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31. 发明专利

JPH02146403A BURNING APPARATUS 失效
公开(公告)号：JPH02146403A
公开(公告)日：1990-06-05
申请号：JP30141288
申请日：1988-11-28
申请人： NORITZ CORP
发明人： MATSUDA TAKAHIRO
IPC分类号： F23D11/24 , F23C99/00
摘要： PURPOSE:To reduce the NOx by disposing a plurality of air ejecting holes in the periphery of opposed air ejection nozzles to oppose to each other. CONSTITUTION:For the burning operation, a fan 10 is first started and an ignition electrode rod is caused to spark. A compressor 11 is then started and a solenoid valve 12 opened, whereupon an internal pressure is applied to a constant oil level valve 7 to cause the fuel to be ejected through a fuel fed pipe 6 and the air through an air feed pipe 8. The fuel and air are mixed and ejected out of air ejection nozzles 3, which is ignited by the spark. By disposing the air ejection nozzles to oppose each other, the burning is sustained while the ejected jets collide and mix so as to form a flat flame in the center of the burning chamber 1. Furthermore, by disposing a plurality of air ejection holes in the periphery of the air ejection nozzles to oppose each other, the burnt gas and the unburnt gas are mixed while the fresh air is supplied to the flame surface to cool the flame so as to activate the burning while the NOx is reduced at the same time.

32. 发明专利

JPH11101413A THICK AND THIN FUEL COMBUSTION GAS BURNER 失效
公开(公告)号：JPH11101413A
公开(公告)日：1999-04-13
申请号：JP28310497
申请日：1997-09-29
申请人： NORITZ CORP
发明人： HATA SHUSUKE , UEDA HIDEO , WAKATA TAKESHI , KAMEYAMA SHUJI , NAGAI ITSUO , MATSUDA TAKAHIRO , KOTSUNA RYOJI
IPC分类号： F23D14/08 , F23C99/00 , F23D14/64 , F23C11/00
摘要： PROBLEM TO BE SOLVED: To provide a thick and thin fuel combustion gas burner from which little vertical fluctuation of a gas flow and combustion with a stable flame can be expected even if the gas pressure of fuel gas jetted from a gas nozzle varies to some extent. SOLUTION: A thick and thin fuel combustion gas burner is equipped, in its constitution, with a main structural body 1 which constitutes a main burner port and a main path and also a gas-air receiving port 1a receiving fuel gas from a gas nozzle 4 and air from the circumference thereof, a subordinate structural body which constitutes a subordinate burner port and a subordinate path outside the main structural body 1 in opposition to each other and a gas branching mechanism 3 for leading part of the fuel gas introduced into the gas-air receiving port 1a to the subordinate path as thick gas not yet being mixed with the air so much. In this case, the end face 3b of the gas branching mechanism 3 on the side facing the gas nozzle 4 is formed to be a rise face almost perpendicular to the central axis F of the gas nozzle 4.

33. 发明专利

JPH1163432A THICK AND THIN COMBUSTION BURNER 失效
公开(公告)号：JPH1163432A
公开(公告)日：1999-03-05
申请号：JP24615897
申请日：1997-08-26
申请人： NORITZ CORP
发明人： MATSUDA TAKAHIRO , KOTSUNA RYOJI , NAGAI ITSUO , HATA SHUSUKE , KAMEYAMA SHUJI , WAKATA TAKESHI
IPC分类号： F23D14/08 , F23C99/00 , F23D14/70 , F23C11/00
摘要： PROBLEM TO BE SOLVED: To provide a thick and thin combustion burner which speedily dissipates heat which burner ports receive thus ensuring a large ratio between the maximum gas inlet and the minimum gas inlet (T.D.R) by integrally forming burner ports on a unit per se which constitutes the burner. SOLUTION: A thick and thin combustion burner comprises a main flame premixing unit 2 which has a large number of main burner ports 2a in a longitudinal direction and is made of a pair of plate member 20, 20 which are assembled such that they face each other to define a main passage 2b which reaches the burner ports 2a, and a pilot flame premixing unit 3 which has a large number of sub burner ports 3a in a longitudinal direction and is made of a pair of plate members 30, 30 which are assembled such that they face each other to define sub passages 3b which reach the sub burner ports 3a. The main burner ports 2a and the sub burner ports 3a are integrally formed on folded portions 21, 31 which are formed by folding the distal ends of the plate members 20, 30 which constitutes the main flame premixing unit 2 and the pilot flame premixing unit 3.

34. 发明专利

JPH1151327A THICK AND THIN TYPE GAS BURNER 失效
公开(公告)号：JPH1151327A
公开(公告)日：1999-02-26
申请号：JP21813097
申请日：1997-07-28
申请人： NORITZ CORP
发明人： HATA SHUSUKE , UEDA HIDEO , WAKATA TAKESHI , KAMEYAMA SHUJI , NAGAI ITSUO , MATSUDA TAKAHIRO , KOTSUNA RYOJI
IPC分类号： F23D14/08 , F23C99/00 , F23D14/64 , F23C11/00
摘要： PROBLEM TO BE SOLVED: To provide a thick and thin type gas burner which enables the use of one gas nozzle to satisfactorily control bifurcation into thick gas and thin gas and to lead the bifurcated flows to a main burner part and an auxiliary burner port and make the flows respectively burn as a main flame and a flame from a flame lightention tip burner satisfactorily. SOLUTION: The pressure distribution of fuel gas is evened out at inclined parts 6a, 6a of a swelling immediately preceding the top 6 of a swelling formed by laying the top parts of a swelling part 5 one over another that constitute a gas-bifurcating mechanism 3 and the fuel gas is for its distribution made to flow from thick-gas holes 6b, 6b in the inclined parts 6a, 6a of the swelling respectively and evenly into auxiliary passageways 2b, 2b so that the thick gas can be burned satisfactorily as flame-retention.

35. 发明专利

JPH07127853A COMBUSTION CONTROLLER 失效
公开(公告)号：JPH07127853A
公开(公告)日：1995-05-16
申请号：JP30338593
申请日：1993-11-08
申请人： NORITZ CORP
发明人： WAKATA TAKESHI , MATSUDA TAKAHIRO , KUMON MASAAKI , UEDA HIDEO
IPC分类号： F23N5/18 , F23N3/08
摘要： PURPOSE:To keep excellent burning condition at all times against temporary external disturbance and/or deterioration with age by a method wherein the number of rotation of a fan is regulated so that the detected values of the driving current or the driving voltage of a combustion fan becomes a predetermined value upon starting the operation of a combustion equipment. CONSTITUTION:The number of rotation of a combustion fan 8 is controlled in a fan control unit 11 by changing a fan driving current supplied to a DC motor 14 while the number of rotation and the driving current of the fan are detected respectively by a fan rotating number detecting unit 15 and a fan driving current detecting unit 16 while respective detecting signals are inputted into the fan control unit 11. Accordingly, the fan control unit 11 controls the number of rotation of the combustion fan 8 so as to obtain a desired rotating number of the fan in accordance with the amount of combustion while detecting the number of rotation of the fan through feedback control. A characteristic function for determining the number of rotation of the fan with respect to the amount of combustion is determined so as to obtain the optimum air/fuel ratio under a condition without external disturbance and/or deterioration with age and the like and is stored in fan control unit 11.

36. 发明专利

JPH06288540A COMBUSTION APPARATUS 失效
公开(公告)号：JPH06288540A
公开(公告)日：1994-10-11
申请号：JP18307892
申请日：1992-06-16
申请人： NORITZ CORP
发明人： WAKATA TAKESHI , UEDA HIDEO , MATSUDA TAKAHIRO , HASHIMOTO HIDEHISA
IPC分类号： F23N3/08 , F23N5/10 , F23N5/18
摘要： PURPOSE:To prevent abnormal decrease in air supply owing to sharp variations and erroneous detection of an excess air rate in a combustion apparatus. CONSTITUTION:The number of revolutions of an air supply fan 3 is feedforward(FF) controlled responsively to the amount of gas combustion, and the number of revolutions of the fan 3 is feedback controlled responsively to output voltage VT (combustion gas temperature) of a temperature sensor 6. The lower limit of the number of revolutions of the fan 3 is set and is regulated such that it is not lower than the number of revolutions by the feedback control.

37. 发明专利

JPH06249520A HOT WATER APPARATUS 失效
公开(公告)号：JPH06249520A
公开(公告)日：1994-09-06
申请号：JP3654193
申请日：1993-02-25
申请人： NORITZ CORP
发明人： WAKATA TAKESHI , MATSUDA TAKAHIRO , HASHIMOTO HIDEHISA , KUMON MASAAKI , UEDA HIDEO
IPC分类号： F24H1/10 , F24H9/16
摘要： PURPOSE:To achieve a draining of a heater sufficiently after a trial by providing a control means to keep a flow regulating valve of the heater open according to a specified draining command. CONSTITUTION:A control means 36 inputs detection signals from temperature sensors 16, 20 and 24 and flow rate sensors 18 and 26, a command signal from a control section 34 and a signal from a draining switch 35 separately. When the draining switch 35 is inputted, a flow regulating valve 22 of a heater is kept open in response to an ON signal to be inputted. As a bypass valve 28 is already opened fully, the draining in the heater 2 can be done by opening an hot water delivery plug 25 with a supply water plug 17 closed. This enables the draining of the heater 2 sufficiently after a trial in hot water heater of a bypass mixing type water heater.

38. 发明专利

JPH06109239A COMBUSTION DEVICE 失效
公开(公告)号：JPH06109239A
公开(公告)日：1994-04-19
申请号：JP28377392
申请日：1992-09-28
申请人： NORITZ CORP
发明人： UEDA HIDEO , WAKATA TAKESHI , HASHIMOTO HIDEHISA , KUMON MASAAKI , MATSUDA TAKAHIRO
IPC分类号： F23N3/08
摘要： PURPOSE:To prevent incomplete combustion at an initial starting time of ignition caused by an aging such as a dust clogging or a lack of supplying of air caused in regular causes. CONSTITUTION:In the case that an FB control during combustion is acted in such a direction for increasing the number of rotation RS of a fan, a U flag 20a is set and in the case that the FB control is acted to set in a decreasing direction, a D flag 20b is set. In the case that the flag 20a is set at the time of stopping combustion, the number of count Fu of the U counter 22a is increased only by 1 and the D counter 22b is cleared. In addition, in the case that the D flag 20b is set, the count number Fd of the D counter 22b is increased only by 1 and the U counter 22a is cleared. In the case that the counted value Fu of the U counter 22a reaches a specified value Nu, an FF control value RFF of the number of rotation RS of the fan is corrected to be increased and in turn in the case that the counted number Fd of the D counter 22b reaches a specified value Nd, the FF control value RFF is corrected to be decreased.

39. 发明专利

JPH0642709A FUEL-AIR COLLISION TYPE COMBUSTION DEVICE 失效
公开(公告)号：JPH0642709A
公开(公告)日：1994-02-18
申请号：JP20720592
申请日：1992-07-10
申请人： NORITZ CORP
发明人： YASUDA HIROFUMI , MATSUDA TAKAHIRO
IPC分类号： F23C5/28 , F23C99/00 , F23C11/00
摘要： PURPOSE:To provide a fuel-air collision type combustion device capable of achieving clean combustion (substantial reduction in the generation of soot and NOx) even when a combustion load is increased, thereby also achieving a high turn down ratio (high TDR). CONSTITUTION:In the title fuel-air collision type combustion device, a pair of burners 40 ejecting fuel and primary air for combustion are provided on both sides of a combustion chamber 2a so as to opposingly face each other, and the fuel and primary air for combustion ejected from the burners on both sides are collided with each other in the vicinity of the central part of the combustion chamber 2a so as to form a collision flame. Further, in the combustion chamber, secondary combustion air introducing ports 50 are opposingly provided at positions in the downstream of the position where the collision frame is formed.

40. 发明专利

JPH05322130A PREMIXING COMBUSTION APPLIANCE 失效
公开(公告)号：JPH05322130A
公开(公告)日：1993-12-07
申请号：JP16229092
申请日：1992-05-27
申请人： NORITZ CORP
发明人： MATSUDA TAKAHIRO , WATANABE TOSHIO
IPC分类号： F23D14/02
摘要： PURPOSE:To increase durability of a premixing combustion appliance and to stably burn for a long period by preventing build-up of dusts on a surface of a burner port structure opposed to a mixing chamber and in the chamber. CONSTITUTION:A premixing combustion appliance previously mixes the air fed by air supply means 12 and fuel fed by fuel supply means in a mixing chamber 11, and diffuses this mixture gas in a combustion chamber 15 through a porous burner port structure 14 formed with many burner ports to burn it in the chamber 15. An inner burner 25 is disposed in the chamber 11, an openable exhaust port 18 is provided, opened after combustion operation is finished to burn the burner 25 in the chamber 11 for a predetermined time, and incinerated ash is discharged from the port 18 by the means 12.

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