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1. 发明专利

JPS5920884B2 失效
公开(公告)号：JPS5920884B2
公开(公告)日：1984-05-16
申请号：JP3247981
申请日：1981-03-09
申请人： TOKYO GASU KK , CHIYODA CHEM ENG CONSTRUCT CO
发明人： AOKI NOBUO , SAKAI SHINJI , WADA MASANORI , YOSHIHARA ISAO , ABU OSAMU , SUZUKI NOBUAKI
IPC分类号： F16L55/00 , F15D1/02 , F16L55/02 , F16L55/027

2. 发明专利

JPH06137466A VIBRATION PREVENTING DEVICE FOR PIPING 失效
公开(公告)号：JPH06137466A
公开(公告)日：1994-05-17
申请号：JP30961392
申请日：1992-10-22
申请人： CHIYODA CHEM ENG CONSTRUCT CO
发明人： SUZUKI NOBUAKI , MATSUDA HIROYUKI , ASAMI TOSHIHIKO
IPC分类号： F16F15/02 , F16F15/04 , F16L3/205 , F16L3/21
摘要： PURPOSE:To realize optimum vibration prevention all the time irrespective of a change in temperature or a change of fluid with the lapse of hours by connecting an additional mass to a pipe via a spring and an air damper, and disposing in the air damper an orifice for restricting air from flowing into or from a variable capacity air chamber. CONSTITUTION:A frame 3 is fixed to a pipe 1 via a clamp 2. An additional mass 6 is suspended on the frame 3 through a tension coil spring 4. An air damper 5 is disposed coaxially with and inside the tension coil spring 4. In the air damper 5, a rubber bellows 9 is interposed between an upper and a lower supporter 7, 8 connected to the frame 3 and the additional mass 6, respectively. Intermediate rings 10 for reinforcing are fitted to required portions of the rubber bellows 9. An opening 11 is formed in the center of the lower supporter 8, and an orifice 12 disposed in the additional mass 6 via the opening 11 is communicated with the inner chamber of the rubber bellows 9. Consequently, vertical vibration of the pipe 1 can be prevented by utilizing the principle of a known dynamic damper.

3. 发明专利

JPH03188340A PRESSURE-FLUCTUATION DETECTION SENSOR FOR HIGH-PRESSURE PIPING 失效
公开(公告)号：JPH03188340A
公开(公告)日：1991-08-16
申请号：JP32720889
申请日：1989-12-19
申请人： CHIYODA CHEM ENG CONSTRUCT CO
发明人： SUZUKI NOBUAKI , NAKANO MASAAKI , NAITO TADAO , ABE MASAKAZU
IPC分类号： G01L11/00 , F17D5/00
摘要： PURPOSE:To detect a sound wave even in high pressure gas at high sensitivity by providing a constitution wherein the pressures of gas at the front and rear surfaces of a diaphragm are balanced, a pressure sensor is arranged at the diaphragm, and the signal corresponding to the deformation of the diaphragm is outputted. CONSTITUTION:A fitting plate 12 which is attached to a high pressure flange 1, a tubular member 2 which is provided at one surface of the plate 12 on the side of a branch pipe 81 in a protruding manner, a diaphragm 3 which is attached to the tubular member 2 and a pressure-fluctuation leading-out means are provided. One opening end of the tubular part 2 is closed with the plate 12, and the other opening end is covered with the diaphragm 3. Therefore, one chamber is formed. The pressures at the front surface and the rear surface of the diaphragm 3 are balanced with a through hole 21 in the side wall of the tubular member 2. When a sound wave hits the diaphragm 3, the diaphragms 3 is vibrated, and the pressure sensor arranged on the diaphragm 3 is driven. The pressure sensor outputs the deformation caused by the diaphragm 3 as the signal.

4. 发明专利

JPS6010238B2 失效
公开(公告)号：JPS6010238B2
公开(公告)日：1985-03-15
申请号：JP14091981
申请日：1981-09-09
申请人： CHIYODA CHEM ENG CONSTRUCT CO
发明人： YAMAMOTO SHIZUO , KANDA TETSUO , SUZUKI NOBUAKI , MATSUDA HIROYUKI
IPC分类号： F16L55/04

5. 发明专利

JPS59166794A Preventive device for pulsation of fluid in piping 失效
标题翻译：用于泵送流体的预防装置
公开(公告)号：JPS59166794A
公开(公告)日：1984-09-20
申请号：JP4026883
申请日：1983-03-11
申请人： Chiyoda Chem Eng Construct Co
发明人： YAMAMOTO SHIZUO , KANDA TETSUO , SUZUKI NOBUAKI , MATSUDA HIROYUKI
IPC分类号： F16L55/04

6. 发明专利

JPS57146904A NOISE PREVENTIVE DEVICE IN PRESSURE REDUCTION THROTTLING MECHANISM 失效
公开(公告)号：JPS57146904A
公开(公告)日：1982-09-10
申请号：JP3247981
申请日：1981-03-09
申请人： TOKYO GAS CO LTD , CHIYODA CHEM ENG CONSTRUCT CO
发明人： AOKI NOBUO , SAKAI SHINJI , WADA MASANORI , YOSHIHARA ISAO , ABU OSAMU , SUZUKI NOBUAKI
IPC分类号： F16L55/00 , F15D1/02 , F16L55/02 , F16L55/027
摘要： PURPOSE:To prevent occurrence of a shock, vibration, noise, etc. when fluid is reduced its pressure in a liquefied natutal gas (LNG) transfer piping, by arranging metallic wire nets in the downstream of a pressure reduction throttling mechanism. CONSTITUTION:Metallic wire nets 1 are transversely arranged fully in the internal section of a pipe 3 neighboring to the downstream side of an orifice 4. Quantity of overlapped sheets of said metallic wire nets 1 is selected from throttling ratio of the orifice, pressure of fluid, etc. As a result, such a pressure restoring part is not generated as in case of using a single orifice, then no cavitation is caused. Further section of a metal 2, constituting the net, is placed at a certain angle with respect to the flow direction of fluid, then larger resistance for the fluid is generated than with a welded metal net of wire in circular section, while a turbulent flow is easily caused.

7. 发明专利

JPS56161824A FINE GAS BUBBLE GENERATING APPARATUS UTILIZING RESONANCE 失效
公开(公告)号：JPS56161824A
公开(公告)日：1981-12-12
申请号：JP6400480
申请日：1980-05-16
申请人： CHIYODA CHEM ENG CONSTRUCT CO
发明人： KANDA TETSUO , SUZUKI NOBUAKI
IPC分类号： B01F3/04 , B01F11/02 , B01F13/02 , C02F1/24 , C02F3/20 , F02D41/18
摘要： PURPOSE:To generate fine gas bubbles in low energy consumption by blowing a gas into a reaction tube in such a condition that a liquid in said tube is subjected to resonance. CONSTITUTION:A liquid is filled in a resonance pipe 1 and a reaction tube 9 and vibration is imparted to said liquid by a vibration generator 3. The vibration is small but pressure wave of the vibration is advanced through the resonance pipe 1 and reflected by a reflector plate 2 to synthesize an advancing wave and a reflecting wave. A vibration number of the vibration due to the vibration generator 3 and a length of the resonance pipe 1 are selected to a predetermined value and the pressure wave generates the resonance to be converted to a standing wave and the pressure vibration is remarkably increased in a closed end of the resonance pipe 1. If a gas is blown into an loop 1 part of the pressure, that is, the reaction tube 9, gas bubbles are formed under pressure by a dispersing means or a gas bubble generating means 4. When a pressure of a gas in rough gas bubbles is increased, it is dissolved in the liquid and, when lowered, separated from the liquid and fine gas bubbles are formed under pressure. The liquid containing a large amount of fine gas bubbles is discharged from a discharge port 6 and used for floatation and separation.

8. 发明专利

JPH0217760B2 失效
公开(公告)号：JPH0217760B2
公开(公告)日：1990-04-23
申请号：JP4026883
申请日：1983-03-11
申请人： CHIYODA CHEM ENG CONSTRUCT CO
发明人： YAMAMOTO SHIZUO , KANDA TETSUO , SUZUKI NOBUAKI , MATSUDA HIROYUKI
IPC分类号： F16L55/04

9. 发明专利

JPS6285200A HYDRAULIC RAM 失效
公开(公告)号：JPS6285200A
公开(公告)日：1987-04-18
申请号：JP13423985
申请日：1985-06-21
申请人： CHIYODA CHEM ENG CONSTRUCT CO
发明人： YAMAMOTO SHIZUO , SUZUKI NOBUAKI , KANDA TETSUO
IPC分类号： F04F7/02
摘要： PURPOSE:To prevent damage to a valve shaft and a bearing by making a resilient body to support the valve body of the drain valve of a hydraulic ram via the valve shaft and vertically reciprocating the valve body by the effect of variation in the pressure inside a water chamber. CONSTITUTION:Inside a valve chamber 2, a valve seat 14 which has a drain port 14a therein is arranged and a valve body displacement regulator 15 and a resilient body are disposed above the valve seat 14. A valve shaft 18 passes through both the drain port 14a of the valve seat 14 and the valve displacement regulator 15 and is supported at the upper end by the resilient body 13. The valve body 12 is moved up and down freely according to variation in the direction and pressure of flowing water to open and close a drain valve. Because no bearing is required as required in the conventional case, the valve shaft and a bearing can not be subjected to any damage.

10. 发明专利

JPS61265400A HYDRAULIC RAM 失效
公开(公告)号：JPS61265400A
公开(公告)日：1986-11-25
申请号：JP10598685
申请日：1985-05-20
申请人： CHIYODA CHEM ENG CONSTRUCT CO
发明人： YAMAMOTO SHIZUO , KANDA TETSUO , SUZUKI NOBUAKI
IPC分类号： F04F7/02
摘要： PURPOSE:To prevent the defect, abrasion and breakage of each member by using, as water pumping-up valve, an elastic member whose one edge is fixed onto the valve seat part of a valve body. CONSTITUTION:When the pressure in a valve chamber 9 increases, the water stream passes through a water pumping-up hole 11' as shown by W, and pushes up a valve body 14. Though said valve body 14 is fixed at one edge by a fixing member 14a, the valve body 14 is deformed, since it is made of elastic material, and the valve body 14 is pushed upwardly, having one fixed edge as fulcrum, and a water pumping-up valve is opened. When the pressure in the valve chamber 2 lowers, the valve body 14 is lowered by he elastic force of the valve body 14, and the water pumping-up hole 11' is closed, and the water pumping-up valve is closed. With such constitution, the valve is freely opened and closed according to the variation of the water stream, and the breakage or abrasion of a bearing and valve shaft in the conventional can be avoided.

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