JPS58187714A - Emulsion burning method - Google Patents

Abstract

PURPOSE:To make it possible to suppress water addition loss to the minimum by utilizing steam condensed water as overheated water to be mixed in oil. CONSTITUTION:At the intermediate part of an oil line 12 through which oil is supplied to a combustion burner 11 is connected an overheated water line 13 in which condensed water from a waste heat recovering steam line (not shown) is mixed, and high-temperature steam condensed water is mixed in oil. Thereafter, the oil and condensed water are mixed, agitated and heated by a mixer 14 and a heater 15 successively provided in the downstream of the line 12, to produce an oil-water emulsion (turbid liquid) fuel which is burnt by the burner 11. Accordingly, the source of overheated water such as a water tank, a pump, a heater or the like becomes unnecessary.

Description

[Detailed description of the invention] The present invention relates to an emulsion combustion method.

The emulsion combustion method using superheated water improves combustibility by atomizing asphalt and other high-viscosity heavy oils into very fine particles due to the 7 lashing effect of water, making low-oxygen combustion possible. It is.

As shown in Figure 1, the above emulsion combustion method involves connecting a superheated water line (3) that mixes superheated water into the oil in the middle of the oil line (2) that supplies oil to the combustion burners (1) and K. After superheated water with a weight ratio of, for example, 20% to the amount of oil is mixed into the pond, the
? - (4) and heater (6) are mixed, stirred and heated from K to form an oil-water emulsion fuel, which is then heated to the burner (
It is supplied to υ for combustion.

Furthermore, due to the nature of this emulsion combustion method, heat loss in the flue gas due to the addition of water cannot be avoided, but the purpose of the system, which is to improve combustion through the flushing effect, cannot be achieved using the emulsion combustion method that does not employ this system. It is possible to reduce the amount of combustion air (oxygen) by a large amount compared to the previous method, and as a result, an increase in combustion efficiency (due to an increase in F-7 energy) and an increase in furnace efficiency can be obtained. Tokorozu, conventionally, in order to obtain superheated water for heating oil, a water tank (6), a pump (7) and a heater (8) are arranged in the superheated water line (3) K to heat new water. K is used to obtain superheated water.
Therefore, such an emulsion combustion method has the drawback of large water addition loss.

Therefore, an object of the present invention is to provide an emulsion combustion method that can eliminate the above-mentioned drawbacks.

That is, the present invention is an emulsion combustion method characterized in that, after superheated water is mixed into a pond, steam condensed water is used as the superheated water when heating and burning a turbid liquid of superheated water and oil. It is the law.

According to this method, as superheated water mixed into oil,
Since steam condensed water is used, the superheated water source (water tank, pump, heat, etc.) that was conventionally necessary can be made unnecessary, and therefore, the loss of filtrate added in the emulsion combustion method can be kept to a minimum.

An embodiment of the present invention will be described below with reference to FIG. In this embodiment, the emulsion combustion method uses an oil tank that supplies oil to the combustion burner (11); After connecting the superheated water line to be mixed, that is, the condensed water line α, and mixing high-temperature steam condensed water into the oil, it is mixed, stirred, and heated by a mixer and a heater α, which are sequentially installed downstream. Oil-water emulsion (turbid liquid)
The fuel is supplied to the burner (1) and burned. In Fig. 2, (I@) is an oil return line connected downstream from heater α4 of the oil tank.

In this way, since steam condensed water is used as the superheated water that produces 1% VC in the oil, there is no need for conventional superheated water sources (water tanks, pumps, heaters, etc.), and therefore, the water supply in the emulsion combustion method can be reduced. Minimize the number of damaged husbands,
Next, an embodiment of a pond will be described based on FIG. 6, which makes it possible to maximize the merits of the combustion method.

In this method, in the above embodiment, the oil line, 1
A superheated water line is connected in the middle of the steam line H downstream from the heat exchanger θ.・The condensed water is taken out from the tank and mixed into the oil in the oil line (12H).

Note that as the steam, steam from a waste heat recovery line or wet steam discharged from a steam trap in the recovery line is used.

In this way, the oil in the oil line is preheated by using the steam before obtaining the steamed water, so mixer;
It is possible to reduce the capacity of the heater (I6) installed downstream of the

[Brief explanation of the drawing]

FIG. 3 is a flow sheet diagram showing another example.
)...Combustion burner, (l smell...oil line, ■...
・& Fine ice line (superheated water line), 971...Heat exchanger, Sha...Steam line agent Yoshihiro Morimoto 56

Claims (1)

[Claims] 1. An emulsion combustion method characterized in that after superheated water is mixed into a pond, steam condensed water is used as the superheated water when heating and burning the turbid liquid of superheated water and oil.