US3848418A - Underground storage tank for low temperature liquefied gas - Google Patents

Underground storage tank for low temperature liquefied gas Download PDF

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Publication number
US3848418A
US3848418A US00350410A US35041073A US3848418A US 3848418 A US3848418 A US 3848418A US 00350410 A US00350410 A US 00350410A US 35041073 A US35041073 A US 35041073A US 3848418 A US3848418 A US 3848418A
Authority
US
United States
Prior art keywords
floor slab
lower floor
side wall
slab section
storage tank
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 - Lifetime
Application number
US00350410A
Other languages
English (en)
Inventor
K Takase
H Miyakoshi
M Ohmura
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.)
Ohbayashi Gumi Ltd
Obayashi Corp
Osaka Gas Co Ltd
Original Assignee
Obayashi Corp
Osaka Gas Co 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
Priority claimed from JP4109272A external-priority patent/JPS5623077B2/ja
Priority claimed from JP6834072A external-priority patent/JPS4926816A/ja
Application filed by Obayashi Corp, Osaka Gas Co Ltd filed Critical Obayashi Corp
Application granted granted Critical
Publication of US3848418A publication Critical patent/US3848418A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS 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
    • F17C3/00—Vessels not under pressure
    • F17C3/005—Underground or underwater containers or vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0678—Concrete

Definitions

  • a floor slab of the tank comprises an upper floor slab section placed July 8, l972 Japan, 47 68340 p e a e otto o the so, a ower oor ab [52] U CH 61/ 5 220/9 LG 220]; section, and a plurality of supporting members inter- [511 Cl U12 6 5/00 posed between said upper and lower floor slab sec- [58] Fieid l 5 36 A 5 tions.
  • a side wall of the tank extends to the lower b. 9
  • a floor slab section in contact therewith and forms an adiabatic space free from thesoil inside of the side [56]
  • References cued wall between the upper and lower floor slab sections UNITED STATES PATENTS and the supporting members.
  • such storage tanks are constructed in a group in ground, such as reclaimed ground, adjacent to a coast line for convenience of transportation. It is known that the storage tank is preferably constructed in the underground only with its top closure cover exposed outside of the ground to effectively isolate the tank from the outside temperature and to prevent any unforeseen accident caused by leakage of the liquefied gas from the storage tank.
  • the ground-water level in the ground adjacent to the coast line is relatively high and the storage tank is so large that the floor slab thereof is located in a level lower than the groundwater level in such ground.
  • an object of the present invention is to provide a safe and economical underground storage tank for a low temperature liquefied gas in which coldness of the liquefied gas is effectively intercepted so as not to frozen the soil under a floor slab of the tank.
  • a floor slab of a storage tank comprises an upper floor slab section, a lower floor slab section upon excavated bottom of the soil below the ground-water level, and a plurality of supporting members interposed between the upper and lower floor slab sections.
  • An annular side wall of the tank extends to the lower floor slab section in contact therewith and, thereby, forms adiabatic space free from the soil inside of the side wall between the upper and lower floor slab sections and the supporting member.
  • the groundwater With the presence of the adiabatic space the groundwater is effectively interrupted from entering into the adiabatic space and, the coldness of the liquefied gas is hardly conducted to the soil under the lower floor slab section, so that the storage tank does not receive any uplift thrust caused by freezing of the water and the soil.
  • a part of the upper and/or lower floor slab sections made of pearlite or adiabatic material may be applied thereto.
  • a heating means is provided for keeping the underside of the lower floor slab section to a temperature higher than a freezing temperature of the soil under the lower floor slab section.
  • the heating means may be an electric heater, a pipe heater through which heating fluid material passes, or a blower for circulating or feeding hot air, which may be provided inside of the lower floor slab section or inside of the adiabatic space.
  • a tunnel and a vertical shaft may be provided for leading the adiabatic spaces to the surface of the ground.
  • the annular side wall of the storage tank deeply extends into the ground to a level lower than the lower floor slab section of the tank to prevent the ground-water outside of the annular side wall from coming into the space enclosed by the annular wall and the lower floor slab section, and an artesian pressure reducing system using a perforated drain pipe net is provided for drawing the ground-water from the space.
  • a sand layer may be provided below the lower floor slab section to filter the ground-water.
  • the lower floor slab section may be made thick, heavy and strong enough to resist against the uplift of the ground-water.
  • the thickness and weight of the lower floor slab section are determined in proportion to the height of the ground-water level from the lower floor slab section and the diameter of the tank.
  • the thick lower floor slab section is not substantially effected by thermal stress caused by temperature difference between the upper and lower surfaces of the lower floor slab section.
  • FIG. 1 is a vertical sectional view of an underground storage tank according to a first embodiment of the present invention
  • FIG. 2 is a cross sectional view taken along line IIII in FIG. 1,
  • FIG. 3 is a vertical sectional view of an underground storage tank according to a second embodiment of the present invention.
  • FIG. 4 is a vertical sectional view of an underground storage tank according to third embodiment of the present invention.
  • FIG. 5 is a cross sectional view taken along line VV in FIG. 4.
  • an underground storage tank for a low temperature liquefied gas comprises a top closure cover 22 exposed to outside of the ground, a concrete annular side wall I] deeply extending into the ground, a concrete floor slab 12 provided at a level lower than a groundwater level 10, and insulation 23 for keeping the upper portion of the tank to a low temperature.
  • the annular side wall of the tank comprises an outer side wall lla extending deeply into the ground beyond the floor slab 12 of the tank and an inner side wall 11b contacting to the outer side wall I la and terminating at the floor slab 12.
  • the outer side wall 11a is formed by a slurry wall method, in which a reinforcing bar cage is inserted in an excavated space and a'concrete is placed into the space.
  • This outer side wall 11a effectively interrupts the ground-water outside of the outer wall from coming into the inside thereof, so that, when the next succeeding excavation work for the storage tank is advanced below the underground water level, pumping-out operation is easily performed.
  • a sand layer 18 for filtering the water, which is pumped out.
  • the floor slab 12 of the storage tank comprises a footing 14 formed on the sand layer 18 at the lower end of the inner side wall 11b, a plurality of supporting posts uprightly extending on the footing l4, and an upper floor slab section 13 integrally formed at lower portion of the inner side wall 11b and supported by the posts 15.
  • Formed inside of the inner side wall between the upper floor slab section, supporting posts, and the footing 14 which functions as the lower floor slab section is an adiabatic space 16 free from any soil therein.
  • a second embodiment shown in FIG. 3 and a third embodiment shown in FIGS. 4 and 5 are substantially same as the first embodiment mentioned above in respects that the floor slab 12 of the storage tank comprises a closed upper floor slab section 13, supporting posts 15, and a lower floor slab section 14, which forms an adiabatic space 16 free from the soil inside of the side wall 11.
  • the adiabatic space 16 is formed in the floor slab 12 of the storage tank, so that no excessive thermal stress is developed in the floor slab. Accordingly, even if the floor slab 12 of the storage tank is constructed from a relatively thin upper floor slab section 13 and a relatively thick lower floor slab section 14, the lower floor slab section 14 has a relatively small difference of temperature between the upper and lower surfaces thereof, thereby developing only an unobjectionable thermal stress therein.
  • heating elements 17 are provided in the adiabatic space 16.
  • the heating elements 17 in the adiabatic space positively intercept the coldness of the liquefied gas in the tank from being conducted to the soil under the lower floor slab section 14 and keep the temperature of the underside of the lower floor slab section 14 slightly higher than the freezing temperature of the soil, so that the freezing of the soil is surely prevented.
  • the adiabatic space 16 is communicated with the surface of the ground through a tunnel 20 and a vertical shaft 19, through which operators can reach the space 16 for inspection of the heating conditions and before completion of the storage tank, can carry in and out construction materials.
  • an artesian pressure reducing system using perforated drain pipe nets 26 is provided in the lower floor slab section 14.
  • the artesian pressure reducing perforations 26 are shown as magnified, the perforations actually occupy only about 0.01 percent of the entire area of the lower floor slab section 14.
  • Such artesian pressure redueing perforations are provided when the height of the ground-water level from the lower floor slab section 14 is so high that the lower floor slab section itself cannot resist against the uplift pressure of the groundwater.
  • the ground-water collected inside of the outer side wall 11a is pumped and temporarily stored at the bottom 21 of the vertical shaft 19, from which the water is pumped out on the ground.
  • the uplift of the ground-water acting against the lower floor slab section can be reduced to an unobjectionable degree.
  • the lower end of the outer side wall 11a terminates at the lower end of the lower floor slab section 14 in contact therewith and does not deeply extend in the ground beyond the lower floor slab section 14 as in the first embodiment.
  • the inner side wall 11b of the tank has the lower end terminated at the upper floor slab section 13, so that the lower portion of the outer side wall 11b between the upper and lower floor slab section 13 and 14 defines a part of the adiabatic space 16.
  • the lower floor slab section 14 is made thick, heavy and strong enough to resist against the uplift of the groundwater.
  • the thicker floor slab section 14 is not substantially effected by the thermal stress caused by temperature difference between the upper and lower surfaces thereof.
  • the storage tanks of these embodiments are preferably constructed to a place where the groundwater level is relatively low.
  • the storage tank is kept to a predetermined low temperature by insulation 23 suspended from the top closure cover 22 by a number of steel rods.
  • conventional means may be adapted for filling the lower temperature liquefied gas in the tank and for taking out it therefrom.
  • the liquefied gas is fed in the tank along the inner side surface of the tank and is taken out from the bottom portion thereof.
  • Evaporated gas is also extracted from the tank by a known method.
  • An underground storage tank for a low temperature liquefied gas comprising a top closure cover outside of ground, a concrete annular side wall deeply extending in the ground, a concrete floor slab provided at a level lower than a ground-water level, and an insulation for keeping, at least, the upper portion of said tank to a low temperature
  • said floor slab comprises an upper floor slab section, a lower floor slab section placed upon the excavated bottom of the soil, and a plurality of supporting members interposed between said upper and lower floor slab sections, said annular side wall extending to said lower floor slab section in contact therewith and forming an adiabatic space free from the soil inside of said side wall between said upper and lower floor slab sections and said supporting members.
  • annular side wall of said tank further extends to a level lower than said lower floor slab section and an artesian pressure reducing system is provided through said lower floor slab section for drawing outer side wall deeply extending in the ground beyond said lower floor slab section, and an inner side wall contacting with said outer side wall and terminating at said lower floor slab section in contact therewith.
  • said concrete annular side wall comprises an outer side wall whose lower end terminates at said lower floor slab section and in contact therewith, an an inner side wall contacting with said outer side wall and terminating at said upper floor slab section.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
US00350410A 1972-04-24 1973-04-12 Underground storage tank for low temperature liquefied gas Expired - Lifetime US3848418A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4109272A JPS5623077B2 (fr) 1972-04-24 1972-04-24
JP6834072A JPS4926816A (fr) 1972-07-08 1972-07-08

Publications (1)

Publication Number Publication Date
US3848418A true US3848418A (en) 1974-11-19

Family

ID=26380630

Family Applications (1)

Application Number Title Priority Date Filing Date
US00350410A Expired - Lifetime US3848418A (en) 1972-04-24 1973-04-12 Underground storage tank for low temperature liquefied gas

Country Status (6)

Country Link
US (1) US3848418A (fr)
CA (1) CA987510A (fr)
DE (1) DE2320151C3 (fr)
FR (1) FR2182499A5 (fr)
GB (1) GB1399567A (fr)
IT (1) IT984036B (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952531A (en) * 1973-01-31 1976-04-27 Simon-Carves Limited Cryogenic storage tanks
JPS58156685U (ja) * 1982-04-13 1983-10-19 川崎重工業株式会社 コンクリ−ト側壁を有する平底円筒タンク
US4697954A (en) * 1984-12-11 1987-10-06 Karl Grund Basemented floor structure for a waste dump
WO2000025059A1 (fr) * 1998-10-12 2000-05-04 Norconsult As Installation de stockage de gaz liquifies
CN104047432A (zh) * 2014-06-13 2014-09-17 长江勘测规划设计研究有限责任公司 一种地下核电站反应堆洞室安全壳穹顶安装方法
CN109442204A (zh) * 2018-12-19 2019-03-08 中海石油气电集团有限责任公司 一种具有薄承台的地下lng储罐
CN110552538A (zh) * 2019-09-18 2019-12-10 东北石油大学 超大正交桁架索梁保温铝合金组合储罐及施工方法
CN116379333A (zh) * 2023-02-28 2023-07-04 山东京博装备制造安装有限公司 一种超低温覆土罐及其制备工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2332227A (en) * 1942-01-31 1943-10-19 Pittsburgh Des Moines Company Insulated container with heated bottom
US2520883A (en) * 1942-07-11 1950-08-29 Linde Air Prod Co Container for liquefied gases
US3068654A (en) * 1958-09-22 1962-12-18 Interstate Service Corp Underground storage cavern and method of making same
US3274785A (en) * 1963-06-19 1966-09-27 Chicago Bridge & Iron Co Apparatus for preventing ice and frost formation under low temperature tanks
US3326011A (en) * 1965-10-21 1967-06-20 Cryogenic Entpr Ltd Cryogenic storage facility
US3504496A (en) * 1968-09-30 1970-04-07 Exxon Research Engineering Co Storage tank
US3748865A (en) * 1971-04-06 1973-07-31 Chicago Bridge & Iron Co Storage tank for liquefied gas having bottom insulation gas shielding

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2332227A (en) * 1942-01-31 1943-10-19 Pittsburgh Des Moines Company Insulated container with heated bottom
US2520883A (en) * 1942-07-11 1950-08-29 Linde Air Prod Co Container for liquefied gases
US3068654A (en) * 1958-09-22 1962-12-18 Interstate Service Corp Underground storage cavern and method of making same
US3274785A (en) * 1963-06-19 1966-09-27 Chicago Bridge & Iron Co Apparatus for preventing ice and frost formation under low temperature tanks
US3326011A (en) * 1965-10-21 1967-06-20 Cryogenic Entpr Ltd Cryogenic storage facility
US3504496A (en) * 1968-09-30 1970-04-07 Exxon Research Engineering Co Storage tank
US3748865A (en) * 1971-04-06 1973-07-31 Chicago Bridge & Iron Co Storage tank for liquefied gas having bottom insulation gas shielding

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3952531A (en) * 1973-01-31 1976-04-27 Simon-Carves Limited Cryogenic storage tanks
JPS58156685U (ja) * 1982-04-13 1983-10-19 川崎重工業株式会社 コンクリ−ト側壁を有する平底円筒タンク
JPH0212395Y2 (fr) * 1982-04-13 1990-04-06
US4697954A (en) * 1984-12-11 1987-10-06 Karl Grund Basemented floor structure for a waste dump
WO2000025059A1 (fr) * 1998-10-12 2000-05-04 Norconsult As Installation de stockage de gaz liquifies
CN104047432A (zh) * 2014-06-13 2014-09-17 长江勘测规划设计研究有限责任公司 一种地下核电站反应堆洞室安全壳穹顶安装方法
CN104047432B (zh) * 2014-06-13 2016-08-17 长江勘测规划设计研究有限责任公司 一种地下核电站反应堆洞室安全壳穹顶安装方法
CN109442204A (zh) * 2018-12-19 2019-03-08 中海石油气电集团有限责任公司 一种具有薄承台的地下lng储罐
CN110552538A (zh) * 2019-09-18 2019-12-10 东北石油大学 超大正交桁架索梁保温铝合金组合储罐及施工方法
CN116379333A (zh) * 2023-02-28 2023-07-04 山东京博装备制造安装有限公司 一种超低温覆土罐及其制备工艺
CN116379333B (zh) * 2023-02-28 2023-12-22 山东京博装备制造安装有限公司 一种超低温覆土罐及其制备工艺

Also Published As

Publication number Publication date
IT984036B (it) 1974-11-20
FR2182499A5 (fr) 1973-12-07
GB1399567A (en) 1975-07-02
DE2320151C3 (de) 1978-09-07
DE2320151A1 (de) 1973-10-31
CA987510A (en) 1976-04-20
DE2320151B2 (de) 1978-01-12

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