JP4582891B2 - Boiled kettle scale prevention device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an improvement of a boiled pot used to continuously boil a large amount of small fish, which is mainly a boiled material.
[0002]
[Prior art]
Conventionally, as a boiled pot for continuously boiling boiled materials, an endless hot water channel is created by partitioning a hot water bath made of stainless steel with a partition wall, and a hot boil that flows through the hot water channel. It is known that a boiled material is introduced into hot water and the boiled material is boiled with the boiled water while being boiled (for example, Japanese Patent Laid-Open No. 5-184462).
In addition, in this type of boiled pot, some of the dried material that should flow with the boiled water sinks to the bottom of the water bath and the flow is delayed, so that the residence time in the hot water may become longer and become overboiled. . Therefore, a steam pipe provided with a number of nozzles along the longitudinal direction is attached to the partition wall, and the dried material that sinks near the bottom surface with the steam blown from the nozzles is blown up near the water surface (for example, Fig. 2) of Kaihei 5-55895.
[0003]
[Problems to be solved by the invention]
However, when the above-described invention is carried out, a large potential difference is produced between the boiling water and the water bath or between the boiling water and the partition wall due to the friction between the boiling water containing salt and the steam blown from the nozzle. For this reason, there is a problem that part of the garbage flowing along with the boiled material and the collapsed fish body easily adheres to the water bath and the partition wall, which requires frequent cleaning. In addition, there is a problem in that the current difference is generated in the hot water bath or partition wall made of stainless steel due to the potential difference to promote corrosion.
[0004]
[Means for Solving the Problems]
The above-mentioned problem is that the interior of a hot water bath made of stainless steel is partitioned by a partition wall to form a hot water flow path, and then the boiled material is poured into the boiled water flowing through the hot water flow path. In a boiled pot that is boiled while the material flows along with boiling water, a steam pipe with one end connected to a steam source is provided at the bottom of the partition wall, and the steam pipe is directed toward the bottom of the hot water tank. The problem can be solved by providing a large number of small holes to be opened along the longitudinal direction, providing a large number of connection electrodes on the outer surface of the hot water bath, and connecting the connection electrodes to each other by a copper wire and grounding the connection electrodes.
[0005]
[Action]
Stainless steel generally has a large electrical resistance of nearly 40 times that of copper, but the hot water bath is connected with a wide range of copper wires through a large number of connection electrodes arranged on the outer surface. Even if a slight potential difference occurs between the boiling water and the water bath or between the boiling water and the partition wall due to the friction between the hot water and the steam, the connection electrodes are short-circuited by the electric wires and canceled.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
In FIG. 1, 10 is a boiled pot which is an implementation of the present invention. The boiled pot 10 is assembled by welding a stainless steel plate and welding it, and comprises a box-shaped hot water tank 11 having an open top surface. Reference numeral 12 denotes a frame provided to lift the hot water tank 11 from the floor to a predetermined height. The hot water tank 11 is placed on the frame 12 and fixed by bolts (not shown). A hot water flow path 14 partitioned by a partition wall 13 is formed inside the hot water tank 11. The hot water flow path 14 is configured in an endless manner in which a start end and a terminal end are coupled by a plurality of linear portions arranged in parallel and a bent portion coupled to the end thereof, and salt water is added as boiling water therein. is there.
[0007]
Reference numeral 21 denotes an input conveyor for supplying the dried shirasu fish, and reference numeral 22 denotes a take-out conveyor for lifting the boiled shirasu fish from the boiling water. A screw 23 is provided in the hot water passage 14 and is driven by an external electric motor (not shown) with a speed reducer via a drive shaft 24 to circulate the boiling water. In addition, the above structure does not have a big difference with the structure of the conventional cooking pot.
[0008]
The partition wall 13 is made of a stainless steel plate, and as shown in FIG. 5, four steam pipes 25, 25 extending in the longitudinal direction in parallel to the bottom of the hot water tank 11 are provided at the lower portion thereof. . The steam pipes 25 and 25 are supplied with high-pressure and high-temperature steam at around 170 ° C. from a boiler (not shown) through a feed pipe 25 a arranged in the vertical direction, thereby heating the boiling water to around 85 ° C.
[0009]
Out of the four steam pipes 25, 25, small holes 26, 26 that open obliquely downward are formed in one side at the lower end on both sides. Therefore, the steam supplied through the steam pipe 25 is ejected from the small holes 26 and 26 toward the bottom surface of the hot water channel 14, and when the generated bubbles rise, a rising water flow is generated and sinks to the bottom of the water tank 11. Bring up the boiled dried material again. In addition, the temperature in the hot water flow path 14 is made uniform, and the fish is not evenly boiled to make it boiled uniformly.
[0010]
In the present invention, as shown in FIGS. 3 and 4, a large number of connection electrodes 15, 15 are attached to the lower surface of the water bath 11 made of sheet metal. The connection electrodes 15 and 15 are arranged in a grid pattern and are detachably attached by bolts (not shown) welded to the bottom surface of the hot water tank 11. Reference numeral 16 denotes an electric wire for connecting the connection electrodes 15 and 15 to each other, and a copper wire having an electric resistance lower than that of a stainless steel material that is a material of the hot water tank 11 is used. Reference numeral 17 denotes an earth wire, and the connection electrodes 15 and 15 are grounded via the electric wire 16. A drain hole 27 is installed at the bottom of the hot water tank 11 and is used when exchanging boiling water.
[0011]
When the fish of the simmered material flows in the hot water channel 14 together with the hot boiled water, the stainless steel bath 11 is charged by the friction between the steam blown from the small holes 26 and 26 and the boiling water in the hot water channel 14. That is, a potential difference is generated between the hot water tank 11 or the partition wall 13 and the boiling water. Since this potential difference is different for each of the partition walls 13 arranged side by side, if current flows to the bottom of the hot water tank 11 connecting the adjacent partition walls 13 and 13, it causes corrosion and waste that flows with the dried material. A part of the broken fish body easily adheres to the water bath 11 or the partition wall 13.
[0012]
However, according to the present invention implemented in this aspect, the connection electrodes 15 and 15 are attached to the outer surface of the bottom of the hot water bath 11, and the connection electrodes 15 and 15 are connected to each other by the electric wires 16 having a small electric resistance. Therefore, the connection electrodes 15 and 15 are at the same potential, and are grounded to the ground by the ground wire 17 and held at 0 potential.
[0013]
【The invention's effect】
According to the invention of claim 1, the hot water bath 11 is maintained at the same potential by the large number of connection electrodes 15, 15 provided on the wide bottom surface and the electric wires 16 connecting them, so that the hot water bath 11 and the partition wall 13 are maintained. Since there is no problem of causing electric corrosion or dust adhering to the wall surface, there is an effect of obtaining a boiled pot that is easy to maintain and has a long life.
[Brief description of the drawings]
FIG. 1 is an external view of a boiled pot which is an embodiment of the present invention.
FIG. 2 is a plan view of the apparatus shown in FIG.
3 is a rear view of the apparatus shown in FIG. 1. FIG.
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is an enlarged cross-sectional view showing an essential part of FIG. 4;
[Explanation of symbols]
10 .... Boiled pot 11 .... Bath 12 ...... Frame 13 ...... Partition wall 14 ... Hot water channel 15 ... Connecting electrode 16 ... Electric wire 17 ...・ ・ ・ Earth wire 21 ・ ・ ・ Input conveyor 22 ・ ・ ・ Extract conveyor 23 ・ ・ ・ Screw 24 ・ ・ ・ Drive shaft 25 ・ ・ ・ Steam pipe 25 a ・ ・ ・ Supply pipe 26 ・ ・ ・Small hole 27 ... Drain hole

Claims (1)

The inside of a hot water bath made of stainless steel is partitioned by a partition wall to form a hot water channel, and the dried material is put into the boiling water flowing through the heated water channel, and the dried material is used as the boiling water. In a boiled kettle that is boiled while flowing, a steam pipe with one end connected to a steam source is provided at the bottom of the partition wall, and a number of small holes that open toward the bottom of the water bath are provided in the steam pipe. An apparatus for preventing scale adhesion of a boiled pot provided along a longitudinal direction and provided with a plurality of connection electrodes dotted on the outer surface of the hot water tank and connected to each other by a copper wire.

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