JPS61285305A - Pulse burning device - Google Patents

Abstract

PURPOSE:To enable to eliminate installation of a commercial power source by installing a power source for ignition at the starting in such a manner that in an exhaust gas path a thermoelectric element is installed to store electric power. CONSTITUTION:At a part of a buffer chamber 12 in the exhaust side a thermoelement module 19 is placed and electricity generated by exhaust heat is stored in a battery 20 or a condenser. At the starting time, by this battery 20 a fan is driven and an air is charged into a combustion chamber 1 from a mixing tube 8 via an air pipe 11 and an air valve device 9 and gas is discharged into the combustion chamber 1 via gas pipe 6, a buffer chamber 5 in the gas side, a gas valve device, and a gas distributor and an ignition plug 7 is ignited and fired on electricity of a battery 20.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an improvement in a pulse combustion device used as a heating device for industrial, industrial or domestic water heaters, hot air blowers, and the like.

BACKGROUND OF THE INVENTION A conventional pulse combustor consists of a combustion chamber, a till pipe, an air passage, and a fuel supply path having a fuel pulp. Fuel air is supplied in advance to the combustion chamber through an air passage by a blower. Further, fuel is supplied to the combustion chamber from the fuel supply path. Fuel and air are mixed to form a mixture. When this air-fuel mixture is ignited, it explodes and burns, the pressure in the combustion chamber increases, the air pulp and fuel pulp close, and the supply of fuel and air stops. The fuel gas is discharged from the till pipe, then the pressure in the combustion chamber is reduced to negative pressure, the fuel and air pulp is opened and the air chamber is supplied to the combustion chamber, and at the same time the hot combustion gas flows back and the fuel The mixture of air and air is ignited and explosive combustion occurs again. Thereafter, a similar ignition, explosion, and suction of fuel and air occur without air blowing from the blower, and regular explosive combustion continues. At this time, in order to start combustion for the first time, it is necessary to blow air with a blower and to energize the spark plug to start explosive combustion. After that, the fuel and
It is possible to draw air into the combustion chamber and continue combustion with the high temperature combustion gas that was burned earlier.

Problems to be Solved by the Invention Conventional pulse combustors require a commercial power source for a blower or a spark plug for ignition during startup.

Therefore, there was a problem in that the conditions of use were limited.

The present invention corrects the conventional drawbacks and provides a pulse combustion device that does not use a commercial power source, that is, the conditions of use are not limited.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a combustion exhaust gas passage, that is, a part of the heat exchanger surface, with one side facing the water or hot water passage, and one side facing the combustion exhaust gas passage. A thermionic element module that combines a p-n element made of an intermetallic compound semiconductor facing the side is installed, and a secondary battery or a capacitor for storing the electricity generated thereby is installed outside the pulse combustor. These power sources are used to start the engine.

Function The present invention has the above-described configuration, generates electricity from the heat in the exhaust gas of the pulse combustor, stores the generated electricity in a battery or a capacitor, and provides it as power at the time of starting, thereby eliminating the need for a commercial power source. It has the advantage of being able to be installed without any usage conditions.

Embodiment The figure shows an embodiment of the pulse combustion apparatus of the present invention, and as shown in the figure, a combustion chamber 1. Dill pipe 2. Gas distributor 3. Gas pulp equipment 4. Gas side buffer chamber 5. Gas vibro, spark plug 7, mixing tube 8. Air pulp equipment9. Blower10. Air pipe 11. Air side buffer chamber 12. Sound absorbing material 13. Exhaust side buffer chamber 14. Exhaust pipe 16° Hot water storage chamber 16. Water introduction pipe 17. Hot water pipe 18
゜And thermoelectric element module 19. It consists of a secondary battery 20° lead wire 21. This thermoelectric element module 19 is made by connecting a p-type element and an n-type element made of an intermetallic compound using a conductor. Desirably, a large number of these element modules are connected in series or in parallel to form a unit, and each element The gap created between them is made by mixing glass fiber or the like into a thermosetting resin such as epoxy resin. Here, as the compound semiconductor forming the p-type element, for example, Bi2Te3. GeTe, Zn5b, etc. are used,
On the other hand, PbTe or the like is used as the n-type element. Secondary batteries that store the electricity generated from these heat conductive elements include nickel-cadmium secondary batteries, lithium secondary batteries, lead secondary batteries, and small solid-state batteries using copper ion conductors. In addition to this, it is also possible to use the capacitor in combination with a large capacity capacitor or the like, or to use the capacitor alone.

In the device of the present invention described above, the temperature on the exhaust gas side of the exhaust buffer chamber 14 of the pulse combustor is 200°C to 260°C.
The temperature on the water jacket side is 40'C to 60C.

At this time, B15bTe/B1TeSe are each p-type.

When used as an n-type thermoelectric power generation element, TH (high temperature side temperature) is 1,43V, TO (low temperature side temperature) is 60℃
The power generation capacity is Eo=1.63V Pwax==
It was 5.45w. These powers are stored in batteries or capacitors. On the other hand, when starting the pulse combustor, first the blower 1o is powered by the stored electric power.
, air is introduced from the air pipe 11 through the air pulp device 9 into the combustion chamber 1 from the mixing pipe 8, and at the same time, gas as fuel is passed through the gas vibro to the gas side buffer chamber 5. The gas is introduced into the combustion chamber 1 through a gas distributor 3 through a gas pulp device. Note that this gas is generally introduced using gas pressure. Then ignite it with a spark plug. Note that the power source for the spark plug is obtained from the aforementioned storage battery 20 or a capacitor.

In the case of a pulse combustor, once combustion (explosive combustion) starts, air is automatically sucked in from now on due to the wind pressure, and at the same time, the heat left over from the explosive combustion automatically becomes an ignition source. From then on, neither the blower 10 nor the spark plug 7 is necessary.

Therefore, the electric power is sufficient to start the initial combustion, and it is very weak.In that sense, a small-capacity storage battery or a capacitor is sufficient, and the electric energy stored in the storage battery or capacitor is 4D. However, only a small amount of solder and a small and inefficient thermoelectric element are sufficient.

Effects of the Invention As described above, the present invention provides a power source for AC power generation by installing a simple thermoelectric element on the exhaust gas passage wall of a pulse combustor and storing the electric power generated by the exhaust heat in a storage battery or a capacitor. It is possible to create a pulse combustor that does not require it, and it is also possible to create one that is not subject to installation restrictions from at least the AC power supply.

Wind machine, 16... Exhaust pipe, 16-...
Hot water storage room, 19...Thermoelectric element, 2o...
Storage battery.

Claims (1)

[Claims] A combustion chamber, a fuel supply means and an air supply means connected to the upstream part of the combustion chamber, a till pipe connected to the downstream part of the combustion chamber, and a buffer chamber connected to the downstream part of the till pipe. A thermoelectric element module that combines p and n elements made of intermetallic compound semiconductors is closely attached to a part of the wall of the till pipe or buffer chamber, converting the waste heat from the combustion exhaust gas into electrons, and converting the waste heat from the combustion exhaust gas into electrons. A pulse combustion device characterized in that the energy is stored in a storage battery or a capacitor, and the power source is used as a power source when starting pulse combustion.