JPS599170Y2 - Ultrasonic atomization combustion device - Google Patents

Description

[Detailed description of the invention] This invention relates to an ultrasonic atomization type combustion device that supplies combustion air to multiple independent burners using a single blower.
It supplies stable combustion air to each burner without being affected by the usage status of each burner, and also controls the amount of mixed gas supplied from the fuel atomizer to the burners, and the amount of air supplied from the diverter container to the burners. The purpose is to be able to adjust both at the same time.

Generally, in an ultrasonic atomization type combustion device in which liquid fuel such as petroleum is atomized by a fuel atomizer consisting of an ultrasonic generator and the atomized fuel is combusted in a burner, combustion air is supplied by a blower. , its role as the original combustion air,
It serves as a carrier gas that transports the fuel atomized by the fuel atomizer to the burner.

Therefore, the amount and pressure of combustion air have a large effect on combustion.

Conventionally, when a single blower blows combustion air to multiple independent burners, the degree of combustion air varies depending on the blower's capacity, but in general, the greater the amount of air blown to the burners, the lower the pressure. On the other hand, if the amount of air blown decreases, the pressure increases, and so the pressure fluctuates depending on the load condition, making combustion unstable.

Taking the above points into consideration, this idea keeps the blowing pressure from the blower to each burner constant, prevents the influence of load fluctuations on combustion, and also prevents the flow of mixed gas from the fuel atomizer to the burners. It is possible to simultaneously adjust the supply amount and the supply amount of air from the diverter container to the burner. Next, this invention will be explained in detail with reference to a drawing showing one embodiment thereof.

1 is a blower consisting of a motor 2 and a turbo fan 3;
6 is an adjustment tube that communicates the inside of the divider container 4 with the outside air, and 7 is an opening provided in the adjustment tube 6 to serve as an adjustment hole. The pressure regulating valve 7 opens and closes the opening of the regulating cylinder 6.

Numerals 8 and 8' are fuel atomizers equipped with vibrators 9 and 9' that serve as ultrasonic generators at the bottom. Liquid fuel such as oil is supplied into the fuel atomizers 8 and 8', and vibrations are generated. The liquid fuel is atomized by the vibration of the child 9.9'.

10.10' is a covered middle cylinder provided in the fuel atomizers 8, 8', 11.11' is a burner consisting of burner bodies 12, 12' and burner head 13.13', 14.1
4' is the flame port of burner head 13.13', 15.15'
is a main air pipe connected from the dividing vessel 4 to the upper part of the fuel atomizers 8, 8', and the combustion air is passed from the blower 1 to the fuel atomizers 8, 8' through the main air pipe 15.15'. is blown.

16.16' is a main damper provided in the main air pipe 15.15', and the main damper 16.16' adjusts the amount of air blown to the fuel atomizers 8, 8'.

17.17' is a mixture conduit connected from the upper part of the middle cylinder 10, 10' to the burner body 12, 12'. The converted fuel is sent to the burners 11, 11 together with the combustion air.
'Supplied to.

18.18' is a fine adjustment air conduit branched from the main air conduit 15.15' and connected to the burner body 12.12', 19
．． Reference numeral 19' denotes a sub-damper provided in the fine adjustment air conduit 18.18', and the sub-damper 19.19' finely adjusts the amount of combustion air supplied to the burners 11, 11'.

Then, the pressure regulating valve 7 is closed, both burners 11, 11' are used, and the main damper 16, 16' and the sub damper 1 are used.
9. Set the capacity etc. of the blower 1 so that the blowing pressure of the blower 1 becomes the optimum combustion air pressure P to the burners 11 and 11' when the blower 19' is fully opened and the load on the blower is maximum. When the load decreases and fluctuates, such as when the use of one of the burners 11 and 11' is stopped, the pressure control valve 7 is opened in response to the load fluctuation, and the pressure is constantly supplied to the burners 11 and 11'. The combustion air pressure is set to the optimum combustion air pressure P.

That is, due to a decrease in the load, the air blowing pressure increases because the amount of air blown by the blower 1 is almost constant, but due to the adjustment of the opening of the adjustment cylinder 6 by the pressure adjustment valve 7, the adjustment cylinder 6 increases due to the decrease in the load. The amount of air corresponding to the pressure increase is discharged to the outside air, and the combustion air pressure supplied to the burners 11, 11' is always set to the optimum combustion air pressure P, thereby performing stable combustion.

As described above, according to the ultrasonic atomization type combustion device of this invention, a diverter container is provided in communication with the blower that supplies combustion air, and ultrasonic waves are generated through the plurality of main air pipes in the diverter container. a burner is connected to each of the fuel atomizers via a mixture conduit,
An air conduit branched from each of the main air pipes is connected to each of the burners, and an adjustment hole for opening the outside air is provided in the branch container, and a pressure adjustment valve is provided for adjusting the opening of the adjustment hole. This allows the pressure regulating valve to maintain the combustion air pressure to each burner at a constant level, and a single blower to supply the optimal combustion air to each independent burner, regardless of the usage status of each burner. It is possible to perform stable combustion in each burner, and the amount of mixed gas supplied from the fuel atomizer to the burner and the amount of air supplied from the flow dividing container to the burner are
Can be adjusted at the same time.

[Brief explanation of the drawing]

The drawing is a cutaway front view of essential parts of the ultrasonic atomization type combustion device of this invention. 1...Blower, 4...Diversion container, 6.
...Adjustment tube, 7...Pressure adjustment valve, 8.8
'... Fuel atomizer, 9,9'... Vibrator, 11.11'... Burner.

Claims (1)

[Scope of utility model registration request] A diverter container is provided in communication with a blower for supplying combustion air, a fuel atomizer each comprising an ultrasonic generator is connected to the diverter container via a plurality of main air pipes, and each of the fuel atomizers is connected to the diverter container. The burners are connected to each other through a mixture conduit, an air conduit branched from each of the main air pipes is connected to each of the burners, and an adjustment hole that opens to the outside air is provided in the diverter container. Ultrasonic atomization combustion device equipped with a pressure regulating valve to adjust the opening.