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1. 发明专利

JPS5377340A HEATING METHOD FOR EXHAUST GAS INVOLVING NONNBURNING GAS AND REMAINING OXYG EN 失效
公开(公告)号：JPS5377340A
公开(公告)日：1978-07-08
申请号：JP15463776
申请日：1976-12-21
申请人： HITACHI SHIPBUILDING ENG CO , KAWASAKI STEEL CO
发明人： KUMAGAI TATSUO , OOSONO HIDEAKI , SHIBATA HIDEKI , UEDA TAKAYOSHI , KOYAMA TOSHIJI , HIROOKA NOBORU , KADOI KUNIO , TAKEHARA ASEI , SHINOZUKA ARUYA
IPC分类号： F23J15/00 , F23G7/06
摘要： PURPOSE:To reduce a fuel cost and miniaturize equipment for the following process by introducing a part of burning gas to utilize hydrocarbon, other non-burning gas and remaining oxygen among exhaust gas for the purpose of burning.

2. 发明专利

JPH039367B2 失效
公开(公告)号：JPH039367B2
公开(公告)日：1991-02-08
申请号：JP9828683
申请日：1983-06-01
申请人： HITACHI SHIPBUILDING ENG CO
发明人： ITO TAKUSEN , KOYAMA TOSHIJI
IPC分类号： F23N5/24 , F23G7/08 , F23K5/00

3. 发明专利

JPS5576297A SELFFCOOLING METHOD OF LIQUEFIED GAS 失效
公开(公告)号：JPS5576297A
公开(公告)日：1980-06-09
申请号：JP14952478
申请日：1978-11-30
申请人： HITACHI SHIPBUILDING ENG CO , BRIDGESTONE LIQUEFIED GAS CO
发明人： HAYASAKA YOUJI , SEKIGUCHI YOSHITOSHI , KOYAMA TOSHIJI
IPC分类号： F17C9/00 , F17C13/00 , F23C99/00 , F23K5/00
摘要： PURPOSE:To eliminate the problem of evaporation of a part of a liquefied gas passing through a duct for the proper amount of gas injected under accurate and wide- range control by use of a liquid cooler to evaporate and cool the gas. CONSTITUTION:After a thermo-self expansion valve 19 determines the condition where vapour is produced, the valve 19 opens as wide as required when liquid is cooled in need. Some of liquefied gas 1 flowing through the duct 4 as little as required is guided into an evaporating part 9 or at its entrance. An evaporation heat generated cools off the liquefied gas 1 up to a specified temperature. When the expansion valve 19 is opened, the downstream of the valve 19 at a low pressure below 0.2kg/cm G takes heat away from the liquefied gas 1 to evaporate. There is no problem of evaporation of the liquefied gas in the duct for the proper amount of gas injected under the accurate and wide-range control.

4. 发明专利

JPS5787529A REMOVAL OF RESIDUAL FUEL IN COMBUSTION APPARATUS OF LIQUEFIED PETROLEUM GAS 失效
公开(公告)号：JPS5787529A
公开(公告)日：1982-06-01
申请号：JP16312180
申请日：1980-11-18
申请人： BRIDGESTONE LIQUEFIED GAS CO , HITACHI SHIPBUILDING ENG CO
发明人： FUJIOKA TAKEO , YOSHIMITSU TAKESHI , KANABE TAMIAKI , SEKIGUCHI YOSHITOSHI , HAYASAKA YOUJI , KOYAMA TOSHIJI
IPC分类号： F23K5/00 , F23N5/24
摘要： PURPOSE:To prevent fuel from entering a combustion furnace in times of extinction or accidental fire of a burner by a method wherein liquefied petroleum gas in a pipe in front of the burner is conducted to an ejector attached to the burner and absorbed after extinction or misfire of a burner. CONSTITUTION:The instant that extinction or misfire of the burner 3 is detected, cut-off valves 4,5 are closed and simultaneously solenoid valves 14,15 open. Nitrogen gas or the like is supplied to the ejector 10, thereby the fuel which flows in from a pipe 1 between the burner 3 and the front cut-off valve 4 and the pipe 1 between the front and the rear cut-off valve 4,5 to branch pipes 7,8 is absorbed into the ejector 10, sent instantly to a bent stack or a flare stack and burnt.

5. 发明专利

JPH06240917A VEHICULAR BOTTOM DETECTING DEVICE IN MULTISTORY PARKING GARAGE 失效
公开(公告)号：JPH06240917A
公开(公告)日：1994-08-30
申请号：JP3233293
申请日：1993-02-23
申请人： HITACHI SHIPBUILDING ENG CO
发明人： YOSHIDA ISAO , KOYAMA TOSHIJI , SASAKI KATSUHIKO
IPC分类号： E04H6/42
摘要： PURPOSE:To easily detect that a vehicle whose lowest part has a height lower than the height of the projected part of a conveying vessel on which the vehicle is to be housed is going to enter the vessel by setting the height of a cylindrical body so as to be slightly higher than the height of the projected part of the floor of the conveying vessel, and therefore to prevent such an accident that the bottom of the vehicle body is damaged. CONSTITUTION:A cylindrical body 14 that is freely abutted on the bottom part of a vehicle is fitted to the horizontal shaft part 13b on the one side of an oscillating frame body 13 that has been supported by a pair of supporting brackets 11A, 11B so as to free oscillate in an a vertical plane. Balance weights 15A, 15B for maintaining the cylindrical body 14 in a prescribed position are fitted to the horizontal shaft part on the other side, and also a proximity switch for detecting the oscillation of the oscillating frame body 13 is provided.

6. 发明专利

JPH06240916A VEHICULAR BOTTOM DETECTING DEVICE IN MULTISTORY PARKING GARAGE 失效
公开(公告)号：JPH06240916A
公开(公告)日：1994-08-30
申请号：JP3233193
申请日：1993-02-23
申请人： HITACHI SHIPBUILDING ENG CO
发明人： KOYAMA TOSHIJI , WAKATSUKI HARUO , SASAKI KATSUHIKO
IPC分类号： E04H6/42
摘要： PURPOSE:To easily detect that a vehicle whose lowest part has a height lower than the height of the projected part of a conveying vessel on which the vehicle is to be housed is going to enter the vessel by setting the height of a band body so as to be slightly higher than the height of the projected part of the floor of the conveying vessel, and therefore to prevent such an accident that the bottom part of the vehicle body is damaged. CONSTITUTION:A pair of right and left spring bodies 12A and 12B are erectedly installed on the floor surface 1a of the entrance and exit of a garage and on the inside of the right and left wheels A of a vehicle. A vehicular bottom detecting device is provided with a band body 15 whose one end is connected to the upper end of the spring body 12A on one side and whose other end is connected through the upper end of the spring body 12B on the other side to a detecting switch 13 that has been provided at a specific place.

7. 发明专利

JPS63247526A RECOVERY SYSTEM FOR FLARE GAS 失效
公开(公告)号：JPS63247526A
公开(公告)日：1988-10-14
申请号：JP8001987
申请日：1987-04-01
申请人： ASIA OIL CO LTD , HITACHI SHIPBUILDING ENG CO
发明人： KAIMOTO TETSUMA , ITO TAKUSEN , KOYAMA TOSHIJI
IPC分类号： F23G7/08
摘要： PURPOSE:To surely prevent the back flow and back fire of waste gas by a method wherein the waste gas from a flare gas supply pipe is introduced into a secondary water-sealed drum and recovered waste gas from the discharge side of a gas recovery compressor is controlled by a gas pressure control valve and then returned to the storage space for recovered gas of the secondary water-sealed drum. CONSTITUTION:Waste gas introduced from a plant 1 by a flare gas supply pipe 3 is introduced into a secondary water-sealed drum 5 of which water sealed depth is set to be shallower than that of a primary water sealed drum 2 and sucked by a gas recovery compressor 7 and compressed and then supplied to a burner 14. When the waste gas pressure in the drum and a primary recovered gas pipe 8A is reduced in operation, a gas flow control valve 11 on a secondary recovered gas pipe 8B is closed and also a gas pressure control valve 17 on a returned gas pipe 18 is opened to return the waste gas into the drum 5 and the suction side pressure of the compressor 7 is held constant. Even if the valves 11 and 17 can not be controlled, a back fire can surely be prevented by the drum 5 and the damage to the plant 1 can be avoided.

8. 发明专利

JPS5784909A COMBUSTION OF LIQUEFIED PETROLEUM GAS 失效
公开(公告)号：JPS5784909A
公开(公告)日：1982-05-27
申请号：JP16311880
申请日：1980-11-18
申请人： BRIDGESTONE LIQUEFIED GAS CO , HITACHI SHIPBUILDING ENG CO
发明人： FUJIOKA TAKEO , YOSHIMITSU TAKESHI , KANABE TAMIROU , SEKIGUCHI YOSHITOSHI , HAYASAKA YOUJI , KOYAMA TOSHIJI
IPC分类号： F23D11/22 , F23D11/10
摘要： PURPOSE:To prevent freezing in and around the outlet of nozzles of a combustor by using a moistless gas, e.g., gas from liquefied petroleum gas, etc., as a medium to be used when atomizing the liquefied petroleum gas. CONSTITUTION:Liquefied petroleum gas is supplied from the bottom of a liquefied petroleum gas storage tank 1 by means of a pump 2 into a nozzle 5 inside a burner 4 through a pipeline 3, and gas from the liquefied petroleum gas in the tank 1 is supplied through the upper end of the tank 1 into the nozzle 5 by a pipeline 6, whereby the liquefied petroleum gas is atomized and burned at the nozzle 5. Thus, by using gas from vaporization of the liquefied petroleum gas as a medium for atomizing the liquefied petroleum gas, freezing in and around the nozzle can exactly prevented.

9. 发明专利

JPS55146310A DANGERRPREVENTING METHOD FOR LIQUEFIED GAS BURNER 失效
公开(公告)号：JPS55146310A
公开(公告)日：1980-11-14
申请号：JP5454879
申请日：1979-05-02
申请人： HITACHI SHIPBUILDING ENG CO , BRIDGESTONE LIQUEFIED GAS CO
发明人： SEKIGUCHI YOSHITOSHI , OKIGAMI NOBORU , HAYASAKA YOUJI , KOYAMA TOSHIJI , FUJIOKA TAKEO , YOSHIMITSU TAKESHI
IPC分类号： F23D11/38 , F23K5/00 , F23K5/18
摘要： PURPOSE:To prevent the liquefied gas in a line from being flown into a combustion chamber, by a method wherein the liquefied gas remaining in the line running from a turning-off valve to a burner is exhausted through a purging line to the outside during the flow stoppage that is required at the time when liquefied gas in a liquid state is burned. CONSTITUTION:A residual liquid purging line 4 is connected to a lower portion of a piping 3 between an emergency turning-off valve 1 and a burner 2, the said line 4 being connected to a flare stack through the medium of a residual liquid purging electromagnetic valve 5 and a liquid pot 6. An opening area ratio of the burner 2 to the purging line 4 is set to be, say, about 1/20. The valve 5 simultaneously opens when the valve 1 closes. Since a resistance at a burner 2 side is far larger than that at a piping 4 side due to the opening area ratio thereupon, almost no liquefied gas flows to the burner 2 side, but it flows to the piping 4 for a short time. This permits the prevention of flow of unburning liquefied gas in a piping 3 into a combustion chamber following closure of the valve 1.

10. 发明专利

JPS5543324A LIQUEFIED GAS BURNING METHOD 失效
公开(公告)号：JPS5543324A
公开(公告)日：1980-03-27
申请号：JP11611078
申请日：1978-09-20
申请人： HITACHI SHIPBUILDING ENG CO , BRIDGESTONE LIQUEFIED GAS CO
发明人： SEKIGUCHI YOSHITOSHI , HAYASAKA YOUJI , KOYAMA TOSHIJI
IPC分类号： F23D11/24 , F17C9/00 , F23C99/00 , F23D11/02 , F23K5/00
摘要： PURPOSE:To reduce installation and operation costs and to improve safety, by locating a liquid cooling device at a gas conduit passage. CONSTITUTION:A liquid cooler 6 equipped with a coolant evaporator is located between a pump 4, placed on a conduit passage 3 feeding liquefied gas from a tank 1 to a burner 2, and a burner 5 seperated from a cooled liquid passage through the medium of a partition. A part of liquefied gas in the conduit passage 3 is fed to an evaporating part through a branch pipe 7 diverged from the conduit passage 3, and is evaporated at the inside of the evaporating part or at an inlet port of the evaporating part. The heat of evaporation generated cools the liquefied gas in the conduit passage 3 to reduce a temperature of the liquid down to a given temperature. Afterwards, the fluid, whose dicharge or pressure is regulated by a control valve 5, is sprayed from a nozzle of the burner 2, and gas, which is generated as a result of being gasified due to the pressure reduced by the liquid cooler 6, is fed to a pilot burner 8 wherein sprayed gas is burned. This permits liquefied gas flowing through the conduit passage 3 to be fully cooled in the summer season, and to be free from evaporating at the inside of the conduit passage 3. Furthermore, this allows the control valve 5 to be minimized, and allows the danger of gas leakage to be reduced.

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