公开(公告)号：US20170276352A1

公开(公告)日：2017-09-28

申请号：US15470307

申请日：2017-03-27

申请人： Azbil Corporation

发明人： Kayo SUZUKI ,  Takeshi NISHIYAMA ,  Shigeki ISHII

IPC分类号： F23N5/20 ,  F23N5/24

CPC分类号： F23N5/203 ,  F23N5/20 ,  F23N5/24 ,  F23N5/242 ,  F23N2027/16

摘要： A first reset switch is attached to a combustion controlling device. A second reset switch is installed at a remote place distant from the combustion controlling device. A first reset input from the first reset switch is received without any restriction to release the lockout. A reset input from the second reset switch is received with any restriction to release the lockout. Specifically, when the lockout releases are performed for a predetermined number of times or more upon receiving the reset input before a predetermined time elapses after the lockout has been released upon receiving the initial reset input, the release of the lockout upon receiving the reset input is prohibited until the predetermined time elapses.

公开(公告)号：US20180266682A1

公开(公告)日：2018-09-20

申请号：US15922284

申请日：2018-03-15

申请人： Azbil Corporation

发明人： Takeshi NISHIYAMA ,  Yuichi KUMAZAWA ,  Shigeki ISHII ,  Akira YAMADA ,  Satoru YAMAGISHI ,  Tomoya NAKATA ,  Kayo SUZUKI

IPC分类号： F23N5/08 ,  F23M11/04

CPC分类号： F23N5/082 ,  F23M11/045 ,  F23N5/242 ,  F23N2027/02 ,  F23N2027/16 ,  F23N2029/00 ,  F23N2031/12

摘要： A pseudo flame detecting portion detects a presence of a pseudo flame due to disturbance light when a sensor output of a flame sensor is equal to or greater than a pseudo flame threshold value and detects an absence of pseudo flame when the sensor output is equal to or less than another pseudo flame threshold value. The combustion controlling portion monitors the pseudo flame detection result from the pseudo flame detecting portion before an ignition attempt in the combustion equipment and, when the pseudo flame detection result continuously indicates presence of pseudo flame for a first monitoring time, cancels the ignition attempt in the combustion equipment.

公开(公告)号：US20200309372A1

公开(公告)日：2020-10-01

申请号：US16825706

申请日：2020-03-20

申请人： AZBIL CORPORATION

发明人： Takashi WATANABE ,  Shigeki ISHII ,  Yuichi KUMAZAWA ,  Kayo SUZUKI ,  Satoru YAMAGISHI

IPC分类号： F23N5/08

摘要： A flame detection system includes: a UV sensor that serves as a flame sensor detecting a UV ray generated by a flame; an application voltage generation unit that applies a driving voltage to the UV sensor; a discharge detection unit that detects a discharge in the UV sensor; a discharge count unit that counts the number of detected discharges; a discharge probability calculation unit that calculates a discharge probability on the basis of the number of discharges counted by the discharge count unit and the number of times the driving voltage is applied; a UV intensity determination unit that determines an intensity of the UV ray on the basis of the discharge probability; and a determination result output unit that outputs the intensity of the UV ray determined by the UV intensity determination unit via display or communication.

公开(公告)号：US20180266683A1

公开(公告)日：2018-09-20

申请号：US15922299

申请日：2018-03-15

申请人： Azbil Corporation

发明人： Takeshi NISHIYAMA ,  Yuichi KUMAZAWA ,  Shigeki ISHII ,  Akira YAMADA ,  Satoru YAMAGISHI ,  Tomoya NAKATA ,  Kayo SUZUKI

IPC分类号： F23N5/08 ,  F23M11/04

CPC分类号： F23N5/082 ,  F23M11/045 ,  F23N5/242 ,  F23N2027/02 ,  F23N2027/16 ,  F23N2029/22

摘要： A flame detection adjusting portion adjusts a preset reference threshold value based on a sensor output indicating disturbance light obtained from a flame sensor before an ignition attempt in combustion equipment and outputs an obtained adjusted threshold value, and a combustion flame detecting portion detects a presence or an absence of a combustion flame in the combustion equipment based on the sensor output obtained from the flame sensor during combustion in the combustion equipment and an adjusted threshold value.

公开(公告)号：US20240035658A1

公开(公告)日：2024-02-01

申请号：US18216462

申请日：2023-06-29

申请人： Azbil Corporation

发明人： Shigeki ISHII ,  Takeshi NISHIYAMA ,  Daisuke OKUMURA ,  Kayo SUZUKI

IPC分类号： F23N5/24

CPC分类号： F23N5/242 ,  F23N2225/00

摘要： To detect a sign of a flame failure that cannot be detected by monitoring a flame voltage and a flame current, a flame monitoring device is provided that includes an information acquisition unit that sequentially acquires a flame level indicating frequency of discharge of a flame detector caused by a flame of a main burner, and a flame level monitoring unit that monitors the flame level sequentially acquired by the information acquisition unit. The flame level monitoring unit detects a sign of a flame failure of the flame by detecting an occurrence of a specific period during which a state in which the flame level is less than a predetermined threshold value continues for a length of time equal to or more than a predetermined period and less than a flame response period.

公开(公告)号：US20230235880A1

公开(公告)日：2023-07-27

申请号：US18081880

申请日：2022-12-15

申请人： Azbil Corporation

发明人： Shigeki ISHII ,  Kayo SUZUKI ,  Kenichi YAMAGATA

IPC分类号： F23M11/04 ,  F23N5/08

CPC分类号： F23M11/045 ,  F23N5/08 ,  F23N2227/22

摘要： To grasp a state of a combustion apparatus based on a flame state of a burner, a discharge number measurement unit measures the number of discharges of a flame sensor per unit time. A light emission information generation unit generates, as light emission information, information obtained based on a value obtained by dividing a total (accumulation) of the number of discharges per unit time measured by the discharge number measurement unit by a total measurement time. A determination unit determines the state of the combustion apparatus to be inspected based on the light emission information generated by the light emission information generation unit as described above.