JPS5917334B2 - Method of generating thermal energy by intermittent combustion of suspended air - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for generating thermal energy from organic substances, and more particularly to a method for burning fine organic dust dispersed in the air, or technically suspended air. The present invention relates to a method for generating thermal energy by.

Typical systems traditionally used for thermal energy generation include oil, natural gas, coal and other fossil fuels; wood and similar plants; hydroelectric systems, nuclear reactor systems and other capital intensive systems. It has something like a converter.

However, all of these systems have extremely low efficiency;
It causes extreme environmental pollution, depletes scarce resources, and is relatively expensive.

The object of the present invention is to heat air, water, etc. inexpensively and efficiently by sequentially charging smoke, that is, suspended air, consisting of fine particles of carbonaceous substances dispersed in the air and exploding it intermittently. In this case, the initial charge pressure of the suspended air is at or above atmospheric pressure,
Each time interval during which combustion of the charged suspension takes place is extended without being repeated until the thermal energy is substantially completely dissipated from the walls of the combustion chamber, ie the internal combustion chamber.

Combustion therefore takes place at high temperature and pressure, thus ensuring high efficiency, but overall allowing operation at relatively low temperatures and the use of construction materials at relatively low temperatures.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

The device shown in the drawing is a heat generator, in particular for heating air or water, comprising an internal combustion chamber 10 and into which a suspended charge for explosion is introduced intermittently. a flow system 12 for scavenging combustion products from the internal combustion chamber; and an ignition system 14 for intermittent sequential explosion of suspended air at high temperature and pressure.
They are equipped with the following.

The flow system 12 comprises a pressurized air supply chamber 18 and a dust storage chamber 20, which are connected as follows.

That is, the pressurized air supply chamber 18 is connected via a control valve 22 to a venturi mixer 24, to which the dust storage chamber 20 is also connected.

Further, the venturi mixer 24 is connected to the internal combustion chamber 10 via a control valve 26, a quick connection valve 28, and a check valve 30.
It is connected to the.

When the control valve 26 opens, the air in the pressurized air supply chamber 18 flows violently through the venturi mixer 24, so that particulates from the dust storage chamber 20 mix with the air flowing through the venturi mixer.

The suspended air thus formed is pumped into the internal combustion chamber 10.

After the explosion of the suspended charge, which will be described later, the combustion products exit the internal combustion chamber 10 via the exhaust pipe 32.

The diameter of the exhaust pipe is such that the pressure in the internal combustion chamber gradually decreases so that the combustion products heated in the internal combustion chamber remain within the internal combustion chamber until they transfer most of their energy to the internal combustion chamber walls. has been selected.

The ignition system 14 is powered by the power supply 34 via a step-up transformer 36, by which the ignition coil 38 in the internal combustion chamber 10 is powered.

A switch 40 connects the step-up transformer 36 in series with an ammeter 42.
Connect the primary coil to the power source 34.

A pilot lamp 44 is connected in parallel with the ammeter 42.

The combustion switch 46 is connected to a control valve, ie, a solenoid valve 26 , in order to charge suspended air from the pressurized air supply chamber 18 and the dust storage chamber 20 into the internal combustion chamber 10 via the quick coupling valve 28 and the check valve 30 . Connect the solenoid to the power supply 34.

Inside the internal combustion chamber 10, the charged suspended air explodes and heat is generated on the internal combustion chamber wall.

Part of this heat is transferred to the air flowing in contact with the fins 48 on the outer wall of the internal combustion chamber and sent to the heating duct, and the other part is transferred to the coiled tube 50 to heat the water flowing therein. .

Furthermore, the generated heat can be applied to coupis and other prime movers.

Next, a method of generating energy in the above configuration will be explained.

Regarding the suspended air used here, the minimum concentration of dust in the air is 25 ounces (7 ounces) of dust per 1,000 cubic feet (28,32 cubic meters) of air at atmospheric pressure.
09 grams).

The average particle size of dust is from 1 micron to 20 microns.
It is desirable that it be within the range of 0 meshes.

The minimum spark energy required for ignition is 1
It is desirable that the amount is 5 millijoules or more.

Typical materials that make up dust include corn cob meal, corn starch, cotton nuts, gar seeds, nut shells, onions, beans, alfalfa, potatoes, rice, soybeans, sugar, tongs
, agricultural by-products such as wheat, husk, and yeast, fossil hydrocarbons such as coal and lignite, fossil hydrocarbons such as bark powder, cork, natural rubber, wood powder, and rubber, rosin, cellulose acetate, and polyvinyl acetate. , polyethylene, polystyrene, and other resins.

Preferred dust compositions exemplified as agricultural by-products are commonly known as biomass materials.

In reality, explosions occur one after the other, but the heat generated is dissipated before the next explosion.

The internal combustion chamber is made of cast aluminum or cast steel, and has a diameter of 5 to 50C.
rrL and a length of 100 to 1,000 crfL are preferred.

Next, the operation of the above configuration will be explained.

The pressure in the air supply chamber 18 is at least equal to atmospheric pressure ζ, typically between 20 and 200 pounds per square inch.
．． 06 kg/ff1), which is preferably higher than atmospheric pressure.

The switch 40 is monitored by a control unit 52 and when the switch 40 is actuated, the transformer 36 is energized.

Immediately thereafter, the combustion switch 46, also monitored by the control unit 52, is actuated and the solenoid valve 26 is opened, so that the air from the air supply chamber 18 and the dust from the dust storage chamber 20 are mixed into the venturi mixer, i.e. the venturi mixer. Nozzle 2
Mix at step 4.

Then, this mixed suspended air is charged into the internal combustion chamber 10 through the quick connection valve 28 and the check valve 30 at a preset pressure and concentration.

When the pressure inside the internal combustion chamber reaches a predetermined level determined by the pressure gauge 56 and pressure switch 58, an explosion is started by the ignition coil 38, and the temperature and pressure are maximized while transferring heat to the wall of the internal combustion chamber. The explosion will continue until the explosion is reached.

Note that the pressure switch 58 may be provided within the loop connecting both ends of the secondary coil of the transformer 36 and both ends of the ignition coil 38 so as to turn on/off this loop.

The heat generated by the explosion described above is completely carried away by a fluid such as air and/or water that passes in contact with or in the vicinity of the outer wall of the internal combustion chamber.

That is, in the case of air, the fins 4 on the outer wall of the internal combustion chamber 10
The air flowing in contact with 8 is guided into the duct of the air conditioning unit.

In the case of water, the water flowing through the coiled tube 50 is stored in a high temperature water tank.

A second exhaust pipe 54 is connected to a pressure gauge 56.

The control unit 52 times the explosions so that each explosion does not occur until all of the heat generated by the previous explosion has been completely dissipated in the heat exchange system.

Since various changes and modifications can be made in the above disclosure without departing from the scope of the following claims, all matters stated in the above description and shown in the drawings are intended to be illustrative only. should be construed as intended for purposes only and not for purposes of limitation.

To summarize the gist of the present invention, the present invention aims to obtain inexpensive and efficient thermal energy that can be used in various ways.
This method involves intermittently exploding suspended air.

As explained above, according to the method of the present invention, organic substances selected from categories such as agricultural products, fossils, plants, and resins that are difficult to ignite are pulverized, and the solid particles are mixed with air to create suspended air. By forming this, it becomes possible to intermittently explode and burn this suspended air.

Therefore, according to the present invention, without using conventional combustible fuels such as petroleum, natural gas, coal, and wood, low-flammability organic substances belonging to agricultural waste, industrial waste, etc. can be used as fuel, inexpensively and efficiently. Thermal energy can be obtained, which greatly contributes to resource conservation.

[Brief explanation of drawings]

The drawing is an explanatory diagram of one embodiment of the present invention, including a cross-sectional view of mechanical parts and a block diagram of electrical parts. In addition, in the symbols used in the drawings, 10...
... Internal combustion chamber (combustion chamber), 12 ... Flow system, 14 ... Ignition system, 32 ... Exhaust pipe, 40 ... Main switch, 46・・・・・・
Combustion switch, 52...Control unit, 56.
...Pressure gauge, 58...Pressure switch.

Claims (1)

[Scope of Claims] 1. A method for generating thermal energy through intermittent combustion of suspended air, characterized by comprising the following steps: (a) The intermittent formation of a suspension consisting of a mixture of dispersed fine solid particles and air. (b) The solid particles mentioned above are agricultural products, fossils, etc. that are difficult to ignite.
Consists of organic substances selected from the categories of plants and resins, etc. (c) The solid particles have an average diameter of 1 micron to 200 mesh. (d) The pressure of the suspended air is at least atmospheric and its minimum concentration is 1,000 cubic feet (28.3 cubic feet).
25 ounces (709 grams) per 2 cubic meters. (e) Next, introducing the suspended air into the combustion chamber while maintaining it at approximately the atmospheric pressure. (g) The introduced suspended air is then brought to approximately the atmospheric pressure in the combustion chamber and activated intermittently with an electric current having an energy of at least 15 millijoules, whereby the suspended air is heated for a predetermined period of time. detonate at high temperature. The intermittent time intervals for activating and exploding the suspended air are:
be long enough that the thermal energy generated by this explosion is almost completely dissipated into the heat exchange system; (g) then supplying the thermal energy generated in said explosion and transferred via said heat exchange system to a predetermined equipment; (h) and discharging the residue of the activated and exploded combustion products from the combustion chamber. 2. Claim 1, wherein the predetermined device is a heater.
The method described in section. 3. The method of claim 1, wherein the predetermined device is an air heater. 4. The method according to claim 1, wherein the predetermined device is a water heater. 5 Claim 1 in which the above-mentioned predetermined device is a prime mover
The method described in section. 6. The method of claim 1, wherein the solid particles are comprised of biomass material.