专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH06313687A LIQUEFIED NATURAL GAS VAPORIZER USING ACCUMULATED COLD HEAT 失效
公开(公告)号：JPH06313687A
公开(公告)日：1994-11-08
申请号：JP10143793
申请日：1993-04-27
申请人： OSAKA GAS CO LTD , KOBE STEEL LTD
发明人： HISAKADO YOSHINORI , YAMAZAKI YOSHIHIRO , UENO KOICHI , KONISHI KEIZO
IPC分类号： F28D3/02 , F28D7/10 , F28D7/16 , F28D20/00
摘要： PURPOSE:To effectively utilize cold heat of liquefied natural gas and to simplify a vaporizing facility by heating to vaporize the gas with cold heat accumulator, and providing means for storing the accumulator cooled by absorbing cold heat from the gas to be vaporized. CONSTITUTION:After LNG 2 of an LNG tank 2 is supplied via an LNG line 3 to an LNG vaporizer 4, it is supplied to a demander from an LNG line 5. Brine cold heat accumulator to become a heat source of the vaporizer 4 is fed under pressure by an ambient temperature brine pump 8 from above a cold accumulation vessel 6 via an ambient temperature brine conduit 7, and supplied via another ambient temperature brine conduit 9. Further, the vaporizer 4 subcools brine via LNG 2 to be vaporized, and returns it to a lower part of the vessel 6 via a low temperature brine tube 10. The accumulator of the vessel 6 is fed under pressure by a low temperature brine pump 12 via a low temperature brine tube 11, and then supplied to a cold heat using system 14 via a low temperature brine supply tube 13.

2. 发明专利

JPH06159596A VAPORIZER FOR LOW TEMPERATURE LIQUID 失效
公开(公告)号：JPH06159596A
公开(公告)日：1994-06-07
申请号：JP31526292
申请日：1992-11-25
申请人： OSAKA GAS CO LTD , KOBE STEEL LTD
发明人： HISAKADO YOSHINORI , YAMAZAKI YOSHIHIRO , KONISHI KEIZO , SAKURABA ICHIRO , UENO KOICHI , KUWABARA KAZUHIKO
IPC分类号： F17C9/02
摘要： PURPOSE:To ensure good vaporization operation of liquefied natural gas and the like even when the operation pressure is low, and to inhibit or prevent icing in an inner heat exchanger tube while keeping good performance of heat exchange, without increasing the temperature and the flow of a heating medium such as sea water. CONSTITUTION:An inner heat exchanger tube 16 for flowing sea water, and an outer heat exchanger tube 36 are provided in double layer in a vaporization chamber 46, and a gas route 37 is formed between the both heat exchanger tubes 16 and 36. The gas route 37 and the inside of the vaporization chamber 46 are communicated to a turning-point chamber 38, and the inside of the gas route 37 is communicated to a heating chamber 48. A bypass route 54 for bypassing the gas route 37 is provided between the inside of the turning-point chamber 38 and the inside of the heating chamber 48, and both of the chambers 38 and 48 are directly communicated together through the bypass route 54.

3. 发明专利

JPH05141892A HEAT EXCHANGER 失效
公开(公告)号：JPH05141892A
公开(公告)日：1993-06-08
申请号：JP30206991
申请日：1991-11-18
申请人： OSAKA GAS CO LTD , KOBE STEEL LTD
发明人： YAMAZAKI YOSHIHIRO , KONISHI KEIZO , UENO KOICHI , TSUKAMOTO AKIO , KUWABARA KAZUHIKO , SAKURABA ICHIRO
IPC分类号： F28D7/16 , F17C9/02 , F28F9/02 , F28F9/22
摘要： PURPOSE:To prevent fatigue, breakdown of a tube plate by preventing a large temperature difference between both surfaces of the plate at the time of introducing fluid into a heat exchanging chamber. CONSTITUTION:The heat exchanger comprises a lower tube plate 14 for partitioning a heat exchanging chamber 15 and a sea water outlet chamber 20, and a partition plate 34 provided to an inlet nozzle 30 for introducing fluid such as LNG, etc., in the chamber 14. Direct contact of the fluid such as LNG, etc., to be introduced from the nozzle 30 with a lower tube plate 14 is prevented by the plate 34.

4. 发明专利

JPH04251182A COLD HEAT ACCUMULATING VESSEL 失效
公开(公告)号：JPH04251182A
公开(公告)日：1992-09-07
申请号：JP41660390
申请日：1990-12-29
申请人： OSAKA GAS CO LTD , KOBE STEEL LTD
发明人： HISAKADO YOSHINORI , YAMAZAKI YOSHIHIRO , IWAHASHI HIROSHI , MAKINO MAKOTO , INOSHITA HIDEYOSHI , ITO YUTAKA , KOBUKAI AKIRA , AOKI HIRONORI
IPC分类号： F25D3/00 , F25J5/00 , F28D20/00
摘要： PURPOSE:To accumulate the cold heat of liquefied natural gas and the like and utilize it effectively. CONSTITUTION:Cold heat accumulating medium 2 is received in a vessel 1 and a heat transfer tube 3, extending horizontally and connected in up-and-down direction, is arranged in the cold heat accumulating medium 2 while liquefied gas to be vaporized is supplied from the lower part of the heat transfer tube 3 and vaporized gas is taken out of the upper part of the heat transfer tube 3. Another heat transfer tube 11, supplying heat source fluid having a temperature higher than the vaporizing temperature of the liquefied gas and extending horizontally, is arranged near the upper part of the heat transfer tube 3.

5. 发明专利

JPH02171580A AIR SEPARATING DEVICE 失效
公开(公告)号：JPH02171580A
公开(公告)日：1990-07-03
申请号：JP32715088
申请日：1988-12-23
申请人： KOBE STEEL LTD , OSAKA GAS CO LTD
发明人： SENCHI TETSUO , TANAKA MASAYUKI , ASADA KAZUHIKO , TOMISAKA YASUSHI , HISAKADO YOSHINORI , YAMAZAKI YOSHIHIRO
IPC分类号： F25J3/04
摘要： PURPOSE:To secure as much production volume in the nighttime operation as in the daytime operation and save the power consumption to drive a compressor by increasing he flow rate of the high pressure nitrogen gas to an LNG heat exchanger when the liquefied natural gas supply rate drops, and decreasing same when the liquefied natural gas supply rate increases. CONSTITUTION:A circulated nitrogen compressor 21 consists of a low pressure stage compressor 22 and a high pressure stage compressor 23. The high pressure stage compressor 23 comprises a first compressor 23a which is operated day and night and a second compressor 23b which is operated only at night, which are parallelly connected. Therefore, during the daytime when the LNG supply rate is high, a small quantity of high pressure nitrogen gas is supplied to an LNG heat exchanger 24 by means of the first compressor 23a, and the coldness in the low temperature range where the exergy of LNG is great is used to cool the high pressure nitrogen gas. Meanwhile, during the nighttime when the LNG supply rate is low, the high pressure nitrogen gas is supplied to the LNG heat exchanger 24 at a large flow rate by means of both the first and second compressors 23a, 23b. Because the flow rate of the high pressure nitrogen gas to the LNG heat exchanger 24 is so increased, the coldness retained by LNG can be used not only in the low temperature range but also in the high temperature range.

6. 发明专利

JPH06313498A LIQUEFYING AND GASIFYING DEVICE FOR CITY GAS AND ITS OPERATION METHOD 失效
公开(公告)号：JPH06313498A
公开(公告)日：1994-11-08
申请号：JP10143693
申请日：1993-04-27
申请人： OSAKA GAS CO LTD , KOBE STEEL LTD
发明人： HISAKADO YOSHINORI , YAMAZAKI YOSHIHIRO , ITO YUTAKA , NISHIMURA HIROO
IPC分类号： C10L3/00 , F17C9/00 , F17C9/04 , F25D3/10 , F25J1/00
摘要： PURPOSE:To carry out safe operation and simlify of maintenance by effectively liquefying and gasifying city gas in one heat generating vessel. CONSTITUTION:City gas supplied from a feeder pipe passage 1 to an intermediate pressure A passage 4 is liquefied and stored in an LNG tank 10 when demand is small. When demand is large, it is gasified and evenly suplied. At the time of gasifying the city gas, cooling heat is extracted from a tube 21 in a liquefying and gasifying heat exchanger 20, and stored in a heat generating agent 44 in a heat generating vessel 30 as latent heat or sensible heat. When the city gas is liquefied, the stored cooling heat is supplied to the tube 21 from tubes 81, 82, 83. The cooled and liquefied city gas is stored on the LNG tank 10. In the heat generating vessel 30, the heat generating agent 44 is stored and supplied according to temperature level by utilizing temperature distribution of the heat generating agent 4 in a vertical direction.

7. 发明专利

JPH05312300A 失效
公开(公告)号：JPH05312300A
公开(公告)日：1993-11-22
申请号：JP11929792
申请日：1992-05-12
申请人： OSAKA GAS CO LTD , KOBE STEEL LTD
发明人： HISAKADO YOSHINORI , YAMAZAKI YOSHIHIRO , KONISHI KEIZO , SAKURABA ICHIRO , UENO KOICHI , KUWABARA KAZUHIKO , SUGINO KUNITERU
IPC分类号： F17C9/02 , F25D3/10
摘要： PURPOSE:To restrict or prevent ice from accreting to the inside of an internal heat-transfer pipe without increasing the temperature and flow rate of a heating medium including sea water while keeping excellent heat transferring performance. CONSTITUTION:In this vaporizer, an LNG is introduced into the vaporizing chamber, wherein an internal heat-transfer pipe 16 in which sea water flows and an external heat-transfer pipe 36 are arranged doubly. The outside pipe 52 is arranged ground the external heat-transfer pipe 36, extending from the joint section of the external heat-transfer pipe 36 and the top face of a third tube plate 30 to the middle of the external heat-transfer pipe 36, and the lower end 52a of this outside pipe 52 is connected to the top face of the third tube plate 30, making an upper end 52b a free end. A lid 54 is liftably inserted into the gap 56 between the outside pipe 52 and the external heat-transfer pipe 36, sealing the gap 56 by this lid.

8. 发明专利

JPH05203098A VAPORIZING DEVICE FOR LIQUEFIED NATURAL GAS 失效
公开(公告)号：JPH05203098A
公开(公告)日：1993-08-10
申请号：JP12341491
申请日：1991-05-28
申请人： OSAKA GAS CO LTD , KOBE STEEL LTD
发明人： HISAKADO YOSHINORI , YAMAZAKI YOSHIHIRO , UENO KOICHI , TSUKAMOTO AKIO , SUGINO KUNITERU , KONISHI KEIZO
IPC分类号： F17C7/04
摘要： PURPOSE:To prevent freezing in a heat transfer pipe by providing a simple structure, so that a heating medium in the heat transfer pipe can be quickly discharged at the time of emergency. CONSTITUTION:In a vaporizing device for liquefied natural gas, heat transfer pipes 40, 42 are inserted in a vertical direction through a liquefied natural gas vaporizing vessel 10, to provide an outlet chamber 22, having an outlet 34 of a heating medium W, in a position of covering upper ends of these heat transfer pipes 40, 42. The upper end position of the heat transfer pipes 40, 42 is set to a position higher than the position of a lowermost end part 43 of the outlet 34.

9. 发明专利

JPH10195464A PRODUCTION OF TOWN GAS AND APPARATUS THEREFOR 失效
公开(公告)号：JPH10195464A
公开(公告)日：1998-07-28
申请号：JP116097
申请日：1997-01-08
申请人： OSAKA GAS CO LTD
发明人： SHIMOKAWADOKO TAKAYUKI , YAMAZAKI TAKASHI , YAMAZAKI YOSHIHIRO
IPC分类号： C10L3/06 , C10L3/10
摘要： PROBLEM TO BE SOLVED: To obtain a town gas provided with a desired calorific value without using a gas raw material at the addition side to be used for adjusting a calorific value or with reducing the amount of the gas raw material even in the case of using the raw material gas, comprising a specific natural gas having a controlled calorific value. SOLUTION: The objective calorific value of a liquid-phase natural gas 1 is adjusted to a desired target calorific value by controlling the pressure and the temperature of a natural gas 3 in a vapor-liquid compatible phase state. The liquid-phase natural gas 1 is separated to give a natural gas having an adjusted calorific value. The obtained natural gas having the adjusted calorific value is used as a main raw material to give a town gas. Preferably, the liquefied natural gas 1 is mixed with a natural gas 2 to give the natural gas 3 in a vapor-liquid compatible phase state.

10. 发明专利

JPH09151707A CRYOGENIC POWER GENERATING DEVICE USING LIQUID NATURAL GAS 失效
公开(公告)号：JPH09151707A
公开(公告)日：1997-06-10
申请号：JP31265495
申请日：1995-11-30
申请人： OSAKA GAS CO LTD
发明人： HISAKADO YOSHINORI , YAMAZAKI YOSHIHIRO
IPC分类号： F01K23/10 , F01K25/10
摘要： PROBLEM TO BE SOLVED: To perform power generation by effectively utilizing hot/cold heat of liquefied natural gas. SOLUTION: In liquefied natural gas of low temperature, natural gas circulated is condensed in an LNG condenser 12, a mixed fluorocarbon refrigerant is condensed in a fluorocarbon condenser 14, circulating natural gas coming out from an LNG low pressure side expansion turbine 22 is cooled by an LNG heater 16. Natural gas vaporized in an LNG carburetor 18 is further heated by an LNG overheater 19, so as to drive an LNG high pressure side expansion turbine 20. Partly the natural gas coming out from the LNG high pressure side expansion turbine 20 is circulated. The residual, part is burned in a gas turbine 29. A steam turbine cycle evaporating water by utilizing exhaust heat of the gas turbine 29 is driven. Condensed heat of this cycle is heat exchanged as evaporation heat of a Rarnkine cycle with natural gas and mixed fluorocarbon serving as an operating medium, improvement of efficiency can be attained.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式