JP2001162159A - Temperature controller - Google Patents

Abstract

(57) [Problem] To provide a temperature controller which can be easily mounted without heat loss of a heat medium. SOLUTION: A heat medium passage 4 such as a jacketed vessel 1 is provided.
A heating tank 17 provided with a heater 18 for heating a heat medium such as water circulated through the heat medium flow path 4 to adjust the temperature of the temperature controlled device 2 having A cooling water supply passage 19, a cooling water discharge passage 21 through which cooling water flows from the heating tank 17, and a heating medium supply port that sends a heating medium from the heating tank 17 to the heating medium inlet 7 of the heating medium passage 4. 23 and a heating medium recovery port 24 for returning the heating medium from the heating medium outlet 9 of the heating medium flow path 4 to the heating tank 17, wherein the casing 16 forming an outer shell is The heat medium inlet 7 and the heat medium supply port 23 were directly connected to each other while being directly fixed to the temperature controller 2, and the heat medium outlet 9 and the heat medium recovery port 24 were directly connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature controller for circulating a heat medium such as water through a temperature control device having a heat medium flow path such as a jacketed vessel to adjust the temperature of the temperature control device. Things.

[0002]

2. Description of the Related Art A temperature controller adjusts the temperature of a temperature controller by circulating a heat medium such as water through a temperature controller having a heat medium flow path such as a jacketed vessel. A heating tank provided with a heater for heating the heating medium, a cooling water supply passage for sending cooling water to the heating tank, a cooling water discharge passage for flowing cooling water from the heating tank, and a heating medium passage from the heating tank. It has a heat medium supply port for sending the heat medium to the heat medium inlet, and a heat medium recovery port for returning the heat medium to the heating tank from the heat medium outlet of the heat medium flow path.

[0003] In a vessel with a jacket, a liquid material that needs to maintain a constant temperature in order to accurately perform a chemical reaction or the like is stored.

A conventional temperature controller is of a stationary type on the floor of a plant, and the above-described heat medium inlet and heat medium supply port, and the heat medium outlet and heat medium recovery port are connected by heat medium pipes, respectively. The heat medium flows through the heat medium pipe to adjust the temperature of the temperature-controlled device so that the temperature of the contents is kept constant.

[0005]

By the way, since various devices are arranged in a plant, it is often impossible to arrange a temperature controller in the vicinity of a device to be temperature-controlled. Was connected through.

As a result, the length of the heat medium pipe is lengthened, and its installation is troublesome, and the heat loss of the heat medium flowing inside the pipe increases. Therefore, there has been a problem that the power consumption of the heater for heating the cooling water increases and the reaction of the temperature control becomes slow.

The present invention has been devised to solve the above-mentioned problems, and an object of the present invention is to provide a temperature controller which can be easily mounted without heat loss of a heat medium. is there.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention circulates through the heat medium flow path to adjust the temperature of a device to be heated provided with a heat medium flow path such as a vessel with a jacket. A heating tank provided with a heater for heating a heat medium such as water to be heated, a cooling water supply passage for sending cooling water to the heating tank, a cooling water discharge passage for flowing cooling water from the heating tank, and the heating tank A heat medium supply port for sending a heat medium to the heat medium inlet of the heat medium flow path, and a heat medium recovery port for returning the heat medium from the heat medium outlet of the heat medium flow path to the heating tank. The casing constituting the outer shell is directly fixed to the temperature-controlled device, the heating medium inlet and the heating medium supply port are directly connected, and the heating medium outlet and the heating medium recovery port are directly connected to each other. It is a concatenation.

According to the above configuration, since the heat medium inlet and the heat medium supply port are directly connected and the heat medium outlet and the heat medium recovery port are directly connected, it is not necessary to provide a heat medium pipe, and the heat medium pipe is directly provided. Since the heat can flow in the heat medium flow path, heat loss of the heat medium can be prevented. Furthermore, since the temperature controller main body is directly fixed to the temperature controller, there is no need to connect piping between various devices in the plant.
There is no need to install the temperature controller.

[0010]

Embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic configuration diagram showing an embodiment of a temperature controller according to the present invention.

First, the configurations of the temperature controller and the temperature controller will be described. In the present embodiment, a description will be given of an example of a vessel with a jacket that stores a resin material in a liquid state and keeps the temperature at a constant temperature as a temperature-controlled device.

As shown, a vessel 1 with a jacket
The temperature control device 2 such as a heat medium flow path 4 around the vessel section 3
Is provided. A heat medium inlet 7 having a connection flange 6 is provided at a lower portion of the jacket 5, and a heat medium outlet 9 having a connection flange 8 is provided at an upper portion. The jacket 5 is partitioned such that the heat medium flows in a spiral shape inside the jacket 5.

A lid 11 is provided on the upper part of the vessel section 3. The lid 11 is provided with a stirring rod 12 for stirring the contents and a motor 14 for rotating the stirring rod 12. I have.

The temperature controller 15 is provided with a heating tank 17 for temporarily storing a heat medium and appropriately heating the heat medium in a casing 16 constituting an outer shell thereof. The heating tank 17 is provided with a heater 18 for heating the heat medium.

The heating tank 17 has a cooling water supply passage 19 for sending cooling water (tap water) from the outside to the heating tank 17.
And a cooling water discharge passage 2 for draining cooling water from the heating tank 17.
1 are connected. The cooling water discharge flow path 21 is provided with a float switch 22 so that when the cooling water in the heating tank 17 reaches a certain amount or more, the cooling water is drained.

The heating tank 17 has a heating medium supply port 23 for sending cooling water as a heating medium from the heating tank 17 to the heating medium inlet 7 of the jacket 5, and a heating medium 1 from the heating medium outlet 9 of the jacket 5.
7 is provided with a heat medium recovery port 24 for returning the heat medium.

Between the heating tank 17 and the heat medium supply port 23,
A temperature sensor 25 that detects the temperature of the heat medium, a circulation pump 26 that circulates the heat medium through the jacket 5, and an on-off valve 27 are provided. An opening / closing valve 28 is provided between the heating tank 17 and the heat medium recovery port 24.
A bypass pipe 29 connected to the downstream side of the circulation pump 26 between the heating medium supply port 23 and the heating medium supply port 23 is connected.

The heat medium supply port 23 and the heat medium recovery port 24
Connection flanges 31 and 32 are provided respectively.
The connection flange 31 is joined to the connection flange 6, the connection flange 32 is joined to the connection flange 8, and the heat medium inlet 7 and the heat medium supply port 23 are directly connected, and the heat medium outlet 9 And the heat medium recovery port 24 are directly connected.

The casing 16 is formed so as to surround and house the components of the temperature controller 15, and is directly fixed to the side surface of the jacketed vessel 1 by bolting or the like to the jacket 5. That is, the temperature controller 15 is fixedly supported on the side surface of the jacketed vessel 1.

A drainage drain 33 is provided at the bottom of the heating tank 17, and an overheat prevention device 34 for discharging the heating medium when the temperature of the heating medium rises excessively is provided at the side of the heating tank 17. Have been.

Next, the operation state and operation of the temperature controller 15 having the above configuration will be described.

A liquid material of a resin raw material is stored in the jacketed vessel 1 and is stirred by a stirring rod 12. In the jacket 5, cooling water heated by the heater 18 is circulated as a heat medium.

First, before the heat medium is circulated in the jacket 5, the on-off valves 27 and 28 are closed, the circulation pump 26 is driven, and the heater 1 is circulated in the temperature controller 15 while being circulated in the temperature controller 15.
The heating is performed in step 8, and the temperature is raised to a predetermined temperature so as not to cause temperature unevenness.

When circulating the heat medium, the heat medium is circulated by opening the on-off valves 27 and 28 and driving the circulation pump 26. At this time, the temperature of the heat medium is detected by the temperature sensor 25, and the heater 18 is controlled so that the temperature becomes substantially constant.

At this time, the heat medium inlet 7 and the heat medium supply port 23 are directly connected, and the heat medium outlet 9 and the heat medium recovery port 24 are directly connected. Since the heat flows directly into the jacket 5 without flowing through the long heat medium pipe, heat loss of the heat medium can be prevented.

Thus, the power consumption of the heater 18 can be reduced, the capacity of the heater 18 can be reduced, and the size of the heater 18 can be reduced. Furthermore, there is no error between the temperature of the heat medium circulating in the temperature-controlled device 2 and the temperature of the heat medium in the temperature controller 15, thereby improving the accuracy of temperature adjustment and speeding up the reaction of temperature control. I can do it.

Further, since the heat medium does not flow through a long flow path as in the prior art and the head thereof can be minimized, the size of the circulation pump 26 can be reduced, and the power consumption thereof can be reduced.

Further, the casing 16 is attached to the jacket 5, and the body of the temperature controller 15 is connected to the jacketed vessel 1.
Since there is no need to provide piping between the various devices of the plant, it is not necessary to attach the temperature controller 15 and the installation space can be saved.

A temperature sensor (not shown) is also provided in the vessel section 3 of the jacketed vessel 1, and when the temperature of the vessel changes due to the inflow of contents into the vessel section 3, the heat medium to be circulated is circulated. Is changed to quickly return the temperature of the contents to a desired temperature.

More specifically, when the temperature of the contents rises, the heater 18 is stopped and the refrigerant supply flow path 1 is turned off.
Cooling water is supplied from 9 to lower the temperature of the heat medium circulating in the jacket 5. At this time, the cooling water being heated is
Overflow from the heating tank 17 and the cooling water discharge passage 21
Is discharged from

Conversely, when the temperature of the contents falls,
Without supplying cooling water from the coolant supply passage 19, the heater 18
And the temperature of the heat medium circulating in the jacket 5 is increased.

In the above embodiment, the case where the content of the temperature controlled equipment 2 is a resin raw material has been described. However, when the content is another and the desired constant temperature is high,
The heat medium may be another fluid having a high evaporation temperature instead of water.

[0034]

As described above, according to the present invention, the excellent effects that the heat loss of the heat medium can be prevented and the temperature controller can be easily attached to the device to be temperature controlled are exhibited.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a temperature controller according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Vessel with jacket 2 Equipment to be heated 4 Heat medium flow path 7 Heat medium inlet 9 Heat medium outlet 15 Temperature controller 16 Casing 17 Heating tank 18 Heater 19 Cooling water supply path 21 Cooling water discharge path 23 Heat medium supply port 24 Heat medium recovery port

Claims (1)

[Claims] 1. A heating tank provided with a heater for heating a heat medium such as water circulated through the heat medium flow path in order to adjust the temperature of a temperature controlled device having a heat medium flow path such as a jacketed vessel. A cooling water supply passage for sending cooling water to the heating tank, a cooling water discharge passage for flowing cooling water from the heating tank, and heat for sending a heating medium from the heating tank to a heating medium inlet of the heating medium passage. A temperature controller having a medium supply port, and a heat medium recovery port for returning a heat medium from the heat medium outlet of the heat medium flow path to the heating tank, wherein a casing constituting an outer shell is formed of the temperature controlled device. Wherein the heat medium inlet and the heat medium supply port are directly connected, and the heat medium outlet and the heat medium recovery port are directly connected.