JPS6226689Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a vaporization type combustor that pumps kerosene into a vaporizer using an electromagnetic pump, preheats it to vaporization using a heater attached to the vaporizer, and then burns it in a jet manner. It is.

[Conventional technology and problems]

Conventionally, this type of closed type vaporizing combustor was
As shown in Publication No. 52-50039, an electromagnetic jet valve SSV for spouting kerosene gas opens its spout port when energized, and for example, at the time of energization, the temperature of the vaporizer reaches the vaporization temperature of kerosene. is set when reached.

Therefore, during combustion, the electromagnetic injection valve SSV is constantly energized, which poses a problem in terms of functionality, such as failures due to rise in coil temperature, etc., and problems in terms of cost and power consumption. Furthermore, when the flame is extinguished from stable combustion and then ignited again, the spout of the electromagnetic spout valve SSV opens immediately. For this reason, even during pre-purging, there was a drawback that gas due to residual heat was ejected from the ejection port of the electromagnetic ejection valve SSV.

Furthermore, the conventional vaporization type combustor is
As shown in the publication, a fire extinguishing solenoid valve SV is installed to remove kerosene gas from the vaporizer when extinguishing a fire, but since this solenoid valve is designed to close its valve port when energized, is always energized. Therefore, the fire extinguishing solenoid valve SV, like the above-mentioned solenoid jet valve SSV, had problems in terms of failure and power consumption.
Therefore, the purpose of the present invention is to energize the electromagnetic jet valve SSV and the fire extinguishing electromagnetic valve SV for only a certain period of time to ensure ignition and extinguishment, thereby achieving power saving.

[Means for solving problems]

This invention consists of an electromagnetic pump MP4 that sucks up kerosene from a kerosene tank and pumps it to a vaporizer, an electromagnetic pump MP4 that sucks up kerosene under pressure and pumps it to the vaporizer, and a vaporizer 2 equipped with a heater that preheats and vaporizes the pumped kerosene. , an electromagnetic jetting valve SSV that spouts out vaporized kerosene gas, and a fire extinguishing solenoid valve SV that extracts kerosene and kerosene gas from the vaporizer from between the electromagnetic pump MP and the vaporizer and sends them to the kerosene tank when extinguishing a fire. In a vaporization type combustor that includes a control circuit, the electromagnetic jet valve SSV is of a type that closes its spout when energized and opens when de-energized, and the solenoid extinguishing solenoid spout valve SV opens when energized and closes when de-energized. In addition, the control circuit includes a circuit that temporarily energizes the solenoid jet valve SSV when igniting, a circuit that temporarily energizes the extinguishing solenoid valve SV when extinguishing the fire, and a discharge circuit that temporarily energizes the solenoid valve SV during a power outage. Provided for.

〔Example〕

The structure and its control circuit will be explained below with reference to FIGS. 1 to 3 showing an embodiment.

First, referring to FIGS. 1 and 2 showing the structure, 1 is an electromagnetic injection valve SSV, and its vaporizing pipe 11
communicates with a vaporizer 2 incorporating an electric heater HE to be described later, and its jet port 12 is opened and closed by a needle bar 14 fixed to a movable body 13. The movable body 13 is a solenoid 15
When the solenoid 15 is not energized, the needle bar 14 is in the state shown in FIG. Ru. Reference numeral 3 denotes a kerosene tank, which maintains a constant oil level, and is penetrated by an inlet pipe 5 of an electromagnetic pump MP4 and an outlet pipe 7 of a fire extinguishing solenoid valve SV6.
The vaporizer 2 also communicates with an outlet pipe 8 of the electromagnetic pump MP4 and an inlet pipe 9 of the fire extinguishing electromagnetic valve SV6. Here, a conventionally known electromagnetic pump MP4 is installed, and a fire extinguishing electromagnetic valve SV6 is installed in which the movable body 61 is attracted to the suction plate 62 when energized, the valve port 63 opens, and conversely closes when not energized. Note that the fire extinguishing solenoid valve SV6 shown in FIG. 2 is in a energized state. 10 is a burner and its inlet part 1
01 is opposed to the spout 12 of the electromagnetic spout valve SSV1, and the kerosene gas is sent from the inlet part 101 through the mixing part 102 to the flame port 103, and is ignited by the discharge of the igniter IGN20 arranged near the flame spout 103. do. Further, the burner 10 and the electromagnetic jet valve SSV1 are arranged in, for example, a closed combustion chamber (not shown), and combustion air is supplied to the combustion chamber from a combustion blower BM30, which will be described later.

The control circuit of the above structure will be explained below with reference to FIG. 3. 31 is an AC power supply, and a transformer T
A diode double-wave rectifier RD is connected to the secondary side of the circuit via a fuse fu ₂ , and a smoothing capacitor _c5 is connected to the DC output side of the diode double-wave rectifier RD. Also, at both ends of the smoothing capacitor _c5 (hereinafter referred to as the DC side power supply), there are anti-shock switch SWE - overheating prevention switch SWO - relay R self-holding switch r ₁ - on-delay timer TD operation open switch TD ₂ - relay S operation close switch
s ₂ - Operation closing switch of relay B b ₂ - A series circuit of relay R with associated resistor R ₂ and capacitor c ₂ is connected.

Also, the on-day delay timer TD operation open switch.
Frame relay FR operation close switch in parallel with TD ₂
fr is connected, and the operation close switch tf of the timer TF is connected in parallel to the operation close switch _b2 of relay B. Further, an open switch d1 of a relay D is connected in parallel to the series circuit of the close switch _s2 of the relay S and the close switch _b2 of the relay B, and the open switch _d1 of the relay D is connected to the series circuit of the close switch s2 of the relay S and the open switch _td2 of the on-delay timer TD. Operation open switch A ₂ of relay A is connected in parallel to the series connected circuit of
is connected. In addition, a reset switch RSW is connected in series to the relay R, and a wind pressure switch SWW, a resistor _R3 , and a capacitor are connected to the DC side power supply.
A series circuit of relay B with associated c ₃ is connected. TG is on-day delay timer and relay B
After closing the operation close switch b ₃ , for example, 10 seconds later, switch one of the switches tg ₁ from the NC contact side to the NO contact side, and at the same time switch the other operation close switch tg _2.
Close. TF is a timer, and after closing the operation close switch _s3 of relay S, its operation close switch TF
for example, for one minute. TD is an on-delay timer, and its open switches td ₁ and td ₂ are opened, for example, 20 seconds after the close switch tg ₂ of the on-delay timer TG is closed. TE is a timer, and after closing the operation open switch _a4 of relay A,
Close the operation close switches te ₁ and te ₂ for one minute. Here, the above on-day delay timer TG, timer
TF, on-delay timer TD, and timer TE are timers that use ICs, capacitors, and resistors. Also connected to the DC side power supply is a series circuit consisting of an ignition/extinguishing switch SW, an operation/closing switch _r2 of a relay R, and a relay A including a resistor _R4 and a capacitor _c4 . In addition, the ignition/extinguishing switch SW and relay R operation/closing switch
The DC side power supply via r ₂ includes a resistor R ₅ and a thermistor.
A bridge circuit of Th, resistor _R6 , resistor _R9 , and resistor _R10 is assembled, and a bridge circuit of resistor _R5 , thermistor Th, resistor _R6 , resistor _R7 , and resistor _R8 is assembled,
A differential amplifier OP ₁ and a differential amplifier OP ₂ are connected, respectively. Here, the thermistor Th is for converting the temperature of the vaporizer 2 into voltage. In addition, positive feedback resistors R ₁₂ and R ₁₁ are connected to the differential amplifiers OP ₁ and OP ₂ , and relays S and H are connected to the output terminals, respectively.
is connected. Note that the relay S is attached with a resistor R ₁₃ and a capacitor c ₈ , and the relay H is attached with a diode D ₅ for preventing back electromotive force.

The AC power supply 31 has a relay S operating close switch _S1 and a timer connected between the power supply line via a fuse _FU1 .
A series connection circuit of the parallel circuit of the TE operating close switch te ₁ and the parallel circuit of the combustion blower BM, the diode D ₄ , the relay D with the resistor R ₁ and the capacitor c ₁ is connected. In addition, for the above-mentioned electromagnetic jet valve SSV1, the operation close switch _a1 of relay A, the NC contact of timer switch _tg1 , and the operation close switch of relay B are connected.
A series circuit of b ₁ and diode D ₃ is connected, and an on-delay timer is connected to the NO contact of relay switch tg ₁ .
TD operation open switch TD ₁ and the igniter IGN 2
The series circuit of 0 and the parallel connection circuit of the electromagnetic pump MP4 are connected. Furthermore, in parallel to the electromagnetic pump MP4, a diode D ₇ - a resistor R ₁₄ - a capacitor
Connect c ₆ 18 series circuits. The fire extinguishing solenoid valve
For SV6, timer TE operation close switch te ₂
At the same time, connect the operation close switch of relay A.
a ₁ and timer switch tg ₁ NC contact and diode D ₁
is connected. Furthermore, a discharge circuit 50-1 consisting of the capacitor C ₆ 18, diode D ₆ and switch A ₃ of relay A is connected in parallel to the fire extinguishing solenoid valve SV6.

Also, a frame relay FR is connected between the above power lines.
, operation close switch h of relay H and electric heater HE
series connected circuits are connected.

Here, I will briefly explain each of the above relays.
The reset relay R is self-maintained by pressing the reset switch RSW when the power is turned on, during a power outage, or when an abnormality occurs, and the relay A is energized in response to the closing operation of the ignition/extinguishing switch SW. The relay S is energized when the temperature of the vaporizer 2 reaches a temperature sufficient to vaporize kerosene, for example, 260° C. or higher, and is de-energized when the temperature becomes 200° C. or lower. Relay H is set when the temperature of vaporizer 2 is, for example, 270℃.
It is repeatedly energized and de-energized in the range of 290℃, but of course
Power is applied even when the temperature is below 270℃. Relay B is energized when the temperature of the vaporizer 2 reaches a temperature sufficient to vaporize kerosene or during a post-persistent process (a process in which unburned gas is discharged after extinguishing a fire). frame relay
The FR is energized or de-energized depending on the output of a flame sensor (not shown), that is, the presence or absence of flame. As described later, the electromagnetic pump MP4 converts alternating current into direct current with a diode _D7 , and a smoothing capacitor _C7.
At 19, the smoothed power is applied.

Referring to the time chart shown in Fig. 6, the embodiment with the above configuration is configured so that when the power is turned on (for example, when the power plug is turned on or when the power outage is restored), the operation open switch of relay A is activated.
The timer TE is energized via a ₄ , which results in the combustion blower being energized via the operating close switch te ₁ .
BM30 is driven and relay D is energized. In addition, the fire extinguishing solenoid valve is connected via the other operating close switch TE ₂ .
After the SV6 is energized and the power outage is restored, for example, residual kerosene or kerosene gas in the vaporizer 2 returns to the kerosene tank 3 from the inlet pipe 9 of the solenoid valve SV6 through the outlet pipe 7.

The remaining kerosene gas in the vaporizer 2 is removed by an electromagnetic injection valve.
Almost no water is ejected from the ejection port 12 of the SSV 1 because the ejection port 12 has a small diameter.

In addition, the wind pressure switch SWW is closed in response to the wind pressure from the combustion blower BM30, and as a result, the relay B is energized, its operation close switch _B3 is closed, and the on-delay timer TG is energized, and the delay time (for example, 10 seconds) is energized. After that, close the operation close switch TG ₂ . In addition, when the operation close switch TG ₂ is closed, the on-delay timer TD is energized and the delay time (for example, 20
seconds) after which the operation open switch TD ₁ is opened, but
The on-day delay timers TG and TD operate using the electromagnetic pump MP4, igniter IGN20, and electromagnetic jet valve.
Does not affect the operation of SSV1. Note that the timer
Since TE opens its operating close switches te ₁ and te ₂ after a delay time (for example, 1 minute), relay D, combustion blower BM30, and fire extinguishing solenoid valve SV6 are de-energized, and with the combustion blower BM30 stopped, the wind pressure is reduced. Switch SWW is opened, relay B is de-energized, and as a result, on-delay timers TG and TD are also de-energized. If reset switch RSW is temporarily pressed at this time or when the power plug is turned on, power is supplied to relay R, and as a result, self-holding switch _r1 of relay R is closed, and relay R
is anti-shock switch SWE-overheat prevention switch SWO-
The self-holding switch _r1 is self-holding via the operation opening switch _a2 of relay A. In addition, since the operation close switch _r2 is closed due to the self-holding of the relay R, when the ignition/extinguishing switch SW is closed, the relay A is energized.At this time, if the resistance of the thermistor Th attached to the carburetor 2 is large, If the temperature of vaporizer 2 is not high enough to vaporize kerosene, the voltage at the positive terminal of differential amplifier OP ₂ is greater than the voltage at the negative terminal, so relay H is energized and its operation is closed. Heater via switch h
HE is energized. In addition, the fire extinguishing solenoid valve SV6 is the operation close switch _a1 of relay A - on-delay timer.
TG timer switch TG ₁ NC contact - diode
Electricity is applied through _D1 , the valve port 63 opens, and the kerosene and kerosene gas remaining in the vaporizer 2 are discharged.
In addition, when relay R is energized as described above, the anti-shock switch SWE - overheating prevention switch is activated.
SWO - self-holding switch r ₁ - on-delay timer TD operating open switch td ₂ - relay D operating open switch d ₁ is energized. When the heater HE is energized and the temperature of the vaporizer 2 reaches a temperature sufficient to vaporize kerosene (e.g. 260°C), the resistance value of the thermistor Th becomes small and the differential amplifier
The negative terminal of OP ₁ becomes smaller than the positive terminal and relay S is energized. As a result, relay S
Operation of the combustion blower BM3 via the close switch _S1
0 and relay D are energized, as a result of which wind pressure switch SWW is closed, relay B is energized, and timer TG is energized by its operating close switch _b3 . Therefore, in addition to the above-mentioned fire extinguishing solenoid valve SV6, the solenoid jetting valve SSV1 is used as the operating close switch a ₁ of relay A - the timer switch tg ₁ of on-delay timer TG - the NC contact of relay B operating close switch b ₁ - diode D ₃
As a result, the needle bar 14 fixed to the movable body 13 closes the spout 12 of the electromagnetic spout valve SSV1, and at this time removes tar etc. around the spout 12. Also, after relay S is energized, relay D opens its operation close switch d ₁ with a delay due to resistor R ₁ and capacitor c ₁ , so relay R operates as shock absorbing switch SWE - overheat protection switch SWO - self-holding switch r ₁ - operating close switch td of on-delay timer TD ₂ - operating close switch s of relay S ₂ - operating close switch b of relay B energized via ₂ or operating close switch tf of timer TF. If the on-delay timer TG is energized for, for example, 10 seconds after the operation close switch _b3 of relay B is closed, that timer switch _tg1
switches from NC contact to NO contact and electromagnetic pump MP
4 is energized, igniter IGN20 is energized, and capacitor C ₆ 18 is connected to diode D ₇ and resistor.
Charging starts via _R14 . On the other hand, solenoid injection valve
SSV1 is de-energized and opens its spout 12, and fire extinguishing solenoid valve SV6 is also de-energized and valve port 6 is de-energized.
3 closes.

As a result, the kerosene in the kerosene tank 3 is pumped by the electromagnetic pump MP4.
The liquid is fed under pressure to the vaporizer 2, preheated and vaporized by the heater HE attached to the vaporizer 2, and ejected from the ejection port 12 of the electromagnetic ejection valve SSV1. Furthermore, by blowing out kerosene gas, combustion air is transferred to the mixing section 10 of the burner 10.
2, and after sufficiently mixing with kerosene gas, it is ejected from the flame port 103. Therefore, the mixed gas is ignited by the spark of the igniter IGN20 installed near the flame port 103, but the energization time of the igniter IGN20 is the delay time of the on-delay timer TD (for example, 20 seconds), and after the delay time elapses, the mixed gas is turned on. The operation open switch _TD1 of the delay timer TD is opened, and the igniter IGN20 is de-energized. When the mixed gas is ignited, the flame relay FR is energized, and the relay R is an anti-shock switch SWE - overheating prevention switch SWO - self-holding switch r ₁ - flame relay FR operation close switch fr - relay S operation close switch s ₂ - energized via the operating close switch _b2 of relay B or via the operating close switch tf of timer TF; Note that relay R will be de-energized if ignition cannot be detected by flame relay FR because the operation open switch _td2 will open, for example, 30 seconds after relay B is energized. Furthermore, after relay S is energized,
Its operating close switch _s3 energizes timer TF,
For example, if the wind pressure switch SWW does not turn on while the switch TF is closed for one minute, or the blower BM
When relay B is released by locking 30 or the like, relay R is de-energized.

When combustion occurs normally and the temperature of the carburetor 2 reaches the upper limit of the temperature control range, for example 290°C, the resistance of the thermistor Th decreases, the negative terminal voltage of the differential amplifier OP ₂ increases, and the relay H
becomes de-energized. As a result, the temperature of the vaporizer 2 decreases, and when it reaches the lower limit of the temperature control range, for example 270°C, the relay H is energized again, and the kerosene pumped from the electromagnetic pump MP4 is vaporized by intermittent operation of the heater HE. .

Also, when the ignition/extinguishing switch SW is opened, relay H, relay A, and relay S are de-energized, and as a result, the heater HE is de-energized, and the electromagnetic pump MP4 is de-energized.
also stops, combustion stops, and the flame relay FR becomes de-energized. In addition, when the relay A is de-energized, the timer TE is activated, and its operating close switch te ₂ energizes the fire extinguishing solenoid valve SV6, which opens the valve port 63, and the kerosene and kerosene gas remaining in the vaporizer 2 are discharged from the solenoid valve. S.V.
From the inlet side pipe 9 of 6 to the kerosene tank 3 via the outlet side pipe 7
The fire is extinguished instantly. In addition, kerosene gas leaking from the electromagnetic jet valve SSV1 and the flame port 103 of the burner 10 is discharged (post-purged) by the combustion blower BM30, which continues to operate when the operating close switch _te1 is closed. Note that the post-purge time and the discharge time of kerosene and kerosene gas by the fire extinguishing solenoid valve SV6 are determined by the operation close switches te ₁ and te ₂ of the timer TE.

In addition, when the ignition/extinguishing switch SW is opened and relay A becomes de-energized, relay R is activated via the anti-shock switch SWE - overheating prevention switch SWO - self-holding switch r ₁ - relay A operation opening switch a ₂ lines. energized, timer TE times up, its operation close switch te ₁ opens, and relay D closes.
When the relay R becomes de-energized, in addition to the above lines, the anti-shock switch SWE - the overheating prevention switch SWO - the self-holding switch r ₁ - the on-delay timer TD operation open switch td ₂ - the relay D operation open switch d ₁
Continue to energize through the line. Note that after the above-mentioned post-purge time, the wind pressure switch SWW is opened, relay B is de-energized, and on-delay timer TG and on-delay timer TD are also de-energized.

In addition, if the temperature of the vaporizer 2 is 260°C or higher when the ignition operation is performed again after the ignition/extinguishing switch SW is opened and the extinguishing operation is performed, the extinguishing solenoid valve SV6 is energized as shown in Fig. 7. relay S is energized, and as a result, the combustion blower
BM30 is operated, relay B is energized, and electromagnetic jet valve SSV1 is energized via its operating close switch _b1 , and jet port 12 is closed.The timer switch _tg1 determines the closing time of jet port 12. Since this is continued until the contact is switched to NO, no kerosene gas is spouted from the spout 12 during that time, and the gas is returned to the kerosene tank 3 by the extinguishing solenoid valve SV6. Furthermore, the kerosene gas ejected from the electromagnetic jet valve SSV1 during the fire extinguishing operation is instantly pre-purged by the operation of the combustion blower BM30. Therefore, when timer switch TG ₁ switches to NO contact, the igniter
Ignition operations can be performed safely using IGN, etc. Thereafter, combustion continues in the same manner as above.

If a power outage occurs, relay R, relay H,
Relay A, relay S, etc. are de-energized, and as a result, electromagnetic pump MP4, heater HE, etc. are de-energized, but since switch a ₃ of relay A closes the NC contact, the discharge current from capacitor c ₆ 18 stops the fire. The fuel flows to the solenoid valve SV6, which temporarily opens the valve port 61, discharges the residual kerosene and gas in the vaporizer 2, and instantly extinguishes the fire.

Figure 4 shows another embodiment, in which the combustion blower BM
A series circuit consisting of a diode D ₇ , a resistor R ₁₄ and a capacitor C ₆ 18 is connected in parallel to 30 .

Further, post-purging after extinguishing the fire and discharge of residual kerosene and gas in the vaporizer 2 are performed via the operation close switch te ₁ of the timer TE.

In the event of a power outage, the fire extinguishing solenoid valve SV6 is energized by the capacitor c ₆ 18 and relay A switch.
This is done via a discharge circuit 50-2 consisting of _a3 NC contacts.

FIG. 5 shows yet another embodiment, in which a series circuit consisting of switch _a3 of relay A and drive circuit 41 of electromagnetic pump MP4 is connected to both ends of smoothing capacitor _c719 . Further, the NC contact of the switch _a3 is connected to one terminal of the fire extinguishing solenoid valve SV6 via the diode _D6 , and the NO contact is connected to one terminal of the drive circuit 41.

Therefore, after the relay S is energized and the timer switch _tg1 is switched to the NO contact, the smoothing capacitor _c719 is charged and the electromagnetic pump
The drive circuit 41 of MP4 is energized and kerosene is supplied. When the ignition/extinguishing switch SW is opened, relay A etc. are de-energized, and the discharge current from the smoothing capacitor _C719 is transferred to the drive circuit 41 of the electromagnetic pump MP4.
Instead, it flows to the fire extinguishing solenoid valve _SV6 via the NC contact of relay switch _A3 and diode D6.
For this reason, smoothing capacitors had been a problem in the past.
The tailing phenomenon of the electromagnetic pump MP4 caused by c ₇ 19 disappears, and in the event of a power outage, the smoothing capacitor c ₇ 19 connects the fire extinguishing solenoid valve SV6 to the discharge circuit 50-3 consisting of the capacitor c ₇ 19 and the NC contact of relay switch a ₃ .
It is used to temporarily supply electricity through the

Therefore, in this embodiment, since there is no need to newly provide a capacitor, a low-cost vaporization type combustor can be provided.

[Effect of idea]

As mentioned above, the present invention is a type that closes the jet nozzle only when electricity is applied to the solenoid jet valve SSV, and after closing the jet nozzle of the solenoid jet valve SSV for a certain period of time before the start of combustion, the solenoid pump MP In addition, the fire extinguishing solenoid valve SV is of the type that opens only when energized to remove kerosene and its gas from the vaporizer when extinguishing a fire, and the fire extinguishing solenoid valve SV is of a type that opens only when energized. Because it is a vaporization type combustor, it is characterized by connecting a switch and a discharge circuit that close in response for a certain period of time, and opening the valve opening of the solenoid valve SV for a certain period of time by extinguishing operation or discharge of a capacitor. For example, the electromagnetic injection valve SSV is energized for a certain period of time after the temperature of the vaporizer reaches a temperature sufficient to vaporize kerosene.
Since the SSV spout is closed, pre-purge time is shortened, and tar adhering to the spout can be removed, limiting the energization time of the fire extinguishing solenoid valve SV, and even in the event of a power outage, the discharge circuit including a capacitor will extinguish the fire. Since the solenoid valve SV is energized, it has the effect of instantly extinguishing the fire.

[Brief explanation of drawings]

Fig. 1 is a schematic layout diagram of an embodiment of the present invention, Fig. 2 is a cutaway view of essential parts of an embodiment of the invention, Fig. 3 is a control circuit diagram of an embodiment of the invention, and Fig. 4 is another embodiment of the invention. FIG. 5 is a main control circuit diagram of still another embodiment of the present invention, FIG. 6 is a time diagram showing the operation of the control circuit, and FIG. 7 is similar to FIG. 4. It is a time diagram and is a diagram when the switch is turned on when the vaporizer temperature is high. 1... Solenoid injection valve SSV, 2... Carburizer, 4...
Electromagnetic pump MP, 6...Solenoid valve SV, 12...Spout port, 63...Valve port, HE...Heater.

Claims (1)

[Scope of utility model registration request] An electromagnetic pump MP that sucks up kerosene from a kerosene tank and pumps it to a vaporizer, a vaporizer equipped with a heater that preheats and vaporizes the pumped kerosene, an electromagnetic spout valve SSV that spouts vaporized kerosene gas, and the electromagnetic pump mentioned above.
Fire extinguishing solenoid valve SV that removes kerosene and kerosene gas from the vaporizer between the MP and the vaporizer and sends it to the kerosene tank during extinguishing.
And the above electromagnetic pump MP, vaporizer and electromagnetic jet valve
In a vaporization type combustor including a control circuit that controls SSV and a fire extinguishing solenoid valve SV, the solenoid jet valve SSV
is a type that closes the spout when energized and opens when de-energized, and the above-mentioned solenoid valve SV for fire extinguishing is of a type that opens when energized and closes when de-energized, and furthermore, a circuit that temporarily energizes the solenoid spout valve SSV when igniting. and a vaporization type combustor, characterized in that a control circuit is provided with a circuit that temporarily energizes the fire extinguishing solenoid valve SV when extinguishing a fire, and a discharge circuit that temporarily energizes the fire extinguishing solenoid valve SV during a power outage.