JP2019118874A - Heating and cooling agitation device - Google Patents

Abstract

To provide a heating and cooling agitation device of which a high heating and cooling efficiency and small-sizing can be realized.SOLUTION: A heating and cooling agitation device 100 agitates a processed product 20 accommodated in a container 21 while heating and cooling the product. The heating and cooling agitation device 100 comprises: an impeller 1 which is rotatably located in the container 21; a current-carrying part 10 which is so located in the container 21 as to be capable of heat exchanging between itself and the impeller 1; a power supply part 3 which is located outside the container 21, and supplies electric current to the current-carrying part 10; a cooling pipe 13 which is so located in the container 21 as to be capable of heat exchanging between itself and the impeller 1, and in which a coolant 14 is flown; and a cooling part 8 which is located outside the container 21, and circulates the coolant 14 in the cooling pipe 13.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a heating / cooling / stirring apparatus for stirring a workpiece contained in a container while heating / cooling.

  In recent years, in various fields such as a polymerization reactor that combines large amounts of monomers to generate a large polymer substance, and a sludge treatment apparatus that recovers methane gas that is an energy source from sewage sludge, stirring is performed while heating and cooling an object to be treated A heating, cooling, and stirring apparatus configured to be used is used.

  As a configuration for heating and stirring an object to be treated, conventionally, a heating means such as a resistance heater, steam, warm water and oil is disposed outside a container containing the object to be treated, and the heating means is used DESCRIPTION OF RELATED ART The structure which heats a to-be-processed object by heating a container is known (for example, refer to the utility model registration 3012756 (patent document 1)). Moreover, as a structure for stirring while cooling an object to be treated, a cooling means such as a refrigerant path is disposed outside the container, and the object to be treated is cooled by cooling the container using the cooling means. It is known (for example, Mizuki et al., “Experimental study on the heat transfer coefficient of the stirred tank wall of Newtonian fluid”, Chemical Engineering Proceedings Vol. 30, No. 8 (1966) (Non-patent Document 2)).

Utility model registration number 3012756

Shibata et al., "Temperature uniformity and heat transfer characteristics in simultaneous heating and stirring operation of starch syrup with induction heating and stirring blades", 81st Annual Meeting of the Chemical Engineering Society of Japan (2016) Hydrology et al., "Experimental study on the wall heat transfer coefficient of stirred fluid 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 disposed outside the container, when the viscosity of the object to be treated becomes high, the agitation of the object to be treated becomes difficult, so there is a problem that the temperature variation of the object to be treated becomes large. . Furthermore, since the flow of the object to be treated becomes worse near the tank wall of the stirring tank, there is a problem that the heat transfer characteristic is lowered and the heat responsiveness is lowered.

  As a result of intensive studies to solve the above-mentioned problems, the inventors of the present invention have found that temperature variation in a high viscosity object to be treated can be reduced by electromagnetic induction heating of the stirring blade (for example, Shibata et al., “Temperature uniformity and heat transfer characteristics in simultaneous heating and stirring operation of starch syrup with induction heating and stirring blades,” Chemical Society of Japan, 81st Annual Meeting (2016) (see Non-Patent Document 1).

  However, on the other hand, since it is necessary to arrange an electromagnetic induction coil in the exterior of a container in order to carry out electromagnetic induction heating of a stirring blade, there is concern that a limit will arise in size reduction of a physique of a heating cooling stirring device. Also, in order to link the alternating magnetic field generated by the electromagnetic induction coil to the stirring blades in the container sufficiently, the container needs to be formed of a non-conductive material, and the shape and size of the container, and the shape of the stirring blades, etc. Is concerned that

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

  Furthermore, in response to demands for high-speed control of the temperature of the object to be treated and power saving in the heating and cooling stirring apparatus, improvement in heating and cooling efficiency is also an important issue.

  The present invention has been made to solve such problems, and an object of the present invention is to provide a heating, cooling, and stirring apparatus capable of realizing high heating and cooling efficiency and downsizing of the apparatus.

  According to one aspect of the present invention, a heating, cooling, and stirring apparatus is an apparatus for stirring while heating and cooling an object stored in a container, the stirring blade rotatably disposed in the container, In the container, a conductive unit disposed so as to be able to exchange heat with a stirring blade, and a power supply unit disposed outside the container to supply a current to the conductive unit, and capable of exchanging heat between the stirring blade inside the container The cooling pipe includes a cooling pipe disposed to flow the refrigerant therein, and a cooling unit disposed outside the container and circulating the refrigerant in the cooling pipe.

  According to the present invention, since the current-carrying portion and the cooling pipe are disposed in the container so as to be able to exchange heat with the stirring blade, the stirring blade can unify the stirring and heating / cooling of the object by the stirring blade. . Thereby, the object to be treated can be heated and cooled at high speed regardless of the viscosity of the object to be treated, and high heating and cooling efficiency can be realized. Therefore, it can contribute to speeding-up of the temperature control of the object to be processed and power saving of the heating, cooling, and stirring apparatus. Moreover, since the heating means and cooling means of the container exterior become unnecessary, size reduction of a heating cooling stirring apparatus is realizable.

It is the figure which showed roughly the structure of the heating cooling stirring apparatus which concerns on Embodiment 1 of this invention. It is sectional drawing in the II-II line of FIG. FIG. 2 is a diagram for explaining an electrical circuit configuration of the heating, cooling, and stirring apparatus according to the first embodiment. It is a figure for demonstrating the heat transfer characteristic and heat responsiveness in an external heating and cooling system and an internal heating and cooling system. FIG. 2 is a view schematically showing a heat transfer path in the heating, cooling, and stirring apparatus according to the first embodiment. FIG. 6 is a diagram for describing an example of temperature control of an object to be processed by the heating, cooling, and stirring apparatus according to the first embodiment. It is the figure which showed roughly the structure of the heating cooling stirring apparatus which concerns on Embodiment 2 of this invention. It is the figure which showed roughly the structure of the heating cooling stirring apparatus which concerns on Embodiment 3 of this invention. It is sectional drawing in the IX-IX line of FIG. It is the figure which showed roughly the structure of the heating cooling stirring apparatus which concerns on Embodiment 4 of this invention. It is sectional drawing in the XI-XI line of FIG. FIG. 14 is a view schematically showing another configuration of the heating, cooling, and stirring apparatus according to the fourth embodiment. It is sectional drawing along line XIII-XIII of FIG. FIG. 18 is a view for explaining an example of the configuration of a stirring blade and a current-carrying part applied to the heating, cooling, and stirring apparatus according to the fourth embodiment. FIG. 18 is a view for explaining an example of the configuration of a stirring blade and a current-carrying part applied to the heating, cooling, and stirring apparatus according to the fourth embodiment. FIG. 18 is a view for explaining an example of the configuration of a stirring blade and a current-carrying part applied to the heating, cooling, and stirring apparatus according to the fourth embodiment. FIG. 18 is a view for explaining an example of the configuration of a stirring blade and a current-carrying part applied to the heating, cooling, and stirring apparatus according to the fourth embodiment. It is the figure which showed roughly the structure of the heating cooling stirring 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 portions in the drawings have the same reference characters allotted, and description thereof will not be repeated.

First Embodiment
The heating, cooling, and stirring apparatus 100 according to Embodiment 1 of the present invention is an apparatus for stirring the object to be processed 20 contained in the inside of the container 21 while heating and cooling. The heating, cooling, and stirring apparatus 100 can be applied to, for example, a polymerization reactor in which raw material monomers are combined to form a large polymer substance.

  FIG. 1 is a view schematically showing the configuration of a heating, cooling, and stirring apparatus 100 according to Embodiment 1 of the present invention. FIG. 1 shows a cross-sectional structure along the axial direction AX of the heating, cooling, and stirring apparatus 100. As shown in FIG.

  Referring to FIG. 1, heating / cooling / stirring apparatus 100 according to the first embodiment includes stirring blade 1, rotating shaft 2, power feeding unit 3, conductive wires 7 a and 7 b, cooling unit 8, and refrigerant passage 9 a. , 9b, a conducting unit 10, a cooling pipe 13, a container 21, and a lid 22.

  The state in which the to-be-processed object 20 is accommodated in the inside of the container 21 is shown by FIG. A lid 22 is attached to the container 21. The container 21 and the lid 22 are formed of, for example, a resin. The container 21 and the lid 22 may be made of either a conductor or a nonconductor.

  The workpiece 20 is, for example, a raw material monomer. However, the to-be-processed object 20 is not limited to a raw material monomer, It is applicable also to any of gas, a liquid, solid (powder, a granule, etc.), and these mixtures.

  The stirring blade 1 is disposed inside the container 21, and at least a portion thereof is immersed in the object to be treated 20. The stirring blade 1 is, for example, a max blend blade. In addition, the stirring blade of a suitable shape can be used for the stirring blade 1 according to the viscosity of the to-be-processed object 20 so that it may mention later.

  The stirring blade 1 has a conductor (first conductor) formed at least in part. At least a portion of the stirring blade 1 is typically formed of metal. The said at least one part is formed, for example with stainless steel (SUS304). Specifically, the stirring blade 1 can have a structure in which a part thereof is formed of a conductor and the remaining part is formed of a non-conductor. Alternatively, the stirring blade 1 can have a structure formed entirely of a conductor. In the following description, it illustrates about the stirring blade 1 currently formed with the conductor entirely.

  One end of the rotation shaft 2 in the axial direction AX is connected to the main shaft of the stirring blade 1 inside the container 21. The rotating shaft 2 is formed of, for example, stainless steel (SUS 304). A sealing member (not shown) is disposed between one end of the rotary shaft 2 and the main shaft, and the gap between the one end of the rotary shaft 2 and the main shaft can be sealed. For example, an insulating O-ring can be used as the sealing member.

  The rotating shaft 2 is inserted into a through hole 22 a formed in the lid 22. A sealing member 23 is disposed between the rotary shaft 2 and the through hole 22a. The sealing member 23 is configured to be able to seal the gap between the rotary shaft 2 and the through hole 22a. Sealing member 23 is, for example, a sealing tape. In this case, the sealing member 23 seals the gap between the rotary shaft 2 and the through hole 22a by inserting the rotary shaft 2 into the through hole 22a while sealing tape is wound around the outer peripheral surface of the rotary shaft 2. Can.

  At the outside of the container 21, the other end in the axial direction AX of the rotary shaft 2 is connected to the rotary shaft of a motor (not shown). The stirring blade 1 is rotated by rotationally driving the rotating shaft 2 by the motor. Thereby, the to-be-processed object 20 is stirred.

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

  Specifically, power supply unit 3 includes slip ring 4, AC power supply 5, high frequency transformer 6, and conductive lines 7 a and 7 b. AC power supply 5 is, for example, a commercial power supply. The high frequency transformer 6 receives supply of power from the AC power supply 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 carbon brush is brought into surface contact with the conductive wires 7a and 7b, which are rotating members, to thereby form the conductive wire 7a. , 7b are configured to supply a high frequency current. The conductive wires 7 a and 7 b extend to the inside of the container 21 through the space formed inside the rotary shaft 2.

  The energizing unit 10 is disposed inside the container 21. Inside the container 21, the conductive wire 7 a is electrically connected to one end of the conducting unit 10. The conductive wire 7 b is electrically connected to the other end of the conducting unit 10. As a result, a path through which the high frequency current is supplied from the power supply unit 3 to the conduction unit 10 is formed.

  The energizing unit 10 is disposed so as to be able to exchange heat with the stirring blade 1. In the first embodiment, the conducting unit 10 is disposed in the vicinity of the surface of the wing portion of the stirring blade 1. In the example of FIG. 1, the conducting unit 10 is joined to the blade portion of the stirring blade 1. In addition, as long as heat exchange can be performed between the stirring blade 1 and the conducting unit 10, a gap may be provided between the surface of the stirring blade 1 and the conducting unit 10.

  However, in the heating, cooling, and stirring apparatus 100 according to the present embodiment, the distance between the surface of the stirring blade 1 and the cooling pipe 13 is adopted because the power supply unit 3 adopts a configuration for supplying high frequency current to the conduction unit 10 Is preferably equal to or less than a threshold.

  The “threshold” is a distance at which an electrical connection can be formed between the current-carrying unit 10 and the stirring blade 1. The "interval capable of forming an electrical connection" refers to an interval capable of causing the phenomenon of electromagnetic induction. In other words, the current-carrying portion 10 is disposed so as to form an electrical connection with the stirring blade 1. In the present embodiment, an electrical coupling is formed between the current-carrying portion 10 and the stirring blade 1 by supplying a high frequency current to the current-carrying portion 10. Therefore, as described later, the electromagnetic induction action is performed between the two. It becomes possible to use.

  The cooling unit 8 is disposed 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 a 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 path 9a, And 9b.

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

  The refrigerant paths 9 a and 9 b extend through the space formed inside the rotary shaft 2 to the inside of the container 21. The cooling pipe 13 is disposed inside the container 21. Inside the container 21, the refrigerant passage 9 a is connected to one end of the cooling pipe 13, and the refrigerant passage 9 b is connected to the other end of the cooling pipe 13. Thus, a path in which the refrigerant 14 circulates between the cooling unit 8 and the cooling pipe 13 is formed.

  The cooling pipe 13 is disposed so as to exchange heat with the stirring blade 1. In the first embodiment, the cooling pipe 13 is disposed close to the surface of the wing portion of the stirring blade 1. In the example of FIG. 1, the cooling pipe 13 is joined to the wing portion of the stirring blade 1. In addition, as long as heat exchange can be performed 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, detailed configurations of the current-carrying unit 10 and the cooling pipe 13 shown in FIG. 1 will be described.
FIG. 2 is a cross-sectional view taken along line II-II of FIG. Referring to FIG. 2, a conductive portion 10 and a cooling pipe 13 are joined to the surface of the flat plate portion of the stirring blade 1.

The conducting unit 10 includes a conductor 11 (second conductor) and an insulator 12 covering the outer periphery of the conductor 11. The conductor 11 is typically formed of metal. The conductor 11 is formed of, for example, an aluminum (Al) plate having a thickness of about several millimeters. Insulator 12 is formed 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 current-carrying portion 10 is joined to the stirring blade 1 using, for example, an adhesive. Thus, the conductor 11 is joined to the stirring blade 1 via the insulator 12. That is, the conduction part 10 is joined to the stirring blade 1 while maintaining the electrical insulation.

  The cooling pipe 13 has a hollow shape and can allow the refrigerant 14 to flow therethrough. The cooling pipe 13 is made of a non-conductive material, and is formed of, for example, an insulating resin. The cooling pipe 13 is joined to the stirring blade 1 using, for example, an adhesive. Thereby, since heat exchange can be performed between the stirring blade 1 and the refrigerant 14, the stirring blade 1 can be cooled.

  Note that, as another embodiment in which the current-carrying portion 10 and the cooling pipe 13 are joined to the stirring blade 1, the current-carrying portion 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 superimposed on the stirring blade 1 without using a fixing member such as an adhesive or a screw.

  In addition, in FIG. 2, although the electricity_supply part 10 and the cooling pipe 13 are arrange | positioned adjacent to the same surface of the stirring blade 1, it is not limited to this arrangement | positioning. For example, the current-carrying part 10 may be disposed in the vicinity of the first surface of the stirring blade 1 and the cooling pipe 13 may be disposed in the vicinity of the second surface different from the first surface.

  Next, with reference to FIG. 3, an electrical circuit configuration of the heating, cooling, and stirring apparatus 100 according to the present embodiment will be described.

  Referring to FIG. 3, high frequency transformer 6 receives power from AC power supply 5 to generate high frequency AC power. Slip ring 4 receives supply of high frequency AC power from high frequency transformer 6, and transmits power to conductive lines 7a and 7b. Thereby, a high frequency current is supplied to the conduction unit 10 through the conductive wires 7a and 7b. A direct current (DC) cutting capacitor C1 is connected to a current path for supplying a high frequency current to the current applying unit 10.

  When a high frequency current is supplied to the conduction unit 10, an alternating magnetic field that changes temporally is generated. When this alternating magnetic field is linked to the conductor of the stirring blade 1, an electromagnetic induction action is generated inside the conductor to induce electromotive force. The electromotive force generates a vortex-like induced current (eddy current) in the conductor. Eddy current is 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 20 to heat the object 20.

  As described above, in the heating, cooling, and stirring apparatus 100 according to the first embodiment, the workpiece 20 can be heated by receiving heat from the stirring blade 1 by electromagnetic induction heating the stirring blade 1. That is, the heating, cooling, and stirring apparatus 100 has a heat source for heating the object 20 inside the container 21. In this specification, such a heating system is called an "internal heating system." On the other hand, the heating method which has a heat source for heating the to-be-processed object 20 outside the container 21 is called an "external heating method."

  In the internal heating method, since the stirring and heating of the object 20 can be unified by the stirring blade 1, compared with the external heating method in which the stirring and heating of the object 20 are separately performed inside and outside the container 21. Thus, good heat transfer characteristics can be obtained. Thereby, equalization | homogenization of the temperature of the to-be-processed object 20 can be promoted. Furthermore, since the rise time of the temperature of the processing object 20 at the time of heating can be shortened, high-speed temperature control becomes possible.

  In particular, in the heating, cooling, and stirring apparatus 100 according to the first embodiment, the high-frequency current conducting unit 10 is disposed in the container 21 so as to be able to form an electrical connection with the stirring blade 1. In the specification of the present application, the internal heating method in which the current-carrying portion is disposed in the container is also referred to as "internal current-carrying internal heating method". On the other hand, the internal heating method in which the current-carrying part is disposed outside the container is also referred to as "externally conductive internal heating method".

  In the internal conduction type internal heating method, since the current-carrying portion 10 can be disposed in the vicinity of the stirring blade 1, the alternating magnetic field generated by the current-carrying portion can be sufficiently linked to the stirring blade 1. Therefore, restriction | limiting does not arise in the arrangement position and shape of the stirring blade 1, and the freedom degree of design can be made high.

  Moreover, since the conduction part 10 can be formed with conductors, such as an aluminum plate, according to the shape of the stirring blade 1, an appropriate shape can be taken. For example, if the conducting part 10 is a thin film conductor, the stirring blade 1 will not be large by arranging the conducting part 10.

  Furthermore, as will be described later, the internal conduction type internal heating system can realize higher heating efficiency than the external conduction type internal heating system.

  In the heating, cooling, and stirring apparatus 100 according to the first embodiment, a cooling pipe 13 for allowing the refrigerant 14 for cooling the workpiece 20 to flow is further provided inside the container 21. In the specification of the present application, a cooling method in which the container 21 has cooling means for cooling the object 20 in this manner is referred to as an “internal cooling method”. On the other hand, the cooling method which has a cooling means outside the container 21 is also called an "external cooling method."

  As described above, the heating, cooling, and stirring apparatus 100 according to the first embodiment employs the internal heating method and the internal cooling method (hereinafter collectively referred to as “internal heating / cooling method”). Hereinafter, the heat transfer characteristics and thermal response characteristics in the internal heating and cooling system are compared with the heat transfer characteristics and thermal response characteristics in the external heating system and the external cooling system (hereinafter collectively referred to as “external heating and cooling system”) While thinking.

  In the internal heating / cooling system, as shown in FIG. 1, the object to be treated is heated and cooled by heating and cooling the stirring blade. On the other hand, with the external heating / cooling system, heating means and cooling means such as resistance heaters, heating means such as steam, warm water and oil, and cooling means such as a refrigerant path are disposed outside the container (stirring tank) Heat and cool the object to be treated.

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

And the stirring Reynolds number Re is a parameter representing the stirring flow of the container inside of the treatment object status is defined by Re = d 2 N ^/ ν. d is the width of the stirring blade, N is the number of revolutions of the stirring blade (1 / s), and ν is the kinematic viscosity (m ² / s). The Nusselt number Nu is a parameter that represents the ease of heat transfer to the object, and is defined by Nu = hd / k. h is the heat transfer coefficient (W / m ² K) and k is the thermal conductivity (W / m K).

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

  Although the heat transfer correlation equation described in Non-Patent Document 2 represents the heat transfer characteristic at the time of cooling, and the measurement data of the present inventors represent the heat transfer characteristic at the time of heating, the characteristic diagram of FIG. Basically, it represents the heat transfer characteristics of both heating and cooling.

  Referring to FIG. 4, it can be seen that the internal heating / cooling system has a higher Nusselt number Nu and better heat transfer performance than the external heating / cooling system. This is the same size as the rotational speed between the object and the agitating blade in the rotational direction of the agitating blade because the agitating blade rotates with respect to the object in the configuration in which the agitating blade is heated and cooled In the configuration where heating and cooling of the stirring vessel wall is performed, the relative velocity of the stirring vessel is always generated, and even when the stirring blade is rotating, the object to be treated is thickened in the vicinity of the stirring vessel wall. This is because the flow velocity of the treatment is attenuated and becomes slower than the rotational speed of the stirring blade.

  Furthermore, in order to quickly control to a predetermined temperature, (i) a time constant for heating and cooling is small, or (ii) a large amount of heat is required for heating and cooling.

  The heat transfer characteristics affect the time constant of (i) above. For example, consider heat responsiveness when heating and cooling are switched stepwise to heat and cool the stirring blade or the stirring tank. Generally, the thermal responsiveness is evaluated by a 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 ), h A is the thermal conductance (W / K), m is the mass of the stirring blade or the stirring tank (kg) , Cp is the specific heat (J / kg K) of the stirring blade or the stirring tank, and mCp is the heat capacity (J / K). That is, when the thermal conductance hA is large and the thermal capacity mCp is small, the time constant τ is small, and as a result, the thermal responsiveness is good.

  According to FIG. 4, the heat transfer characteristic of the internal heating / cooling system is superior to that of the external heating / cooling system by 1.3 to 2.2 times, and the heat capacity of the agitating blade in the actual machine is , Or less than about 1⁄4 of the heat capacity of the stirred tank. As a result, the time constant of the internal heating / cooling system is about 1⁄5 or less of the time constant of the external heating / cooling system, and its thermal responsiveness is significantly improved. These effects are expected to be more pronounced as the viscosity of the material to be treated is increased.

  In particular, in the heating, cooling, and stirring apparatus 100 according to the first embodiment, that is, in the internal cooling system, the cooling pipe 13 is disposed so as to be able to exchange heat with the stirring blade 1. Therefore, the stirring and cooling of the object to be treated 20 can be unified by the stirring blade 1, and the improvement of the cooling efficiency and the downsizing of the apparatus can be realized.

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

  Referring to FIG. 5, the power feeding unit 3, the current-carrying unit 10, and the stirring blade 1 are electrically connected. As a result, the stirring blade 1 is electromagnetically heated by the alternating magnetic field generated by the energization unit 10 upon receiving the supply of the high frequency current from the feeding unit 3. And the to-be-processed object 20 is heated by the thermal connection between the stirring blade 1 and the to-be-processed object 20. As shown in FIG.

  Furthermore, the current-carrying unit 10 is thermally connected to the stirring blade 1 and thermally connected to the workpiece 20. When a high frequency current is supplied to the conducting unit 10, Joule heat is generated by the electrical resistance of the conducting unit 10. The Joule heat generated by the energizing unit 10 is transmitted to the stirring blade 1 and the object 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 energization unit 10 can be used to heat the workpiece 20. Therefore, if the amount of heat input is the same, the internal conduction type can use a larger amount of heat for heating the object 20 than the external conduction type. Therefore, the heating rate of the object 20 can be increased. Conversely, in order to obtain the same heating rate, the internal conduction type can reduce the amount of heat input compared to the external conduction type. Therefore, the heating efficiency can be increased, and the power consumption can be reduced.

  Further, as described above, the internal conduction type is more efficient than the external conduction type, can input a large amount of heat, and can increase the heating rate of the object 20, so the temperature control of the object 20 is highly responsive. Can be realized.

  The cooling pipe 13 is thermally connected to the cooling unit 8 and also thermally connected to the workpiece 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 treated 20, and the object to be treated 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 system, since the object to be treated 20 and the stirring blade 1 can be cooled using the refrigerant 14, the cooling rate of the object to be treated 20 can be increased as compared with the external cooling system. Therefore, high responsiveness can be realized in temperature control of the processing object 20.

  As described above, the heating, cooling, and stirring apparatus 100 according to the first embodiment is configured to be able to execute heating of the object by the internal conduction type internal heating method and cooling of the object by the internal cooling method. There is. With such a configuration, it is possible to selectively switch between heating and cooling in accordance with the necessity in a reaction operation requiring heating and cooling of an object to be treated. Further, since the power 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 set arbitrarily.

  Furthermore, as described above, the internal conduction type internal heating system realizes high heating rate because of high efficiency and high heat transfer. In addition, the internal cooling system achieves a high cooling rate due to high heat transfer. Therefore, high responsiveness can be exhibited in temperature control of the processing object by heating and cooling.

  In FIG. 6, an example of temperature control of the to-be-processed object 20 by the heating cooling stirring apparatus 100 which concerns on Embodiment 1 is shown. 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 heating an object to be processed, the power supply unit 3 is driven in a state where the cooling unit 8 is stopped, and a high frequency current is supplied to the conduction unit 10. Then, when the temperature of the object to be processed reaches the heating target temperature, the operation of the power supply unit 3 is stopped. Further, when the object to be processed is cooled, the cooling unit 8 is driven in a state in which the power supply unit 3 is stopped, and the refrigerant 14 is circulated in the cooling pipe 13. Then, when the temperature of the processing object 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 when the object is heated and cooled using the heating and cooling device adopting the external heating method and the external cooling method. Is shown. FIG. 6 (B) shows a temporal change of the temperature of the processing object when the heating and cooling processing of the processing object is performed using the heating, cooling, and stirring apparatus 100 according to the first embodiment.

  Comparing FIGS. 6A and 6B, 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 is possible to control the temperature of the object to be processed with high accuracy.

  In addition, since heating and cooling can be controlled to a desired target temperature at high speed, heating and cooling can be switched at high speed. Moreover, the processing time of each of heating and cooling is shortened, so that the operating time of the heating and cooling stirring device 100 required for one heating and cooling process is also shortened. Thereby, the power consumption of the heating-cooling stirring apparatus 100 in one heating-cooling process can be reduced, and as a result, the running cost of the heating-cooling stirring apparatus 100 can be reduced.

Second Embodiment
In the heating, cooling, and stirring apparatus 100 according to the first embodiment, heating and cooling of the object to be processed can be performed in parallel by simultaneously driving the power supply unit 3 and the cooling unit 8. Using this, any temperature distribution can be actively formed inside the container 21.

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

  FIG. 7 is a view schematically showing the configuration of a heating, cooling, and stirring apparatus 100 according to Embodiment 2 of the present invention. FIG. 7 shows a cross-sectional structure along the axial direction AX of the heating, cooling, and stirring apparatus 100 according to the second embodiment. The heating, cooling, and stirring apparatus 100 according to the second embodiment differs from the heating, cooling, and stirring apparatus 100 shown in FIG. 1 in the arrangement of the current-carrying unit 10 and the cooling pipe 13.

  Referring to FIG. 7, the current-carrying portion 10 is disposed close to the surface of the first portion 110 of the stirring blade 1. In the example of FIG. 7, the conducting unit 10 is joined to the surface of the first portion 110 of the stirring blade 1. As described in the first embodiment, a gap having a size equal to or smaller than the threshold may be provided between the surface of the stirring blade 1 and the current-carrying unit 10.

  The cooling pipe 13 is disposed 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 smaller than the threshold 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 (vertical direction in the drawing) of the container 21. That is, the energizing unit 10 is disposed at the upper portion in the depth direction of the container 21, and the cooling pipe 13 is disposed at the lower portion in the depth direction of the container 21.

  When a high frequency current is supplied from the feeding unit 3 to the conducting 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. Thereby, the workpiece 20 located at the upper part in the depth direction of the container 21 is heated, while the workpiece 20 located at the lower part in the depth direction is cooled. As a result, in the entire workpiece 20, a temperature distribution is formed such that the temperature at the upper side in the depth direction of the container 21 is higher than the temperature at the lower side in the depth direction.

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

  In the temperature distribution shown in FIG. 7, the temperature on the high temperature side can be adjusted by changing the magnitude or the conduction time of the current supplied from the power supply unit 3 to the conduction unit 10. Further, the temperature on the low temperature side can be adjusted by changing the temperature, the flow rate, or the flow time of the refrigerant 14 flowing in the cooling pipe 13 by the cooling unit 8. That is, since the maximum temperature and the minimum temperature can be arbitrarily set by controlling the power supply unit 3 and the cooling unit 8 independently of each other, any temperature gradient and temperature distribution can be freely changed.

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

  The driving force for crystallization (referred to as crystallization) is, in principle, the concentration difference between the concentration of the substance to be treated and the solubility, and there are multiple methods such as cooling or evaporation to give this concentration difference. Typically, there are a case where the solubility is lowered by cooling to precipitate crystals, and a case where the concentration of an object to be treated is raised by heating evaporation to precipitate crystals. When a supersaturation state is created by these operations, crystallization is initiated. As shown in FIG. 7, when a temperature distribution is formed such that the upper portion in the depth direction of the container 21 is a high temperature portion and the lower portion in the depth direction is a low temperature portion, crystals having a large grain size among the crystals generated in the low temperature portion Sinks to the bottom of the container 21. On the other hand, crystals with a small particle size are conveyed to the top of the vessel 21 by stirring and dissolved in the high temperature part. By repeating this cycle, crystals having a large particle diameter will be accumulated at the bottom of the container 21 uniformly. Therefore, crystals having a uniform particle size can be obtained.

Third Embodiment
In the third embodiment, modifications of the current-carrying unit 10 and the cooling pipe 13 in the heating, cooling, and stirring apparatus 100 according to the first embodiment will be described. The heating, cooling, and stirring apparatus 100 according to the third embodiment has the same configuration as the heating, cooling, and stirring apparatus 100 according to the first embodiment except for the current-carrying unit 10 and the cooling pipe 13.

  FIG. 8 is a view schematically showing the configuration of a heating, cooling, and stirring apparatus 100 according to Embodiment 3 of the present invention. FIG. 8 shows a cross-sectional structure along the axial direction AX of the heating, cooling, and stirring apparatus 100 according to the third embodiment. FIG. 9 is a cross-sectional view taken along line IX-IX of FIG.

  With reference to FIGS. 8 and 9, in the heating, cooling, and stirring apparatus 100 according to the third embodiment, at least a part of the current-carrying unit 10 is disposed inside the stirring blade 1. The conductive portion 10 includes a conductor 11 and an insulator 12 covering the outer periphery of the conductor 11. Therefore, the conducting unit 10 is electrically insulated from the stirring blade 1.

  At least a portion of the cooling pipe 13 is disposed inside the stirring blade 1. Specifically, an opening extending in a direction parallel to the surface of the flat plate portion of the stirring blade 1 is formed. 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. Thus, the opening can function as a cooling pipe 13 through which the refrigerant 14 flows. Since the heat exchange can be performed between the stirring blade 1 and the refrigerant 14 by circulating the refrigerant 14 in the cooling pipe 13, the stirring blade 1 can be cooled.

  In the examples of FIGS. 8 and 9, the cooling pipe 13 extends along the outer periphery of the side and bottom of the flat plate portion of the stirring blade 1. The current-carrying portion 10 is spirally disposed on the flat plate portion of the stirring blade 1, and a portion thereof is located inside the cooling pipe 13. In the conductive portion 10, as the conductor 11, for example, a conductive coil made of a thin conductive wire such as a litz wire can be used.

  According to the heating, cooling, and stirring apparatus 100 according to the third embodiment, as in the heating, cooling, and stirring apparatus 100 according to the first embodiment, the heating of the object by the internal conduction type internal heating system and the processing by the internal cooling system The cooling of the object can be selectively switched and executed.

  Specifically, at the time of heating the workpiece 20, the power supply unit 3 is driven in a state in which the cooling unit 8 is stopped, and a high frequency current is supplied to the conduction unit 10. On the other hand, when the workpiece 20 is cooled, the cooling unit 8 is driven in a state in which the power supply unit 3 is stopped, and the refrigerant 14 is circulated in the cooling pipe 13. In addition, since the power 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 set arbitrarily.

  Alternatively, heating and cooling of the object 20 can be performed in parallel by simultaneously driving the power supply unit 3 and the cooling unit 8. By utilizing this, the temperature distribution of the stirring blade 1 and, as a result, the object 20 can be actively formed inside the container 21.

  In the example of FIG. 8, when the refrigerant 14 is circulated through the cooling pipe 13 in a state in which the high frequency current is supplied to the conductive part 10, the outer peripheral portion of the stirring blade 1 is cooled while the central portion of the stirring blade 1 is It is 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 changing the magnitude of the current supplied from the power supply unit 3 to the current supply unit 10 or the current supply time. Further, the temperature of the low temperature portion can be adjusted by adjusting the temperature, the flow rate, or the flow time of the refrigerant 14 flowing in the cooling pipe 13 by the cooling unit 8. That is, the temperature gradient can be freely changed by controlling the power feeding unit 3 and the cooling unit 8 independently of each other. Thus, since any temperature distribution can be formed inside the container 21 by heating and cooling the stirring blade 1 itself, an active heating and cooling means can be realized.

Fourth Embodiment
In the first to third embodiments, the configuration in which the current-carrying portion 10 and the cooling pipe 13 are formed as separate members has been described, but the current-carrying portion 10 and the cooling pipe 13 may be integrally formed.

  In the fourth embodiment, a heating, cooling, and stirring apparatus in which a current-carrying portion and a cooling pipe are integrated will be described.

  FIG. 10 is a view schematically showing the configuration of a heating, cooling, and stirring apparatus 100 according to Embodiment 4 of the present invention. FIG. 10 shows a cross-sectional structure along the axial direction AX of the heating, cooling, and stirring device 100 according to the fourth embodiment.

  Referring to FIG. 10, heating / cooling / stirring apparatus 100 according to the fourth embodiment is compared with heating / cooling / stirring apparatus 100 shown in FIG. It differs in that it has an electrification part 15 and hollow conductive tubes 19a and 19b instead of the refrigerant paths 9a and 9b.

  One ends of the conductive tubes 19 a and 19 b are connected to a 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 19 a and 19 b extend to the inside of the container 21 through the space formed inside the rotary 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 as rotating members. .

  The energizing unit 15 is disposed inside the container 21. Inside the container 21, the other end of the conductive tube 19 a is electrically connected to one end of the conductive portion 15. The other end of the conductive tube 19 b is electrically connected to the other end of the conductive portion 15. It is connected to the. As a result, a path through which the high frequency current is supplied from the feeding unit 3 to the conducting unit 15 is formed.

  11 is a cross-sectional view taken along line XI-XI of FIG. Referring to FIG. 11, the conductive unit 15 includes a conductor 16 (second conductor) and an insulator 17 covering the outer periphery of the conductor 16.

  The conductor 16 has a tubular shape in which a hollow portion is provided. Conductor 16 is typically formed 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. Thus, a path in which the refrigerant 14 circulates between the cooling unit 8 and the conduction unit 15 is formed.

  The energizing unit 15 is disposed so as to be able to exchange heat with the stirring blade 1. In the fourth embodiment, the current-carrying portion 15 is disposed in the vicinity of the surface of the flat plate portion of the stirring blade 1. In the example of FIG. 11, the conducting unit 15 is joined to the stirring blade 1 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 between the surface of the stirring blade 1 and the current-carrying portion 15. Thereby, since heat exchange can be performed between the stirring blade 1 and the refrigerant 14, the stirring blade 1 can be cooled.

  As described above, in the heating, cooling, and stirring apparatus 100 according to the fourth embodiment, the energizing unit 15 is configured to allow the refrigerant 14 to flow therethrough. Therefore, the conduction unit 15 can also function as a cooling pipe. In other words, the cooling pipe is formed of a conductor, and is configured to be supplied with a high frequency current from the power feeding unit 3. That is, the cooling pipe can also function as a conducting unit.

  In the heating, cooling, and stirring apparatus 100 according to the fourth embodiment, as in the heating, cooling, and stirring apparatus 100 according to the first to third embodiments, the heating of the object by the internal conduction type internal heating system and the internal cooling system And cooling of the object to be processed. Therefore, since a high heating rate and a high cooling rate are realized, high responsiveness can be exhibited in temperature control of an object by heating and cooling.

  In particular, in the heating, cooling, and stirring apparatus 100 according to the fourth embodiment, heating and cooling of the object to be processed 20 are performed via the energizing unit 15 by selectively switching between the feeding unit 3 and the cooling unit 8 and driving. And can be selectively switched and executed. At this time, since the power supply 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 set arbitrarily.

  Specifically, at the time of heating the workpiece 20, the power supply unit 3 is driven in a state where the cooling unit 8 is stopped, and a high frequency current is supplied to the conduction unit 15. Further, when the object to be processed 20 is cooled, the cooling unit 8 is driven in a state in which the power supply unit 3 is stopped, and the refrigerant 14 is circulated in the conduction unit 15.

  In the heating and cooling operation described above, since the temperature of the object to be treated 20 can be controlled at high speed, heating and cooling can be switched at high speed. Moreover, since each processing time of heating and cooling is shortened, the operating time of the heating-cooling stirring apparatus 100 required for one heating-cooling process is also shortened. Thereby, power saving of the heating, cooling, and stirring apparatus 100 can be achieved.

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

  Referring to FIG. 13, the stirring blade 1 has a first wing portion 1A and a second wing portion 1B. The first wing portion 1A and the second wing portion 1B are arranged to be opposed along the axial direction AX. In the example of FIG. 13, the first wing portion 1A and the second wing portion 1B are formed by dividing the flat plate portion of the stirring wing 1 into two along the axial direction AX.

  The energizing unit 15 is disposed between the first wing portion 1A and the second wing portion 1B. Specifically, the conductive portion 15 is disposed in proximity to at least one of the first wing portion 1A and the second wing portion 1B.

  In addition, as FIG. 13 shows, the electricity supply part 15 may be a single-turn coil whose number of turns of a coil is 1, and may be a multi-turn coil whose number of turns of a coil is two or more.

  According to the example of FIG. 13, since the conductive portion 15 is joined to the surface of the first wing portion 1A and the surface of the second wing portion 1B, the Joule heat generated in the conductive portion 15 during heating is It can be equally transmitted to the first wing portion 1A and the second wing portion 1B. Further, at the time of cooling, the refrigerant 14 flowing through the inside of the conductive portion 15 can absorb heat equally from the first wing portion 1A and the second wing portion 1B. Thereby, the heat transfer coefficient between the stirring blade 1 and the object to be treated 20 can be improved, so the heating and cooling efficiency can be improved.

Fifth Embodiment
In the fifth embodiment, a configuration example of a stirring blade that can be applied to the heating, cooling, and stirring apparatus 100 according to the above-described third embodiment and an electric conduction unit 15 will be described with reference to FIGS. 14 to 17. The heating / cooling / stirring apparatus 100 adopts the internally-powered internal heating method and the internally-cooling method, so there is no restriction on the position and shape of the stirring blade. Therefore, an appropriately shaped stirring blade can be used depending on the viscosity of the material to be treated and the rotational speed of the stirring blade.

  First, with reference to FIG. 14 and FIG. 15, the example of a structure of the stirring blade which consists of a disk turbine blade, and the electricity_supply part 15 is demonstrated. The disk turbine blade is a stirring blade mainly used for stirring a low viscosity material to be treated.

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

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

  Referring to FIG. 14 (B), the conductive portion 15 is disposed in a groove portion 1 a formed on the outer peripheral surface of the stirring blade 1. The conductive portion 15 can be disposed inside the stirring blade 1 by impregnating the groove portion 1 a with a thermosetting resin after winding the conductive portion 15.

  When the current-carrying portion 15 is wound around the outer peripheral surface of the stirring blade 1, a protrusion is generated on the surface of the stirring blade 1, so the original shape of the stirring blade may be lost. In such a case, the power number of the stirring blade may deviate from the design value, and the agitation power may also deviate from the design value. As shown in FIG. 14 (B), by making the conductive portion 15 embedded in the stirring blade 1, the conductive portion 15 is disposed in the vicinity of the stirring blade 1 without damaging 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. FIG. 15 (B) is a cross-sectional view along the line XV-XV in FIG. 15 (B).

  Referring to FIG. 15 (A), the current-carrying portion 15 is disposed inside the flat portion of the stirring blade 1. Specifically, as shown in FIG. 15 (B), the current-carrying portion 15 is disposed in the groove portion 1 a formed in the flat portion of the surface of the stirring blade 1. After the conductive portion 15 is disposed, by impregnating the groove portion 1 a with a thermosetting resin, the conductive portion 15 can be disposed inside the stirring blade 1, and the surface of the stirring blade 1 can be made smooth. Thereby, the original shape of the stirring blade 1 can be maintained.

  Next, with reference to FIG. 16 and FIG. 17, the example of a structure of the stirring blade which consists of a helical wing | blade, and an electricity_supply part is demonstrated. The helical blade is a stirring blade mainly used for stirring a high viscosity material to be treated.

  FIG. 16 is a view of the stirring blade 1 as seen from the direction perpendicular to the rotating shaft 2. Referring to FIG. 16, the stirring blade 1 has a belt-like blade arranged in a spiral shape. The conducting unit 15 is wound around the outer peripheral surface of the belt-like blade. In energization unit 15, conductor 16 is, for example, a conductive coil. The energizing unit 15 is disposed in a groove (not shown) formed on the outer peripheral surface of the stirring blade 1. Note that, after winding the current-carrying portion 15, the groove portion may be impregnated with a thermosetting resin to dispose the current-carrying portion 15 in the vicinity of the stirring blade 1 and to make the outer peripheral surface of the stirring blade 1 smooth. Can.

  The container 21 has a conductor (third conductor) formed at least in part. It is preferable that the conductor of the container 21 be formed at a position close to the conducting part 15. The position close to the conducting unit 15 means a position where the alternating magnetic field generated by the conducting unit 15 can be linked sufficiently. In the example of FIG. 16, it is preferable to dispose a conductor on the wall surface of the container 21 so as to face the conducting unit 15. Thus, the container 21 can be heated by electromagnetic induction by interlinking the alternating magnetic field generated by the conductive 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 seen from the direction perpendicular to the rotation shaft 2. FIG. 17B is a cross-sectional view taken along line XVII-XVII in the figure. Referring to FIGS. 17A and 17B, current-carrying portion 15 is disposed in a groove (not shown) formed in a spiral wing. Similar to FIG. 15, in FIG. 17 as well as FIG. 15, the original shape of the stirring blade 1 can be maintained by arranging the current-carrying part 15 in the groove formed on the surface of the blade.

  In the fifth embodiment, a configuration example of the current-carrying portion 15 in which the current-carrying portion and the cooling pipe are integrally formed has been described. However, the disk turbine blade of FIGS. 14 and 15 and the helical blade of FIGS. On the other hand, it is also possible to apply the composition where electric conduction part 10 and cooling pipe 13 were formed as another member mutually.

Sixth Embodiment
In the first to fourth embodiments described above, in the power supply unit 3 for supplying a high frequency current to the conductive unit 10 (or the conductive unit 15), the configuration has been described in which the AC power supply 5 and the conductive unit 10 are brought into contact to supply power. However, the same effect as that of the embodiment can be obtained even when the AC power supply 5 supplies power to the current-carrying unit 10 without contact.

  FIG. 18 is a view schematically showing a configuration of a heating, cooling, and stirring apparatus 100 according to Embodiment 6 of the present invention. FIG. 18 shows a cross-sectional structure along the axial direction AX of the heating, cooling, and stirring device 100 according to the sixth embodiment. The basic configuration of the heating, cooling, and stirring apparatus 100 according to the sixth embodiment is the same as the heating, cooling, and stirring apparatus 100 shown in FIG. 1 except for the power supply unit 3.

  In the sixth embodiment, power feeding unit 3 includes power transmission coil L1 and power reception coil L2 instead of slip ring 4. When receiving the high frequency AC power from the high frequency transformer 6, the power transmission coil L1 transmits the non-contact power to the power receiving coil L2 through the electromagnetic field generated around the power transmission coil L1. That is, the power transmission coil L1 and the power reception coil L2 realize non-contact power feeding which transmits power in a non-contact manner. As shown in FIG. 18, the power transmission coil L1 is disposed so as to surround the outer periphery of the rotation shaft 2. The power transmission coil L1 can remain stationary with respect to the rotation of the rotary shaft 2.

  The power receiving coil L2 receives the high frequency power output from the power transmitting coil L1 in a contactless manner. The power receiving coil L2 is disposed 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.

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

[Application example of heating and cooling stirring device]
In the embodiment described above, although the configuration in which the heating, cooling, and stirring apparatus of the present invention is applied to a polymerization reactor that generates large macromolecular substances by combining monomers is described, the heating, cooling, and stirring apparatus of the present invention is a polymerization reaction. It can be applied to various fields as well as For example, a sludge treatment apparatus for recovering methane gas, which is an energy source, from sewage sludge, a fermentation treatment apparatus for fermenting organic matter, a solvent for removing high viscosity substances, an evaporator for removing monomers and degassing, and stirring while heating and cooling foodstuffs. The heating, cooling, and stirring apparatus of the present invention can be applied to a cooker or the like.

  It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is indicated not by the above description but by the claims, and is intended to include all the modifications within the meaning and scope equivalent to the claims.

  DESCRIPTION OF SYMBOLS 1 stirring blade, 1a groove part, 1A 1st wing part, 1B 2nd wing part, 2 rotating shafts, 3 electric power feeding part, 4 slip ring, 5 alternating current power supply, 6 high frequency transformer, 7a, 7b, 19a, 19b conductive wire , 8 cooling unit, 8a supply pipe, 8b discharge pipe, 9a, 9b refrigerant passage, 10, 15 electric conduction unit, 11, 16 conductor, 12, 17 insulator, 13 cooling pipe, 14 refrigerant, 20 object to be treated, 21 22 lid, 22a through hole, 23 sealing member, 82 heat exchanger, 84 pump, 86 rotary joint, 100 heating and cooling stirring device, 110 first portion, 120 second portion, L1 power transmission coil, L2 Receiving coil.

Claims (10)

A heating / cooling / stirring apparatus for stirring while heating / cooling an object contained in a container, which is an apparatus for
A stirring blade rotatably disposed in the container;
A conducting unit disposed in the container so as to be capable of exchanging heat with the stirring blade;
A feeding unit disposed outside the container and supplying a current to the conducting unit;
A cooling pipe disposed in the container so as to be capable of exchanging heat with the stirring blade, and allowing a refrigerant to flow therethrough;
And a cooling unit disposed outside the container and configured to circulate the refrigerant in the cooling pipe. At least a portion of the current-carrying portion is arranged to be heat exchangeable with the first portion of the stirring blade,
The heating and cooling stirring device according to claim 1, wherein at least a part of the cooling pipe is arranged to be heat exchangeable with a second part different from the first part of the stirring blade.   The heating, cooling, and stirring apparatus according to claim 2, wherein the first portion is located at an upper portion in the depth direction of the container, compared to the second portion. At least a portion of the conductive portion is disposed in proximity to the surface of the stirring blade,
The heating, cooling, and stirring apparatus according to any one of claims 1 to 3, wherein at least a part of the cooling pipe is disposed close to the surface of the stirring blade. At least a portion of the conducting part is disposed inside the stirring blade,
The heating, cooling, and stirring apparatus according to any one of claims 1 to 3, wherein at least a part of the cooling pipe is disposed inside the stirring blade. The conducting part has a hollow conductor.
The heating and cooling stirring device according to claim 1, wherein the cooling pipe is configured to cause the refrigerant to flow through the hollow portion of the conductor. The stirring blade has a first conductor formed at least in part,
The conducting unit includes a second conductor and an insulator covering the second conductor,
The heating, cooling, and stirring apparatus according to any one of claims 1 to 6, wherein the power feeding unit supplies a high frequency current to the conduction unit.   The heating, cooling, and stirring device according to any one of claims 1 to 6, wherein the power feeding unit supplies a direct current to the conduction unit.   The heating, cooling, and stirring apparatus according to any one of claims 1 to 8, wherein the heating, cooling, and stirring apparatus is configured to selectively drive one of the power feeding unit and the cooling unit.   The heating, cooling, and stirring apparatus according to any one of claims 1 to 8, wherein the heating, cooling, and stirring apparatus is configured to simultaneously drive the power feeding unit and the cooling unit.