JPS608713Y2 - microwave heating device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a microwave heating device for sterilizing objects to be heated by microwave heating.

In conventional devices of this type, a pipe with low dielectric loss is installed through the heating chamber to which microwaves are supplied, and a fluid object to be heated, such as soup liquid, is conveyed through the pipe and the object is sterilized by microwave heating. are doing.

Further, in such an apparatus, in order to uniformly heat and sterilize the object to be heated, an agitator having a length approximately equal to the length of the pipe is installed inside the pipe, and the object to be heated is stirred by the agitator.

However, since the above-mentioned pipe actually has a small inner diameter of about 2 cm and a length of about 2 m and is long and thin, the stirring body itself must also be long and thin, and in this case, precision in forming the stirring body is required. It is quite difficult.

The present invention has been devised in view of these points, and a microwave heating device according to an embodiment of the present invention will be described in detail below with reference to the drawings.

1 is a heating chamber, 2 is a magnetron that supplies microwaves to the heating chamber through a waveguide 2', and 3 is an inner diameter 2 which is made of Teflon with small dielectric loss and is disposed through the heating chamber 1.
cm main pipe 4 is a coupling pipe having an inlet pipe 5, and the coupling pipe is press-fitted into a microwave seal ring 6 to be coupled to the heated material inlet side of the main pipe 3.

7 is a hopper into which a liquid to be heated 8 such as soup liquid is charged;
9 is a feeding pipe 5 for the heated material 8 put into the hopper;
A transfer pump 10 conveys the heated material to the main pipe 3 via the coupling pipe 4, a delivery pipe 10 having an inner diameter smaller than the inner diameter of the main pipe 3 and disposed on the main pipe 3 on the delivery side of the heated material, and 11 a delivery pump for carrying the material to the main pipe 3. This is a cooling section for cooling the object to be heated 8 delivered to the delivery pipe, and the cooling section is configured to supply cooling water to the outside of the delivery pipe 10.

Reference numeral 12 denotes a pressure adjusting section for adjusting the pressure inside the main pipe 3 and keeping it constant.

For example, if the pressure is maintained at 2 atmospheres by adjustment in the adjustment section, the object to be heated 8 can be sterilized at a sterilization temperature of 110°C.

13.13... are a plurality of rectangular blades made of Teflon with low dielectric loss, the length of the blades is 1, the thickness t is approximately 7 cm and 3 cm, respectively, and the width W is the inner diameter of the main pipe 3. , or approximately 2 cm.

Further, the blade bodies 13, 13, . . . are provided with cuts 1114, 14, .

Then, the blade bodies 13, 13, . They are sequentially inserted into the main pipe 3.

In this case, adjacent blade bodies 13.13... are inserted so that their grooves 14°14... mesh with each other, so that the blade bodies 13.13...
The eaves 3 are connected to each other at right angles to the longitudinal direction thereof, thereby forming a stirring means 15 for stirring the object to be heated 8 .

Reference numeral 16 denotes a drive shaft pivotally supported at the end surface of the coupling pipe 4, and one end of the drive shaft has rotational speeds of 52r, P, m, etc., for example.
A drive motor 17 is directly connected to the drive motor 17, and a Teflon piece 18 is connected to the other end.
A groove 19 is formed in which a groove is mounted.

When the coupling pipe 4 is press-fitted into the seal ring 6, the Teflon piece 18 is held in the cut groove 14 of the blade body 13 at the left end.

When the stirring means 15 is rotated by the motor 17 and the object to be heated 8 conveyed into the main pipe 3 is stirred by the pump 9, the object to be heated 8 is uniformly sterilized by microwave heating.

As is clear from the above description, according to the present invention, the stirring means is composed of a plurality of appropriately sized blade bodies, and such blade bodies can be easily formed, so that the stirring means can be easily formed.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the main part, and FIGS. 3A and 3B are a plan view and a side view of the main part, respectively. 1... Heating chamber, 2... Magnetron,
3... Main pipe, 9... Conveying pump,
13, 13... Impeller body, 15... Stirring means.

Claims (1)

[Scope of utility model registration request] a heating chamber, a microwave supply means for supplying microwaves to the heating chamber, a pipe with low dielectric loss disposed through the heating chamber, a conveyance means for conveying the object to be heated into the pipe, and an inner diameter of the pipe. A microwave heating device characterized in that it is formed by connecting a plurality of blade bodies having substantially equal dimensions in the longitudinal direction of the pipe, and includes stirring means for stirring an object to be heated.