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1. 发明专利

JP2002365104A ULTRASONIC TYPE VORTEX FLOWMETER 失效
公开(公告)号：JP2002365104A
公开(公告)日：2002-12-18
申请号：JP2001177541
申请日：2001-06-12
申请人： OSAKA GAS CO LTD , TOKICO LTD
发明人： OKAMOTO KUNIYOSHI , OHASHI YOJI , TASHIRO KOICHI , YOSHIKURA HIROSHI
IPC分类号： G01F1/32
摘要： PROBLEM TO BE SOLVED: To prevent delay of detection of change in pressure accompanied with occurrence of Karman vortexes by difference in length of a guiding paths. SOLUTION: In this ultrasonic type vortex flowmeter 70, a pair of passages 18A, 20A for propagation of ultrasonic waves, which penetrate in the extending direction of a body 16A for generating the vortexes, are arranged in side by side in the flowing direction (upstream and downstream sides) of fluid to be measured. In one ends of the passages 18A, 20A for the propagation of the ultrasonic waves, ultrasonic sensors for transmitting are opposed. In the other ends of the passages 18A, 20A for the propagation of the ultrasonic waves, ultrasonic sensors for receiving are opposed. Since total length of inlet and outlet holes 22A, 24A, 26A, 28A for the fluid are the same, timing of inflow when the fluid to be measured flows in from the inlet and outlet holes 22A, 26A for the fluid to the passages 18A, 20A for the propagation of the ultrasonic waves are the same as the timing of the inflow when the fluid to be measured flows in from the inlet and outlet holes 24A, 28A for the fluid to the passages 18A, 20A for the propagation of the ultrasonic waves. It is, therefore, possible to prevent increase in instrumental errors by the delay of the detection of the Karman vortexes 17.

2. 发明专利

JPH04181100A COOLING STANDBY HOLDING METHOD FOR SHELL-AND-TUBE TYPE LIQUEFIED GAS VAPORIZER USING INTERMEDIATE HEAT MEDIUM 失效
公开(公告)号：JPH04181100A
公开(公告)日：1992-06-29
申请号：JP30999590
申请日：1990-11-14
申请人： OSAKA GAS CO LTD
发明人： OKAMOTO KUNIYOSHI , YAMAMOTO SHUJI
IPC分类号： F17C9/02
摘要： PURPOSE:To perform stable temperature control by changing either one or both of the flow of the heat source fluid of a vaporizer and a gasification liquid, keeping the pressure or temperature of an intermediate heat medium constant, and holding the cooled state of the portion required to be kept cooled. CONSTITUTION:A pressure detection section 12 for detecting the pressure of an intermediate heat medium on a vaporizer 1 is provided on it, the opening of an auxiliary control valve 8a is regulated by a command from the detection section 12, and the flow of a gasification liquid is controlled so that the pressure of the intermediate heat medium is kept constant. The intermediate heat medium quickly responds to the balance between the heating by a heat source fluid and the cooling by the gasification liquid, thus resulting in the pressure change, i.e., temperature change, when it is used for the control subject, the control delay can be shortened from 10min to about 0.5min, for example. The pressure of the intermediate heat medium may be kept constant by the flow control of both the gasification liquid and the heat source fluid.

3. 发明专利

JPH01297703A SUPPLY CONTROLLER FOR NATURAL GAS SUPPLYING SYSTEM 失效
公开(公告)号：JPH01297703A
公开(公告)日：1989-11-30
申请号：JP12903888
申请日：1988-05-26
申请人： OSAKA GAS CO LTD
发明人： FUKUDA KAZUHIRO , OKAMOTO KUNIYOSHI , FUKUI EIICHIRO
IPC分类号： G05B17/02
摘要： PURPOSE:To establish a stable supplying system by controlling supply pressure by predicting the demand of a natural gas at every 10-30sec. CONSTITUTION:A gas supply prediction control part 10 in this invention is constituted of a prediction model 11 and an evaluation part 12. The prediction model 11 is a model to predict the future state (y) of the system based on a manipulated valuable u1 which represents the state of the system, measurable disturbance u2, and appropriately presumed unmeasurable disturbance (d) by using a step response coefficient. Also, as a transfer function, the one in which the transfer functions of an LNG caburettor 4 and LNG flow control valves V11 and V12 are approximated with first-order lag is used. In such a way, a prediction model can be realized in practical use even in a computing element with the standard of a microcomputer.

4. 发明专利

JP2002031552A ULTRASONIC VORTEX FLOWMETER 失效
公开(公告)号：JP2002031552A
公开(公告)日：2002-01-31
申请号：JP2000216428
申请日：2000-07-17
申请人： OSAKA GAS CO LTD , TOKICO LTD
发明人： OKAMOTO KUNIYOSHI , OHASHI YOJI , YOSHIKURA HIROSHI , TASHIRO KOICHI , TANABE MINORU , INADA YUTAKA
IPC分类号： G01F1/32
摘要： PROBLEM TO BE SOLVED: To surely fix a sound absorbing member absorbing reflected wave in an ultrasonic wave propagation path. SOLUTION: An ultrasonic vortex flowmeter 10 is provided with a flowmeter main body 14 having a flow passage 12 allowing flow of fluid to be measured and a vortex generator 16 arranged inside the flow passage 12 in the flowmeter main body 14. In the upper and lower ends of the vortex generator 16, holding members 38 and 40 holding transmitting ultrasonic sensors 30 and 32 and receiving ultrasonic sensors 30 and 36 are arranged. A cylindrically formed sound absorbing member 43 and a ring-shaped clamping member 44 clamping both ends of the sound absorbing member 43 are installed in both ends of passages 18 and 20. The sound absorbing member 43 is housed in a recess part 45 and inserted into the passages 18 and 20 so as not to protrude, and both of upper and lower ends of the sound absorbing member 43 are clamped by means of the clamping member 44, so that the sound absorbing member is prevented from coming off while a temperature limitation of high-temperature liquid can be removed.

5. 发明专利

JPS62120517A PRESSURE CONTROL METHOD USING GOVERNER 失效
公开(公告)号：JPS62120517A
公开(公告)日：1987-06-01
申请号：JP26212085
申请日：1985-11-20
申请人： OSAKA GAS CO LTD
发明人： OKAMOTO KUNIYOSHI , NISHITANI YOSHITAKA
IPC分类号： G05D16/00 , G05D16/20
摘要： PURPOSE:To secure the supply of the gas of prescribed level of pressure with a desired flow rate by changing the secondary pressure of a governer in response to the standard using amount of gas that is previously stored in a time setting circuit and performing the control of pressure. CONSTITUTION:A variation pattern selecting circuit 12 selects the number of a variation pattern of the data table of a RAM 11 according to the month, the day and the time of a timing setting circuit 13. This selected number is stored in a variation pattern memory 14 and checked by a reading circuit 15 against the present time point of the circuit 13. The secondary set value of a governer G1 of this time is calculated 16 based on the storage contents against the variation pattern number read by the circuit 15. Then the result of the arithmetic 16 is given to a comparator 17. The comparator 17 compares said calculated value with the feedback signal value showing he target value of the G1 given from a circuit counter 18 and delivers signals from an output interface 26 for control of the pressure of the G1.

6. 发明专利

JPS60165461A DETECTION OF HOT-WATER LEVEL IN BATHTUB 失效
公开(公告)号：JPS60165461A
公开(公告)日：1985-08-28
申请号：JP2261284
申请日：1984-02-08
申请人： OSAKA GAS CO LTD
发明人： YAMADA TATSUJI , OKAMOTO KUNIYOSHI
IPC分类号： F24H1/00
摘要： PURPOSE:To permit to detect the level of hot-water accurately and highly reliably by a method wherein a plurality of thermistors are conducted so as to maintain a reference temperature, higher than the temperature of hot-water in a bathtub under a condition that they are not submerged into the hot-water of the bath, at all times. CONSTITUTION:A horizontal communicating pipe 15 is taken out of the bottom section of the bathtub 7 and a side tube 17 is established from the tip end thereof upwardly. The thermistors S1, S2, S3 for detecting hot-water level, provided in the side tube 17 with proper intervals, are for detecting the levels of high-temperature hot-water, a middle temperature hot-water and low- temperature hot-water sequentially from the upper thermistor. A remaining hot-water detecting thermistor S0 is provided at the lower end of the side tube 17 and all of the thermistors are conducted at all times so that they maintain the reference temperature (50 deg.C-60 deg.C, for example), which are higher than the temperature of the hot-water of the bath, under the condition that they are not submerged into the hot-water of the bath. When respective thermistors are submerged in the hot-water of the bath of about 40 deg.C, they detect temperatures lower than the temperature under non-sumberged conditions of them and detect that the level of the hot-water of bath has arrived at the positions of respective thermistors S1, S2, S3, S0. Accordingly, the highly reliable hot-water level detection may be effected.

7. 发明专利

JP2001076268A ABNORMALITY DETECTOR 失效
公开(公告)号：JP2001076268A
公开(公告)日：2001-03-23
申请号：JP25218499
申请日：1999-09-06
申请人： OSAKA GAS CO LTD , MITSUBISHI HEAVY IND LTD
发明人： SHINOHARA KYUJI , YADA KIYOSHI , FUJIMARU NAOYA , OKAMOTO KUNIYOSHI , TSUKANO MASAZUMI , MORI TAKASHI
IPC分类号： H04N7/18 , G08B21/16 , G08B23/00 , G08B25/00
摘要： PROBLEM TO BE SOLVED: To make an abnormality detector efficiently and correctly detectable the occurrence of an abnormality by providing a display/abnormality detection switching means which gives an image signal from one or plural image pickup means among plural image pickup means to a display means and gives an image signal from the residual image pickup means to processing means. SOLUTION: An image signal from one or plural television cameras C1 among plural (j) visible region light television cameras (television camera, hereafter) C is given to monitor 7 via a switching means DR1 in order to switch display/ abnormality detection. An operator can observe an image at a place to be monitored, which is picked up by the television camera C1. Then, the image signal from the residual one or plural television cameras C2 to Cj is selectively given to a processing means 5 from the signal processing circuit 4 of a central control room 3 for display and abnormality detection by switching means DR2 to DRj. The means DR2 to DRj selects on image signal among the television cameral C2 to Cj to transmits it from a television controller 2 to the circuit 4.

8. 发明专利

JPH0544900A MICROPRESSURE COOLING MAINTAINING METHOD FOR LOW-TEMPERATURE LIQUID TRANSPORT PIPE 失效
公开(公告)号：JPH0544900A
公开(公告)日：1993-02-23
申请号：JP20289691
申请日：1991-08-13
申请人： OSAKA GAS CO LTD , ISHIKAWAJIMA HARIMA HEAVY IND
发明人： OKAMOTO KUNIYOSHI , FUCHIMOTO YOICHI , OGI HIROMASA
IPC分类号： F17D1/08 , F17D1/20
摘要： PURPOSE:To enable use of a micropressure cooling maintaining method without generating abnormal vibration in a pipe for a low-temperature liquid transport pipe which is long in distance and large in difference of elevation. CONSTITUTION:A rising pipe part 10 of a low-temperature liquid transport pipe 1 which connects the low-temperature liquid transport pipe 1 to a horizontal pipe part 11 is bent in the stepped state, and an opening/closing valve 12 is provided at a horizontal part of each step and a plurality of horizontal pipe parts 11 are formed independently from the horizontal pipe part 11. When the low-temperature liquid transport pipe is not used, the opening/closing valve 12 is closed, a low-temperature liquid is supplied from another system to each of the horizontal pipe part 11 and a steam gas is discharged from each of the horizontal pipe parts 11.

9. 发明专利

JPS60232449A CONTROLLING METHOD OF BLOW-OFF AIR QUANTITY OF AIR CONDITIONING APPARATUS 失效
公开(公告)号：JPS60232449A
公开(公告)日：1985-11-19
申请号：JP8868684
申请日：1984-05-01
申请人： OSAKA GAS CO LTD
发明人： SUGIMOTO ICHIROU , KEGASA AKISHI , YAMADA TATSUJI , HIGUCHI YOUICHI , OKAMOTO KUNIYOSHI
IPC分类号： F24F11/76
摘要： PURPOSE:To eliminate to the utmost unevenness in feeling to be heated, which is generated through a temperature change of a heating medium fluid, by adjusting automatically a blown-out air quantity of a fan based on a detected temperature of the heating medium fluid. CONSTITUTION:A main valve MV is controlled basically in an opening and closing state by an automatic controller based on comparison between an established controlling target temperature thetas of a heating medium fluid and the temperature thetaa of the fluid detected at an outlet by a thermometer THa for detecting the temperature of the heating medium fluid at the outlet so that the temperature thetaa of the heating medium fluid at the outlet is kept close to the controlling target temperature thetas through PID control. The controlling target temperature thetas is set automatically so that next action lasting time becomes close to appropriate time T0 being fixed beforehand according to the action lasting time T of a standard air conditioning apparatus 3i, and a blow-off air quantity of a fan 13, that is, the number of revolutions is set automatically by making use of the temperature thetab of a feed heating medium fluid to each air-conditioning heat exchanger 12.

10. 发明专利

JPS60152819A BURNING APPARATUS WITH SAFETY MECHANISM 失效
公开(公告)号：JPS60152819A
公开(公告)日：1985-08-12
申请号：JP818984
申请日：1984-01-18
申请人： OSAKA GAS CO LTD , TADA KK
发明人： OKAMOTO KUNIYOSHI , YAMADA TATSUJI , MINAMINO KEIICHI , OOSAKO KOUICHI , OOTA HARUYASU , KIKUNO KEIJI
IPC分类号： F23N5/24 , F23N5/20
摘要： PURPOSE:To contrive to enable the automatic re-ignition only when the unexpected extinguishment is confirmed merely as a temporary occasion by a method wherein the re-ignition is made automatically only when the definite conditions is satisfied after safety control operation. CONSTITUTION:A burner 1 is ignited and starting operation thereof is performed by a timer for checking a burning continuous time. In case that an extinguishment switch button 6 is not made ON operation, when the burner 1 is extinguished by the automatic closing of a safety shut-off valve Vs caused by some reason, a time T from igniting to extinguishment is measured by the timer, then the time T is judged by comparing with the preset time T0. In case of T>=T0, the extinguishment is judged to be caused by a temporary reason, then the timer is reset and re-ignited. In case of T

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