JPH09250707A - Heating-cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating-cooling device to simultaneously perform heating and cooling. SOLUTION: A plurality of reaction ovens 1 and 2 are arranged. A jacket part 3 of the reaction oven 1 is communicated with a heating medium reservoir part 13. A steam feed pipe 5 is connected to the interior of the heating medium reservoir part 13 through a steam ejector 6. An outlet pipe 23 of the steam feed pipe 5 is connected to a condensate cooler 25. A line 30 is installed throughout a range from the lower part of the condensate cooler 25 to the jacket part 4 for cooling. The jacket part 4 for cooling is connected to a suction chamber 9 of the steam ejector 6 through the line 31 and an on-off valve 32.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a heating and cooling device for heating and cooling. Specifically, there are various reaction kettles, food distillers, concentrators, sterilizers, and the like.

[0002]

2. Description of the Related Art As a conventional heating / cooling device, there is, for example, one disclosed in Japanese Patent Laid-Open No. 4-349933. This is because one heat exchanger is provided with a plurality of heating / cooling chambers and heating steam is supplied to the heating / cooling chambers to heat an object to be heated, or the heating / cooling chambers are cooled for cooling. Water is supplied to cool the object to be cooled.

[0003]

The conventional heating / cooling device described above can heat and cool with one heat exchanger, but there is a problem that heating and cooling cannot be performed at the same time. There are many cases where production efficiency can be greatly improved by performing heating and cooling at the same time.

Therefore, an object of the present invention is to obtain a heating / cooling device capable of simultaneously performing heating and cooling.

[0005]

Means for Solving the Problems The means of the present invention taken to solve the above-mentioned problems comprises a heat exchanger for accommodating a heat exchange object and a heat exchange chamber for heating or cooling the heat exchanger. Which heats or cools an object to be heat-exchanged by supplying a heating medium or a cooling medium into the heat exchange chamber by reducing the pressure in the heat exchange chamber to a pressure below atmospheric pressure or a low pressure state slightly higher than atmospheric pressure. In, a plurality of heat exchangers are arranged to provide a heat exchange chamber for heating and a heat exchange chamber for cooling, respectively, and a heating medium reservoir is connected in series in the heating heat exchange chamber. A steam supply pipe is connected to the section via a steam ejector, the outlet pipe of the steam supply pipe is connected to a heat exchange chamber for cooling, and the heat exchange chamber for cooling is connected to the steam exchange pipe.
It is connected to the suction chamber of the mu ejector.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION By supplying steam from a steam ejector to a heating medium reservoir connected to a heat exchange chamber for heating, the heating medium is heated and evaporated to become heating medium vapor, and heat exchange is performed. Diffuse into the room to heat the heat exchanger. The heating medium that has been heated and condensed becomes a liquid and drops into the heating medium reservoir,
It is heated again by steam to become heating medium steam.

Condensate of the steam, which has condensed by heating the heating medium and has become low temperature, reaches the cooling heat exchange chamber through the outlet pipe.
The heat exchange chamber for cooling is connected to the suction chamber of the steam ejector, and the suction force of the steam ejector causes a reduced pressure state below atmospheric pressure or a low pressure state slightly higher than atmospheric pressure. The generated condensate immediately evaporates while absorbing the heat of the heat exchanged object, and vaporizes and cools the heat exchanged object by the latent heat of vaporization.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. In this embodiment, an example in which the reaction kettles 1 and 2 are used as heat exchangers is shown. 1, a plurality of reaction kettles 1 and 2, a jacket part 3 as a heat exchange chamber for heating, a jacket part 4 as a heat exchange chamber for cooling, and a steam ejector 6 attached to a steam supply pipe 5. To form a heating and cooling device.

An on-off valve 7 and a pressure control valve 8 are provided on the steam supply pipe 5.
Is attached and connected to the nozzle in the suction chamber 9 of the steam ejector 6. Steam ejector 6 diffuser 10
Is connected via a switching valve 11 and a pipe 12 to a heating medium reservoir 13 which is connected to the jacket 3 for heating. The heating medium reservoir 13 stores the heating medium 14 therein, and arranges the vapor supply pipe 5 into a coil shape 15 inside the heating medium reservoir 13.
6 communicates with the jacket portion 3 for heating.

The upper part of the heating medium reservoir 13 is connected to the suction chamber 9 of the steam ejector 6 via a pipe line 17 and an opening / closing valve 18. A sensor 1 for detecting the temperature or pressure inside the jacket 3 is provided on the heating jacket 3.
Attach 9.

The reaction kettles 1 and 2 are connected to a communication pipe 20 and a valve 21 so that they can communicate with each other. Similar to the reaction kettle 1, a jacket 4 is provided over substantially the entire circumference of the reaction kettle 2, and a sensor 22 for detecting the temperature or pressure inside the jacket 4 is attached to the upper portion thereof.

The condensate cooler 25 is connected to the outlet pipe 23 of the coiled steam pipe 15 of the heating medium reservoir 13 via a steam trap 24. The condensate cooler 25 stores condensate discharged from the steam trap 24 therein and cools the condensate through a cooling water pipe 26. The cooled condensate is passed through the conduit 30 to cool the jacket portion 4
Is supplied to the outer surface of the reaction kettle 2 from above. The jacket portion 4 is connected to the suction chamber 9 of the steam ejector 6 via the conduit 31 and the opening / closing valve 32.

An atmosphere communication pipe 28 is attached to the upper part of the condensate cooler 25 via a valve 27, and the opening of the valve 27 is adjusted to adjust the pressure inside the condensate cooler 25. Further, a temperature sensor 29 is attached to the lower part to detect the temperature of the condensate.

When heating is carried out in the reaction kettle 1, the steam supply pipe 5
Open and close the on-off valve 7 of the steam ejector 6 from the steam ejector 6
By supplying steam for heating to the heating medium reservoir 13 via 1, the heating medium 14 is heated and evaporated to become heating medium vapor, which diffuses into the jacket portion 3 through the communication passage 16, Steam heating 1 As the heating medium, it is possible to use ordinary water, a so-called heat medium such as trade name Dowsome, or the like. The vapor that has heated the reaction kettle 1 is condensed to become a liquid again, and drops from the communication passage 16 into the heating medium reservoir 13.

The inside of the jacket 3 for heating can be kept in a predetermined depressurized state at the time of manufacturing the apparatus, or the opening / closing valve 18 can be opened / closed to obtain a desired depressurized state by the suction force of the steam ejector 6. Can also be In this case, by closing the opening / closing valve 11 and opening the opening / closing valve 35, the inside of the heating medium reservoir 13 and the inside of the jacket 3 are
The pressure can be reduced until the suction force of the maximum steam ejector 6 becomes equal. As described above, by appropriately adjusting the pressure in the jacket portion 3, the temperature corresponding to the pressure is adjusted, and the heat exchange target can be heated by the medium vapor having the predetermined temperature.

The steam that has heated the heating medium in the heating medium reservoir 13 becomes condensate, and the condensate cooler 2 passes from the steam trap 24.
Run down into 5. The condensate cooled in the condensate cooler 25 to a predetermined temperature by the cooling water pipe 26 is supplied from the pipe 30 into the jacket portion 4 for cooling. Since the jacket portion 4 is connected to the suction chamber 9 of the steam ejector 6 via the pipe line 31 and is in a predetermined depressurized state, the supplied condensate immediately takes away the heat of the heat exchanged object and immediately. Evaporative cooling is performed by evaporating. The vaporized vapor is sucked into the steam ejector 6 and mixed with the heating vapor to form the heating medium reservoir 1
To 3.

Although the condensate cooler 25 is used in this embodiment, the condensate cooler 25 can be used if the vaporization temperature required by the cooling jacket 4 can be covered by the natural cooling of the condensate. Is not always necessary.

[0018]

As described above, according to the present invention, it is possible to simultaneously perform heating and cooling by a plurality of heat exchangers, and it is possible to greatly improve the heat exchange efficiency.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of a heating / cooling device of the present invention.

[Explanation of symbols]

 1, 2 Reactor 3 Heating jacket 4 Cooling jacket 5 Steam supply pipe 6 Steam ejector 9 Suction chamber 13 Heating medium reservoir 14 Heating medium 25 Condensate cooler 26 Cooling water pipe 31 Pipe line

Claims (1)

[Claims] 1. A heat exchanger comprising a heat exchanger for containing a substance to be exchanged and a heat exchange chamber for heating or cooling the heat exchanger, wherein the heat exchange chamber is in a depressurized state below atmospheric pressure or slightly higher than atmospheric pressure. For heating or cooling a heat exchange object by supplying a heating medium or a cooling medium to the heat exchange chamber in a low pressure state, arrange a plurality of heat exchangers and heat exchange chamber for heating and cooling And a heat exchange chamber for heating, and a heating medium reservoir is continuously provided in the heat exchange chamber for heating, and a steam supply pipe is connected to the heating medium reservoir through a steam ejector, and the steam supply pipe is also connected. The outlet pipe of the above is communicated with a heat exchange chamber for cooling, and the heat exchange chamber for cooling is connected to the suction chamber of the steam ejector.