JP7076091B2 - Heating / cooling agitator - Google Patents

Description

The present invention relates to a heating / cooling stirring device for stirring an object to be processed contained in a container while heating / cooling.

In recent years, in various fields such as a polymerization reactor that combines monomers to generate a huge polymer substance and a sludge treatment device that recovers methane gas, which is an energy source, from sewage sludge, the object to be treated is stirred while being heated and cooled. A heating / cooling / stirring device configured to do so is utilized.

As a configuration for stirring while heating the object to be processed, conventionally, heating means such as a resistance heater, steam, hot water and oil are arranged outside the container in which the object to be processed is housed, and the heating means is used. A configuration is known in which the object to be treated is heated by heating the container (see, for example, Utility Model Registration No. 3012756 (Patent Document 1)). Further, as a configuration for stirring while cooling the object to be processed, a configuration in which a cooling means such as a fluid passage is arranged outside the container and the container is cooled by using the cooling means to cool the object to be processed. It is known (for example, see Mizushina et al., "Experimental study on heat transfer coefficient of stirring tank wall of Newton fluid", Chemical Engineering Proceedings vol.30, No.8 (1966) (Non-Patent Document 2)).

Utility model registration No. 3012756

Shimada et al., "Temperature uniformity and heat transfer characteristics in simultaneous heating and stirring operation of water candy with induction heating and stirring blades", Chemical Engineering Society, 81st Annual Meeting (2016) Mizushin et al., "Experimental study on heat transfer coefficient of agitating tank wall of Newtonian fluid", Chemical Engineering Proceedings vol. 30, No. 8 (1966)

However, in the configuration in which the heating means and the cooling means are arranged outside the container, when the viscosity of the object to be processed becomes high, it becomes difficult to stir the object to be processed, so that there is a problem that the temperature variation of the object to be processed becomes large. .. Further, since the flow of the object to be processed is deteriorated in the vicinity of the tank wall of the stirring tank, there is a problem that the heat transfer characteristics are deteriorated and the heat responsiveness is also deteriorated.

As a result of diligent research to solve the above problems, the inventors of the present application have found that the temperature variation in a highly viscous object to be treated can be reduced by electromagnetically induced heating the stirring blade (for example, Shimada et al., Et al. "Temperature uniformity and heat transfer characteristics in simultaneous heating and stirring operation of water candy by induction heating and stirring blades", Chemical Engineering Society, 81st Annual Meeting (2016) (Non-Patent Document 1)).

However, on the other hand, in order to electromagnetically induce and heat the stirring blade, it is necessary to arrange the electromagnetic induction coil outside the container, so that there is a concern that there is a limit to the miniaturization of the physique of the heating / cooling stirring device. Further, in order to sufficiently interlink the alternating magnetic field generated by the electromagnetic induction coil with the stirring blade in the container, the container must be formed of a non-conductive material, such as the shape and size of the container and the shape of the stirring blade. Is concerned that it will be restricted.

Further, by arranging the electromagnetic induction coil outside the container, Joule heat (copper loss) generated in the coil is dissipated into the air as a loss, so that there is a concern that the heating efficiency is low.

Furthermore, in response to the demand for high-speed control of the temperature of the object to be processed and power saving in the heating / cooling / stirring device, improvement of heating / cooling efficiency has become an important issue.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a heating / cooling stirring device capable of realizing high heating / cooling efficiency and miniaturization of the device.

According to an aspect of the present invention, the heat / cooling / stirring device is a device for stirring the object to be processed contained in the container while heating / cooling, and the stirring blades rotatably arranged in the container. Heat can be exchanged between the energizing unit arranged so that heat can be exchanged between the stirring blade inside the container, the feeding unit arranged outside the container and supplying current to the energizing unit, and the stirring blade inside the container. It is provided with a cooling pipe that is arranged and allows the refrigerant to flow inside, and a cooling unit that is arranged outside the container and circulates the refrigerant inside the cooling pipe.

According to the present invention, since the energizing unit and the cooling pipe are arranged so as to exchange heat with the stirring blade in the container, the stirring blade can unify the stirring and heating / cooling of the object to be processed. .. As a result, the object to be processed can be heated and cooled at high speed regardless of the viscosity of the object to be processed, and high heating and cooling efficiency can be realized. Therefore, it is possible to contribute to speeding up the temperature control of the object to be processed and saving power of the heating / cooling / stirring device. Further, since the heating means and the cooling means outside the container are not required, the heating / cooling / stirring device can be downsized.

It is a figure which showed schematic the structure of the heating-cooling agitating apparatus which concerns on Embodiment 1 of this invention. FIG. 1 is a cross-sectional view taken along the line II-II of FIG. It is a figure explaining the electric circuit structure of the heating / cooling agitating apparatus which concerns on Embodiment 1. FIG. It is a figure for demonstrating the heat transfer characteristic and heat responsiveness in an external heating / cooling system and an internal heating / cooling system. It is a figure which showed schematic the heat transfer path in the heating-cooling agitator which concerns on Embodiment 1. FIG. It is a figure for demonstrating an example of temperature control of the object to be processed by the heating-cooling agitator which concerns on Embodiment 1. FIG. It is a figure which showed schematic the structure of the heating-cooling agitating apparatus which concerns on Embodiment 2 of this invention. It is a figure which showed schematic the structure of the heating-cooling agitating apparatus which concerns on Embodiment 3 of this invention. FIG. 8 is a cross-sectional view taken along the line IX-IX of FIG. It is a figure which showed schematic the structure of the heating-cooling agitating apparatus which concerns on Embodiment 4 of this invention. FIG. 10 is a cross-sectional view taken along the line XI-XI of FIG. It is a figure which showed roughly the other configuration of the heating / cooling / stirring apparatus according to the fourth embodiment. It is sectional drawing along the line XIII-XIII of FIG. It is a figure explaining the structural example of the stirring blade and the energizing part applied to the heating-cooling stirring apparatus which concerns on Embodiment 4. FIG. It is a figure explaining the structural example of the stirring blade and the energizing part applied to the heating-cooling stirring apparatus which concerns on Embodiment 4. FIG. It is a figure explaining the structural example of the stirring blade and the energizing part applied to the heating-cooling stirring apparatus which concerns on Embodiment 4. FIG. It is a figure explaining the structural example of the stirring blade and the energizing part applied to the heating-cooling stirring apparatus which concerns on Embodiment 4. FIG. It is a figure which showed schematic the structure of the heating-cooling agitating apparatus which concerns on Embodiment 6 of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The same or corresponding parts in the figure are designated by the same reference numerals and the description thereof will not be repeated.

[Embodiment 1]
The heating / cooling / stirring device 100 according to the first embodiment of the present invention is a device for stirring the object to be processed 20 housed in the container 21 while heating / cooling. The heating / cooling / stirring device 100 can be applied to a polymerization reactor that produces a huge polymer substance by combining raw material monomers, for example.

FIG. 1 is a diagram schematically showing the configuration of the heating / cooling / stirring device 100 according to the first embodiment of the present invention. Note that FIG. 1 shows a cross-sectional structure of the heating / cooling / stirring device 100 along the axial direction AX.

With reference to FIG. 1, the heating / cooling stirring device 100 according to the first embodiment includes a stirring blade 1, a rotating shaft 2, a feeding unit 3, conductive wires 7a and 7b, a cooling unit 8, and a refrigerant passage 9a. , 9b, an energizing portion 10, a cooling pipe 13, a container 21, and a lid portion 22.

FIG. 1 shows a state in which the object to be processed 20 is housed inside the container 21. A lid 22 is attached to the container 21. The container 21 and the lid 22 are made of, for example, resin. The container 21 and the lid portion 22 may be made of either a conductor or a non-conductor.

The object 20 to be treated is, for example, a raw material monomer. However, the object to be treated 20 is not limited to the raw material monomer, and can be applied to any of gas, liquid, solid (powder, granule, etc.) and a mixture thereof.

The stirring blade 1 is arranged inside the container 21, and at least a part thereof is immersed in the object 20 to be processed. The stirring blade 1 is, for example, a max blend blade. As will be described later, as the stirring blade 1, a stirring blade having an appropriate shape depending on the viscosity of the object to be processed 20 can be used.

A conductor (first conductor) is formed in at least a part of the stirring blade 1. At least a part of the stirring blade 1 is typically made of metal. At least a portion thereof is made of, for example, stainless steel (SUS304). Specifically, the stirring blade 1 can adopt a structure in which a part thereof is made of a conductor and the other part is made of a non-conductor. Alternatively, the stirring blade 1 can adopt a structure in which the entire stirring blade 1 is made of a conductor. In the following description, the stirring blade 1 which is entirely made of a conductor will be illustrated.

One end of the rotary shaft 2 in the axial direction AX is connected to the main shaft of the stirring blade 1 inside the container 21. The rotary shaft 2 is made of, for example, stainless steel (SUS304). A sealing member (not shown) is arranged between one end of the rotating shaft 2 and the main shaft, and the gap between the one end of the rotating shaft 2 and the main shaft can be sealed. For example, an insulating O-ring can be used as the sealing member.

The rotation shaft 2 is inserted into the through hole 22a formed in the lid portion 22. A sealing member 23 is arranged between the rotating shaft 2 and the through hole 22a. The sealing member 23 is configured to be able to seal the gap between the rotating shaft 2 and the through hole 22a. The sealing member 23 is, for example, a sealing tape. In this case, by inserting the rotary shaft 2 into the through hole 22a with the sealing tape wrapped around the outer peripheral surface of the rotary shaft 2, the gap between the rotary shaft 2 and the through hole 22a is sealed by the sealing member 23. Can be done.

Outside the container 21, the other end of the rotary shaft 2 in the axial direction AX is connected to a rotary shaft of a motor (not shown). The stirring blade 1 is rotated by rotationally driving the rotary shaft 2 by a motor. As a result, the object to be treated 20 is stirred.

The power feeding unit 3 is arranged outside the container 21 and is configured to supply a current to the energizing unit 10. In this embodiment, a configuration in which the feeding unit 3 supplies a high frequency current to the energizing unit 10 will be described. However, the power feeding unit 3 may be configured to supply a direct current to the energizing unit 10.

Specifically, the power feeding unit 3 includes a slip ring 4, an AC power supply 5, a high frequency transformer 6, and conductive wires 7a and 7b. The AC power source 5 is, for example, a commercial power source. The high frequency transformer 6 receives power from the AC power source 5 to generate high frequency AC power. The slip ring 4 includes a carbon brush (not shown) electrically connected to the high frequency transformer 6, and the conductive wire 7a is brought into surface contact with the conductive wires 7a and 7b which are rotating bodies. , 7b is configured to supply a high frequency current. The conductive wires 7a and 7b extend to the inside of the container 21 through the space formed inside the rotating shaft 2.

The energizing unit 10 is arranged inside the container 21. Inside the container 21, the conductive wire 7a is electrically connected to one end of the energizing portion 10. The conductive wire 7b is electrically connected to the other end of the energized portion 10. As a result, a path for supplying a high-frequency current from the feeding unit 3 to the energizing unit 10 is formed.

The energizing unit 10 is arranged so that heat can be exchanged with the stirring blade 1. In the first embodiment, the energizing unit 10 is arranged close to the surface of the blade portion of the stirring blade 1. In the example of FIG. 1, the energizing portion 10 is joined to the blade portion of the stirring blade 1. If heat exchange is possible between the stirring blade 1 and the energizing portion 10, there may be a gap between the surface of the stirring blade 1 and the energizing portion 10.

However, in the heating / cooling / stirring device 100 according to the present embodiment, since the feeding unit 3 adopts a configuration in which a high-frequency current is supplied to the energizing unit 10, the distance between the surface of the stirring blade 1 and the cooling pipe 13 is adopted. Is preferably equal to or less than the threshold value.

The above-mentioned "threshold value" is an interval at which an electric bond can be formed between the energized portion 10 and the stirring blade 1. The "interval in which an electrical bond can be formed" means an interval in which the phenomenon of electromagnetic induction can occur. In other words, the energizing unit 10 is arranged so as to be able to form an electrical bond with the stirring blade 1. In the present embodiment, an electric bond is formed between the energized portion 10 and the stirring blade 1 by passing a high-frequency current through the energized portion 10. Therefore, as will be described later, an electromagnetic induction action is exerted between the two. It will be possible to use it.

The cooling unit 8 is arranged outside the container 21 and is configured to circulate the refrigerant 14 in the cooling pipe 13. As the refrigerant 14, for example, an insulating medium such as pure water or insulating oil, or cooling water such as water mixed with an antifreeze liquid can be used. The cooling unit 8 includes a heat exchanger 82 for cooling the refrigerant 14, a pump 84, a rotary joint 86, a supply pipe 8a and a discharge pipe 8b for connecting the heat exchanger 82 and the rotary joint 86, and a refrigerant passage 9a. Includes 9b.

The heat exchanger 82 is provided in, for example, a radiator or the like, and cools the refrigerant 14 by using external air. The cooled refrigerant 14 is supplied to the rotary joint 86 by the pump 84 through the supply pipe 8a. The rotary joint 86 is configured to supply the refrigerant 14 to the refrigerant passage 9a and to supply the refrigerant 14 discharged from the refrigerant passage 9b to the heat exchanger 82 through the discharge pipe 8b.

The refrigerant passages 9a and 9b extend to the inside of the container 21 through the space formed inside the rotating shaft 2. The cooling pipe 13 is arranged inside the container 21. Inside the container 21, the refrigerant passage 9a is connected to one end of the cooling pipe 13, and the refrigerant passage 9b is connected to the other end of the cooling pipe 13. As a result, a path through which the refrigerant 14 circulates between the cooling unit 8 and the cooling pipe 13 is formed.

The cooling pipe 13 is arranged so as to be heat exchangeable with the stirring blade 1. In the first embodiment, the cooling pipe 13 is arranged close to the surface of the blade portion of the stirring blade 1. In the example of FIG. 1, the cooling pipe 13 is joined to the blade portion of the stirring blade 1. If heat exchange is possible between the stirring blade 1 and the cooling pipe 13, there may be a gap between the surface of the stirring blade 1 and the cooling pipe 13.

Next, the detailed configuration of the energizing unit 10 and the cooling pipe 13 shown in FIG. 1 will be described.
FIG. 2 is a cross-sectional view taken along the line II-II of FIG. With reference to FIG. 2, the current-carrying portion 10 and the cooling pipe 13 are joined to the surface of the flat plate portion of the stirring blade 1.

The energizing portion 10 has a conductor 11 (second conductor) and an insulator 12 that covers the outer periphery of the conductor 11. The conductor 11 is typically made of metal. The conductor 11 is formed of, for example, an aluminum (Al) plate having a thickness of about several mm. The insulator 12 is made of, for example, a metal oxide. When the conductor 11 is an aluminum plate, the insulator 12 can be formed of alumina (Al ₂ O ₃ ).

The energizing portion 10 is joined to the stirring blade 1 using, for example, an adhesive. As a result, the conductor 11 is joined to the stirring blade 1 via the insulator 12. That is, the energizing portion 10 is joined to the stirring blade 1 while maintaining electrical insulation.

The cooling pipe 13 has a hollow shape, and the refrigerant 14 can be passed through the inside. The cooling tube 13 is made of a non-conductive material and is made of, for example, an insulating resin. The cooling pipe 13 is joined to the stirring blade 1 using, for example, an adhesive. As a result, heat exchange can be performed between the stirring blade 1 and the refrigerant 14, so that the stirring blade 1 can be cooled.

As another embodiment in which the energizing unit 10 and the cooling pipe 13 are joined to the stirring blade 1, the energizing unit 10 and the cooling pipe 13 may be screwed to the stirring blade 1. Alternatively, the current-carrying portion 10 and the cooling pipe 13 may be simply superposed on the stirring blade 1 without using a fixing member such as an adhesive or a screw.

In FIG. 2, the energizing unit 10 and the cooling pipe 13 are arranged close to the same surface of the stirring blade 1, but the arrangement is not limited to this. For example, the energizing unit 10 may be arranged close to the first surface of the stirring blade 1, and the cooling pipe 13 may be arranged close to the second surface different from the first surface.

Next, with reference to FIG. 3, the electric circuit configuration of the heating / cooling / stirring device 100 according to the present embodiment will be described.

With reference to FIG. 3, the high frequency transformer 6 receives power from the AC power source 5 to generate high frequency AC power. The slip ring 4 receives high-frequency AC power from the high-frequency transformer 6 and transmits power to the conductive lines 7a and 7b. As a result, a high frequency current is supplied to the energized portion 10 through the conductive wires 7a and 7b. A direct current (DC) cut capacitor C1 is connected to the current path for supplying a high frequency current to the energized unit 10.

When a high-frequency current is passed through the energizing unit 10, an alternating magnetic field that changes with time is generated. When this alternating magnetic field is interlinked with the conductor of the stirring blade 1, an electromagnetic induction action is generated inside the conductor to induce an electromotive force. This electromotive force generates an eddy current (eddy current) in the conductor. Eddy currents are converted to Joule heat by the electrical resistance of the conductor. The Joule heat generated in the conductor of the stirring blade 1 is transferred to the object to be processed 20 to heat the object to be processed 20.

As described above, in the heating / cooling stirring device 100 according to the first embodiment, by electromagnetically induced heating the stirring blade 1, the object to be processed 20 can be heated by receiving heat from the stirring blade 1. That is, the heating / cooling / stirring device 100 has a heat source for heating the object to be processed 20 inside the container 21. In the present specification, such a heating method is referred to as an "internal heating method". On the other hand, a heating method having a heat source for heating the object 20 to be processed outside the container 21 is referred to as an “external heating method”.

In the internal heating method, since the stirring blade 1 can unify the stirring and heating of the object to be processed 20, the stirring and heating of the object to be processed 20 are performed separately inside and outside the container 21 as compared with the external heating method. Therefore, good heat transfer characteristics can be obtained. This makes it possible to promote uniform temperature of the object 20 to be treated. Further, since the rise time of the temperature of the object to be processed 20 at the time of heating can be shortened, high-speed temperature control becomes possible.

In particular, in the heating / cooling / stirring device 100 according to the first embodiment, the high-frequency current current-carrying portion 10 is arranged inside the container 21 so as to be able to form an electrical bond with the stirring blade 1. In the present specification, the internal heating method in which the energizing portion is arranged in the container is also referred to as "internal energizing type internal heating method". On the other hand, the internal heating method in which the energizing portion is arranged outside the container is also referred to as an "external energizing type internal heating method".

In the internal energization type internal heating method, since the energizing portion 10 can be arranged close to the stirring blade 1, the alternating magnetic field generated by the energizing portion can be sufficiently interlocked with the stirring blade 1. Therefore, there are no restrictions on the arrangement position and shape of the stirring blade 1, and the degree of freedom in design can be increased.

Further, since the energizing portion 10 can be formed of a conductor such as an aluminum plate, an appropriate shape can be taken according to the shape of the stirring blade 1. For example, if the energizing portion 10 is a thin-film conductor, the stirring blade 1 does not become large by arranging the energizing portion 10.

Further, as will be described later, the internal energization type internal heating method can realize higher heating efficiency than the external energization type internal heating method.

In the heating / cooling / stirring device 100 according to the first embodiment, a cooling pipe 13 for passing a refrigerant 14 for cooling the object to be processed 20 is further provided inside the container 21. In the present specification, a cooling method in which the container 21 has a cooling means for cooling the object to be processed 20 in this way is referred to as an “internal cooling method”. On the other hand, a cooling method having a cooling means outside the container 21 is also referred to as an "external cooling method".

As described above, the heating / cooling / stirring device 100 according to the first embodiment employs an internal heating method and an internal cooling method (hereinafter, collectively referred to as “internal heating / cooling method”). Hereinafter, the heat transfer characteristics and heat response characteristics in the internal heating / cooling method will be compared with the heat transfer characteristics and heat response characteristics in the external heating method and the external cooling method (hereinafter collectively referred to as “external heating / cooling method”). Consider while.

As shown in FIG. 1, the internal heating / cooling method heats and cools the object to be treated by heating and cooling the stirring blade. On the other hand, the external heating / cooling method is to arrange heating means such as resistance heater, steam, hot water and oil, and cooling means such as refrigerant passage outside the container (stirring tank) to heat and cool the stirring tank wall. It heats and cools the object to be treated.

FIG. 4 is a diagram for explaining heat transfer characteristics and heat responsiveness in the external heating / cooling method and the internal heating / cooling method. The horizontal axis of FIG. 4 indicates the stirring Reynolds number Re, and the vertical axis indicates the Nusselt number Nu.

The stirring Reynolds number Re is a parameter representing the state of the stirring flow of the object to be processed inside the container, and is defined by Re = d ² N / ν. d is the width of the stirring blade, N is the rotation speed of the stirring blade (1 / s), and ν is the kinematic viscosity coefficient (m ² / s). The Nusselt number Nu is a parameter representing the ease with which heat is transferred to the object to be processed, and is defined by Nu = hd / k. h is the heat transfer coefficient (W / ^m 2K), and k is the thermal conductivity (W / mK).

The straight line in FIG. 4 shows the correlation equation described in Non-Patent Document 2 representing the heat transfer characteristic between the stirring tank wall and water as an object to be treated at the time of external cooling. The circles in FIG. 4 are the measurement data obtained by the inventors of the present application in the electromagnetic induction heating experiment of the stirring blade, and the heat during heating between the stirring blade having the shape shown in the upper left of FIG. 4 and water. It shows the transmission characteristics.

The heat transfer correlation equation described in Non-Patent Document 2 represents the heat transfer characteristics during cooling, and the measurement data of the inventors of the present application represent the heat transfer characteristics during heating. It basically represents the heat transfer characteristics of both heating and cooling.

With reference to FIG. 4, it can be seen that the internal heating / cooling method has a higher Nusselt number Nu and better heat transfer performance than the external heating / cooling method. This is because in the configuration in which the stirring blade is heated and cooled, the stirring blade rotates with respect to the object to be processed, so that the rotation speed is the same as the rotation speed between the object to be processed and the stirring blade in the rotation direction of the stirring blade. In the configuration where the stirring tank wall is heated and cooled, the relative speed of the stirring tank is always generated, whereas in the configuration where the stirring blade is rotated, it is covered by the viscosity of the object to be processed in the vicinity of the stirring tank wall. This is because the flow velocity of the processed material is reduced and becomes slower than the rotation speed of the stirring blade.

Further, in order to quickly control the temperature to a predetermined temperature, it is a necessary condition that (i) the time constant during heating and cooling is small, or (ii) the amount of heat during heating and cooling is large.

The heat transfer characteristic affects the time constant of (i) above. For example, consider the thermal responsiveness when heating and cooling are switched in steps to heat and cool the stirring blade or the stirring tank. Generally, the thermal responsiveness is evaluated by the time constant τ (sec) and is obtained by τ = mCp / (hA).

Here, h is the heat transfer coefficient (W / m ² K), A is the heat transfer area (m ² ), hA is the heat conduction (W / K), and m is the mass (kg) of the stirring blade or the stirring tank. , Cp is the specific heat (J / kgK) of the stirring blade or the stirring tank, and mCp is the heat capacity (J / K). That is, the larger the thermal conductance hA and the smaller the heat capacity mCp, the smaller the time constant τ, and as a result, the better the thermal response.

According to FIG. 4, the internal heating / cooling method has 1.3 to 2.2 times better heat transfer characteristics than the external heating / cooling method, and further, in the actual machine, the heat capacity of the stirring blade is It is considered that the heat capacity of the stirring tank is about 1/4 or less. As a result, the time constant of the internal heating / cooling method is about 1/5 or less of the time constant of the external heating / cooling method, and its thermal responsiveness is greatly improved. These effects are expected to become more pronounced as the viscosity of the object to be treated increases.

In particular, in the heating / cooling / stirring device 100 according to the first embodiment, that is, in the internal cooling system, the cooling pipe 13 is arranged so as to be heat exchangeable with the stirring blade 1. Therefore, the stirring blade 1 can unify the stirring and cooling of the object 20 to be processed, and can improve the cooling efficiency and reduce the size of the device.

FIG. 5 is a diagram schematically showing a heat transfer path in the heating / cooling / stirring device 100 according to the first embodiment. In FIG. 5, the electrical connection or electrical coupling between the two components is shown by the dashed line and the thermal connection between the two components is shown by the solid line.

With reference to FIG. 5, the feeding unit 3, the energizing unit 10, and the stirring blade 1 are electrically connected. As a result, the stirring blade 1 is electromagnetically induced and heated by the alternating magnetic field generated by the energizing unit 10 when the high frequency current is supplied from the feeding unit 3. Then, the object to be processed 20 is heated by the thermal connection between the stirring blade 1 and the object to be processed 20.

Further, the energizing unit 10 is thermally connected to the stirring blade 1 and is thermally connected to the object 20 to be processed. When a high-frequency current is passed through the energized portion 10, Joule heat is generated by the electric resistance of the energized portion 10. The Joule heat generated by the energized portion 10 is transferred to the stirring blade 1 and the object to be processed 20, respectively.

As described above, according to the internal energization type, in addition to the Joule heat generated by the stirring blade 1, the Joule heat generated by the energized portion 10 can be used for heating the object 20 to be processed. Therefore, if the input heat amount is the same, the internal energization type can use a larger amount of heat than the external energization type for heating the object 20 to be processed. Therefore, the heating rate of the object to be processed 20 can be increased. Conversely, in order to obtain the same heating rate, the internal energization type can reduce the input heat amount as compared with the external energization type. Therefore, the heating efficiency can be increased and the power consumption can be reduced.

Further, as described above, the internal energization type is more efficient than the external energization type, can input a large amount of heat, and can increase the heating rate of the object to be processed 20, so that the temperature control of the object to be processed 20 has a high response. Sex can be realized.

The cooling pipe 13 is thermally connected to the cooling unit 8 and is thermally connected to the object to be processed 20. As a result, when the cooling unit 8 circulates the refrigerant 14 in the cooling pipe 13, heat exchange is performed between the refrigerant 14 and the object to be processed 20, and the object to be processed 20 is cooled.

The cooling pipe 13 is further thermally connected to the stirring blade 1. Therefore, heat exchange is performed between the refrigerant 14 and the stirring blade 1, and the stirring blade 1 is cooled. As described above, in the internal cooling method, the object to be processed 20 and the stirring blade 1 can be cooled by using the refrigerant 14, so that the cooling rate of the object to be processed 20 can be increased as compared with the external cooling method. Therefore, high responsiveness can be realized in the temperature control of the object 20 to be processed.

As described above, the heating / cooling / stirring device 100 according to the first embodiment is configured to be capable of heating the object to be processed by the internal energization type internal heating method and cooling the object to be processed by the internal cooling method. There is. With such a configuration, in a reaction operation that requires heating and cooling of the object to be processed, it is possible to selectively switch between heating and cooling according to the necessity. Further, since the feeding unit 3 and the cooling unit 8 can be driven independently of each other, each of the heating time and the cooling time can be arbitrarily set.

Further, as described above, the internal energization type internal heating method realizes a high heating rate because of high efficiency and high heat transfer. In addition, the internal cooling method achieves a high cooling rate due to its high heat transfer. Therefore, high responsiveness can be exhibited in the temperature control of the object to be treated by heating and cooling.

FIG. 6 shows an example of temperature control of the object to be processed 20 by the heating / cooling / stirring device 100 according to the first embodiment. FIG. 6 shows an operation of alternately performing heating and heat retention of the object to be treated and cooling and heat retention of the object to be treated.

In the operation shown in FIG. 6, when the object to be processed is heated, the feeding unit 3 is driven with the cooling unit 8 stopped, and a high frequency current is supplied to the energized unit 10. Then, when the temperature of the object to be processed reaches the heating target temperature, the operation of the feeding unit 3 is stopped. Further, when the object to be processed is cooled, the cooling unit 8 is driven with the power feeding unit 3 stopped, and the refrigerant 14 is circulated in the cooling pipe 13. Then, when the temperature of the object to be processed reaches the cooling target temperature, the operation of the cooling unit 8 is stopped.

FIG. 6A shows, as a comparative example, a temporal change in the temperature of the object to be processed when the heating / cooling treatment of the object to be processed is executed using the heating / cooling device adopting the external heating method and the external cooling method. Is shown. FIG. 6B shows the time change of the temperature of the object to be processed when the heating / cooling treatment of the object to be processed is executed by using the heating / cooling stirring device 100 according to the first embodiment.

Comparing FIGS. 6 (A) and 6 (B), it can be seen that in the present embodiment, both the heating rate and the cooling rate are faster and the control response is excellent as compared with the comparative example. According to this, it becomes possible to control the temperature of the object to be processed with high accuracy.

Further, in each of heating and cooling, it is possible to control the temperature to a desired target temperature at high speed, so that heating and cooling can be switched at high speed. Further, by shortening the respective processing times of heating and cooling, the operating time of the heating / cooling stirring device 100 required for one heating / cooling treatment is also shortened. As a result, the power consumption of the heating / cooling / stirring device 100 in one heating / cooling process can be reduced, and as a result, the running cost of the heating / cooling / stirring device 100 can be reduced.

[Embodiment 2]
In the heating / cooling / stirring device 100 according to the first embodiment, by driving the feeding unit 3 and the cooling unit 8 at the same time, heating and cooling of the object to be processed can be performed in parallel. Utilizing this, an arbitrary temperature distribution can be actively formed inside the container 21.

In the second embodiment, the configuration of the heating / cooling / stirring device 100 suitable for forming the temperature distribution inside the container 21 will be described.

FIG. 7 is a diagram schematically showing the configuration of the heating / cooling / stirring device 100 according to the second embodiment of the present invention. FIG. 7 shows a cross-sectional structure of the heating / cooling / stirring device 100 according to the second embodiment along the axial direction AX. In the heating / cooling / stirring device 100 according to the second embodiment, the arrangement of the energizing unit 10 and the cooling pipe 13 is different from that of the heating / cooling / stirring device 100 shown in FIG.

With reference to FIG. 7, the energizing unit 10 is arranged close to the surface of the first portion 110 of the stirring blade 1. In the example of FIG. 7, the energizing portion 10 is joined to the surface of the first portion 110 of the stirring blade 1. As described in the first embodiment, there may be a gap having a size equal to or less than the threshold value between the surface of the stirring blade 1 and the energizing portion 10.

The cooling pipe 13 is arranged close to the surface of the second portion 120 of the stirring blade 1. In the example of FIG. 7, the cooling pipe 13 is joined to the surface of the second portion 120 of the stirring blade 1. As described in the first embodiment, there may be a gap having a size equal to or less than the threshold value between the surface of the stirring blade 1 and the cooling pipe 13.

As shown in FIG. 7, the first portion 110 is located above the second portion 120 in the depth direction (paper surface vertical direction) of the container 21. That is, the energizing portion 10 is arranged in the upper part in the depth direction of the container 21, and the cooling pipe 13 is arranged in the lower part in the depth direction of the container 21.

When a high-frequency current is supplied from the feeding unit 3 to the energizing unit 10, the first portion 110 of the stirring blade 1 is heated by the electromagnetic induction heating action. On the other hand, when the cooling unit 8 circulates the refrigerant 14 in the cooling pipe 13, the second portion 120 of the stirring blade 1 is cooled. As a result, the object to be processed 20 located at the upper part in the depth direction of the container 21 is heated, while the object to be processed 20 located at the lower part in the depth direction is cooled. As a result, in the entire object 20 to be processed, a temperature distribution is formed in which the temperature on the upper side in the depth direction of the container 21 is higher than the temperature on the lower side in the depth direction.

At the left end of FIG. 7, the temperature distribution of the object to be processed 20 in the depth direction of the container 21 is schematically shown. According to this, the object 20 to be treated has a temperature gradient that rises from the bottom of the container 21 toward the top.

In the temperature distribution shown in FIG. 7, the temperature on the high temperature side can be adjusted by varying the magnitude or the energization time of the current supplied from the feeding unit 3 to the energizing unit 10. Further, the temperature on the low temperature side can be adjusted by varying the temperature, flow rate, or flow time of the refrigerant 14 to be passed through the cooling pipe 13 by the cooling unit 8. That is, by controlling the feeding unit 3 and the cooling unit 8 independently of each other, the maximum temperature and the minimum temperature can be arbitrarily set, so that the temperature gradient and the temperature distribution can be freely changed.

As described above, in the heating / cooling / stirring device 100 according to the second embodiment, the temperature distribution can be actively formed inside the container 21 by simultaneously driving the feeding unit 3 and the cooling unit 8. According to this, for example, in a process of crystallizing an object to be treated, it is possible to control the particle size of the crystal.

The driving force for crystallization (called crystallization) is, in principle, the difference in concentration between the concentration of the object to be treated and the solubility, and there are multiple methods such as cooling or evaporation to give this difference in concentration. Typically, there are cases where the solubility is lowered by cooling to precipitate crystals, and cases where the concentration of the object to be treated is increased by heating evaporation to precipitate crystals. When these operations create a supersaturated state, crystallization begins. As shown in FIG. 7, when a temperature distribution is formed in which the upper part of the container 21 in the depth direction is the high temperature part and the lower part in the depth direction is the low temperature part, the crystals produced in the low temperature part have a large particle size. Sinks to the bottom of the container 21. On the other hand, the crystals having a small particle size are carried to the upper part of the container 21 by stirring and melted in the high temperature portion. By repeating this cycle, crystals having a uniformly large particle size are uniformly accumulated at the bottom of the container 21. Therefore, it is possible to obtain crystals having a uniform particle size.

[Embodiment 3]
In the third embodiment, a modified example of the energizing unit 10 and the cooling pipe 13 in the heating / cooling / stirring device 100 according to the first embodiment will be described. The heating / cooling / stirring device 100 according to the third embodiment has the same configuration as the heating / cooling / stirring device 100 according to the first embodiment, except for the energizing unit 10 and the cooling pipe 13.

FIG. 8 is a diagram schematically showing the configuration of the heating / cooling / stirring device 100 according to the third embodiment of the present invention. FIG. 8 shows a cross-sectional structure of the heating / cooling / stirring device 100 according to the third embodiment along the axial direction AX. FIG. 9 is a cross-sectional view taken along the line IX-IX of FIG.

With reference to FIGS. 8 and 9, in the heating / cooling stirring device 100 according to the third embodiment, at least a part of the energizing unit 10 is arranged inside the stirring blade 1. The energizing unit 10 has a conductor 11 and an insulator 12 that covers the outer periphery of the conductor 11. Therefore, the energizing unit 10 is electrically insulated from the stirring blade 1.

At least a part of the cooling pipe 13 is arranged inside the stirring blade 1. Specifically, the flat plate portion of the stirring blade 1 is formed with an opening extending in a direction parallel to the surface thereof. One end of the opening is connected to the refrigerant passage 9a, and the other end of the opening is connected to the refrigerant passage 9b. As a result, the opening can function as a cooling pipe 13 through which the refrigerant 14 flows. Since the refrigerant 14 circulates in the cooling pipe 13, heat exchange can be performed between the stirring blade 1 and the refrigerant 14, so that the stirring blade 1 can be cooled.

In the example of FIGS. 8 and 9, the cooling pipe 13 extends along the outer periphery of the side portion and the bottom portion of the flat plate portion of the stirring blade 1. The energizing portion 10 is spirally arranged on the flat plate portion of the stirring blade 1, and a part thereof is located inside the cooling pipe 13. In the energizing unit 10, as the conductor 11, a conductive coil made of a conductive wire having a small wire diameter such as a litz wire can be used.

According to the heating / cooling / stirring device 100 according to the third embodiment, as in the heating / cooling / stirring device 100 according to the first embodiment, the heating of the object to be processed by the internal energization type internal heating method and the processing by the internal cooling method are performed. It is possible to selectively switch between cooling and cooling of objects.

Specifically, when the object to be processed 20 is heated, the feeding unit 3 is driven with the cooling unit 8 stopped, and a high-frequency current is supplied to the energized unit 10. On the other hand, when the object to be processed 20 is cooled, the cooling unit 8 is driven with the feeding unit 3 stopped, and the refrigerant 14 is circulated inside the cooling pipe 13. Since the feeding unit 3 and the cooling unit 8 can be driven independently of each other, each of the heating time and the cooling time can be arbitrarily set.

Alternatively, by driving the feeding unit 3 and the cooling unit 8 at the same time, heating and cooling of the object to be processed 20 can be performed in parallel. Utilizing this, the temperature distribution of the stirring blade 1 and, as a result, the object 20 to be processed can be actively formed inside the container 21.

In the example of FIG. 8, when the refrigerant 14 is circulated in the cooling pipe 13 while the energizing portion 10 is energized with a high frequency current, the outer peripheral portion of the stirring blade 1 is cooled, while the central portion of the stirring blade 1 is cooled. Be heated. As a result, a low temperature portion is formed on the outer peripheral portion of the stirring blade 1, and a high temperature portion is formed on the central portion of the stirring blade 1.

The temperature of the high temperature portion can be adjusted by varying the magnitude or the energization time of the current supplied from the feeding unit 3 to the energizing unit 10. Further, the temperature of the low temperature portion can be adjusted by adjusting the temperature, flow rate or flow time of the refrigerant 14 to be passed through the cooling pipe 13 by the cooling unit 8. That is, the temperature gradient can be freely changed by controlling the feeding unit 3 and the cooling unit 8 independently of each other. As described above, since an arbitrary temperature distribution can be formed inside the container 21 by heating and cooling the stirring blade 1 itself, an active heating / cooling means can be realized.

[Embodiment 4]
In the first to third embodiments, the configuration in which the energizing unit 10 and the cooling pipe 13 are formed as separate members has been described, but the energizing unit 10 and the cooling pipe 13 may be integrally formed.

In the fourth embodiment, a heating / cooling / stirring device in which an energizing unit and a cooling pipe are integrated will be described.

FIG. 10 is a diagram schematically showing the configuration of the heating / cooling / stirring device 100 according to the fourth embodiment of the present invention. FIG. 10 shows a cross-sectional structure of the heating / cooling / stirring device 100 according to the fourth embodiment along the axial direction AX.

With reference to FIG. 10, the heating / cooling / stirring device 100 according to the fourth embodiment has a current-carrying unit 10, conductive wires 7a, 7b, and a cooling pipe 13 as compared with the heating / cooling / stirring device 100 shown in FIG. The difference is that instead of the refrigerant passages 9a and 9b, the current-carrying portion 15 and the hollow conductive tubes 19a and 19b are provided.

One end of the conductive tubes 19a and 19b is connected to the rotary joint 86. The rotary joint 86 supplies the refrigerant 14 to the conductive pipe 19a, and supplies the refrigerant 14 discharged from the conductive pipe 19b to the heat exchanger 82 through the discharge pipe 8b.

The conductive tubes 19a and 19b extend to the inside of the container 21 through the space formed inside the rotating shaft 2. The slip ring 4 supplies a high-frequency current to the conductive wires 19a and 19b by bringing a carbon brush (not shown) electrically connected to the high-frequency transformer 6 into surface contact with the conductive tubes 19a and 19b which are rotating bodies. ..

The energizing unit 15 is arranged inside the container 21. Inside the container 21, the other end of the conductive tube 19a is electrically connected to one end of the energized portion 15, and the other end of the conductive tube 19b is electrically connected to the other end of the energized portion 15. It is connected to the. As a result, a path for supplying a high-frequency current from the feeding unit 3 to the energizing unit 15 is formed.

FIG. 11 is a cross-sectional view taken along the line XI-XI of FIG. With reference to FIG. 11, the energizing unit 15 has a conductor 16 (second conductor) and an insulator 17 that covers the outer periphery of the conductor 16.

The conductor 16 has a tubular shape having a hollow portion inside. The conductor 16 is typically made of metal. The conductor 16 has a structure that allows the refrigerant 14 to flow through the hollow portion. For the conductor 16, for example, a hollow conductor or a microchannel can be used. As a result, a path through which the refrigerant 14 circulates between the cooling unit 8 and the energizing unit 15 is formed.

The energizing unit 15 is arranged so that heat can be exchanged with the stirring blade 1. In the fourth embodiment, the energizing portion 15 is arranged close to the surface of the flat plate portion of the stirring blade 1. In the example of FIG. 11, the energizing portion 15 is joined to the stirring blade 1 by using, for example, an adhesive. However, as described in the first embodiment, there may be a gap having a size equal to or less than the threshold value between the surface of the stirring blade 1 and the energizing portion 15. As a result, heat exchange can be performed between the stirring blade 1 and the refrigerant 14, so that the stirring blade 1 can be cooled.

As described above, in the heating / cooling / stirring device 100 according to the fourth embodiment, the energizing unit 15 is configured to allow the refrigerant 14 to flow inside. Therefore, the energizing unit 15 can also function as a cooling pipe. In other words, the cooling tube is made of a conductor and is configured to supply a high frequency current from the feeding unit 3. That is, the cooling pipe can also function as an energizing unit.

In the heating / cooling / stirring device 100 according to the fourth embodiment, the heating of the object to be processed by the internal energization type internal heating method and the internal cooling method are also performed in the same manner as in the heating / cooling / stirring device 100 according to the first to third embodiments. It is configured to be feasible to cool the object to be processed. Therefore, since a high heating rate and a high cooling rate are realized, high responsiveness can be exhibited in the temperature control of the object to be processed by heating and cooling.

In particular, in the heating / cooling / stirring device 100 according to the fourth embodiment, the feeding unit 3 and the cooling unit 8 are selectively switched and driven to heat and cool the object to be processed 20 via the energizing unit 15. And can be selectively switched and executed. At this time, since the feeding unit 3 and the cooling unit 8 can be driven independently of each other, each of the heating time and the cooling time can be arbitrarily set.

Specifically, when the object to be processed 20 is heated, the feeding unit 3 is driven with the cooling unit 8 stopped, and a high-frequency current is supplied to the energized unit 15. Further, when the object to be processed 20 is cooled, the cooling unit 8 is driven with the power feeding unit 3 stopped, and the refrigerant 14 is circulated in the energized unit 15.

In the heating / cooling operation described above, the temperature of the object to be processed 20 can be controlled at high speed, so that heating and cooling can be switched at high speed. Further, since the respective processing times of heating and cooling are shortened, the operating time of the heating / cooling stirring device 100 required for one heating / cooling treatment is also shortened. This makes it possible to save power in the heating / cooling / stirring device 100.

FIG. 12 is a diagram schematically showing another configuration of the heating / cooling / stirring device 100 according to the fourth embodiment. FIG. 12 shows a cross-sectional structure of the heating / cooling / stirring device 100 according to the fourth embodiment along the axial direction AX. FIG. 13 is a cross-sectional view taken along the line XIII-XIII in the figure.

With reference to FIG. 13, the stirring blade 1 has a first blade portion 1A and a second blade portion 1B. The first blade portion 1A and the second blade portion 1B are arranged so as to face each other along the axial direction AX. In the example of FIG. 13, the first blade portion 1A and the second blade portion 1B are formed by dividing the flat plate portion of the stirring blade 1 into two along the axial direction AX.

The energizing portion 15 is arranged between the first blade portion 1A and the second blade portion 1B. Specifically, the energizing portion 15 is arranged close to at least one of the first blade portion 1A and the second blade portion 1B.

As shown in FIG. 13, the energizing unit 15 may be a single-winding coil in which the number of coil turns is 1, or may be a multi-winding coil in which the number of coil turns is 2 or more.

According to the example of FIG. 13, since the current-carrying portion 15 is joined to the surface of the first blade portion 1A and the surface of the second blade portion 1B, the Joule heat generated in the current-carrying portion 15 during heating is applied. It can be transmitted evenly to the first blade portion 1A and the second blade portion 1B. Further, during cooling, the refrigerant 14 passing through the inside of the energized portion 15 can evenly absorb heat from the first blade portion 1A and the second blade portion 1B. As a result, the heat transfer coefficient between the stirring blade 1 and the object to be processed 20 can be improved, so that the heating and cooling efficiency can be improved.

[Embodiment 5]
In the fifth embodiment, with reference to FIGS. 14 to 17, a configuration example of the stirring blade and the energizing unit 15 that can be applied to the heating / cooling stirring device 100 according to the third embodiment described above will be described. Since the heating / cooling / stirring device 100 employs an internal energization type internal heating method and an internal cooling method, there are no restrictions on the position and shape of the stirring blade. Therefore, a stirring blade having an appropriate shape can be used according to the viscosity of the object to be treated and the rotation speed of the stirring blade.

First, a configuration example of a stirring blade composed of a disc turbine blade and an energizing unit 15 will be described with reference to FIGS. 14 and 15. The disc turbine blade is a stirring blade mainly used for stirring a low-viscosity object to be processed.

FIG. 14A is a view of the stirring blade 1 as viewed from above the rotating shaft 2. 14 (A) is a cross-sectional view taken along the line XIV-XIV in FIG. 14 (A).

As shown in FIG. 14A, the stirring blade 1 has a disk shape in which a plurality of blades are arranged along the outer periphery thereof. The energizing portion 15 is wound around the outer peripheral surface of the stirring blade 1. In the energizing unit 10, the conductor 16 is, for example, a conductive coil. The conductive coil is made of, for example, aluminum. The insulator 17 that covers the outer periphery of the conductor 16 is made of, for example, alumina.

With reference to FIG. 14B, the energizing portion 15 is arranged in the groove portion 1a formed on the outer peripheral surface of the stirring blade 1. After winding the energizing portion 15, the energizing portion 15 can be arranged inside the stirring blade 1 by impregnating the groove portion 1a with a thermosetting resin.

When the energizing portion 15 is wound around the outer peripheral surface of the stirring blade 1, the surface of the stirring blade 1 has a protrusion, which may impair the original shape of the stirring blade 1. In such a case, the power number of the stirring blade may deviate from the design value, and the stirring power may also deviate from the design value. As shown in FIG. 14B, by embedding the energizing unit 15 in the stirring blade 1, the energizing unit 15 is arranged close to the stirring blade 1 without impairing the original shape of the stirring blade 1. can do.

FIG. 15A is a view of the stirring blade 1 as viewed from above the rotating shaft 2. 15 (B) is a cross-sectional view taken along the line XV-XV in FIG. 15 (B).

With reference to FIG. 15A, the energizing unit 15 is arranged inside the flat surface portion of the stirring blade 1. Specifically, as shown in FIG. 15B, the energizing portion 15 is arranged in the groove portion 1a formed in the flat surface portion of the surface of the stirring blade 1. By impregnating the groove portion 1a with the thermosetting resin after arranging the energizing portion 15, the energizing portion 15 can be arranged inside the stirring blade 1 and the surface of the stirring blade 1 can be smoothed. As a result, the original shape of the stirring blade 1 can be maintained.

Next, a configuration example of a stirring blade composed of a helical blade and an energized portion will be described with reference to FIGS. 16 and 17. The helical blade is a stirring blade mainly used for stirring a highly viscous object to be processed.

FIG. 16 is a view of the stirring blade 1 as viewed from a direction perpendicular to the rotation axis 2. With reference to FIG. 16, the stirring blade 1 has strip-shaped blades arranged in a spiral shape. The energizing portion 15 is wound around the outer peripheral surface of the band-shaped blade. In the energizing unit 15, the conductor 16 is, for example, a conductive coil. The energizing portion 15 is arranged in a groove portion (not shown) formed on the outer peripheral surface of the stirring blade 1. After winding the energizing portion 15, the groove portion is impregnated with a thermosetting resin so that the energizing portion 15 is arranged close to the stirring blade 1 and the outer peripheral surface of the stirring blade 1 is smoothed. Can be done.

A conductor (third conductor) is formed in at least a part of the container 21. The conductor of the container 21 is preferably formed at a position close to the energized portion 15. The position close to the energized portion 15 means a position where the alternating magnetic field generated by the energized portion 15 can be sufficiently interlocked. In the example of FIG. 16, it is preferable to arrange the conductor on the wall surface of the container 21 so as to face the energizing portion 15. By doing so, the container 21 can be electromagnetically induced and heated by interlinking the alternating magnetic field generated by the energizing unit 15 with the conductor of the container 21. Therefore, the heating efficiency can be further improved.

FIG. 17A is a view of the stirring blade 1 as viewed from a direction perpendicular to the rotation axis 2. FIG. 17B is a cross-sectional view taken along the line XVII-XVII in the figure. With reference to FIGS. 17 (A) and 17 (B), the energized portion 15 is arranged in a groove portion (not shown) formed in the spiral wing. Similar to FIG. 15, in FIG. 17, by arranging the energizing portion 15 in the groove formed on the surface of the blade, the original shape of the stirring blade 1 can be maintained.

In the fifth embodiment, a configuration example of the energizing unit 15 in which the energizing unit and the cooling pipe are integrally formed has been described, but the disc turbine blades of FIGS. 14 and 15 and the helical blades of FIGS. 16 and 17 have been described. On the other hand, it is also possible to apply a configuration in which the energizing unit 10 and the cooling pipe 13 are formed as separate members from each other.

[Embodiment 6]
In the above-described first to fourth embodiments, the configuration in which the AC power supply 5 and the energizing unit 10 are brought into contact with each other to supply power in the feeding unit 3 for supplying the high frequency current to the energizing unit 10 (or the energizing unit 15) has been described. However, the same effect as that of the embodiment can be obtained even in a configuration in which power is supplied from the AC power source 5 to the energizing unit 10 in a non-contact manner.

FIG. 18 is a diagram schematically showing the configuration of the heating / cooling / stirring device 100 according to the sixth embodiment of the present invention. FIG. 18 shows a cross-sectional structure of the heating / cooling / stirring device 100 according to the sixth embodiment along the axial direction AX. The basic configuration of the heating / cooling / stirring device 100 according to the sixth embodiment is the same as that of the heating / cooling / stirring device 100 shown in FIG. 1 except for the feeding unit 3.

In the sixth embodiment, the power feeding unit 3 has a power transmitting coil L1 and a power receiving coil L2 instead of the slip ring 4. When the transmission coil L1 receives high-frequency AC power from the high-frequency transformer 6, it transmits power to the power-receiving coil L2 in a non-contact manner through an electromagnetic field generated around the transmission coil L1. That is, the power transmission coil L1 and the power reception coil L2 realize non-contact power supply that transmits electric power in a non-contact manner. As shown in FIG. 18, the power transmission coil L1 is arranged so as to surround the outer periphery of the rotating shaft 2. The power transmission coil L1 can be kept stationary with respect to the rotation of the rotating shaft 2.

The power receiving coil L2 receives high frequency power output from the power transmission coil L1 in a non-contact manner. The power receiving coil L2 is arranged so as to surround the outer periphery of the rotating shaft 2. The power receiving coil L2 is configured to rotate integrally with the rotating shaft 2.

A conductive wire 7a is electrically connected to one end of the power receiving coil L2. A conductive wire 7b is electrically connected to the other end of the power receiving coil L2. As a result, a path is formed in which a high-frequency current is supplied from the power receiving coil L2 to the energized portion 10 through the conductive wires 7a and 7b.

[Application example of heating / cooling agitator]
In the above-described embodiment, the configuration in which the heating / cooling / stirring device of the present invention is applied to a polymerization reactor that produces a huge polymer substance by combining monomers has been described, but the heating / cooling / stirring device of the present invention is a polymerization reaction. It can be applied not only to vessels but also to various fields. For example, sludge treatment equipment that recovers methane gas, which is an energy source from sewage sludge, fermentation treatment equipment that ferments organic substances, evaporators that desolve high-viscosity substances, demonomerize and devolatile, and stir foodstuffs while heating and cooling. The heating / cooling / stirring device of the present invention can be applied to a cooker or the like.

It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Stirring blade, 1a groove part, 1A 1st blade part, 1B 2nd blade part, 2 rotation shaft, 3 feeding part, 4 slip ring, 5 AC power supply, 6 high frequency transformer, 7a, 7b, 19a, 19b conductive wire , 8 cooling part, 8a supply pipe, 8b discharge pipe, 9a, 9b refrigerant path, 10,15 current-carrying part, 11,16 conductor, 12,17 insulator, 13 cooling pipe, 14 refrigerant, 20 object to be treated, 21 Container, 22 lid, 22a through hole, 23 sealing member, 82 heat exchanger, 84 pump, 86 rotary joint, 100 heating / cooling stirrer, 110 first part, 120 second part, L1 transmission coil, L2 Power receiving coil.

Claims (9)

It is a heating / cooling stirring device for stirring the object to be treated contained in the container while heating / cooling.
With the stirring blades rotatably arranged in the container,
An energizing unit arranged in the container so that heat can be exchanged between the stirring blade and the stirring blade.
A power feeding unit arranged outside the container and supplying an electric current to the energizing unit,
A cooling pipe, which is arranged in the container so as to exchange heat with the stirring blade and allows the refrigerant to flow inside,
A cooling unit that is arranged outside the container and circulates the refrigerant in the cooling pipe is provided.
At least a part of the energized portion is arranged so as to be heat exchangeable with the first portion of the stirring blade.
At least a portion of the cooling tube is arranged so that heat can be exchanged with a second portion different from the first portion of the stirring blade.
The heating / cooling / stirring device is a heating / cooling / stirring device configured to simultaneously drive the feeding unit and the cooling unit. It is a heating / cooling stirring device for stirring the object to be treated contained in the container while heating / cooling.
With the stirring blades rotatably arranged in the container,
An energizing unit arranged in the container so that heat can be exchanged between the stirring blade and the stirring blade.
A power feeding unit arranged outside the container and supplying an electric current to the energizing unit,
A cooling pipe, which is arranged in the container so as to exchange heat with the stirring blade and allows the refrigerant to flow inside,
A cooling unit that is arranged outside the container and circulates the refrigerant in the cooling pipe is provided.
At least a part of the energized portion is arranged so as to be heat exchangeable with the first portion of the stirring blade.
At least a portion of the cooling tube is arranged so that heat can be exchanged with a second portion different from the first portion of the stirring blade.
The first portion is a heating / cooling / stirring device located at an upper portion in the depth direction of the container as compared with the second portion . It is a heating / cooling stirring device for stirring the object to be treated contained in the container while heating / cooling.
With the stirring blades rotatably arranged in the container,
An energizing unit arranged in the container so that heat can be exchanged between the stirring blade and the stirring blade.
A power feeding unit arranged outside the container and supplying an electric current to the energizing unit,
A cooling pipe, which is arranged in the container so as to exchange heat with the stirring blade and allows the refrigerant to flow inside,
A cooling unit that is arranged outside the container and circulates the refrigerant in the cooling pipe is provided.
The energized portion has a hollow conductor and has a hollow conductor.
The cooling pipe is a heating / cooling / stirring device configured to allow the refrigerant to flow through a hollow portion of the conductor . It is a heating / cooling stirring device for stirring the object to be treated contained in the container while heating / cooling.
With the stirring blades rotatably arranged in the container,
An energizing unit arranged in the container so that heat can be exchanged between the stirring blade and the stirring blade.
A power feeding unit arranged outside the container and supplying an electric current to the energizing unit,
A cooling pipe, which is arranged in the container so as to exchange heat with the stirring blade and allows the refrigerant to flow inside,
A cooling unit that is arranged outside the container and circulates the refrigerant in the cooling pipe is provided.
At least a part of the stirring blade is formed as the first conductor, and the stirring blade is formed.
The energizing portion has a second conductor and an insulator covering the second conductor.
The feeding unit supplies a high frequency current to the energizing unit, and the feeding unit supplies a high frequency current to the energizing unit.
In the container, the energizing unit is a heating / cooling / stirring device capable of interlinking an alternating magnetic field generated by the second conductor with the first conductor . At least a part of the energized portion is joined to the surface of the stirring blade.
The heating / cooling / stirring device according to any one of claims 1 to 4 , wherein at least a part of the cooling pipe is joined to the surface of the stirring blade. At least a part of the energized portion is arranged inside the stirring blade.
The heating / cooling / stirring device according to any one of claims 1 to 4 , wherein at least a part of the cooling pipe is arranged inside the stirring blade. The heating / cooling / stirring device according to any one of claims 1 to 3 , wherein the feeding unit supplies a direct current to the energizing unit. The heating / cooling / stirring device according to any one of claims 2 to 4 , wherein the heating / cooling / stirring device is configured to selectively drive one of the feeding unit and the cooling unit. The heating / cooling / stirring device according to claim 2 or 4 , wherein the heating / cooling / stirring device is configured to simultaneously drive the feeding unit and the cooling unit.

Images