JPH01304004A - Heating/cooling container - Google Patents

Abstract

PURPOSE:To enhance the cooling capacity of a container main body, by providing a jacket chamber, which is provided around the container main body and has a heat exchanger provided therein, apart from a liquid sump part and connecting both of them by a pipe provided with the second heat exchanger. CONSTITUTION:A jacket chamber 4 is provided around a container main body 1 and a heat exchanger 6 is provided in said jacket chamber 4. A liquid sump part 12 equipped with an electromagnetic induction heater 13 and having a heating medium sealed therein under vacuum is provided apart from the jacket chamber and both of them are connected by connection pipes 17, 18 and the second heat exchanger 19 is provided to the connection pipe 17. The container main body 1 is heated at first by the heating medium 5' evaporated by the electromagnetic induction heater 13 and subsequently cooled by the condensed heating medium 5 condensed by the heat exchanger 6. Since temp. drops and the quantity of vapor is reduced when cooling is advanced by the liquid condensed by the heat exchanger 6, the condensed liquid due to the heat exchanger is supplied.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a heating and cooling container.

(Prior art) In a heating container, a jacket chamber in which a gas-liquid two-phase heat medium is sealed is installed around the main body of the container, and the heat medium is heated and evaporated by an electromagnetic induction heating mechanism, and the evaporated heat medium is heated. It is already known that the object to be processed inside the container body is heated by the latent heat generated when it condenses.

In addition, in this type of container, after raising the temperature of the object to be processed to a certain temperature, it is necessary to maintain the temperature at a constant temperature while removing heat generated from the object, such as heat of chemical reaction and heat of dissolution. Sometimes.

In addition, the workpiece heated to a certain temperature as described above,
Thereafter, it may be necessary to lower the temperature to a certain temperature.

To this end, it has been separately proposed to provide a cooling heat exchange device in the jacket chamber, to condense the vaporized heat medium, and to bring the condensed heat medium into contact with the container body to cool it.

(Problems to be Solved by the Invention) By utilizing the cooling provided by the heat exchange device described above, it becomes possible to heat and cool the object to be processed within the container body. However, in a separate proposal, since the temperature inside the jacket chamber is high and the amount of steam inside the jacket chamber is large at the beginning of cooling, a heat exchanger sufficiently condenses the heat medium and supplies it to the wall around the container body. Cooling can be performed efficiently.

However, as cooling progresses, the temperature decreases and the amount of steam decreases, resulting in a decrease in the amount of condensed liquid that should be supplied to the wall of the container body, and the evaporation of the liquid does not occur actively, resulting in a decrease in cooling capacity and a drop in the temperature at around room temperature. In the case of cooling, there is a drawback that cooling by transfer of latent heat becomes difficult.

This invention provides a container that can be heated and cooled.
In the case of cooling, as in the case of heating, the objective is to be able to perform cooling over a wide range from high temperatures to room temperature by utilizing latent heat and sensible heat.

(Means for Solving the Problems) This invention provides a heat exchange device that cools and condenses the vaporized heat medium inside the jacket chamber, and also has a liquid reservoir in a position separated from the container body. and an electromagnetic induction heating mechanism for heating the heat medium in the liquid reservoir, in which the heated and vaporized heat medium in the liquid reservoir is placed between the jacket chamber and the liquid reservoir. It is characterized in that it is provided with a connecting pipe that supplies the jacket chamber, and that this connecting pipe is provided with another heat exchange device.

(Function) The heat medium heated by the electromagnetic induction heating mechanism and vaporized is supplied into the jacket chamber through the connecting pipe. When the heat medium is condensed, the container body is heated by the exchange of latent heat of vaporization.

When cooling the container body, the heat exchanger cools the heat medium that has already been vaporized for heating the container body.

As a result of this cooling, the heat medium is condensed, becomes liquid, touches the peripheral wall of the container body, and flows down along the peripheral wall. In this process, the heat medium is heated and evaporated by the heat held in the container body. The container body is cooled by the latent heat of vaporization generated at that time.

At this time, another heat exchange device is simultaneously driven to condense the vaporized heat medium from the liquid reservoir, guide the warp condensate into the jacket chamber, and cause it to flow down along the wall surface of the container body. In this process of flowing down, the condensed liquid is evaporated by the heat of the wall surface, and the wall surface is cooled by the latent heat of evaporation at that time.

Furthermore, even if the condensate flows down, if the temperature is so low that sufficient evaporation does not occur, the condensate will be cooled by the sensible heat of the condensate.

(Example) An example of the present invention will be described with reference to the drawings. 1 is a container body, 2 is a stirrer, and 3 is an object to be treated. 4 is a jacket chamber provided so as to surround the container body 1; 5 is a gas-liquid two-phase heating medium; and 5' is a gas phase portion of the heating medium 5.

A heat exchange device 6 for cooling is provided inside the jacket chamber 4. The heat exchange device 6 consists of, for example, a finned pipe 7, which is installed around the outer periphery of the container body 1 in a spiral manner. A heat medium for cooling is supplied to the pipe 7, and 8 is an inlet/outlet thereof.

A liquid collecting device 9 is installed below and adjacent to the pipe 7. The liquid collecting device 9 has a plate 10 formed in a spiral shape, and is arranged so that the plate 10 is located below the pipe 7. At this time, the plate 10 was made to be inclined toward the outer wall of the container body 1 as shown in the figure, and the plate 11 was provided at the bottom of the container body 1. This is a valve for taking out the object to be processed.

Reference numeral 12 denotes a liquid reservoir portion for the heat medium 5, in which the heat medium 5 is sealed under reduced pressure. Reference numeral 13 denotes an electromagnetic induction heating mechanism for heating the heat medium 5, which is disposed in a space 14 within the liquid reservoir 12, and includes an iron core 15 and an induction coil 16 wound around the iron core 15.
It is mainly composed of.

The upper part of the jacket chamber 4 and the upper part of the liquid reservoir 12 are connected by a connecting pipe 17. The vaporized heat medium is supplied into the jacket chamber 4 through the connecting pipe 17. The lower part of the jacket chamber 4 and the lower part of the liquid reservoir 12 are connected by a connecting pipe 18.

The liquid heat medium condensed in the jacket chamber 4 is recovered into the liquid reservoir 12 through the connecting pipe 18 .

According to this invention, a heat exchange device 19 is installed in the middle of the connecting pipe 17 to cool and condense the gaseous heat medium 5'. Reference numeral 20 denotes an inlet/outlet for supplying a cooling heat medium to the heat exchange device 19.

In the above configuration, when the electromagnetic induction heating mechanism 15 is driven, an electric current is induced, Joule heat is generated, and the heat medium 5 in the liquid reservoir 12 is heated and evaporated. Evaporated steam is transferred to connecting pipe 1
7 and is supplied to the pipe 21 in the jacket chamber 4, and through the penetration part of this pipe 21 provided toward the outer wall surface of the container body 1, it contacts the outer wall surface of the container body 1 and condenses.

At this time, the container body 1 is heated by releasing latent heat of condensation. Note that in this case, the heat exchange device 19 is not operated at all.

This heating heats the object to be processed 3 inside. The condensed heat medium returns to the liquid reservoir 12 from the bottom of the jacket chamber 4 via the connecting pipe 18, where it is heated again. Thereafter, this process is repeated to heat the object 3 to a predetermined temperature. This heating action is not particularly different from that of ordinary heating containers of this type.

Next, heat generated from the workpiece 3, such as reaction heat and heat of dissolution, is removed to maintain a predetermined temperature, or the temperature of the workpiece 3 is lowered in order to perform the next process operation. In this case, the heat exchange device 6, ie the pipe 7, is supplied with a heat medium for cooling.

Then, the steam heat transfer medium 5' in the jacket chamber 4 condenses on the surface of the pipe 7, becomes liquid, and passes through the liquid collection device 9, that is, the plate 10.
The liquid is collected by From there, it flows down almost uniformly in the form of a film or drops along the outer wall surface of the container body 1.

While flowing down, the condensed heat medium receives heat from the object to be processed 3 which is in a high temperature state within the container body 1 via the wall surface of the container body 1, and is evaporated by the heat.

At that time, the latent heat of vaporization is transferred to the container body 1. Since it is taken away from the object 3 to be processed, the temperature of the object 3 to be processed quickly decreases.

At this time, the evaporated heat medium is transferred to the liquid reservoir 12 via the connecting pipe 18.
The heat exchange device 19 is operated at the same time.

That is, by supplying the cooling heat medium from the inlet/outlet 20, the vaporized heat medium is condensed here. The condensed heat medium flows down from the pipe 21 along the outer wall surface of the container body 1 almost uniformly in the form of a film or layer.

During this process, the wall surface of the container body 1 is cooled. This is the same effect as in the previous case. Cooling proceeds with the liquid condensed by the heat exchange device 6, so even if the temperature drops and the amount of steam decreases.

Since the condensate is supplied by the heat exchanger 19, evaporation within the jacket chamber 4 is actively performed.

When it is necessary to heat the object 3 again.

The supply of the cooling heat medium to the pipe 7 and the heat exchange device 19 may be stopped. As a result, the object 3 to be treated can be quickly heated by the steam heat medium 5' within the jacket chamber 4.

In fact, it is recommended that the start and stop of the supply of the heat medium for cooling be automatically controlled by detecting the temperature of the object 3 to be processed, and when it is necessary to widen the cooling temperature range of the object 3 to be processed. In order to achieve this, the amount of heat supplied to the heat medium in the jacket chamber 4 may be reduced by controlling the frequency of the voltage applied to the electromagnetic induction heating mechanism 13 in accordance with the decrease in the temperature of the object 3 to be processed.

(Effects of the Invention) According to the invention described in detail above, in a container configured to allow heating and cooling, even if the temperature drops due to the progress of cooling, a decrease in cooling capacity can be avoided. be effective.

[Brief explanation of the drawing]

The figure is a sectional view showing an embodiment of the present invention. 1... Container body, 4... Jacket chamber, 5... Heat medium. 6...Heat exchange device, 17.18...Connecting pipe, 19.
...Heat exchange device.

Claims (1)

[Claims] A jacket chamber in which a gas-liquid two-phase heating medium is sealed, which heats the container body by giving and receiving latent heat during condensation, is provided around the container body in which the object to be processed is placed, and A first heat exchange device is installed to cool and condense the vaporized heat medium, and a liquid reservoir is provided at a position separated from the container body, and the heat medium in the liquid reservoir is heated. a first connecting pipe for supplying the heated and vaporized heat medium of the liquid reservoir to the jacket chamber, further provided between the jacket chamber and the liquid reservoir; A second connecting pipe is provided to collect the condensed heat medium in the jacket chamber to the liquid reservoir, and a second connecting pipe is provided between the first connections to condense the vaporized heat medium from the liquid reservoir. A heating and cooling container provided with a second heat exchange device for.