JPH0318843Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vaporization type combustor in which kerosene is forced into a vaporizer using an electromagnetic pump, preheated and vaporized by a heater attached to the vaporizer, and then ejected and combusted.

Conventionally, this type of closed type vaporizing combustor was
As shown in No. 52-50039, an electromagnetic jet valve for spouting kerosene gas opens its spout when energized, and for example, when the power is turned on, the temperature of the vaporizer reaches the vaporization temperature of kerosene. When set. Therefore, since the electromagnetic injection valve is constantly energized during combustion, there are functional problems such as malfunctions due to rise in coil temperature, etc., and there are problems in terms of cost and power consumption. It was hot.

Furthermore, the conventional vaporization type combustor is
As shown in the publication, a fire extinguishing solenoid valve is installed to remove kerosene gas from the vaporizer when extinguishing a fire, but this solenoid valve is designed to close its valve opening when energized, so it is constantly closed during combustion. It is energized. For this reason, the fire extinguishing solenoid valve, like the above-mentioned solenoid jet valve, has had problems in terms of failure and power consumption.

In order to solve the above problem, the applicant
In No. 55-162736 (Utility Application No. 54-60399),
We proposed a vaporizing combustor that can avoid power loss, prevent tar generation, and instantly extinguish fires.

In this vaporizing combustor, a silicon-controlled rectifier is connected to the extinguishing solenoid valve, and a capacitor is connected to the gate side of the silicon-controlled rectifier. Therefore, even if the switch is turned off when extinguishing a fire, the silicon-controlled rectifying element becomes conductive due to the discharge from the capacitor, and the extinguishing solenoid valve is operated to open, allowing unburned kerosene and kerosene gas to be returned to the fuel tank.

However, in this vaporizing type combustor, the solenoid valve opens only when the switch is turned to the extinguishing side, and in the event of a power outage, the drive current itself does not flow to the extinguishing solenoid valve, so the silicon-controlled rectifier is triggered. The problem is that it does not open even if it is opened.

The present invention was developed in view of the above-mentioned shortcomings of the conventional examples, and its purpose is to energize the solenoid jet valve or fire extinguishing solenoid valve for only a certain period of time to ensure ignition and extinguishment, thereby achieving power savings. Moreover, when a fire is extinguished or a power outage occurs, the kerosene and gas in the vaporizer are removed by closing the outlet of the electromagnetic injection valve and opening the valve of the electromagnetic valve for fire extinguishing.

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 1
1 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 the solenoid 1
When the solenoid 5 is not energized, the needle bar 14 is in the state shown in FIG. be done. 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, the electromagnetic pump MP4 is a conventionally known one, and the fire extinguishing electromagnetic valve SV6 is attached to the movable body 61 when energized.
is attracted to the suction plate 62, the valve port 63 opens,
Attach something that closes in reverse when the power is off. Note that the fire extinguishing solenoid valve SV6 shown in FIG. 2 is in a energized state. 10 burner, and its inlet portion 101 is opposed to the spout 12 of the electromagnetic jet valve SSV1,
Kerosene gas is sent from the inlet section 101 through the mixing section 102 to the flame nozzle 103, and is ignited by discharge from an igniter IGN20 disposed near the flame nozzle 103.
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-vibration switches SWE - overheating prevention switch SWO - self-holding switch for relay R ₁ - operation open switch for on-delay timer TD TD ₂ - operation for relay S. 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 operating close switch in parallel to 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.
Furthermore, 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 and the open switch _td2 of the on-delay timer TD. The operation open switch _a2 of relay A is connected in parallel to the series connected circuit of. A reset switch RSW is connected in series to the relay R, and a series circuit of a wind pressure switch SWW and a relay B including a resistor _R3 and a capacitor _C3 is connected to the DC power supply. T.G.
is an on-delay timer, which switches one of the switches tg ₁ from the NC contact side to the NO contact side after 10 seconds, for example, after closing the operation close switch b ₃ of relay B, and at the same time switches the other operation close switch tg ₂ . Close. TF is a timer, which closes the operation close switch tf for, for example, one minute after closing the operation close switch _s3 of the relay S. 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, it closes its operation close switches _te1 and _te2 for one minute. Here, the above-mentioned on-delay timer TG, timer TF, on-delay timer TD, and timer TE are timers that use an IC, a capacitor, and a resistor. 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 DC side power supply via the ignition/extinguishing switch SW and the operation/closing switch _R2 of the relay R has a resistor _R5 , a thermistor Th, and a resistor.
A bridge circuit consisting of a resistor R ₆ , a resistor R ₉ , and a resistor R ₁₀ and a bridge circuit consisting of a resistor R ₅ , a thermistor Th, a resistor R ₆ , a resistor R ₇ , and a resistor R ₈ are constructed, and a differential amplifier OP ₁ and a differential Amplifier OP ₂ is connected. Here, the thermistor Th is for converting the temperature of the vaporizer 2 into voltage. Also, the differential amplifier OP ₁ ,
Positive feedback resistors R ₁₂ and R ₁₁ are connected to OP ₂ , and relays S and H are connected to the output terminals, respectively.
Relay S is equipped with a resistor _R13 and capacitor _C8 , and relay H is equipped with a diode to prevent back electromotive force.
_D5 is attached.

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. Further, to the above-mentioned electromagnetic jet valve SSV1, a series circuit consisting of the NC contact of relay A's operating close switch a ₁ and timer switch tg ₁ , relay B's operating close switch b ₁ and diode D ₃ is connected, and the relay switch The NO contact of tg ₁ is connected to the operation open switch td ₁ of the on-day delay timer TD and the igniter IGN.
20 series circuits and the parallel connection circuit of the electromagnetic pump MP4 are connected. Further, a series _{circuit of a diode D7, a resistor R14, and a capacitor C618 is connected} in parallel to the electromagnetic pump MP4. For the fire extinguishing solenoid valve SV6, the timer TE operation close switch
Connect te ₂ and connect relay A's operation close switch a ₁ and timer switch tg ₁ 's NC contact and diode.
D ₁ is connected. Further, 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 electromagnetic jet valve SSV1.

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 270℃ and 290℃, for example.
It is repeatedly energized and de-energized within the range of 270℃.
Power is also applied in the following cases. Relay B is energized when the temperature of the vaporizer 2 reaches a temperature sufficient to vaporize kerosene or during a post purge process (a process for discharging unburned gas after extinguishing a fire). The flame relay FR is energized or de-energized depending on the output of a flame sensor (not shown), that is, the presence or absence of flame. A power source is applied to the electromagnetic pump MP4, which is obtained by converting alternating current into direct current with a diode _D7 and smoothing it with a smoothing capacitor _c719 , as will be described later.

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 (e.g. 20 seconds) is activated.
Later, the operation opening switch _TD1 is opened, but the operation of the on-delay timers TG and TD is controlled by the electromagnetic pump MT4, igniter IGN20, and electromagnetic jet valve SSV.
It does not affect the operation of 1. Note that timer TE closes its operation after a delay time (for example, 1 minute).
Relay D to open te ₁ and te ₂ , combustion blower BM
30 and fire extinguishing solenoid valve SV6 are de-energized, and with the combustion blower BM30 stopped, wind pressure switch SWW is opened and relay B is de-energized.
As a result, the on-delay timers TG and TD are also de-energized. If the reset switch RSW is temporarily pressed here or when the power plug is turned on, power is supplied to the relay R, which closes the self-holding switch _r1 of the relay R, and the relay R switches the anti-shock switch SWE-overheating. Prevention switch SWO - self-holding switch r ₁ - relay A operation opening switch a ₂
Self-maintained through . In addition, since the operation close switch _r2 is closed due to the self-holding of relay R, when the ignition/extinguishing switch SW is closed, relay A is energized, and at this time, the thermistor installed in the carburetor 2
If the resistance of Th is large, that is, 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 the relay H is energized and the heater HE is turned on via its operating close switch h.
is energized. In addition, the fire extinguishing solenoid valve SV6 is the operation close switch a ₁ of relay A - on-delay timer TG.
NC contact of timer switch tg ₁ - diode D ₁
, the valve port 63 opens, and the vaporizer 2
Drain any kerosene or kerosene gas remaining inside. In addition, when relay R is energized as described above, the anti-shock switch SWE and the overheat prevention switch SWO are activated.
−Self-holding switch r ₁ −On-delay timer TD
The relay D is energized through the operational open switch td ₂ of the relay D and the operational open switch d ₁ of the relay D. 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 OP ₁
The negative terminal of is smaller than the positive terminal,
Relay S is energized. As a result, the combustion blower BM30 and the relay D are energized via the operation close switch _s1 of the relay S, and as a result, the wind pressure switch is turned on.
SWW is closed, relay B is energized, and timer TG is energized by its operating close switch _b3 . Therefore, in addition to the fire extinguishing solenoid valve SV6, there is also a solenoid jet valve SSV1.
is energized through the operation closing switch A ₁ of relay A - the NC contact of the timer switch TG ₁ of the on-delay timer TG - the operation closing switch B ₁ of relay B - the diode D ₃ , and as a result, it is fixed to the movable body 13. The needle bar 14 closes the spout 12 of the electromagnetic spout valve SSV1,
At this time, tar, etc. around the spout 12 is removed. 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 - On-delay timer TD operation close switch td ₂ - Relay S operation close switch s ₂ - Relay B
It is energized via the operating close switch _b2 of the timer TF or the operating close switch TF of the timer TF. When the on-delay timer TG is energized for 10 seconds after closing the operation close switch _b3 of relay B, the timer switch _tg1 is
Switching from NC contact to NO contact electromagnetic pump MP4
is energized, the igniter IGN20 is energized, and the capacitor C ₆ 18 starts to be charged via the diode D ₇ and the resistor 14. On the other hand, solenoid injection valve
SSV1 becomes de-energized and opens its spout 12, and fire extinguishing solenoid valve SV6 also becomes de-energized, opening its spout 12.
3 closes.

As a result, kerosene is transferred to vaporizer 2 using electromagnetic pump MP4.
It is preheated and vaporized by the heater HE attached to the vaporizer 2, and then it is sent to the spout 12 of the electromagnetic spout valve SSV1.
erupts from. Furthermore, by blowing out kerosene gas, combustion air is sucked into the mixing part 102 of the burner 10, and after being sufficiently mixed with the kerosene gas,
It erupts from 3. Therefore, the mixed gas is ignited by the spark from 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 on-delay The operation open switch _TD1 of the timer TD is opened, and the igniter IGN20 is de-energized. Also, when the mixed gas is ignited, flame relay FR is energized, and relay R is the anti-shock switch SWE - overheating prevention switch.
SWO - Self-holding switch r ₁ - Frame relay FR
Operation close switch of fr-Relay S operation close switch
s ₂ - Relay B operating close switch b ₂ or timer
TF operation is energized via the close switch 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 the relay S is energized, the timer TF is energized by its operating close switch _s3 , and if the wind pressure switch SWW is not turned on while the switch TF is closed for one minute, or if the blower BM30 is locked, etc. When B is released, relay R is de-energized.

When combustion occurs normally and the temperature of the vaporizer 2 reaches the upper limit of the temperature control range, for example 290°C, the resistance of the thermistor Th decreases and the differential amplifier
The negative terminal voltage of OP ₂ becomes high and 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 MP
4 also stopped, combustion stopped, flame relay FR
becomes de-energized. Furthermore, at this time, the capacitor c ₆ 1
The charge stored in 8 causes capacitor c ₆ 1
8. Diode D ₆ and relay A switch A ₃
Since the discharge current flows to the electromagnetic injection valve SSV1 through the NC contact, the injection port 12 of the electromagnetic injection valve SSV1 is closed by the needle bar 14.

In addition, when relay A is de-energized, timer TE operates, and its operation close switch te ₂ closes the fire extinguishing solenoid valve SV.
6 is energized, the valve port 63 opens, and the kerosene or kerosene gas remaining 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, so extinguishing is instantaneous. It is carried out in a regular manner. Also, when this kerosene or kerosene gas is returned, the spout 12 of the electromagnetic spout valve SSV1 is closed by the energy of the capacitor C ₆ 18, so of course no unburned gas is released.
A small amount of kerosene gas released when te 2 is opened is discharged (post-purged) by the combustion blower BM30, which continues to operate when the operating close switch te ₁ is closed. In addition, post purge time and fire extinguishing solenoid valve SV
The time for discharging kerosene or kerosene gas according to step 6 is determined by the timer TE.
The operation is defined by the closing switches te ₁ and te ₂ .

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.
Therefore, when timer switch TG ₁ switches to NO contact, ignition operation can be performed safely using igniter 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 _a3 of relay A closes the NC contact, the discharge current from capacitor _c618 is It flows to the spout valve SSV1 and temporarily closes its spout 12, thereby temporarily suppressing the discharge of residual kerosene and gas in the vaporizer 2 and extinguishing the fire.

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

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. To energize the electromagnetic blowout valve SSV1 during fire extinguishing or power outage, capacitor C ₆ 18, diode D ₆ and relay A are used.
Discharge circuit 50- consisting of switch a ₃ NC contacts
2.

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 the - terminal of the electromagnetic jet valve SSV1 via the diode _D6 , and the NO contact is connected to the - terminal of the drive circuit 41.

Therefore, when the timer switch _tg1 switches to the NO contact after the relay S is energized, the smoothing capacitor _C719 is charged, the drive circuit 41 of the electromagnetic pump MP4 is energized, and kerosene is supplied. Ru. 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 4 of the electromagnetic pump MP4.
1, but instead flows to the electromagnetic squirt valve SSV1 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 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 electromagnetic jet valve SSV1 via a discharge circuit 50-3 consisting of capacitor c ₇ 19 and the NC contact of relay switch a ₃ . It is used to temporarily turn on electricity.

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

As shown in Figures 3, 4, and 5, the configuration was such that connections were made between the diode D2 and the fire extinguishing solenoid valve SV6, and between the diode D3 and the solenoid blowout valve SSV1, so that a power outage occurred. In case, the discharge flow caused by the capacitor is caused by the electromagnetic jet valve.
Flows to SSV1 and fire extinguishing solenoid valve SV6. With this configuration, in the event of a power outage, the spout 12 is temporarily closed and the kerosene and kerosene gas are returned to the kerosene tank 3 through the fire extinguishing solenoid valve SV6.
This will further reduce the release of unburned gas when extinguishing a fire due to a power outage.

As explained above, the vaporizing combustor of the present invention includes an electromagnetic pump that pumps the kerosene in the kerosene tank, a vaporizer that vaporizes the pumped kerosene into kerosene gas,
A heater that preheats the vaporizer, an electromagnetic jet valve that spouts kerosene gas from the nozzle and closes the nozzle only when energized, a burner that burns the jetted kerosene gas, and a bypass that leads to the kerosene tank. a fire extinguishing solenoid valve that opens its valve port only when energized; a discharge circuit that includes one capacitor that is energized when energized and is connected to the solenoid blowout valve and the fire extinguishing solenoid valve;
and a switch that closes the discharge circuit in the event of a fire extinguishment or power outage and operates both the solenoid valves using the discharge current of the one capacitor, thereby shortening the energization time of the solenoid jet valve and the fire extinguishing solenoid valve. In addition to saving power when extinguishing a fire or power outage, the electromagnetic blowout valve closes using the discharge circuit to prevent the release of unburned gas, and the fire extinguishing solenoid valve opens to collect unburned gas and kerosene into the kerosene tank. Since the circuit is operated using the discharge current of one capacitor, the circuit configuration is simplified and the operation is accurate.

[Brief explanation of the drawing]

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...
...Solenoid pump MP, 6...Solenoid valve for fire extinguishing SV, 1
2...Spout port, 63...Valve port, HE...Heater.

Claims (1)

[Scope of claim for utility model registration] (1) An electromagnetic pump that pumps kerosene in a kerosene tank, a vaporizer that vaporizes the pumped kerosene into kerosene gas, a heater that preheats the vaporizer, and a jet of kerosene gas. An electromagnetic spout valve that closes the spout only when energized by ejecting it from the outlet, a burner that burns the blown kerosene gas, and a fire extinguishing solenoid valve that is installed in the bypass leading to the kerosene tank and opens the valve only when energized. a discharge circuit that includes one capacitor that is charged when energized and is connected to the electromagnetic blowout valve and the fire extinguishing electromagnetic valve, and when the fire is extinguished or a power outage occurs, the discharge circuit is closed and the discharge current of the one capacitor is used to discharge both the electromagnetic valves. A vaporizing combustor that has a switch that operates a solenoid valve. (2) The vaporizing combustor according to claim 1, wherein the capacitor is a smoothing capacitor connected to an electromagnetic pump.