TW400425B - Combustion apparatus - Google Patents

Abstract

To provide a combustion apparatus which has more improvement in safety. The apparatus consists of transistors 14, 15 connected in series between ""out"" terminal of the holding coil 12-regulator 911, a frame rod 800 for detecting the combustion flame and outputting the flame detection signal 801, and combustion detection circuit 81, 82 which output ON signals 811, 821 to transistors 14, 15 while the flame rod 800 outputs flame detection signal 801.

Description

-& 7 Whether to change the original substantive content after printing

[Technical Field of the Invention] The present invention relates to a combustion device. [Known technology] From the past, it has: a solenoid valve, which is installed in the gas supply path for supplying gas to the gas burner; a suction and hold circuit, when the ignition instruction is issued at a predetermined time due to the opening and closing of the water flow (such as 0.4 seconds), energize the solenoid valve; ignition circuit, high voltage is added to the ignition electrode by the ignition instruction; flame protection, facing the gas burner, the flame detection circuit, detects the fire based on the output of the flame rod It is known to use a combustion device that sends an ON signal to a solenoid valve electrically connected between a solenoid valve and a battery between tests. [Problems to be Solved by the Invention] In the above-mentioned combustion device, the safety false in the case of no fire or fire is ensured by the above-mentioned transistor and the fire detection circuit. In case, when the ON signal failure occurs in the fire detection circuit, it has nothing to do with the presence of the flame. The signal is sent to the transistor, and when the ignition detection circuit is also normal, if the transistor has an ON signal failure, it has nothing to do with the presence of the flame. The valve is still flowing battery. It is an object of the present invention to provide a combustion device with improved safety. [Means for Solving the Problems] In order to solve the problems described above, the present invention adopts the following configuration. ⑴Equipped with: solenoid valve, installed in the gas supply path to the gas burner, the valve body is opened by electricity; the ignition circuit starts the ignition operation from the ignition instruction signal; the safety circuit is started by the ignition instruction signal- 3-(Please read the notes on the back before filling out this page)

This paper size applies to China's national standard (CNS> A4 size (210X297 mm)-&7; whether the original content will be changed after printing, printed by the staff consumer cooperative of the Central Standards Bureau of the Ministry of Economic Affairs

[Technical Field of the Invention] The present invention relates to a combustion device. [Known technology] From the past, it has: a solenoid valve, which is installed in the gas supply path for supplying gas to the gas burner; a suction and hold circuit, when the ignition instruction is issued at a predetermined time due to the opening and closing of the water flow (such as 0.4 seconds), energize the solenoid valve; ignition circuit, high voltage is added to the ignition electrode by the ignition instruction; flame protection, facing the gas burner, the flame detection circuit, detects the fire based on the output of the flame rod It is known to use a combustion device that sends an ON signal to a solenoid valve electrically connected between a solenoid valve and a battery between tests. [Problems to be Solved by the Invention] In the above-mentioned combustion device, the safety false in the case of no fire or fire is ensured by the above-mentioned transistor and the fire detection circuit. In case, when the ON signal failure occurs in the fire detection circuit, it has nothing to do with the presence of the flame. The signal is sent to the transistor, and when the ignition detection circuit is also normal, if the transistor has an ON signal failure, it has nothing to do with the presence of the flame The valve is still flowing battery. It is an object of the present invention to provide a combustion device with improved safety. [Means for Solving the Problems] In order to solve the problems described above, the present invention adopts the following configuration. ⑴Equipped with: solenoid valve, installed in the gas supply path to the gas burner, the valve body is opened by electricity; the ignition circuit starts the ignition operation from the ignition instruction signal; the safety circuit is started by the ignition instruction signal- 3-(Please read the notes on the back before filling out this page)

This paper size applies to China's national standard (CNS> A4 size (210X297 mm)

A7 B7 V. Description of the invention (2) Start to detect the combustion flame, and energize the solenoid valve between the detection of the combustion flame; the heat exchange water path is heated by the gas burner with a heat exchange part; the water flow switch is connected at one end side The battery is closed when detecting the water flow flowing through the heat exchange water circuit; the switching element is electrically connected between the solenoid valve and the battery; the ignition circuit starts the ignition operation when the water flow switch is closed; the fire detection Components, which are arranged near the gas burner to output a flame detection signal when detecting a combustion flame; and a fire detection circuit, between the fire detection element outputting the flame signal and an ON signal to the switching element, the safety circuit you set Into two systems, and the ignition indication signal has the power for both the holding circuit and the Anjin circuit. The signal is input through the thermal fuse, 0 and the ignition detection circuit, and the ignition is detected based on the input of the flame detection signal. Formed two independent discriminant sections. The signal sending section for the above signal output. (2) It has a suction line that opens and closes the valve body by energization, and a holding coil that holds the open state by the energization attempt after it is attracted. It is equipped with a solenoid valve that is arranged to supply gas to the gas burner. In the road; the heat exchange water channel has the heat exchange part heated by the gas burner; the water flow switch is connected to the battery at one end side and the contact is closed when the water flow through the heat exchange water channel is detected; the first switching element is electrically connected Between the attraction coil and the battery; the second and third switching elements are electrically connected in series between the holding wire 圏 and the other end of the water flow switch; the suction timer circuit is electrically connected to the other end of the water flow switch On the side, when -4- this paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm), Γ J (^ i ~ (Please read the precautions on the back before filling out this page) Staff Consumption of the Central Bureau of Standards, Ministry of Economic Affairs Cooperative printed by the Central Bureau of Standards of the Ministry of Economic Affairs, printed by the Consumer Cooperative A7 B7 V. Description of the invention (彡) When the electric power for operation is supplied within a predetermined time, the first switch mentioned above is switched on. The ignition circuit outputs the 0H signal; the ignition circuit starts the ignition operation according to the ignition instruction; the ignition detection element is arranged near the gas burner to output a flame detection signal when detecting the combustion flame; and the first and second ignition detection circuits, Between the ignition detection element and the flame detection signal, an ON signal is output to the second and third switching elements. [Action] [Yes · For the scope of patent application item 1] When the ignition instruction signal is issued, the solenoid valve is activated. The valve body is energized to open the valve body. At the same time, the ignition circuit starts to ignite. When the gas burner is on fire, the safety circuit continues to energize the solenoid valve when the safety circuit detects the combustion flame. When an abnormality occurs, the safety circuit stops energizing the solenoid valve and closes the solenoid valve. When the safety circuit on the other side fails and the signal to stop energizing the solenoid valve is not output, the energizing valve can also be energized by the safety circuit on the other side. When the water is flowing, the contact of the water flow switch is closed. Because of this, the switching element will open and open the valve body. At the same time The fire circuit starts to ignite. When the gas burner catches fire and the fire detection element outputs a flame detection signal, any of the fire detection circuit's discriminating sections detects the fire, and the signal sending section outputs the ON signal to the switching element so it continues to detect the electromagnetic signal. The valve is energized. -5- This paper size applies to China National Standard (CNS) A4 (210X297 mm) (Please read the precautions on the back before filling this page)

A7 B7 V. Description of the invention (4) The solenoid valve is held open, and the gas burner continues to burn. When each of the discrimination sections of the fire detection circuit detects a misfire, the OFF signal of the signal sending section is output to the switching element, so that the solenoid valve is energized and the solenoid valve is closed. When one of the fire detection circuit discriminating sections is faulty (the flame detection signal is not input but detected as a fire), the normal other discriminating section and the signal sending section also send an ON signal to the switching element to stop energizing the solenoid valve. [For item 2 of the scope of patent application] When water is circulated to the heat exchange water channel, the contact of the water flow switch is closed. Because of this, the suction timer circuit sends a 0 N signal, and the first switching element turns ON the valve body to drink. The ignition circuit performs an ignition operation. When the gas burner catches fire and the ignition detection element outputs a flame detection signal, the first and second ignition detection circuits output ON signals to the second and third switching elements to continue to energize the holding wire ，, and the solenoid valve is kept open. The gas burner Continue to burn. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) When one of the 2nd or 3rd switching elements has an ON failure, if the 1st and 2nd fire detection circuits are normal At normal time, the switch element on the normal side can be turned off when it is not on fire or when it is on fire. When one of the first ignition detection circuit or the second ignition detection circuit fails (the ignition detection element does not output a flame detection signal but outputs a 0 N signal), if the second and third switching elements are normal, when there is no ignition. In case of fire, the second switching element can be turned off any of the third switching element-6-This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs Explanation of the invention (η 1 I party 〇1 1 [Effect of the invention] Γ [for patent application scope item 1] / -— When the safety circuit of the n party fails »Can be done by other safety circuits Please read 1 1 Controlled solenoid valve 0 read back 1 1 Therefore >> by disappearing indication> the solenoid valve can be closed reliably (the surface is not formed 1 Note 1 fire extinguishing cannot be performed) 〇 Matter 1 does not catch fire In the event of fire, it can be sure. Close the solenoid valve (do not cause the item to be refilled, and 1 gas will be released, that is, the non-combustion gas will be released). 1 is better than Anjin. 0 script 1 fire detection circuit discrimination section. The flame 1 detects the signal but catches fire and detects it) 由于 9 Because the normal other judgement unit 1 1 and the signal sending unit »can be controlled to send 1 to the ON signal output from the switching element, the output is set to 0, so 9 stops the exchange of water to the exchange channel. The water flow i can be closed reliably. 1 I close the solenoid valve (no -i & r will not be able to extinguish the fire) 〇 i i will not catch fire or fire 1 1 I can reliably close the solenoid valve (do not cause gas generation or non-combustion gas) (1 1 release) i is better than safety 0 [for the second item in the scope of patent application] '.1.-1 Occurs on either the second switching element or the third switching element 0H fault f 1 1 or 1st fire detection circuit and 2 fire detection circuit failure I 1 (fire detection element does not output flame detection signal but output 0H speech 1 1 state) »by normal switch Components and fire detection circuit s to protect! I hold the line to keep the current -7 can be controlled on the ground 01 1 1 1 1 1 1 This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) A7 B7 V. Description of the Invention (k) Therefore, the solenoid valve can be closed reliably by stopping the flow of water in the heat-exchanging water circuit (it will not cause fire extinguishment). It is safer to close the solenoid valve when it is not on fire or fire (it will not cause gas generation, that is, gas emission without burning gas), which is better than safety. [Embodiment] A first embodiment of the present invention (corresponding to items 1 and 3 of the scope of patent application) will be described with reference to Figs. 1 to 7. As shown in the figure, the instantaneous gas water heater A has a suction coil 11 and a holding coil 12 and includes: an electromagnetic safety valve 1 arranged in a gas pipe 21 for supplying gas to the gas burner 2; transistors 13, 14, 15 ; Heat exchange water circuit 3, with heat exchanger 3 1; Water flow switch 4, when detecting water flow, contact 41 becomes a valve; ignition timer circuit 51 and igniter drive circuit 52, contact 41 becomes closed when M is set for a time (5 5 seconds), send 0 N signal 5 11 and generate high voltage; attract timer circuit 6, when contact 41 is closed, the first timer time (in 0.4 seconds) sends 0 N signal 6 1; hold timer Circuit 7 sends the ON signal at the second timer time (within 5.5 seconds) when contact 4 is closed; M and the ignition detection circuit, when the contact 41 is closed, it starts to detect the combustion flame. Between the detection of the combustion flame and the transistor, 14.15 sends ON signal 8 1 1 '8 2 1 ° Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page) 91 is the adjuster, the contact 41 is closed when it is closed. " A voltage of V ee2 (3 V) is applied to the IN ”terminal 910, and a stable voltage is generated at the“ 0 UT ”terminal 9 1 1 The voltage V RE (; (1.5 V)) 92 is a dry cell. In this example, two monolithic 1.5 V manganese dry cells are connected in series to generate an electromotive force of voltage V eei (3 V). -8- 本Paper size applies to Chinese National Standard (CNS) A4 specification (210X 297 mm) A7 B7 Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (7) 1 1 9 is an electronic unit, which assembles each circuit 0 1 J The electromagnetic safety valve 1 has a suction coil 11 1 I (3.7 Ω) which is opened by energizing the valve body, and maintains an open state after being attracted by energization -S Please coil 12 (500 Ω), which is arranged in the gas pipe The first upstream of 21 5 First read 1 1 gas Λ / ,,, burner 2, set below the heat exchanger 3 1 9 and combust gas by the gas pipe 1 1 | of the I pipe 2 0 gas pipe 21 9 pairs Solenoid safety valve 1 Λ Note 1 I Gas regulator valve 211 Water m Water pressure commercial gas valve box connected to the whole valve 1 | Re 21 2 and capacity adjuster 21 3 is placed on the upstream side. 4 Writes Cr. The burner near the heat exchanger 31 is equipped with a temperature of 152 Ό K on the previous page. I The temperature fuse that was blown at 42 I 〇 This temperature fuse 42 , One end is electrically connected to the water flow switch 4 »the other end is electrically connected to the " 1 N " terminal 91 0) 1 | hydraulic commercial gas valve 21 2 > is connected to the water regulator 323 by the link 43 When the water is flowing in the heat exchange channel 3, the capacity adjuster 213 is connected to the capacity adjustment button 214 > passes the gas amount corresponding to the slip amount of the 1 I capacity adjustment button 214 through the 0 I 1 heat exchange channel 3, According to the order of the water supply pipe 32 heat exchanger 31 hot water outlet pipe 1 33, 0Γ water supply pipe 32 9 is equipped with a hot water supply switch (not shown). Water passes 1 1 according to 32 1 Water regulator 323 Λ and Hot water temperature adjustment button 324 Heat 1 1 Water volume adjuster 325 ° 1 I Water flow switch 4, insert dry battery 92 a temperature fuse 42 rooms 9 link 1 1 connect rfii between water regulator 323 and water pressure automatic gas valve 212 , Moving rod 43 1, Contact 41 is closed when water flows. 0 I Ignition timer circuit 5 1 9 Start from the power supply from contact 41. 5 1 1 -9 1 1 1 1 This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) A7 B7 Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (8) 1 0 seconds to OtH 5 1 1 Pair of igniter drive circuit 52 and transistor Jam body 15 sent out. 1 1 Ignition drive circuit 52 »Between input of 0N signal 9 Generate spark discharge 1 High voltage for electricity 9 Pairs of ignition electrode / · -V equipped with burner 2 facing gas m λ, 1 Please add 1 52 1 The voltage used for ignition 〇 and the current consumption is relatively large Μ voltage v eei Read 1 1 as the operating power 〇 Back 1 1 1 1 Fire detection circuit 81 Λ 82 As shown in Figure 9 9 Flame rod of device 2 8 1 0 AC voltage for additional flame current detection Ψ Item 1 I (approximately 100 V) is a circuit for detecting flame current > Fill flame flame 800 to detect flame current and output flame detection signal 801 When detecting a fire, send the 1 0N letter 8 1 1 821 on this page to the transistor 1 4, 1 5 0 and the voltage V. Operation 1 1 is the operating power. 0 I I attract the timer circuit 6 > By comparison Electricity 9 CR charging circuit, etc. 1 „j is set to 9 for the timer time spike t Μ as the timer rfl. The operation starts to be ordered | When the supply voltage stabilizes the voltage V REG > The first timer time (0 .4 In seconds) 1 I * sends 0N signal 61 out of transistor 13 〇1 1 transistor 13 > is arranged between attraction coil 11 and dry battery 92, between input 1 I and ON letter 61, t conducts to attract coil 11 Sink current 0 | Hold timer circuit 7 > 1 is composed of comparison circuit 9 CR charging circuit, etc. t is used as timer operation start signal when stabilizing voltage V REG is supplied 1 I 2nd timer time (5 .5 Seconds), send ON signal to transistor 1 4 1 1 7 1 〇1 1 transistor 14 Λ 15 »Κ in-line connection is arranged in the holding coil 12-" OUT " 1 I sub91 1 between > input 0N signal 81 1 (or ON signal 71) > one of ON signal 1 1 821 (or ON signal 5 1 1) ， Continuity to the holding coil 12 Circulation guarantee 1 1 -1 0- 1 1 1 1 This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Note (9) Holding the current to maintain the electromagnetic safety valve 1 open. Secondly, the operation of the instantaneous gas water heater A will be explained according to the flow chart of Fig. 4 and Fig. 5 and the time chart of Fig. 6. [Initiation of use of the appliance (refer to FIG. 4)] When the user turns on the hot water supply switch (step si), the water flow switch 4 is closed (step s2), and the voltage V e (: 2 is applied to the “1N” terminal 910 of the regulator 91 When the power is supplied, a stabilizing voltage V reg is generated at the “0 UT” terminal 9 1 1. Power is supplied from the stabilizing voltage VR £ ^, and the operation is performed in step s3. Ignition timer circuit 51, the driver circuit for the igniter 52 and transistor 15 send ON signal 511, and igniter drive circuit 52 applies high voltage to ignition electrode 521 to start spark discharge. Attraction timer circuit 6 sends ON signal 6 1 to transistor 1 3. Transistor 1 3 turns on and sucks The attracting current flowing in the coil 11 opens the solenoid valve 1. The holding timer circuit 7 sends the 0N signal 71 to the transistor 14, and the transistor 14 is turned on (the transistor 15 is also turned on). The holding current is passed to the holding wire 21. s4, the water pressure automatic gas valve 212 is opened, and the gas burner 2 catches fire. When 0.4 seconds have passed since the water flow switch 4 was closed (step s 5 YES), the suction timer circuit 6 does not send a 0N signal to the transistor 61 , Transistor ^ I) 130FF will not circulate to keep line 圏 11 Current lead (step s6). <: 'When the lapse of 5.5 seconds from the completion of the water flow switch (step s 7 Y ES), the hold timer circuit 7 will not send a 0 H signal 7 1 to the transistor 14. Ignition timer circuit 51 will send 0N signal 511 to igniter drive circuit 52 and -11- This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page )

Order printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of Invention (κ) Transistor 15 is sent to stop spark discharge (step s 8). At "normal", the fire detection circuits 81, 82 have detected the flame current, and sent the 0H signals 811, 821 to the transistors 14, 15 (step s9 YES). Therefore, the maintenance of the electromagnetic safety valve 1 is continued. Voltage 1.8 VM (Step S10 YES), when the flame current is detected, it will continue to supply hot water until it stops being used. When the flame current is not detected (not on fire; Figure 6 (b)), when the flame current is not detected Time (fire; Figure 6 (c)), or when the voltage Veel becomes 1.8VM (voltage drop; Figure 6 (d)), the confirmation lamp 93 is continuously lit, and the ignition detection circuit 81, 82 of 0N The signals 811 and 821 stop sending out the transistors 14 and 15 (step s11). Because of this, the electromagnetic safety valve 1 is closed. When the user feels abnormal and closes the hot water supply valve (step s 1 2), the water will not be formed. The flowing water pressure automatic gas valve 212 is closed (step sl3), and the water flow switch 40 is turned off, and at the same time, the lamp 93 is turned off (step sl4). [Stop the appliance (refer to FIG. 5)] 'To stop the use, the user turns off the hot water supply Valve (step si), water will not flow, causing the hydraulic pressure automatic gas valve 212 to close ( Step s2), the gas burner 2 disappears (step s3), the water flow switch 4 is OFF (step s4), and the electromagnetic safety valve 1 is closed (step s5). The instantaneous gas water heater A is composed of M. The action has [A] The advantage of [c]. Between the "0 U Τ" terminals 9 1 1 of the holding coil 1 2-adjuster 9 1, M is connected in series with the transistors 14 and 15, and when the combustion flame is detected by the flame stalk 800- 12- This paper size applies to Chinese National Standard (CNS) Α4 size (210 × 297 mm) (Please read the precautions on the back before filling this page)

A7 B7 V. Description of the invention (.) The ON signals 811 and 821 are set on the ignition detection circuits 81 and 82 of the transistor. When one of the transistor 14 or the transistor 15 has an ON failure, if the ignition detection circuits 81 and 82 are normal, the normal transistors 14 and 150PF can be stopped when the ignition signals 811 and 821 are stopped during a non-ignition or fire. In addition, if one of the ignition detection circuits 81 and 82 is turned ON (the flame rod 800 outputs ON signals 811 and 821 although the combustion flame is not detected), if the transistors 14 and 15 are normal, it can be turned off when there is no fire or fire. Either of the transistors 1 4 and 1 5. Due to this, the holding current of the holding coil 12 is interrupted, the electromagnetic safety valve 1 is closed, and the gas burner 2 is extinguished. [A] In use, if one of the transistors 14 and 15 fails 0N or one of the ignition detection circuits 81 and 82 fails 0N, the hot water supply switch is turned on to stop the flow of water to the heat exchange water circuit 3 and the water flow switch 4 When it is OFF, the electromagnetic safety valve 1 can be closed and closed without causing fire extinguishing, which is better than safety. [B] Before ignition, if one of the transistors 14, 15 has an ON fault, or when one of the ignition detection circuits 81, 82 fails, and there is a misfire during ignition, and a misfire occurs in the hot water supply, The solenoid safety valve 1 can be closed reliably. Therefore, it will not cause the production of gas (non-burning gas) printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page), which is better than safety. [C] In the event of a 0N failure in one of the transistors 14, 15 or 0H in one of the fire detection circuits 81, 82 during use, the electromagnetic safety valve 1 can be closed reliably in the event of a fire in the heating water 1. Therefore, it does not cause the release of gas (non-burning gas), which is better than safety. -13- This paper size applies to Chinese National Standards (CNS) A4 specifications (210 × 297 mm) A7 B7 Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 5. Description of Invention ((>) 1 1 Second > According to Figure 1, Fig. 2 Fig. 4 Λ Fig. 5 Fig. 6 and Fig. 8 Explanation 1 1 The second embodiment of the present invention (for the second item in the scope of patent application) 〇1 I Instant gas boiling water SB > No / -— S Read the same as before 1 〇 Read 1 Hold the coil 1 2-Adjuster 9 1 of the "OUT" terminal 9 1 1 Connect an electrical back 1 1 No. 1 input 1 Crystal 1 4 〇 This transistor 14 series In 1N letter Dtfo 5E 71 or 0N letter 85 1 Attention 1 I > Do ON 0 Matter 1 | Fire detection circuit 8 is for detecting gas Λ / ,, >> Burner 2 / ^ »,, Burning fire Write y flames according to the fire detection signal 80 1 output from the flame rod 800 The fire detection unit 83 &84; 84 on both sides of this page is detected, and the discrimination unit 83 9 on both sides is δ4. When a 1 fire is detected, it sends an ON letter 5 to 85. The signal transmission unit 85 constitutes 〇1 I ignition timing. Igniter circuit 51 9 When power is supplied for the desired operation 9 5. 5 seconds, one pair of igniter drive circuit 52 sends 0N signal 5 11 〇1 ding I Second> According to the flowchart of Fig. 4, Fig. 5, and the time of Fig. 6 Illustration 1 | The operation of the gas water heater B at the instant of the moment 0 1 1 [Utilization of the appliance (refer to Fig. 4)] 1 1 When the user turns on the hot water switch (step S 1), the water flow switch 4 closes CI (step S 2 ) 9 pairs of regulators 91 of "1 N" 1 itt tan 910 power supply voltage VCC2 * 1 1 at " OUT II terminal 9 1 1 to generate a stabilized voltage V REG 1 | from the start of the stabilized voltage V REG, at Step s3 Do the next action 1 1 Do 0 1 1 Ignition timer circuit 51 9 0N signal 511 pairs ignition circuit is driven to send a 1 I 52 > ignition drive circuit 52 pairs of ignition electrodes 521 additional high voltage 1 1 t start spark discharge. Attraction timer circuit 6 sends 0N to transistor 1 3 1 1 -1 4- 1 1 1 1 This paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 mm) A 7 B7 V. Description of the invention (0 ) Signal 61, the transistor 13 is turned on, and the electromagnetic safety valve 1 is opened due to the attraction current flowing to the attraction coil. The holding timer circuit 7 sends a 0H signal 1 4 to the transistor 14, and the transistor 14 is turned on to the holding coil 12 and keeps flowing. At step s4, the water pressure automatic gas valve 212 is opened, and the gas burner 2 catches fire. When 0.4 seconds have passed since the closing of the water flow switch 4 (step s5 YES), the suction timer circuit 6 will not send an ON signal to the transistor 3 61 The transistor 1 3 does 0 卩 F to the attracting coil 11 and does not flow an attracting current (step s 6). When 5.5 seconds have passed since the completion of the water flow switch 4 (step s7 YES), the hold timer circuit 7 will not send an ON signal 71 to the transistor 14, and the ignition timer circuit 51 will not send an ON signal to the igniter drive circuit 52. 511 Stop the spark discharge (step s8). In the "normal" state, the ignition detection circuit 8 has detected the flame current, and sent the 0 N signal 8 5 1 to the transistor 14 (step s 9 Y E S) to continue holding the electromagnetic safety valve 1. The voltage Veel is 1.8VK (step slO YES), and the flame current is detected until the appliance is stopped and the hot water supply is continued. Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) When the flame current is not detected [No fire; Figure 6 (b)], When the flame current is not detected [Misfire 6 (c)], or when the voltage V cci becomes 1.8VM [voltage drop; FIG. 6 (d)], confirm that the lamp 93 is continuously turned on, and the 0H signal 851 of the ignition detection circuit 8 is used to the transistor 14 Stop sending (step sll). Due to this, the solenoid safety valve is closed. When the user feels that the hot water supply switch is turned off abnormally (step sl2), the water will not flow. The water pressure self-service gas valve is closed (step s 1 3). The water flow switch-15- This paper size applies to the Chinese National Standard (CNS) 8. 4 specifications (210X297 mm) A7 B7 5. Description of the invention (4) When the 4 is turned off, confirm that the light 93 is off (step sl4). [Stop the appliance (refer to Figure 5)] In order to stop use, when the user turns off the hot water supply switch (step si), water will not flow, and the hydraulic pressure automatic gas valve is closed (step s2), and the gas burner 2 disappears (step s3) ), Water flow switch 4 # 0FF (step s4), the electromagnetic safety valve 1 is closed (step s5). The instantaneous gas water heater B has the following advantages: The fire detection circuit 8 is connected with a transistor 1 4 between the holding coil 12 and the "OUT" terminal 9 11 of the regulator 91. The fire detection signal 8 0 1 is used to detect the fire by the flame detector 8 0 1 input. 8 3, 8 4, and the two discriminating sections 8 3, 8 4 constitute a signal sending section 8 5 that outputs a 0 N signal when detecting a fire. Occurs when any of the discriminating sections 8 3, 8 4 of the fire detection circuit 8 occurs. 0 N signal failure (the flame 800 will not output the flame detection signal 801 but it will detect fire), if the transistor 14 is normal, the transistor can be 140 FF when it is not on fire or when it is on fire. Staff Consumer Cooperatives, Central Standards Bureau, Ministry of Economic Affairs Printed (Please read the precautions on the back before filling this page) Because of this, the holding current of the holding coil 12 is interrupted, the electromagnetic safety valve 1 is closed, and the gas burner 2 disappears. [丁] In case of use, when fire detection When a 0 NR signal failure occurs in one of the discrimination sections 8 and 3 and 8 of the circuit 8, if the transistor 14 is normal, the hot water switch is turned off, and the water flow in the heat exchange water channel 3 is stopped. When the water flow switch 4 is turned off, the transistor is turned off. 14% OFF for electromagnetic safety valve 1 Field closure will not result in fire extinguishing and cannot be superior to safety. -16- This paper size applies to Chinese National Standard (CNS) A4 (21 × 297 mm) Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (Β) [penter] In case of 0H signal failure of one of the discrimination sections 83 and 84 of the ignition detection circuit 8 before ignition, if the transistor 14 is normal, when the transistor 14 is normal, when the ignition does not occur or a fire occurs in hot water supply, The electromagnetic safety valve 1 can be closed reliably. Therefore, it does not cause the release of gas (non-burning gas), which is better than safety. [Five] In case of use, the discrimination section 8 of the fire detection circuit 8 3, 8 4 When one of the ON signals fails, a misfire occurs in the hot water supply, and the electromagnetic safety valve 1 can be closed reliably. Therefore, it does not cause the release of gas (non-burning gas), which is better than safety. In the above embodiment, as the solenoid valve, M indicates that each of M has a suction line and a holding coil, but M may be used as both a suction and a holder. In the above embodiment, it is used as a combustion device for a water heater. Display, but it can also be applied to other combustion devices such as fan heaters. In addition to the above cell example, it is shown as the fire detection element M flame rod, but M thermocouple can also. — [Simplified description of the drawing] Figure 1 is an external view of an instantaneous gas water heater according to the first and second embodiments of the present invention. FIG. 2 is a structural diagram of an instantaneous gas water heater according to the first and second embodiments of the present invention. FIG. 3 is related to the first embodiment of the present invention. The electrical circuit diagram of the instantaneous gas water heater. Figure 4 shows the instantaneous gaseous opening of the first and second embodiments of the present invention. -17- This paper size applies the Chinese National Standard (CNS) A4 specification (210 × 297 mm) (Please read first Note on the back, please fill out this page) Order A 7 B7 V. Description of the invention (A) Flow chart of water device operation. Fig. 5 is a flow chart showing the operation of the instantaneous gas water heater according to the first and second embodiments of the present invention. Fig. 6 is a timing chart showing the operation of the instantaneous gas water heater according to the first and second embodiments of the present invention. Fig. 7 is an electrical circuit diagram of a fire detection circuit for an instantaneous gas boiler according to the first embodiment of the present invention. Fig. 8 is an electrical circuit diagram of the instantaneous gas water heater according to the second embodiment of the present invention. [Explanation of symbols] A, B Instant gas water heater (combustion device) 1 Electromagnetic safety valve (solenoid valve) 2 Gas burner 3 Heat exchange water circuit 4 Water flow switch 6 Suction timer circuit (suction circuit) 7 Hold timer circuit ( Holding circuit) 8, 81, 82 Fire detection circuit (safety circuit) 11 Attraction line 圏 Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page) 12 Holding coil 13 Transistor (section 1 switching element) 14 transistor (second switching element) 15 transistor (third switching element) 21 gas tube (gas supply path) -18- This paper size applies to the Chinese National Standard (CNS) A4 specification (2I0X; 297 mm) A7 B7 V. Description of the invention () Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs 31 Heat Exchanger (Heat Exchange Department) 41 Contact 5 1 Ignition timer circuit 52 Igniter drive circuit (ignition circuit) 7 1 0N signal 83-84. Discrimination section 85 Signal sending section 92 Dry battery 511 0N signal 800 Flame rod (fire detection element) 80 1 Flame detection signal 81b 821 0K signal (Please read the precautions on the back before filling this page)

The paper size is applicable to China National Standard (CNS) A4 (210X 297mm)

Claims (1)

Mi Zhen invites # 员 研 尹, this book contains <{:-4 after | £ | 1 Former poverty-stricken content Central Bureau of Standards of the Ministry of Economic Affairs and Consumer Consumption ^^ Α8 Β8 C8 D8 Patent Application No. 85 1 04065 " Combustion device ㈣) patent case (Amended on April 23, 86) λ Application for patent scope: 1. A combustion device with: a solenoid valve, which is arranged in the gas supply path for supplying gas to a gas burner, The valve body is opened by being energized; the heat exchange water circuit has a heat exchange unit heated by the gas burner; a water flow switch, one end of which is connected to the battery, and the contact is closed when the water flow through the heat exchange water circuit is detected; the switching element It is electrically connected between the solenoid valve and the battery; the ignition circuit is started by the ignition instruction signal, that is, when the water flow switch is closed; the safety circuit is started by the ignition instruction signal to detect the combustion flame, and to detect the combustion flame Energizing the solenoid valve between them; a fire detection element arranged near the gas burner to output a flame detection signal when detecting a combustion flame; and Fire detection circuit, between the fire detection element outputting the flame detection signal and outputting a 0H signal to the switching element, the features are as follows: the safety circuit is pretended to be two systems, the ignition instruction signal is provided with a holding circuit and a safety circuit. The power is applied, the signal is input through the thermal fuse, and the paper size applies the Chinese National Standard (CNS) Α.4 specification (210 × 297 mm) (Please read the precautions on the back before filling this page) Mi Mi Please # Yuanyan Yin, this book contains <{:-4 after |||| The original poverty and poverty content of the Central Bureau of Standards of the Ministry of Economic Affairs, and the consumption of work ^^ Α8 Β8 C8 D8 Patent Application No. 85 1 04065 "Combustion Device ㈣) Patent case (Amended on April 23, 86) λ Application scope of patent: 1. A combustion device with: a solenoid valve, which is arranged in the gas supply path for supplying gas to a gas burner, and is used to open a drink by being energized Valve body; heat exchange water path, which has a heat exchange section heated by the gas burner; a water flow switch, one end of which is connected to a battery, when detecting the water flow flowing through the heat exchange water path The contact is closed; the switching element is electrically connected between the solenoid valve and the battery; the ignition circuit is started by the ignition instruction signal, that is, when the water flow switch is closed; the safety circuit is started by the ignition instruction signal Combustion flame, energizing the solenoid valve between the detection of combustion flame; ignition detection element, arranged near the gas burner, outputs a flame detection signal when detecting the combustion flame; and an ignition detection circuit, the ignition detection element outputs the above Between the flame detection signals, a 0H signal is output to the switching element. The special feature is that the safety circuit is faked into two systems, the ignition instruction signal is provided with the operating power of both the holding circuit and the safety circuit, and the signal is passed through a thermal fuse. Input, and \ This paper size applies Chinese National Standard (CNS) Α.4 specifications (210 × 297 mm) (Please read the notes on the back before filling this page) Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A8 Βδ C8 D8 6. The scope of patent application The fire detection circuit should have Input into said flame detection signals to detect the ignition of two independent determination unit, the output signal of the signal Ο N determination unit and the feeding unit when both jointly detecting fire. 2. A combustion device with a suction coil that opens the valve body by energization and a holding coil that maintains the valve opening state by the energized energization scheme, and includes: a solenoid valve that is arranged to supply gas to the gas burner In the gas supply path; the heat exchange water path has a heat exchange section heated by the gas burner; a water flow switch, one end side is connected to the battery, and the contact is closed when the water flow through the heat exchange water path is detected; 篥1 switching element is electrically connected between the attraction coil and the battery; second and third switching elements are electrically connected in series between the holding coil and the other side of the water flow switch; suction timer circuit is electrically connected Connected to the other end of the water flow switch, when the operation power is supplied, the ON signal is output to the first switching element within a predetermined time; the ignition circuit starts the ignition operation according to the ignition instruction; the fire detection element is provided for Output a flame detection signal when a combustion flame is detected near the gas burner; and the first and second flame detection circuits, Between the fire detection element outputting the flame detection signal, a 0 2 signal is output to the second and third development elements. -2- This paper size is applicable to Chinese National Standard (CNS) A4 (210 X 297 mm) Packing I: Order ^ Line (Please read the precautions for backing before filling this page)