JPH09250706A - Heating-cooling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating-cooling device to simultaneously perform heating and cooling. SOLUTION: A diffuser 9 of a steam ejector 4 is connected to jacket parts 14 and 15 of a plurality of reaction ovens 1 and 2 through on-off valves 10 and 11. The jacket parts 14 and 15 are also connected to a suction chamber 8 of the steam ejector 4 through on-off valves 16 and 17. In case of heating, steam for heating is fed to the jacket parts through the steam ejector 4 to effect heating. In case of cooling, the suction chamber 8 of the steam ejector 4 is connected to the jacket parts and by bringing the jacket parts into a pressure reduction state, cooling liquid is vaporized for vaporization coiling.

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 In order to solve the above-mentioned problems, the means of the present invention comprises a heat exchanger having a heating / cooling chamber and steam or a cooling fluid as a heating fluid for the heating / cooling chamber. A fluid conduit for supplying cooling water, valve means for controlling the fluid provided in the fluid conduit, and suction means for sucking the fluid in the heating / cooling chamber. A plurality of exchangers are arranged, the steam ejector is connected to the inlet side of the plurality of heat exchangers via valve means, and the suction chamber and heating / cooling chamber of the steam ejector are connected via valve means. It is a thing.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A plurality of heat exchangers can be heated by operating valve means to supply steam for heating to one heat exchanger through a steam ejector. By connecting the heating / cooling chamber of the other heat exchanger to the suction chamber of the steam ejector, the heating / cooling chamber is depressurized by the suction force of the ejector, and the cooling liquid evaporates and vaporizes. The object to be cooled can be vaporized and cooled by the latent heat of vaporization.

[0007]

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. In FIG. 1, a plurality of reaction kettles 1 and 2, a steam ejector 4 attached to a steam supply pipe 3 for heating, and a combination pump 5 as a suction means form a heating / cooling device.

An on-off valve 6 and a pressure control valve 7 are provided on the steam supply pipe 3.
Is attached and connected to the nozzle in the suction chamber 8 of the steam ejector 4. The diffuser 9 of the steam ejector 4
Reactor 1, via on-off valves 10, 11 and pipes 12, 13.
It is connected to the jacket portions 14 and 15 as the heating and cooling chambers of No. 2. The suction chamber 8 of the steam ejector 4 is provided with the jacket portion 1 through the opening / closing valves 16 and 17 and the pipelines 18 and 19.
Connect with 4, 15.

A plurality of reaction kettles 1 and 2 arranged in parallel to the steam ejector 4 are connected by a communication pipe 20 and a valve 21 so that the heat exchange objects can communicate with each other. Opening valves 22, 23, and
The ejector 28 of the combination pump 5 is connected via 24 and 25 and the steam traps 26 and 27.

The combination pump 5 is a combination of an ejector 28, a tank 29, and a circulation pump 30, and the water in the tank 29 is removed by operating the circulation pump 30.
Is supplied to the tank 29 to cause suction, and then returned to the tank 29.

A branch pipe 32 that branches the circulation path 31 of the combination pump 5 is connected to the jacket portions 14 and 15 via open / close valves 33 and 34. From the branch pipe 32, a part of the circulating water of the combination pump 5 is used as a cooling liquid for the jacket 1
4, 15 can be supplied.

In the tank 29, the cooling water supply pipe 35 and the
Install the blower tube 36. Although not shown, a temperature sensor for detecting the liquid temperature in the tank 29 is attached,
By detecting the fluid temperature in the tank 29, that is, the liquid temperature flowing down the ejector 28 of the combination pump 5, and controlling the amount of cooling water from the cooling water supply pipe 35, the suction force at the ejector 28 can be controlled. it can.

The circulation path 31 is separately branched and a surplus water discharge pipe 37 is attached via an opening / closing valve 38.

When heating and cooling are performed simultaneously, for example, when heating is performed in the reaction kettle 1 and cooling is performed in the reaction kettle 2, the opening / closing valve 6 of the steam supply pipe 3 is opened to open / close the steam ejector 4. Through the valve 10, the jacket portion 14 of the reaction kettle 1
The heating steam is supplied to the suction chamber 8 of the steam ejector 4 and the jacket portion 15 of the reaction vessel 2 by connecting the opening / closing valves 11 and 16 and the opening / closing valve 17 to each other. On the other hand, the opening / closing valve 34 is opened in the jacket portion 15 to supply a part of the circulating fluid of the combination pump 5 as the cooling liquid from the branch pipe 32. Therefore, the jacket portion 1 of the reaction kettle 1
4 is heated by the steam for heating, and the jacket portion 15 of the reaction kettle 2 is depressurized by the suction force of the steam ejector 4, and the cooling liquid is vaporized and vaporized to generate the latent heat of vaporization. Evaporative cooling is performed.

Condensate of steam condensed by heating in the jacket portion 14 of the reaction kettle 1 is steamed under the jacket portion 14.
It is sucked by the ejector 28 of the combination pump 5 from the mutrap 26 through the opening / closing valve 23 and reaches the inside of the tank 29.

A part of the vapor evaporated and cooled in the jacket portion 15 of the reaction kettle 2 is sucked by the steam ejector 4 and mixed with the heating vapor to be supplied to the jacket portion 14 of the reaction kettle 1. At the same time, the remaining portion of the evaporated vapor and the cooling liquid remaining without being vaporized are sucked by the ejector 28 of the combination pump 5 to the tank 29 through the opening / closing valves 24 and 25 and the steam trap 27 in the lower portion of the jacket portion 15.

When the heating and cooling of the reaction kettles 1 and 2 are performed in reverse, that is, when the reaction kettle 1 is cooled and the reaction kettle 2 is heated, the on-off valves of the reaction kettles 1 and 2 are opened and closed. The jacket part 14 of the suction chamber 8 of the steam ejector 4
It is possible to cool the reaction vessel 1 by connecting with the branch pipe 32 and the on-off valve 33 to supply the cooling liquid.
The reaction vessel 2 can be heated by supplying the heating steam to the jacket portion 15 of the reaction vessel 2 from the on-off valve 11 and the pipe 13.

[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 Steam supply pipe 4 Steam ejector 5 Combination pump 8 Suction chamber 14, 15 Jacket part 28 Ejector 29 Tank 30 Circulation pump 32 Branch pipe

Claims (1)

[Claims] 1. A heat exchanger having a heating / cooling chamber, a fluid conduit for supplying steam as a heating fluid or cooling water as a cooling fluid to the heating / cooling chamber, and a fluid conduit provided in the fluid conduit. A valve means for controlling the fluid and a suction means for sucking the fluid in the heating and cooling chamber, wherein a plurality of heat exchangers are arranged, and the valve means is provided on the inlet side of the plurality of heat exchangers. And a steam ejector, and a suction chamber and a heating / cooling chamber of the steam ejector are connected via a valve means.