、上記面倒な操作を排除して作業の省力化を
可能にするべくなしたもので、ミニマムフロー管に温度
調節用液弁を設けると共にガス抜き管に温度調節用ガス
弁を設け、且つ低温セカンダリ−ポンプ内の低温液の温
度を検出しその検出値に再づき前記両弁の開閉を行う温
度制御装置を設け、低温プライマリ−ポンプの吐出圧力
により前記両弁の開作動時に低温液を流すことにより自
動的に冷却するようにしたことを特徴とする低温セカン
ダリ−ポンプの冷却保持装置、に係るものである。The present invention has been made to eliminate the above-mentioned troublesome operations and to save labor.The minimum flow pipe is provided with a temperature control liquid valve, and the gas vent pipe is provided with a temperature control gas valve. , and is provided with a temperature control device that detects the temperature of the low-temperature liquid in the low-temperature secondary pump and opens and closes both valves based on the detected value; This invention relates to a cooling and holding device for a low-temperature secondary pump, characterized in that it is automatically cooled by flowing liquid.
以下本発明の実施例を図面を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
図示する如り、一般に低温タンク（１）の低温液（低沸
点（資）（２）は、低温グレイマリ−ポンプ（３）によ
り配管（４）ヲ介して低温セカンダリ−ポンプ（５）の
サクションポット（６）内に送られ、更にサクションポ
ット（６）内の液はモータ（７）およびポンプ本体（８
）によシ吸引され、高圧送液管（９）によシ吐出弁（イ
）を介して目的地に送給されるようになっている。また
前記高圧送液管（９）における吐出弁（７）の上流側と
低温タンク（１）との間をミニマム７０−弁αカを備え
たミニマムフロー管（６）にて接続している。また、前
記サク？ヨンボット（６）の上部と低温タンク（１）と
の間を〃１類抜き弁ｒＪ３を備えたガス抜き管０→にて
接続している。図中（ハ）は前記配管（４）に接続され
て低温プライマリ−ポンプ（３）の吐出圧力により火力
発電所或いは都市ガス設備に低温液を送る中圧送液管を
示す。As shown in the figure, in general, the low temperature liquid (low boiling point (supply) (2) in the low temperature tank (1) is transferred to the suction pot of the low temperature secondary pump (5) via the pipe (4) by the low temperature gray mary pump (3). (6), and the liquid in the suction pot (6) is sent to the motor (7) and the pump body (8).
), and is supplied to the destination via the high-pressure liquid supply pipe (9) and the discharge valve (a). Further, the upstream side of the discharge valve (7) in the high-pressure liquid transfer pipe (9) and the low temperature tank (1) are connected by a minimum flow pipe (6) equipped with a minimum 70-valve α force. Also, the above-mentioned Saku? The upper part of the Yonbot (6) and the low temperature tank (1) are connected by a gas vent pipe 0→ equipped with a type 1 vent valve rJ3. In the figure, (c) shows a medium-pressure liquid sending pipe that is connected to the pipe (4) and sends low-temperature liquid to a thermal power plant or city gas facility using the discharge pressure of the low-temperature primary pump (3).
上記した流路回路において、前記ミニマムフロー管（２
）に、前記ミニマムフロー弁αｐと並列に温度調節用液
弁（４）を設けると共に、前記ガス抜き管（ロ）に、前
記ガス抜き弁０３と並列に温度調節用ガス弁αηを設け
、更に、前記サクションポット（６）に内部低温液の温
度を検出し、その検出温度に基づいて前記温度調節用液
弁（至）及び温度調節用ガス弁α力の開閉側［−行う温
度制御装置（ｌ樽を設ける。In the above-described flow path circuit, the minimum flow tube (2
), a temperature regulating liquid valve (4) is provided in parallel with the minimum flow valve αp, and a temperature regulating gas valve αη is provided in parallel with the gas venting valve 03 in the gas venting pipe (b), and further , the temperature of the internal low-temperature liquid in the suction pot (6) is detected, and based on the detected temperature, the temperature control liquid valve (to) and the temperature control gas valve α force are opened and closed [-a temperature control device ( Provide a barrel.
上記において、低温セカンダリ−ポンプ（５）が作動し
ている間は、弁α０（ｌ］）は作動しておシ、また低温
セカンダリ−ポンプ（５）は液によって充分冷却されて
いるので、温度制御装＠（ト）は作用せず、弁（４）θ
ηは閉、、）じられている。低温セカンダリ−ポンプ（
５）が停□、止すると、前記各弁（ト）αυは閉じ１′
：
られる。 ：・□ｈ
）
上記停止の状態が続くと、外部からの入熱によシサクシ
ョンポット（６）内の温度が上昇するが、一定の温度に
達すると温度制御装置（至）が作用して前記弁（（ロ）
０ηを開ける。このとき、低温セカンダリ−ポンプ（５
）には、前記中圧送液管０に低温液を送るだめの低温プ
ライマリ−ポンプ（３）の吐出圧力が作用しているので
、サクションポット（６）内の低温液が温度調節用液弁
（−及びミニマムフロー管α２を介して低温タンク（１
）に送られることになシ、低温セカンダリ−ポンプ（５
）の出口ｍｕ。In the above, while the low-temperature secondary pump (5) is operating, the valve α0(l) is in operation, and since the low-temperature secondary pump (5) is sufficiently cooled by the liquid, the temperature Control device @(g) does not work, valve (4) θ
η is closed, ). Low temperature secondary pump (
When 5) stops □, each valve (g) αυ closes 1'
: To be done. :・□h) If the above-mentioned stopped state continues, the temperature inside the suction pot (6) will rise due to heat input from the outside, but when it reaches a certain temperature, the temperature control device (to) will be activated. Said valve ((b)
Open 0η. At this time, the low temperature secondary pump (5
), the discharge pressure of the low-temperature primary pump (3) that sends the low-temperature liquid to the medium-pressure liquid supply pipe 0 is acting, so the low-temperature liquid in the suction pot (6) flows through the temperature control liquid valve ( - and the cryogenic tank (1
), the low temperature secondary pump (5
) exit mu.
即ちポンプ本体（８）及びモータ（７）が冷却され、ま
だ同時にサクションポット（６）内の気化ガスおよび低
温液が温度調節用ガス弁αη及びガス抜き管α→を介し
て低温タンク（１）に送られることになり低温セカンダ
リーポンプ（５）の入口側、即ちサクションポット（６
）の内部が冷却される。That is, the pump body (8) and motor (7) are cooled, and at the same time, the vaporized gas and low-temperature liquid in the suction pot (6) are transferred to the low-temperature tank (1) via the temperature control gas valve αη and the gas vent pipe α→. The inlet side of the low-temperature secondary pump (5), that is, the suction pot (6
) is cooled inside.
サクションポット（６）内の液温が所要の低い温度にな
ると、温度制御装置（ト）が作用して前ｊ己弁（４）α
ηを閉じる。上記操作を自動的に繰返して低温セカンダ
リ−ポンプの冷却保持が自動的に行われる。When the temperature of the liquid in the suction pot (6) reaches the required low temperature, the temperature control device (g) acts to close the front valve (4) α.
Close η. The above operation is automatically repeated to automatically keep the low temperature secondary pump cool.
向、本発明は上記実施例にのみ限定されるものではなく
、本発明の要旨を逸脱しない範囲内において種々変更を
加え得るものである。However, the present invention is not limited to the above embodiments, and various changes may be made without departing from the gist of the present invention.
上述した本発明の低温セカンダリ−ポンプの冷却保持装
置によれば、低温セカンダリ−ポンプの冷却保持を自動
的に行わしめることができ、且つサクションポット内の
低温液が濃縮（重質）化するようなこともないので従来
のように定期的なセカンダリ−ポンプの運転とかドレン
抜きを行うといった面倒な操作をなくして大幅な省力化
を図ることができ、また低温ブライマリ−ポンプの吐出
圧力を利用していることにより特別の駆動装置を必要と
せず、安価に実施できると共に動力消費も低減できる、
等の優れた効果を奏し得る。According to the above-described cooling and holding device for a low-temperature secondary pump of the present invention, the low-temperature secondary pump can be automatically kept cool, and the low-temperature liquid in the suction pot is not concentrated (heavy). This eliminates the troublesome operations of regularly operating the secondary pump and draining water as in the past, resulting in significant labor savings.In addition, the discharge pressure of the low-temperature briny pump can be used. Because of the
It can produce excellent effects such as
図面は本発明の一実施列を示す説明図である。
（１）は低温タンク、（３）は低温ブライマリ−ポンプ
、（５）は低温セカンダリ−ポンプ、（６）はサクショ
ンポット、（９）は高圧送液管、αηはミニマムフロー
弁、（６）はミニマムフロー管、０はガス抜き弁、０４
はガス抜き管、（ハ）は中圧送液管、（ト）は温変調節
用液弁、０旧ま温度調節用ガス弁、（ハ）は温度制御装
置を示す。
特許出願人
石川島播磨重工業株式会社
特許出願人代理人The drawing is an explanatory diagram showing one embodiment of the present invention. (1) is a low temperature tank, (3) is a low temperature briny pump, (5) is a low temperature secondary pump, (6) is a suction pot, (9) is a high pressure liquid pipe, αη is a minimum flow valve, (6) is the minimum flow pipe, 0 is the gas vent valve, 04
(c) shows a gas vent pipe, (c) shows a medium-pressure liquid sending pipe, (g) shows a liquid valve for temperature change control, (c) shows a temperature control gas valve, and (c) shows a temperature control device. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd. Patent applicant agent
Claims (1)
してなる低温セカンダリ−ポンプの高圧送液管に設けた
ミニマムフロー管に、ミニマムフロー弁と並列に温度調
節用液弁を設け、且つガス抜き管に、ガス抜き弁と並列
に温度調節用ガス弁を設け、更に前記低温セカンダリ−
ポンプ内の低温液の温度を検出してその検出値に基づき
前記両弁の開閉を行う温度制御装置を設け、前記低温プ
ライマリ−ポンプの吐出圧力を利用して冷却を行わしめ
るようにしたことを特徴とする低温セカンダリ−ポンプ
の冷却保持装置。1) A temperature control liquid valve is provided in parallel with the minimum flow valve in the minimum flow pipe installed in the high pressure liquid supply pipe of the low temperature secondary pump connected to the low temperature tank via the low temperature primary pump, and a gas venting A temperature regulating gas valve is provided in the pipe in parallel with the gas vent valve, and the low temperature secondary
A temperature control device is provided that detects the temperature of the low temperature liquid in the pump and opens and closes both valves based on the detected value, and cooling is performed using the discharge pressure of the low temperature primary pump. A cooling and holding device for a low-temperature secondary pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4699082A JPS58165582A (en) | 1982-03-24 | 1982-03-24 | Cold state maintenance apparatus for low-temperature secondary pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4699082A JPS58165582A (en) | 1982-03-24 | 1982-03-24 | Cold state maintenance apparatus for low-temperature secondary pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58165582A true JPS58165582A (en) | 1983-09-30 |
Family
ID=12762632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4699082A Pending JPS58165582A (en) | 1982-03-24 | 1982-03-24 | Cold state maintenance apparatus for low-temperature secondary pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58165582A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10065850B2 (en) | 2012-08-01 | 2018-09-04 | Gp Strategies Corporation | Multiple pump system |
-
1982
- 1982-03-24 JP JP4699082A patent/JPS58165582A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10065850B2 (en) | 2012-08-01 | 2018-09-04 | Gp Strategies Corporation | Multiple pump system |
| US10836627B2 (en) | 2012-08-01 | 2020-11-17 | Cryogenic Industries, Llc | Multiple pump system |
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