JP2011089097A - Apparatus for producing emulsion fuel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for producing an emulsion fuel having sufficient agitation capacity in a compact and simple system in using two kinds of oils. <P>SOLUTION: The apparatus includes two sets of vortex oil pumps 1 and an emulsion pump 3, and two sets of ejectors 5 on the ends of pipes for feeding to an agitation tank 6 and for circulation, is further equipped with flowmeters 8 necessary for inverter-controlling the numbers of rotation of electric pumps to feed predetermined amounts of liquids, a level sensor 9 and an automatic flow regulating valve 10, and has a mixer 7 for emulsifying a mixture by mixing water after two kinds of oils and an additive have been premixed in the agitation tank 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an emulsion fuel production apparatus.

  Due to the surge in oil prices that peaked last summer, fisheries with a high energy cost ratio, agriculture such as house cultivation, hot bath facilities, and the transportation industry were severely hit. At one time, the oil price dropped significantly due to the rising reaction, but it is rising again due to actual demand in developing countries. Although there is a problem of fuel cost, reduction of carbon dioxide emissions is not less than an important issue. Under such circumstances, the spread of emulsion fuel advantageous to both is in progress. Ordinary emulsion fuel is emulsified by mixing three liquids, oil, additive and water, into emulsion fuel. The use of biofuel, which is very effective especially in terms of reducing carbon dioxide emissions, will continue to be promoted in the future, but mixing of biofuel is also effective in emulsion fuel.

  Emulsion fuel is usually produced by emulsifying three liquids, oil, additive and water. When biofuel is used, it can be used by mixing with conventional fuel. Mix in petroleum oil. In order to produce a large amount of emulsion fuel from two types of oil, usually a plurality of expensive mixers are required, but the system becomes complicated and becomes a large-scale apparatus. Batch processing is possible when manufacturing in small quantities, but continuous processing is usually used when manufacturing in large quantities. Provided is a continuous production apparatus capable of sufficiently emulsifying two types of oil in a short time with a simple, compact and inexpensive apparatus even in a non-compact apparatus.

  FIG. 1 shows a conceptual system diagram of the present invention. The two types of oil are respectively supplied through a flow meter 8 and supplied to a stirring tank 6 by an ejector 5 after merging by a vortex oil pump 1 driven by an inverter motor. At the same time, a predetermined amount of the additive is supplied to the vicinity of the ejector 5 in the agitation tank 6 through the flow meter 8 by an additive pump (2) having a variable flow rate by an inverter. In this case, the oil is supplied to the agitation tank 6 by a high-speed rotating vortex pump 1 having a high agitation capacity, but an ejector 5 is provided at the tip of the agitation tank piping to suck and eject several times the surrounding liquid. And stirring with the additive simultaneously. The flow rate of the emulsion pump 3 driven by the inverter motor is controlled by the level sensor 9 so that the liquid level of the stirring tank 6 becomes constant. Stir with the ejector 5. The vortex pump rotates at high speed, and the liquid is sent while generating vortices along the inner wall of the pump by the rotation of an impeller having a radial groove on the outer periphery, so that the stirring ability is high. In addition, when the ejector ejects from the nozzle at a high speed, the surrounding becomes a negative pressure, and therefore the amount of liquid several times the surrounding is sucked and mixed and injected, so the stirring force is large. The stirring tank 6 does not have to have a large capacity. The liquid supplied by the emulsion pump 3 and the water supplied by the flowmeter 8 by the water pump (4) driven by the inverter motor are emulsified by the mixer 7 to become emulsion fuel.

  By supplying the two types of oil and additives to the vortex pump 4 with high stirring ability and the high-speed rotation vortex pump 4 and the ejector 5 that sucks and ejects several times the amount of liquid around it, Even if two types of oil are used in the mixer, sufficient emulsification can be achieved, so that emulsion fuel can be produced at low cost with a simple apparatus.

  This will be described based on the system diagram of FIG. First, for example, two kinds of oils such as petroleum-based fuel and biofuel are supplied to the agitation tank 6 via the ejector 5 by a vortex type inverter motor driven oil pump 1 by a flow meter 8, and at the same time, additives are added to the flow meter 8 The diaphragm type variable-speed motor-driven additive pump 2 supplies a set amount in the vicinity of the ejector 5, and the ejector 5 simultaneously stirs the oil or additive already contained. In the agitation tank 6, the opening of the flow rate adjusting valve 10 is adjusted simultaneously with the supply to the mixer 7 by the emulsion pump 3 to adjust the circulation amount so that the level set by the level sensor 9 such as an ultrasonic sensor is maintained. At the same time as the supply to the mixer 7 by the vortex emulsion pump 3, the circulation amount is adjusted by the flow rate adjusting valve 10 and circulated to the agitation tank 6 via the ejector 5. Since the liquid is sent while generating a vortex along the inner wall of the pump by the rotation of the impeller, the stirring ability is high, and the ejector discharges from the nozzle at a high speed, so the surrounding becomes negative pressure. Since the liquid is sucked and mixed and jetted, the stirring force is large. The emulsion pump 3 sends the mixed liquid to the mixer. At the same time, the flow meter 8 mixes with a predetermined amount of water supplied by the water pump 2 driven by the inverter motor and emulsifies it to produce emulsion fuel. The above operation is automatically performed by a control device (not shown).

  As described in the best mode in the previous section, FIG. 1 shows the case of two types of oil in a non-compact emulsion fuel production apparatus, and the mixing ratio and emulsification method differ depending on the type of water, additive, or oil. Of course, in the case of three types of oil, the flow meter 8 and the oil pump 1 may be further added.

  The device of the present invention is simple and does not require a large tank, can be made compact, and can be manufactured at low cost, so it is considered to be highly practical and easy to spread, and it can save energy and emit carbon dioxide, nitrogen oxides, sulfur oxides, etc. Contributes to significant reduction. This is particularly effective when using biofuel.

  It is a notional systematic diagram of the present invention.

DESCRIPTION OF SYMBOLS 1 Oil pump 2 Additive pump 3 Emulsion pump 4 Water pump 5 Ejector 6 Stir tank 7 Mixer 8 Flow meter 9 Level sensor 10 Flow control valve

Claims (1)

  Two vortex-type oil pumps (1) and emulsion pumps (3) with high agitation capacity, and suction of several times the amount of liquid at the tip of the pipe for supply and circulation to the agitation tank (6) And two ejectors (5) to be ejected, and the flow rate meter (8), level sensor (9) and automatic flow rate adjustment necessary for inverter control to supply a predetermined amount of liquid to the rotation speed of the electric pump An automatic emulsion fuel production apparatus for providing a valve (10), premixing two kinds of oil and additives in a stirring tank 6, and further mixing water into an emulsion by a mixer (7).

Images