JPS6231799A - How to transport pumps or equipment in combustible liquefied gas storage tanks - Google Patents

How to transport pumps or equipment in combustible liquefied gas storage tanks

Info

Publication number
JPS6231799A
JPS6231799A JP17027485A JP17027485A JPS6231799A JP S6231799 A JPS6231799 A JP S6231799A JP 17027485 A JP17027485 A JP 17027485A JP 17027485 A JP17027485 A JP 17027485A JP S6231799 A JPS6231799 A JP S6231799A
Authority
JP
Japan
Prior art keywords
pipe
lpg
discharge pipe
storage tank
equipment
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
Application number
JP17027485A
Other languages
Japanese (ja)
Other versions
JPH0418199B2 (en
Inventor
Hideji Hikage
日景 秀治
Toru Otani
大谷 通
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.)
Toda Corp
Original Assignee
Toda Corp
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 Toda Corp filed Critical Toda Corp
Priority to JP17027485A priority Critical patent/JPS6231799A/en
Publication of JPS6231799A publication Critical patent/JPS6231799A/en
Publication of JPH0418199B2 publication Critical patent/JPH0418199B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/12Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/014Nitrogen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • F17C2221/032Hydrocarbons
    • F17C2221/035Propane butane, e.g. LPG, GPL
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01Propulsion of the fluid
    • F17C2227/0128Propulsion of the fluid with pumps or compressors
    • F17C2227/0135Pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0142Applications for fluid transport or storage placed underground

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

PURPOSE:To prevent the danger due to the high-pressure LPG by carrying out the replacement work for equipment after the LPG in a discharge pipe and a protection pipe is recovered into a storage tank by pouring water or incombustible gas into these pipes. CONSTITUTION:A water house 18 is connected to the upper part of a discharge pipe 7, and water is poured into the discharge pipe 7, and the LPG in the discharge pipe 7 is recovered into a storage tank. Then, a nitrogen house 19 in inserted into the upper part of a protection pipe 5, and the LPG in the protection 5 is recovered into the storage tank by pouring nitrogen gas. After the LPG is recovered perfectly, the discharge pipe 7 is pulled out, and pumps and equipment, etc. are repaired and replaced, and then the discharge pipe 7 is again inserted into the protection pipe 5, and the original state is restored.

Description

【発明の詳細な説明】 産業上の利用分野 LPG地下貯槽内のポンプ、機器材を完全に取り換える
ことができるようにしたLPG地下貯槽内のポンプ或は
機器材等の交換方法に関する発明である。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for replacing pumps, equipment, etc. in an LPG underground storage tank, which allows the pumps and equipment in the LPG underground storage tank to be completely replaced.

従来の技術 地上或はトンネル内配管内の油をブロテクシ璽ンパイプ
を経由して貯油槽に戻した後、油払出し管の上部より水
ホースを油払出し管の下部迄挿入して水を注入し、油を
油払出し管の上部からプロテクションパイプを経由して
貯油槽に戻し、完全に戻した後、プロテクションパイプ
内に窒素ホースを下部迄挿入し、窒素ガスを下部より注
入し、プロテクションパイプ内ノぺ一バーをプロテクシ
ョンパイプと貯油槽と連結しているパイプを介してペー
パーを貯油槽内に戻し完全に戻した後に機器材を上部に
引上げ交換或は補修する技術は特公昭57−41639
号にて知られているが、LPG地下貯蔵の場合、石油地
下貯蔵に比べ、貯蔵LPG +7) 4気圧が高く(プ
ロパン7気圧、ブタン1.2気圧)このため前記従来技
術では対処できないものである。
Conventional technology After the oil in the piping on the ground or in the tunnel is returned to the oil storage tank via the blow pipe, a water hose is inserted from the top of the oil discharge pipe to the bottom of the oil discharge pipe and water is injected. Return the oil from the top of the oil discharge pipe to the oil storage tank via the protection pipe. After returning the oil completely, insert the nitrogen hose into the protection pipe all the way to the bottom, inject nitrogen gas from the bottom, and drain the nozzle inside the protection pipe. The technique of returning the paper to the oil storage tank through the pipe that connects the bar to the protection pipe and the oil storage tank, and then pulling the equipment up to the top for replacement or repair is based on Japanese Patent Publication No. 57-41639.
In the case of underground storage of LPG, compared to underground storage of petroleum, the amount of stored LPG +7) is higher (7 atm for propane, 1.2 atm for butane), which cannot be handled by the conventional technology mentioned above. be.

発明が解決しようとする問題点 蒸気圧の高いLPG貯槽の機器材を安全に補修、交換等
を従来技術ではできないという問題点を解決しようとす
るものである。
Problems to be Solved by the Invention The invention attempts to solve the problem that it is not possible to safely repair or replace equipment for LPG storage tanks with high vapor pressure using conventional techniques.

問題点を解決するための手段 槽内に水を注入した後、吐出管内に水を注入して吐出管
内のLPGを貯槽内に回収し、その後プロテクションパ
イプに窒素ガスを注入してプロテクションパイプ内のL
PGガスを貯槽内に回収した後忙ポンプ及び機器材の交
換をするととくより、貯槽内の高圧LPGガス圧汚染さ
れることなく完全に機器材等を交換することができるよ
うにした発明である。
Measures to solve the problem After injecting water into the tank, water is injected into the discharge pipe to collect the LPG in the discharge pipe into the storage tank, and then nitrogen gas is injected into the protection pipe to remove the LPG in the protection pipe. L
This invention makes it possible to completely replace equipment, etc. without contaminating the high-pressure LPG gas pressure in the storage tank, rather than replacing the busy pump and equipment after collecting PG gas into the storage tank. .

実施例 地下貯槽(1)の縦孔(2)に上下二段の隔壁(31(
4)を設け、プロテクションパイプ(5)を地上からL
PG(6)の下部迄挿入してコンクリート隔壁(3)、
(4) K固定し、該プロテクションパイプ(5)内に
吐出管(7)を挿入し、吐出管(7)の上部を少しプロ
テクションパイプ(5)の上方に突出してプロテクショ
ンパイプ(5)の上部に固定し、吐出管(7)の上端忙
バルブ(8)を介して輸送等の管(9)を固定し、且つ
プロテクションパイプ(5)に隣接して上部の隔壁(3
)の上部に突出するようにした連通管(11を下部の隔
壁(4)の下部に突出するように挿入し、吐出管(7)
の上部とプロテクションパイプ(5)の上部にパルプQ
υα2を設け、ホース(13で連結する。
Example: Two upper and lower partition walls (31 (
4) and connect the protection pipe (5) from the ground to L.
Insert the concrete partition wall (3) to the bottom of the PG (6),
(4) Fix K, insert the discharge pipe (7) into the protection pipe (5), make the upper part of the discharge pipe (7) slightly protrude above the protection pipe (5), and remove the upper part of the protection pipe (5). A transport pipe (9) is fixed through the upper end valve (8) of the discharge pipe (7), and the upper partition wall (3) is fixed adjacent to the protection pipe (5).
), the communication pipe (11) is inserted so as to protrude from the bottom of the lower partition (4), and the discharge pipe (7)
and the top of the protection pipe (5).
υα2 is provided and connected with a hose (13).

Iは温度計、レベル計等の計装用保護管を示すものであ
る。
I indicates a protective tube for instruments such as a thermometer and a level meter.

連通管a〔は通常は圧力計を取付けるのに用いるもので
ある。
The communication pipe a is normally used to attach a pressure gauge.

作用 連通管(11に水ホースa9を連結し水を注入し、プロ
テクションパイプ(5)の下端がウォーターペ入 ッ)(lGの水内に完全に突Aするまで水を注入しく回
収する。それからバルブ(8)の上部に水ホース(L秒
を取り付はバルブ(8)を開は吐出管(7)内に水を注
入する(第3図の1)或は吐出管(7)の上部のパルプ
(8)をはずし、閉基板U′?)を取付は密閉し、閉塞
板(1刀の孔[有]示せず)に水ホースαδを連結し、
吐出管(7)内に水を注入し、吐出管(7)内のLPG
を貯槽内に回収する(第3図の2)。その後プロテクシ
ョンパイプ(5)の上部のバルブα2を取りはずし、代
りに窒素ホースα9を気密に内挿し、窒素ガスボンベ(
4)からホースCDを連結すると共に、プロテクノ1ン
パイプ(5)内に窒素ガスを注入してプロテクションパ
イプ(5)内のLPGガスを貯槽内に回収するものであ
る。
Connect the water hose A9 to the working communication pipe (11), inject water, and collect the water until the lower end of the protection pipe (5) is completely immersed in the water. Then, Attach a water hose (L second) to the top of the valve (8) and open the valve (8) to inject water into the discharge pipe (7) (1 in Figure 3) or the top of the discharge pipe (7). Remove the pulp (8), seal the closed board U'?), connect the water hose αδ to the closing plate (with one hole not shown),
Inject water into the discharge pipe (7) and remove the LPG in the discharge pipe (7).
is collected into the storage tank (2 in Figure 3). After that, remove the valve α2 at the top of the protection pipe (5), insert the nitrogen hose α9 in its place airtightly, and insert the nitrogen gas cylinder (
4) is connected to the hose CD, nitrogen gas is injected into the protection pipe (5), and the LPG gas in the protection pipe (5) is recovered into the storage tank.

完全に回収し終ったならば吐出管(7)を引き抜きポン
プ或は機器材等の補修、交換を行ない、再び吐出管(7
)ヲプロテクションパイプ(5)内K 挿入し再び元の
状態に戻しパルプ(8)及び管(9)を取付けるもので
ある。
After complete recovery, pull out the discharge pipe (7), repair or replace the pump or equipment, and then open the discharge pipe (7) again.
) Insert K into the protection pipe (5), return it to its original state, and attach the pulp (8) and pipe (9).

発明の効果 プロテクションパイプを水で完全に遮断してからLPG
及びLPGガスを貯槽内に回収することにより、高圧の
LPGガスからの危険を防止して安全に作業することが
できるものである。
Effects of the invention: Completely block the protection pipe with water before using LPG.
By recovering the LPG gas into the storage tank, danger from high-pressure LPG gas can be prevented and work can be carried out safely.

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

第1図は地下貯槽の全体の断面図、第2図乃至第4図は
交換状態の断面図である。
FIG. 1 is a sectional view of the entire underground storage tank, and FIGS. 2 to 4 are sectional views of the exchanged state.

Claims (1)

【特許請求の範囲】[Claims] (1)、ウォーターベット水内にプロテクションパイプ
の下端が完全に突入するまで連通管を介して貯槽内に水
を注入した後、吐出管内に水を注入して吐出管内のLP
Gを貯槽内に回収し、その後プロテクションパイプに窒
素ガスを注入してプロテクションパイプ内のLPGガス
を貯槽内に回収した後にポンプ及び機器材の交換をする
ことを特徴とするLPG地下貯槽内のポンプ或は機器材
等の交換方法。
(1) After injecting water into the storage tank through the communication pipe until the lower end of the protection pipe completely enters the water bed, water is injected into the discharge pipe and the LP in the discharge pipe is
A pump in an LPG underground storage tank, characterized in that the pump and equipment are replaced after recovering G into the storage tank and then injecting nitrogen gas into the protection pipe to recover the LPG gas in the protection pipe into the storage tank. Or how to replace equipment, etc.
JP17027485A 1985-08-01 1985-08-01 How to transport pumps or equipment in combustible liquefied gas storage tanks Granted JPS6231799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17027485A JPS6231799A (en) 1985-08-01 1985-08-01 How to transport pumps or equipment in combustible liquefied gas storage tanks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17027485A JPS6231799A (en) 1985-08-01 1985-08-01 How to transport pumps or equipment in combustible liquefied gas storage tanks

Publications (2)

Publication Number Publication Date
JPS6231799A true JPS6231799A (en) 1987-02-10
JPH0418199B2 JPH0418199B2 (en) 1992-03-27

Family

ID=15901904

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17027485A Granted JPS6231799A (en) 1985-08-01 1985-08-01 How to transport pumps or equipment in combustible liquefied gas storage tanks

Country Status (1)

Country Link
JP (1) JPS6231799A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105600726A (en) * 2016-03-02 2016-05-25 大庆华凯石油化工设计工程有限公司 Tank-bottom-cleaning buried material tank device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105600726A (en) * 2016-03-02 2016-05-25 大庆华凯石油化工设计工程有限公司 Tank-bottom-cleaning buried material tank device

Also Published As

Publication number Publication date
JPH0418199B2 (en) 1992-03-27

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