JP2003105343A - Method for modifying polymer and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for modifying a polymer, by which the modification of the polymer due to its molecular weight lowering can highly efficiently be carried out with a relatively simple device. SOLUTION: This method for modifying the polymer is characterized by disposing an actuator 17 in a receiving portion for receiving the liquid 13 of the polymer in a liquid-contact state, subjecting the actuator to a high frequency oscillation operation or a high speed rotation operation to continuously give pressure changes to the polymer, thereby repeating the continuous production and collapse of cavitation bubbles in the liquid of the polymer to lower the molecular weight of the polymer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for reforming a polymer compound, which reduces the polymer component composition of a polymer liquid to lower the molecular weight.

[0002]

2. Description of the Related Art For example, a diesel engine vehicle or the like is driven by way or by using heavy oil as fuel, but in recent years, NOx contained in exhaust gas, unburned products, and soot emissions pollute the atmosphere and cause human beings. The fact that it causes health damage is taken up as a social problem.

Therefore, various technical developments have been carried out to purify the exhaust gas of a diesel engine, and a device for reducing NOx and dust has been developed by attaching a ceramics filter and a special catalyst device to the tip of the exhaust pipe of the engine. It was

In a diesel engine vehicle, especially in a large truck, the amount of exhaust gas is large, so the amount of exhaust gas discharged from the engine is also large, and these exhaust gas purifying devices become large devices.

Further, various chemical substances contained in the exhaust gas are collected on the filter or the surface of the catalyst having fine meshes, so that clogging occurs as the traveling distance increases, and the inside of the device is regularly cleaned. However, the work to remove the clogged substance becomes necessary. Some types of catalysts are of the type that collects chemical substances contained in exhaust gas and chemically changes them into other clean substances by oxidation / reduction reactions. Since the portion still exists, the catalyst surface becomes dirty with the lapse of use time, which requires periodic cleaning work.

Since diesel engine trucks and the like are generally used for long-distance transportation and the like, it is often not possible to secure frequent cleaning work of the exhaust gas cleaning device in terms of work time.

[0007]

As described above, conventionally, an exhaust gas purifying apparatus or the like applied to a diesel engine or the like becomes large, or various chemical substances contained in exhaust gas are finely filtered or In order to remove the clogging of the catalyst surface, it was necessary to regularly clean the inside of the device to remove the clogged substance. Further, in the apparatus utilizing the catalyst, there is a problem that the unreacted portion still exists, the surface of the catalyst becomes dirty with the lapse of use time, and periodical cleaning work is required.

The present invention has been made in view of the above circumstances, and it is highly efficient to modify diesel engine fuels and other various polymer compounds by lowering the molecular weight before combustion, with a relatively simple device configuration. An object of the present invention is to provide a method and an apparatus for reforming a polymer compound which can be carried out and can effectively suppress the production of harmful chemical substances contained in fuel exhaust gas.

[0009]

In order to achieve the above-mentioned object, in the invention according to claim 1, an actuator is placed in a liquid contact state in an accommodating portion for accommodating a liquid of a polymer compound,
This actuator is subjected to high-frequency vibration or high-speed rotation to continuously apply pressure fluctuations to the polymer compound, and the continuous generation and collapse of cavitation bubbles are repeated in the liquid of the polymer compound, whereby the polymer Provided is a method for modifying a polymer compound, which comprises lowering the molecular weight of the compound.

According to the second aspect of the present invention, there is provided a container for containing the liquid of the polymer compound, and a vibration type actuator provided in the container and vibrating in a direction perpendicular to a surface in contact with the polymer compound. There is provided a reforming device for a polymer compound, comprising: a high-frequency vibration generator that vibrates the vibration-type actuator at a high frequency along a direction perpendicular to the liquid contact surface.

According to a third aspect of the present invention, in the polymer compound reforming apparatus according to the second aspect, the vibration type actuator has a piezoelectric ceramics vibrator or a giant magnetostrictive material vibrator as a vibration source. Provided is a reforming apparatus for polymer compounds.

According to a fourth aspect of the invention, in the polymer compound reforming apparatus according to the third aspect, a container for flowing the liquid of the polymer compound along one direction, and a flow direction of the liquid in the container. And a plurality of vibrating plates as vibration type actuators arranged in a stepped manner with intervals between them, and the holes for liquid passage in each of these vibrating plates are formed in different positions on the vibrating plates adjacent to each other. A reformer for a polymer compound according to claim 3 is provided.

According to a fifth aspect of the present invention, an accommodating portion for accommodating the liquid of the high molecular compound, and an outer peripheral surface of the rotor which is provided in the accommodating portion and is rotatable by contacting the outer peripheral surface with the high molecular compound There is provided a polymer compound reforming device comprising: a rotary actuator provided with a plurality of protrusions; and a rotary drive device for rotating the rotary actuator at high speed around its axis.

In the invention according to claim 6, claims 2 to 5
In the polymer compound reforming apparatus according to any one of the above, there is provided a polymer compound reforming apparatus, wherein the actuator is set to apply ultrasonic vibration to the polymer compound.

In the invention according to claim 7, claims 2 to 6
A fuel reformer characterized in that the reformer for a polymer compound according to any one of items 1 to 6 is arranged in a fuel supply path of a combustor such as an engine or a boiler, and is applied for fuel reforming. .

According to an eighth aspect of the present invention, in the fuel reforming apparatus according to the seventh aspect, the accommodating portion is arranged in front of the fuel injection pump of the diesel engine, and the reformed fuel is supplied to the fuel injection pump. Provided is a fuel reforming device having a configuration.

According to the invention of claim 9, claims 2 to 6
Arranging the polymer compound reforming device according to any one of 1 to 4 above in a process of treating harmful organic substances such as a CFC solution or PCB oil, and changing the chemical composition of the CFC or PCB oil,
Provided is a polymer compound reforming device which is rendered harmless.

According to a tenth aspect of the present invention, in the polymer compound reforming apparatus according to any of the second to eighth aspects, a high hardness material such as ceramics is used in the liquid contact portion of the actuator for generating cavitation bubbles. use,
Provided is a polymer compound reforming device which is characterized by preventing breakage due to cavitation.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a method and an apparatus for modifying a polymer compound according to the present invention will be described below with reference to the drawings. In the following embodiments, a case where the present invention is applied as a diesel engine fuel reforming method and apparatus will be described.

First Embodiment (FIGS. 1 to 3) The present embodiment is carried out as a fuel reforming method and apparatus for reforming a fuel (for example, light oil) of a diesel engine. The actuator is a vibration type, and a piezoelectric vibrator is applied to this actuator. Figure 1
[Fig. 2] is an explanatory view schematically showing a diesel engine and a fuel supply system thereof, and Fig. 2 is an enlarged view showing a configuration of a fuel reforming device. FIG. 3 is a characteristic diagram showing a fuel reforming example.

As shown in FIG. 1, the diesel engine 1 of the present embodiment has a general structure. Fuel is supplied from a fuel injection pump 2 to a cylinder 4 via a fuel supply pipe 5 as the piston 3 operates. To spray. In the cylinder 4, the piston 3 is reciprocally driven by repeating intake, compression, explosion, and exhaust, and the output shaft 7 provided in the engine body 6 continuously rotates. Exhaust gas is discharged from the engine exhaust port 8.

The fuel supply system for supplying fuel to the fuel injection pump 2 of the diesel engine 1 is a fuel tank 9
And a fuel reforming device 10 and a fuel supply pump 11. The fuel 13 before reforming is contained in the fuel tank 9, and the fuel 13 before reforming is supplied from the fuel tank 9 to the fuel reforming device 10 through the primary fuel supply pipe 12a. The fuel reforming apparatus 10 has a container 14 that is a closed tank as a fuel storage portion that stores the fuel 13, and receives the fuel 13 before reforming from a fuel introduction port 14a provided in, for example, an upper portion of the container 14, The fuel is reformed in the container 14, and the reformed fuel 15 is discharged from the fuel discharge port 14b provided in the lower portion of the container 14. Then, the fuel 15 reformed by the fuel reformer 10 is supplied to the fuel supply pump 11 and the fuel injection pump 2 via the secondary fuel supply pipe 12b.

FIG. 2 shows the structure of the fuel reformer 10 in detail. A vibrating actuator 16 is provided on the inner bottom of the container 14. This vibration type actuator 16
Is configured as, for example, one horizontal flat plate-shaped vibrator 17, and is arranged parallel to the bottom of the container 14.
Fuel 1 to be reformed on the flat upper surface 17a of the vibrator 17
3 is in contact with liquid. The vibrator 17 is made of a material having high hardness such as ceramics or cemented carbide. A high-frequency vibration generator 18 for vibrating the vibrator at a high frequency is provided on the lower surface side of the vibrator 17, and the vibrator 17 is driven by the high-frequency vibration generator 18.

The high frequency vibration generator 18 includes a piezoelectric element 19 as a vibration source integrally bonded to the lower surface of the vibrator 17.
And a high frequency power supply device 21 for supplying a vibration current to the piezoelectric element 19 via a high frequency current cable 20. The piezoelectric element 19 is made of, for example, ceramics,
The piezoelectric action causes the vibrator 17 to vibrate in a direction (vertical direction) perpendicular to the liquid contact surface (upper surface). The high frequency power supply device 21 frequency-converts electric power P from a basic power supply 21a such as a vehicle battery or a vehicle generator, and generates a high frequency current.

In the fuel reforming apparatus 10 having such a structure, when the diesel engine 1 is started, a high frequency current is supplied to the piezoelectric element 19 from the high frequency power supply device 21 by a switch or the like (not shown), so that the piezoelectric element 19 is bonded. The vibrated oscillator 17 vibrates at high frequency. When the vibrator 17 vibrates at high frequency in the fuel 13, the surface 17a of the vibrator 17
Fine cavitation bubbles 22 are generated in the
By the reciprocating motion of 7, the cavitation bubble 22
Repeats formation and collapse. When the cavitation bubbles 22 collapse, a large impact pressure is generated, and depending on the conditions, the generated impact pressure can reach several hundred MPa.

Further, when the vibrator 17 is vibrated in the ultrasonic region of 20 KHz or higher, the cluster of molecules in the fuel 13, which is a polymer liquid, is reduced by the vibration. Therefore, when the vibrator 17 is ultrasonically vibrated, the polymer chain forming the fuel 13 is physically cut by the synergistic effect of the impact pressure due to cavitation and the cluster decomposition action due to ultrasonic vibration, and the low molecular weight molecules are cut. A reforming action is carried out.

As an experimental example, FIG. 3 shows molecular weight change data when the fuel is irradiated with ultrasonic waves.
The horizontal axis represents ultrasonic wave irradiation time, and the vertical axis represents molecular weight. As shown by the characteristic line a in FIG. 3, it was confirmed that the molecular weight of the fuel rapidly decreased from the beginning of the irradiation of ultrasonic waves, and after a few minutes, the molecular weight decreased to the order of 1 × 10 ⁻⁵ .

As described above, the fuel 15 whose molecular weight has been reduced by the reforming action by the division of the polymer chain is used in the diesel engine 1
When it is used as the fuel of the diesel engine 1, the amount of the polymer component is reduced compared to the case where the conventional untreated fuel 13 is burned as it is because the composition amount of the polymer component in which the dust is easily generated is reduced when the untreated fuel 13 is burned. The amount of such occurrences is greatly suppressed. That is, it is possible to achieve the same effect as when the exhaust gas of the diesel engine 1 is purified.

Further, in the present embodiment, since the vibrator 17 is made of a material having high hardness such as ceramics or cemented carbide, it is hard to be broken against the collapse pressure of the cavitation bubbles 22 generated when high frequency vibration occurs. It can be configured so that it can be sufficiently used for a long period of time.

As described above, according to the present embodiment, it is possible to prevent the generation of soot dust without the need for using a device for purifying exhaust gas, and the exhaust gas amount applied to diesel engine vehicles, especially large trucks, etc. It can be applied to a large engine as a simple device. Also,
Unlike conventional exhaust gas purifiers, there is no need to clean the clogs by collecting chemical substances on the catalyst surface, eliminating the work of removing clogged substances. Many effects are achieved in terms of utilization and economy, such as the need for periodical cleaning of the catalyst surface with the passage of time.

In this embodiment, as a basic example, for ease of explanation, one container 14 is provided with one vibrator 1
Although the example in which 7 is arranged as a single body is shown, the present invention is not limited to this, and for example, a plurality of vibrators may be arranged in stages, or the vibrators may be divided and installed in parallel. ,
Of course, various modifications are possible.

When applied to a combustor other than a vehicle, a commercial power source or the like can be used as the basic power source 21a of the high frequency power source device 21.

Second Embodiment (FIGS. 4 and 1) In this embodiment, a giant magnetostrictive material is applied as a vibration source. FIG. 4 is an explanatory diagram showing an enlarged configuration of the fuel reformer according to the present embodiment. Regarding the fuel supply device to which this fuel reforming device is applied, refer to FIG. 1 as it is, and duplicate description will be omitted. Further, in the fuel reformer, the same parts as those in the first embodiment are designated by the same reference numerals in FIG.

As shown in FIG. 4, also in the fuel reformer 10 of this embodiment, a vibration type actuator 16 is provided at the inner bottom portion of a container 14 for containing the fuel 13. The vibratory actuator 16 is configured as a vibrator 17 having a horizontal upper surface, and a flat upper surface 17 a of the vibrator 17 is used for the fuel 1.
3 is in contact with liquid.

In the present embodiment, this vibrator 17
However, for example, it is integrally formed with the vibrating body 23 made of a giant magnetostrictive material that serves as a vibration source of the high-frequency vibration generator 18.
Note that, similarly to the first embodiment, the vibrator 17 may be made of a material having high hardness such as ceramics or cemented carbide, and this may be joined to the vibrating body 23 made of a giant magnetostrictive material.

A coil 24 for high frequency current is provided around the vibrating body 23, and the high frequency power supply device 2 is attached to this coil 24.
A vibration current is supplied from the cable 1 through the high-frequency current cable 20. The coil 24 is fixed to the stationary portion 26 by the coil fixing fitting 25.

In the present embodiment having such a configuration,
A high frequency current is supplied from the high frequency power supply 21 to the coil 24, and a high frequency magnetic force is generated by the coil 24. Due to this high-frequency magnetic field, the vibrating body 23 made of a giant magnetostrictive material arranged inside the coil 24 repeatedly contracts and expands in the axial direction, and the contraction and expansion are transmitted to the vibrator 17, and the vibrator 17 The cavitation generating portion that is the surface 17a generates high frequency vibration.

Due to this action, cavitation bubbles 22 are generated in the fuel 13 in the fuel 13, as in the first embodiment. Then, due to the reciprocating motion of the vibrator 17, the cavitation bubbles 22 are repeatedly formed and collapsed, whereby shock waves are continuously generated, and as a result, high pressure is generated. Therefore, also in this embodiment, the fuel 1
The polymer chain of No. 3 is divided, and the composition amount of the polymer component in which soot and dust are likely to be generated during combustion is reduced. As a result, when used as the fuel of the diesel engine 1, it is possible to suppress the generation of soot and dust as compared with the untreated fuel, and obtain the function equivalent to purifying the exhaust gas of the diesel engine 1. The same effect as that of the first embodiment is achieved.

Since the giant magnetostrictive material is capable of vibrating in the ultrasonic range, it can be vibrated by ultrasonic waves to generate clusters of molecules in the fuel 13, which is a polymer liquid, as in the first embodiment. It is possible to easily obtain the cluster decomposition action by the ultrasonic vibration. Therefore, due to the synergistic effect of the impact pressure due to cavitation and the cluster decomposition action due to ultrasonic vibration, it is possible to effectively physically cut the polymer chains constituting the fuel.

In particular, in the case of a magnetostrictive material, the stroke in the axial direction can be made 5 to 10 times larger than that of the piezoelectric ceramic material, so that the stroke is large in the same ultrasonic frequency range, The amount of cavitation bubbles generated can be increased. Therefore, in this embodiment, the fuel reforming can be performed in a shorter time. Since the giant magnetostrictive material is a high hardness material, the vibrating body 23 and the vibrator 1
By integrating 7 and 7, the structure can be simplified.

Third Embodiment (FIGS. 5 and 1) In this embodiment, a plurality of vibrating plates as vibration type actuators are arranged in a container for flowing fuel along one direction to reform fuel. It is possible to perform with high efficiency. FIG. 5 is an explanatory diagram showing an enlarged configuration of the fuel reformer according to the present embodiment. The fuel reformer of this embodiment is also applied to the diesel engine 1 shown in FIG. 1, but this fuel reformer differs from the first and second embodiments in that it is located downstream of the fuel supply pump. Placed on the side.

As shown in FIG. 5, the container 14 has a cylindrical space having a predetermined axial length. For example, the axial center is arranged in the vertical direction.
Are formed. A fuel inlet 28 communicating with the flow path 27 is provided at the upper end of the container 14, and a fuel outlet 29 is provided at the lower end.
Is provided. Then, after the fuel 13 supplied from the fuel supply pump 11 is introduced from the fuel inlet 28, it flows in the container 14 and is continuously discharged from the fuel outlet 29, passes through the flow rate adjusting valve 30, and then the fuel injection pump 2 To be supplied to.

A vertically long columnar guide rod 31 is inserted into the center of the container 14 over the upper and lower ends of the container 14. For example, a flange 32 provided at the upper end of the guide rod 31 is fastened by a bolt 33 or the like. By container 1
It is fixed at 4. A plurality of short tube-shaped elastic supports 34 are fitted to the outer peripheral portion of the guide rod 31 at substantially equal intervals. The guide rod 31 is positioned between the elastic supports 34, and the guide rod 31 serves as a vibration type actuator. A plurality of disc-shaped vibrating plates 35 made of a magnetostrictive material are fitted in a step-like manner at predetermined intervals. The vibrating plates 35 are vertically movable along the axial direction of the guide rod 31, that is, the vertical direction b which is the flow direction of the fuel, while being supported by the elastic supports 34 from the vertical direction. . A slight gap δ is provided between the outer peripheral edge of each vibrating plate 35 and the inner peripheral surface of the container 14 forming the flow path 27 in order to prevent these contact.

In each of the vibrating plates 35, liquid passage holes, for example, small-diameter holes 36, which can pass the fuel 13 in the vertical direction are alternately arranged at the center side and the outer peripheral side of the vibrating plate 35, respectively. That is, the vibrating plates 35 that are vertically adjacent to each other are provided in different positions on the inner and outer circumferences. And the container 14
Inside each, a coil 37 for high frequency current is provided around each vibrating plate 35. These coils 37
From the high frequency power supply device 21 to the high frequency current cable 20
An electric current for vibration is supplied to the vibrating plates 35 by the high-frequency magnetic field, and vertical vibration is generated in each vibrating plate 35. In the high frequency power supply device 21, the first,
Similar to the second embodiment, a high frequency current is generated by supplying power from a vehicle battery or the like.

In this embodiment having such a configuration,
A high frequency current is supplied from the high frequency power supply device 21 to each coil 37, and the high frequency current causes each coil 37 to generate a high frequency magnetic force. Due to these generated magnetic fields, each vibrating plate 35 arranged inside thereof repeatedly contracts and expands in the axial direction, and the contraction and expansion are transmitted to the cavitation generating part which is the surface of the vibrating plate 35, and cavitation occurs. The parts generate vibration at high frequency.

By this action, the cavitation bubbles 22 are generated between the vibrating plates 35 in the fuel 13 flowing from the upper side to the lower side alternately in a meandering state through the small diameter holes 36.
A shock wave is continuously generated by continuously forming and collapsing, and as a result, a high pressure is generated in the fuel 13. Therefore, in the present embodiment, while the fuel 13 continuously flows, the polymer chain of the fuel 13 is divided, and the composition amount of the polymer component in which soot and dust are likely to be generated during combustion is reduced in the diesel engine. 1 is supplied. As a result, when used as the fuel of the diesel engine 1, it is possible to suppress the generation of soot and dust as compared with the untreated fuel, and obtain the function equivalent to purifying the exhaust gas of the diesel engine 1. The same effects as those of the first and second embodiments are exhibited.

According to the present embodiment, in addition to the same effects as in the above-described respective embodiments, the fuel 13 is continuously passed between the plurality of vibrating plates 35, so that the formation / collapse of the cavitation bubbles 22 is repeated. Therefore, the processing time per unit volume can be lengthened. Therefore, by controlling the flow rate of the fuel 13 supplied to the fuel reformer,
Stable reforming treatment can be performed efficiently.

In this embodiment, the case where the axial center of the container, that is, the flow direction of the fuel 13 is the vertical direction has been described, but this direction can be set to any direction such as a lateral direction or an oblique direction.

Fourth Embodiment (FIGS. 6, 7, and 1) In this embodiment, a rotary actuator is applied in place of the vibration actuator of each of the above embodiments. FIG. 6 is an explanatory view showing an enlarged configuration of the fuel reforming apparatus according to the present embodiment, and FIG. 7 is an enlarged sectional view taken along the line AA of FIG. Regarding the fuel supply device to which this fuel reforming device is applied, refer to FIG. 1 as it is, and duplicate description will be omitted.

As shown in FIGS. 6 and 7, in this embodiment, the container 14 has a cylindrical shape which constitutes a vertically long flow path,
A fuel inlet 38 is provided at the upper end of the container 14, and a fuel outlet 39 is provided at the lower end. That is, also in the present embodiment, the vertically long flow path 40 is formed in the container 14, and the fuel 13 supplied from the fuel tank 9 receives the fuel 13 from the fuel inlet 3.
8 is introduced into the container 14, then flows through the flow path 40, and is continuously discharged from the fuel outlet 39.
After that, the fuel is supplied to the fuel supply pump 11.

A rotor 42 having a predetermined diameter is arranged in the center of the container 14, and shafts 43 and 44 integrally provided at the upper and lower ends of the rotor 42 are connected to the container 14 via an upper bearing 45 and a lower bearing 46. It is rotatably supported by. An output shaft 48 of a high speed rotation motor 47 is connected to the upper shaft 43 via a coupling 49. Driving power is supplied to the motor 47 from the power supply device 51 via the cable 50, whereby the motor 47 rotates,
As a result, the rotor 42 is rotated at high speed in one direction c. The power supply device 51 receives power from a vehicle battery or the like, as in the above-described embodiments.

As shown in FIGS. 6 and 7, a large number of projections 52 are provided on the outer peripheral surface of the rotor 42 at regular intervals in the circumferential direction and at regular intervals in the axial direction. A large number of protrusions 52 in the fuel 13
It is designed to rotate together with it.

According to the structure of this embodiment, the rotor 42 having the protrusion 52 is rotated in the fuel 13 at a high speed, so that the surface of the protrusion 52 in the rotation advancing direction c, that is, the surface against the fuel 14. Is applied to the fuel 13, and conversely, a negative pressure is generated on the opposite surface due to the pressure decrease. Then, since the position in the fuel 13 that becomes the pressurization and the negative pressure constantly fluctuates, the cavitation bubbles 22 are continuously generated in the fuel 13 on the counter pressure side, and the cavitation bubbles are added to the generated cavitation bubbles. Pressure side protrusion 5
The two immediately collide, and the cavitation bubbles immediately collapse. That is, also in this embodiment, the generation / collapse of the cavitation bubbles 22 is repeated as in the case of the high frequency vibration according to each of the above embodiments.

Therefore, the molecular composition of the fuel can be changed by the impact force generated when the cavitation bubbles 22 collapse. In this case, by rotating the rotor 42 at a high speed, it is possible to generate ultrasonic waves by pressure fluctuation of each protrusion 52 due to fuel agitation. As a result, also in the present embodiment, it is possible to cut the polymer chains of the fuel by the synergistic effect of the cluster decomposition effect by ultrasonic waves and the impact pressure of cavitation. When the rotation speed of the rotor 42 is low, ultrasonic waves are not generated and a synergistic effect with ultrasonic waves cannot be expected, but fuel reforming due to repeated generation and collapse of the cavitation bubbles 22 can be sufficiently achieved. .

According to this embodiment, since the apparatus structure is relatively simple, it can be manufactured at low cost, and practical advantages such as easy application can be obtained.

Other Embodiments In the above-described embodiments, the reforming of the fuel supplied to the diesel engine is applied, but the present invention is not limited to this. For example, it can be applied to reforming fuels of various combustion devices such as boilers, and can also be applied to reforming of various polymer compounds used in various chemical plants in addition to fuels. . For example, it is possible to detoxify the flon or PCB oil by arranging a polymer compound reforming device in the step of treating harmful organic substances such as freon solution or PCB oil. When the actuator is configured to ultrasonically vibrate by applying a giant magnetostrictive material or the like, it can be effectively used in a static fuel reformer or the like.

[0057]

As described above, according to the present invention, the ultrasonic vibration action on the liquid of the polymer compound such as the organic fuel, the impact pressure action generated when the cavitation bubbles collapse, or the ultrasonic vibration and the cavitation bubble are generated. By interacting with the impact pressure generated during the disintegration of the polymer, the polymer chains in the polymer compound can be physically broken, and when applied to fuel, etc., soot and dust are not generated, and the processing efficiency is very good. It is possible to obtain various reformed fuels. Further, in the reformer of the present invention, unlike a conventional exhaust gas purifier using a catalyst, there is no need for maintenance such as clogging removal, catalyst replacement, etc., and the polymer compound can be directly acted on only by mechanical action. Since it can be modified, the convenience can be greatly improved by simplifying the device configuration, maintenance-free, and the like.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a fuel supply system to which a fuel reformer according to a first embodiment of the present invention is applied.

FIG. 2 is an enlarged configuration diagram showing the fuel reforming device shown in FIG.

FIG. 3 is a graph showing an operation in the above embodiment.

FIG. 4 is a configuration diagram showing a second embodiment of the present invention.

FIG. 5 is a configuration diagram showing a third embodiment of the present invention.

FIG. 6 is a configuration diagram showing a fourth embodiment of the present invention.

7 is an enlarged cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

1 diesel engine 2 Fuel injection pump 3 pistons 4 cylinders 5 Fuel supply pipe 6 Engine body 7 Output shaft 8 engine exhaust port 9 Fuel tank 10 Fuel reformer 11 Fuel supply pump 12a Primary fuel supply pipe 12b Secondary fuel supply pipe 13 Fuel 14 containers 14a Fuel inlet 14b Fuel discharge port 15 Fuel 16 Vibration type actuator 17 oscillators 17a upper surface 18 High frequency vibration generator 19 Piezoelectric element 20 High frequency current cable 21a Basic power supply 22 cavitation bubbles 23 Vibrating body 24 coils 25 coil fixing bracket 26 Stationary part 27 channels 28 Fuel inlet 29 Fuel outlet 30 Flow control valve 31 Guide rod 32 flange 33 volts 34 Elastic support 35 vibrating plate 36 small hole 37 coils 38 Fuel inlet 39 Fuel outlet 40 channels 41 Flow control valve 42 rotor 43,44 axis 45 upper bearing 46 Lower bearing 47 High-speed rotation motor 48 output shaft 49 Coupling 50 cables 51 power supply 52 protrusions

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) F23K 5/08 F23K 5/08 Z F term (reference) 2E191 BA12 BA13 BA15 BD11 3K068 AA11 AB35 4G075 AA13 AA32 BA05 BD17 CA23 CA25 DA02 EB01 ED01 ED15 EE12 4H029 CA16

Claims (10)

[Claims] 1. An actuator is placed in a liquid contact state in a container for containing a liquid of a polymer compound, and the actuator is oscillated at high frequency or rotated at a high speed to continuously apply pressure fluctuations to the polymer compound, A method for modifying a polymer compound, which comprises reducing the molecular weight of the polymer compound by repeating the continuous generation and collapse of cavitation bubbles in a liquid of the molecule compound. 2. An accommodating portion for accommodating a liquid of a polymer compound,
A vibration type actuator which is provided in the housing and is capable of vibrating in a direction perpendicular to the surface in contact with the polymer compound, and a high frequency vibration generation for vibrating the vibration type actuator at a high frequency in a direction perpendicular to the surface in contact with the liquid And a device for reforming a polymer compound. 3. The polymer compound reforming apparatus according to claim 2, wherein the vibration actuator has a piezoelectric ceramics vibrator or a giant magnetostrictive material vibrator as a vibration source. Reformer. 4. The polymer compound reforming apparatus according to claim 3, wherein a container for flowing the liquid of the polymer compound along one direction, and a stepped shape in the container with intervals in the flowing direction of the liquid. A plurality of vibrating plates as arranged vibration type actuators are provided, and a liquid passage hole is formed in each of these vibrating plates in a different arrangement between adjacent vibrating plates. Quality equipment. 5. An accommodating portion for accommodating a liquid of a polymer compound,
A rotary actuator having a plurality of protrusions provided on the outer peripheral surface of a rotor, which is provided in the accommodating portion, and which can be rotated by contacting the polymer compound and the outer peripheral surface with the liquid, and the rotary actuator having a high speed around its axis. A reforming device for a polymer compound, comprising: a rotation driving device for rotating. 6. The polymer compound reforming apparatus according to claim 2, wherein the actuator is set to apply ultrasonic vibration to the polymer compound. Quality equipment. 7. The polymer compound reforming apparatus according to any one of claims 2 to 6 is arranged in a fuel supply passage of a combustor such as an engine or a boiler, and is applied for fuel reforming. Characteristic fuel reformer. 8. The fuel reformer according to claim 7,
A fuel reforming device, characterized in that a housing portion is arranged in front of a fuel injection pump of a diesel engine, and reformed fuel is supplied to the fuel injection pump. 9. The polymer compound reforming apparatus according to any one of claims 2 to 6 is arranged in a process for treating harmful organic substances such as a CFC solution or PCB oil to change the chemical composition of the CFC or PCB oil. A device for reforming a polymer compound, which is made harmless. 10. The polymer compound reforming apparatus according to any one of claims 2 to 8, wherein a high hardness material such as ceramics is used for a liquid contact portion of an actuator that generates cavitation bubbles, and the actuator is broken by cavitation. A polymer compound reforming device characterized by preventing touch.