JPS63217135A - Safety device of open type burner - Google Patents

Abstract

PURPOSE:To light or ring an alarm device or extinguish fire by a solenoid at the time of oxygen deficiency by providing a thermal deformation element within a combustion cylinder, and also providing an interlocking member actuating a switch being connected to a solenoid or an alarm device so as to respond to the thermal deformation element and an engaging element for engaging the interlocking member. CONSTITUTION:In the case of oxygen deficiency, the temperature at a position (in the vicinity of the inside of a combustion cylinder 4) where the temperature fluctuation appears more remarkably than the temperature at the time of normal combustion, displaces a thermal deformation element (such as a bimetal 5) provided within an inner flame cylinder 25. By this displacement force of the bimetal 5, and interlocking member 8 is moved by an interlocking member operating in linkage with a switch 6 by the force exerted by the displacement force of the bimetal 5 to operate the switch 6 and light or ring an alarm device 29 at the time of oxygen deficiency. That is, the interlocking member is disconnected from an engaging part by the displacement force of the bimetal 5, and a switch 6 is turned on by the force of a spring 10, and an alarm device 29 is lit or rung, or fire is extinguished by a solenoid 30.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a safety device for an open type combustor that uses an alarm to issue a warning in the event of abnormal combustion such as when there is a lack of oxygen in the room.

Conventional technology Conventionally, open type combustors such as kerosene heaters are open indoors, so the oxygen concentration in the room decreases due to combustion exhaust residue, leading to a risk of oxygen deficiency. 1. As a safety device for abnormal combustion due to lack of oxygen in an open type combustor such as a kerosene stove, there is an oxygen deficiency detection sensor installed on the exterior above the combustion cylinder, for example, as disclosed in Japanese Patent Application Laid-Open No. 58-99620. A device has been disclosed that detects the oxygen deficiency by using a control circuit that activates an alarm means or combustion stop means based on the output from the oxygen deficiency detection sensor to issue an alarm or extinguish the fire.

Problems to be Solved by the Invention Since the oxygen deficiency detection sensor is installed on the exterior above the combustion cylinder, there is a problem in that it cannot properly detect the temperature of the flame during oxygen deficiency abnormal combustion.

On the other hand, when normally extinguishing a fire, the temperature of the detection part equipped with a heat deformable element gradually decreases during the complete extinguishment, as in the case of oxygen deficiency, the oxygen deficiency detection device is activated, the switch is activated, and the Even when the fire was extinguished, there were problems such as the oxygen deficiency alarm turning on or sounding or the solenoid being used to extinguish the fire.

In addition, when the core is heavily fired, the temperature of the detection part equipped with a heat deformation element gradually decreases until the dry firing is completely completed, as in the case of oxygen deficiency, and the oxygen deficiency alarm lights or sounds or a solenoid is activated. There was a problem with extinguishing the fire.

Means for Solving the Problems The present invention provides a heat deformable element that senses temperature changes during indoor oxygen depletion and displaces the core guide tube that guides the core and the combustion tube that is mounted on the core outer tube. An interlocking body that operates a switch connected to a solenoid or an alarm in response to the heat deformation element is provided, and a locking part for locking the interlocking body is installed near the heat deformation element. .

Function: When an oxygen-deficient state occurs, the temperature at a place where the temperature changes significantly compared to the temperature during normal combustion (for example, near the inside of the combustion cylinder) is changed by a thermal deformation element (for example, bimetal, etc.). :Using the deflection force of the heat deformable element, the interlocking body linked to the switch is moved to operate the switch, which lights up or sounds an alarm when oxygen is deficient. That is, the interlocking body is removed from the blocking part by the deflection force of the bimetal, the switch is turned on by the spring force, and the alarm is turned on or sounds, or the fire is extinguished by using a solenoid.

In addition, since the structure is such that the interlocking body is moved by the heat deformation element while the temperature is decreasing, conversely, even when the temperature is rising, such as during ignition, the interlocking body is moved by the heat deformation element. When it hit, the tip of the bimetal bent and overcame the interlocking body. For this reason, there is a risk that the bimetal may deform, so the door opens freely in the direction in which the bimetal shifts due to temperature rise, but does not open in the opposite direction.In other words, the door opens in one direction. By providing it at the tip, even when the bimetal comes into contact with the interlocking body during the initial temperature rise, the one-way opening 1~2 will open, allowing the bimetal to smoothly overcome the interlocking body.

Also, when setting the interlocking body to the stop section of the kite board, a pressure 1d spring is used to push up the interlocking body and simultaneously rotate the interlocking body toward the stop section, and a rotational force in the direction of the stop section is applied to this spring. By additionally providing the interlocking body, the interlocking body can be rotated in the direction of the stop portion and set in the stop portion simply by pushing the interlocking body upward.

heaven example An embodiment of the present invention will be described with reference to the drawings.

In the figure, l is a wick that sucks liquid fuel from the tank and evaporates it. The core 1 is held by a core guide tube 2 on the inside and a core outer tube 3 on the outside. Core guide tube 2 and core outer tube 3
There are four combustion tubes installed at the north end of the tower.

Inside the inner flame tube 25 of the combustion tube 4 or between the outer flame tube 26 and the outer tube 27, there is a thermal deformation element 5 (described here using a bimetal) or an interlocking body 8 which is interlocked with a switch 6. It is provided so that it touches one end. This interlocking body 8 is provided with a spring 10 that urges and compresses it downward (the same effect can be obtained even with its own weight), and the force of this spring 10 acts to push down the interlocking body 8. A switch 6 is provided at the lower end of the interlocking body 8 via an operating frame 9.

This switch 6 is directly connected to the power supply 28 and alarm! ! ! 1! A container 29 or a solenoid 30 is provided.

The tip of the interlocking body 8 has an inverted shape so that it is set in the stopper 13 when the oxygen deficiency detection device is set. The upper end of a compressing spring 10 provided on the interlocking body 8 is fixed to the kite tube 22, and the lower end is attached to the interlocking body 8.
It is fixed.

The compressing spring 10 is twisted and set so as to rotate the tip of the interlocking body 8 in the direction of the stop portion 13.

Also, at the tip of the bimetal 5 that is in contact with the interlocking body 8, a door 12 that opens one way is provided via a shaft 23, and with the shaft 23 as a fulcrum, this door 1 opens in the direction of deviation when the temperature rises.
2. It is designed to open freely and close in the opposite direction as the temperature decreases.

Further, a lock lever 14 is provided at the lower end of the interlocking body 8 via an operating frame 9, and a normal fire extinguishing lock lever 15 is provided at the other end of this opening lever 14. is configured to rotate via a shaft 16, and an operating knob 17 is provided at the other end.

The shaft 16 is also provided with a lever (not shown) for moving the core 1 up and down.

Further, a heavy lock knob 18 is provided at the other end of the lock lever 14 provided at the lower end of the interlocking body 8.

This heavy-burning lock knob 18 is provided with a shaft that is guided as a fulcrum 20 in a slit 21 formed in the heavy-burning rotter guide 9.

In addition, the heavy fire lock knob 18 is pushed back by a normal fire extinguishing lock lever 15 which is interlocked with the operating knob 17, and the heavy fire lock knob 18 is automatically released from the set.

The operation of the above configuration will be explained next.

During steady combustion, the temperature inside the inner flame tube 25 of the combustion tube 4 or between the outer flame tube 26 and the outer tube 27 is maintained at a temperature < Tt as shown in FIG. 2, or if an oxygen deficiency state occurs. Due to the lack of oxygen in the combustion air, the combustion reaction near the tip of the wick 1 slows down, the temperature at which the reaction occurs drops, and the amount of combustion decreases.

Therefore, the temperature inside the inner flame tube 25 of the combustion tube 4 or between the outer flame tube 26 and the outer tube 27 decreases as shown at T2. Here, by utilizing this temperature change, the inner flame tube 2 of the combustion tube 4 is
5 (between the outer flame tube 26 and the outer tube 27) is deflected, and the deflection force of the bimetal 5 is utilized when an oxygen shortage occurs.

As shown in FIG. 3, when the interlocking body 8 having an inverted shape at its tip is rotated in the direction of the arrow by the deflection force of the bimetal 5, the interlocking body 8 with the inverted shape is detached from the insulating part 13 and the spring 10
It is lowered by force or its own weight, and a switch 6 provided at the lower end of the interlocking body 8 is activated, causing the alarm 29 to light or sound, or the solenoid 30 to extinguish the fire.

Here, when the temperature is rising, even if the one-way opening door 12 provided at the tip of the bimetal 5 hits the interlocking body 8, the door 12 opens, so that the interlocking body 8 can be climbed over without difficulty.

Next, when setting the anti-seismic automatic fire extinguishing system in case of oxygen deficiency, when the interlocking body 8 is pushed up by the lock lever 14, the reversely shaped tip of the interlocking body 8 is automatically compressed by the rotational force of the spring 10. Rotates in the direction of the stopper 13, and the stopper 13
Can be set to .

Further, a lock lever 14 is provided at the lower part of the interlocking body 8, and the other end of the lock lever 14 is normally connected to a fire extinguishing lock lever 15 or a shaft 16 so as to rotate when an operating knob 17 is raised in the extinguishing direction. When normally extinguishing a fire,
When the operation knob 17 is pushed up, the normal fire extinguishing lock lever is
15, the interlocking body 8 is pushed up via the lock lever 14.

Even if the temperature drops during normal fire extinguishing, the oxygen deficiency detection device can be locked to prevent it from operating.

Further, a lock lever 14 is provided at the lower part of the interlocking body 8, and a heavy lock knob 18 provided at the other end of the lock lever 14 is used to move the lock lever 14 in the direction of the arrow through the slit 21 of the heavy lock guide 19. If it is set along the axis, the interlocking body 8 will be pushed up via the lock lever 14, and even if the temperature drops when the cylinder is empty, the oxygen deficiency detection device will not operate, allowing complete heavy firing.

In addition, even if you forget to release the heavy burnout lock knob 18 after heavy burning is completed, you can lower the wick l using the operating knob 17 and use the normal fire extinguishing lock lever 15 that is linked to this, or move in the direction of the arrow with the shaft I6 as the fulcrum. It is possible to rotate it and push back the set heavy-duty lock knob 18 to remove it dynamically.

Effects of the Invention As described above, according to the present invention, when an open type combustor such as a petroleum stone is used, the interlocking body can be removed from the stopper part by the biasing force of the bimetal in an oxygen-deficient state in the room that is considered to be dangerous. A switch is actuated by the force of a spring installed in the body, and an alarm or solenoid is used to quickly and appropriately warn of oxygen deficiency or extinguish the fire.

Moreover, even when igniting, the bimetal or the interlocking body is not bent, and the interlocking body can be smoothly overcome by one-way opening.

In addition, when setting the fire extinguishing system in case of oxygen deficiency, the interlocking body should be set with a lock lever.
By simply pushing up the interlocking body, the reversely shaped tip of the interlocking body can be rotated toward the stop by the rotational force of the spring and set in the stop.

In addition, when normally extinguishing a fire, the oxygen deficiency detection device can be automatically locked by simply raising the operating knob in the direction of extinguishing by pushing up the lock lever or interlocking body, and the oxygen deficiency detection device will not operate during normal extinguishing.

In addition, when the core is heavily burned, by setting the empty position lock knob, the lock lever or interlocking body is pushed up and the oxygen deficiency detection device d is activated.
By fixing it firmly and making it inoperable, it is possible to perform dry firing completely.

Other operation knobs that can be used even if you forget to release the heavy burn lock knob
By lowering the wick with 17, the dry fire lock knob can be automatically released using the normal fire extinguishing lock lever, which is useful.

[Brief Description of the Drawings] Fig. 1 is a side cross-sectional view of a main part of a safety device of an open type combustor according to an embodiment of the present invention, and Fig. 2 is a side sectional view of a main part of a safety device of an open type combustor according to an embodiment of the present invention. FIGS. 3 and 4 are perspective views of essential parts of a safety device for an open type combustor according to an embodiment of the present invention. 1... Core, 2... Core guide cylinder, 3...
・Core outer cylinder, 4... Combustion tube, 5... Heat deformation element, 6... Switch, 8... Interlocking body,
IO...Spring, 13...Locking part, 29...
・Alarm device. 30...Solenoid.

Claims (1)

[Claims] 1) A core guide tube (2) and a core outer tube (3) that guide the core (1).
) A heat deformation element (5) that senses temperature changes during indoor oxygen depletion and displaces is provided in the combustion tube (4) placed in the combustion tube (4), and a solenoid (30) or An interlocking body (8) that operates a switch (6) connected to an alarm (29) is provided, and a locking part (13) that locks the interlocking body (8) is connected to the heat deformable element (5). A safety device for open type combustors that is characterized by being installed nearby. 2) The safety device for an open type combustor according to claim 1, wherein the interlocking body (8) is provided with a spring (10) or a weight that urges the interlocking body (8) downward. 3) A patent in which the upper end of the interlocking body (8) is shaped like an inverted L, and the interlocking body (8) is provided with a spring (10) that moves the interlocking body (8) toward the locking portion (13). A safety device for an open type combustor according to claim 1.