JPS625555Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a combustion device equipped with an earthquake-resistant fire extinguishing device, and provides a safety device that can cope with situations such as oxygen deficiency in oil-burning equipment such as oil stoves. Conventionally, in combustors such as oil stoves that are composed of multiple cylinders with many pores (so-called multi-tube combustors), the inner and outer flame cylinders are red-hot and high in temperature, so even if there is a slight lack of oxygen, the flame will not ignite. is stable and is retained in the pores and continues to burn even under low oxygen conditions. However, since the flame stretches, from a certain concentration to a large amount
It was said that the danger was high in airtight rooms that emitted CO. However, as a result of our oxygen deficiency test,
In this combustor, due to lack of oxygen, the flame attached to the pores of the inner and outer flame tubes starts lifting from the lower pores and moves to the upper pores for combustion, so there is little rapid flame growth and overall flame retention is low. It was discovered that it is so strong that it continues to burn even under low oxygen concentrations. On the other hand, the flame gradually spreads upward and hits some parts of the equipment, producing CO. It was found that during this process, the flame in the pores moved upward one by one, so the red heat at the bottom of the inner and outer flame tubes rapidly decreased due to the lack of oxygen, and the temperature also decreased. As a result, we discovered the possibility of detecting oxygen deficiency even in multiple combustors.

For example, kerosene stoves and the like have traditionally been equipped with earthquake-resistant fire extinguishing equipment, but the reality is that these are only used for earthquake-resistant fire extinguishing.

Therefore, the present invention attempts to increase its added value by providing a configuration that allows this to operate even in the event of oxygen deficiency. An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, A is a vibration detection unit of an earthquake-resistant fire extinguishing system. In this embodiment, a pendulum type example is shown, and is composed of a pendulum 1, its fulcrum 2, a receiver 3 for receiving a displacement rod 4, a spring receiver 6, and a spring 5. The movement of the pendulum 1 caused by vibrations such as an earthquake is converted into the vertical movement of the displacement rod 4, thereby activating a fire extinguishing system (not shown).

B is a drive unit that operates in response to abnormal combustion such as oxygen deficiency, 8 is a coil, and 7 is a fixed electromagnetic core around which the coil 8 is wound. 9 is a movable iron core, which is integrated with the operating rod 10. 12 is the spring, 11 is the operating rod 1
It is a spring receiver fixed at 0. One end of the coil 8 is grounded to the main body, and the other end is connected to a thermocouple 13 as temperature detection means and receives a thermoelectromotive force. C is a multi-tube type combustion part, which includes an inner flame tube 14 and an outer flame tube 15 having many pores, a combustion tube N consisting of an outer flame tube 17 with no pores, and a fire pan 18 on which this combustion tube N is placed. Outer core tube 19 and inner core tube 20 with
and a lamp wick 21 that sucks up oil.

Note that 16 indicates the flame formed in the pores of the inner and outer flame tubes 14 and 15. The thermocouple 13 above is
It is inserted so as not to touch the outer flame tubes 14 and 15, and is positioned almost near the lower ends of the inner and outer flame tubes 14 and 15.

In the above configuration, the operating rod 10 is manually moved by the spring 1.
2, the movable core 9 is pressed against the fixed electromagnetic core 7 and held, and the lamp wick 21 is ignited in this state. Then, the thermocouple 13 is heated by the flame 16 and the radiant heat from the inner and outer flame tubes 14 and 15 and generates an electromotive force, which is transmitted to the coil 8 to excite the fixed electromagnetic core 7, which causes the movable core 9 to 1 and hold the operating rod 10 as shown in FIG. In addition, at this time, the above-mentioned arbitrary retention is canceled. The conventional combustion use then takes place. By the way, when an oxygen deficiency situation occurs and the oxygen concentration in the chamber decreases, the flame 16 sequentially lifts upward along the pores between the inner and outer flame tubes 14 and 15, and finally the flame rises upward. Inner/outer flame tube 14, 15
Combustion occurs in the coil (not shown) and net (not shown) installed above the fuel cell, producing a large amount of CO. By the way, as the flames in the inner and outer flame tubes 14 and 15 lift and move upward, the inner and outer flame tubes 14 and 15 move upward.
Since the temperature near the lower end between 15 and 15 decreases, thermocouple 1
The electromotive force 3 decreases, and below a certain value (which can be adjusted by the circuit resistance), the force of the spring 12 becomes an exciting force, and the operating rod 10 is pulled back to the left in Figure 1, causing the upper end of the pendulum 1 to move as shown in Figure 2. The pendulum 1 is moved by pushing the button, thereby removing the displacement rod 4, activating the earthquake-resistant fire extinguishing system, and immediately extinguishing the fire. In addition, in the case of returning, the ignition operation can only be performed after the pendulum 1 is returned and the operating rod 10 is pressed.

Furthermore, the seismic safety operation remains the same as before, but the above-mentioned operation is added when returning to normal operation.

Incidentally, as a method for detecting combustion changes, that is, oxygen deficiency, changes in the red-hot state of the inner and outer flame tubes 14 and 15 or changes in the presence of flame near the wick 21 may be detected. You can select the appropriate position and method.

As is clear from the above description, the present invention has the following effects.

That is, the present invention is equipped with an inner/outer flame cylinder and an outer cylinder, and a temperature detection means is provided at the lower part between the inner and outer flame cylinders to detect an oxygen deficiency state by detecting the temperature of the lower part. A temperature detection means detects an oxygen deficiency state, and the detection signal drives a drive unit consisting of an operating rod integrated with a fixed electromagnetic core and a movable core to activate an earthquake-resistant fire extinguishing system to extinguish the fire in the event of an oxygen deficiency. Because the process is carried out, oxygen deficiency does not develop, making it extremely safe. In addition, although the inner and outer flame cylinders form many small flames, the temperature detection means of the present invention does not detect fluctuations in individual flames, but rather detects fluctuations in the flames as a whole, which is noticeable when oxygen is deficient. This method detects the temperature drop in the lower part between the inner and outer flame tubes that appears in It eliminates malfunctions that occur when the flame port and temperature detection means are not in the correct position due to slight assembly misalignment, and is more reliable in this respect as well, eliminating the trouble of having to suddenly extinguish the flame and relight it during steady combustion. Since it uses an earthquake-resistant fire extinguishing device as a fire extinguishing mechanism, it is easier to configure and costs less than installing a separate fire extinguishing mechanism, and it can extinguish fire instantly and reliably. .

[Brief explanation of drawings]

FIG. 1 is a front view of a main part of a combustion device according to an embodiment of the present invention, and FIG. 2 is a top view of the main part. 13... Thermocouple (temperature detection means), 14... Inner flame tube, 15... Outer flame tube, 17... Outer tube, C... Combustion part, A... Vibration detection section.

Claims (1)

[Scope of utility model registration request] The outer cylinder and the inner cylinder where many flames are formed respectively.
an outer flame tube, forming a combustion part between the inner and outer flame tubes, and a temperature detection means for detecting the temperature of the lower part between the inner and outer flame tubes to detect an oxygen deficiency state,
A combustion device configured to operate an earthquake-resistant fire extinguishing system by driving a drive section consisting of an operating rod integrated with a fixed electromagnetic core and a movable core using a detection signal from the temperature detection means.