JPH0910107A - Water boiler, and noodle boiler using the same - Google Patents

Abstract

PURPOSE: To prevent a low temperature region from being generated in the lower end in a water boiler provided on the outer periphery of the shell of a bottomed tubular heating tank for storing heated water with a heating means by allowing convection to reach the lower end of heating region of the heating means in the heating tank. CONSTITUTION: A guide tube 6 for guiding descending flow provided on the upper end of a storing part of heated water nearly in the center part of a heating tank 1 with an inflow port and in the lower end with an outflow port is provided to locate the outflow port below the heating region of a heating means 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater and a noodle boiler using the same.

[0002]

2. Description of the Related Art As a noodle boiling device, there is one disclosed in Japanese Utility Model Publication No. 5-85318. This device has a structure in which high-pressure and high-temperature hot water is stored in a processing tank portion for boiling noodles, and noodles are put into this. According to this, since the noodles are boiled by the hot water maintained at a temperature higher than 100 ° C., the noodles are boiled in a shorter time than when boiled under atmospheric pressure.

Boiled noodles are discharged together with hot water.
Therefore, in order to boil noodles continuously with this device,
It is necessary to prepare this high-pressure high-temperature hot water in a short time. For this reason, in the above-mentioned conventional technique, a plurality of heating tanks are prepared and hot water of a predetermined temperature is finally obtained while passing through these. Thereby, the hot water at the predetermined temperature is prepared in the heating tank in front of the processing tank, and after completion of the noodle boiling treatment, the hot water in the heating tank can be used for the noodle boiling treatment. Therefore,
With this conventional one, the noodle boiling work can be performed continuously.

However, in this conventional apparatus, a plurality of heating tanks are prepared in addition to the processing tank, and therefore, when the work of one day is completed, it is necessary to discharge the hot water from the heating tank. In addition, since it is necessary to prepare at least a plurality of heating tanks having the same size as the processing tank, the entire apparatus becomes large accordingly. As a means for solving this inconvenience, there has already been proposed in Japanese Patent Application No. 7-76122.

As shown in FIG. 1, this product has a treatment tank (1a) formed by closing the upper and lower ends of a thick iron cylinder with stoppers for ball valves. A coil (2a) for electromagnetic heating is wound around the outer circumference of the body, and a high-frequency current is supplied to this coil (2a) to change the magnetic flux, which causes electromagnetic induction current in the body of the processing tank (1a) To generate heat in the treatment tank (1a).

In this prior art, since the treatment tank (1a) is heated by electromagnetic induction, this treatment tank (1a)
Can be heated at high speed, and the water or hot water supplied into the treatment tank (1a) can be turned into high-temperature hot water in a short time. Further, unlike the conventional case, a plurality of heating tanks are not prepared, so that the entire size can be reduced. However, this prior art has a problem that a part of boiled noodles is poorly boiled.

By the electromagnetic induction heating, the water to be heated near the inner peripheral surface of the treatment tank (1a) is first heated. The heated water ascends to the upper part of the storage area of the heated water, then gathers in the central portion thereof and descends, and convects so as to rise again due to the heating. Due to this convection, the temperature of the storage area is gradually made uniform. However, in this prior art, the temperature rise in a certain range at the lower end of the processing tank (1a) is insufficient. Since this is heating only from the body of this processing tank (1a), convection easily causes a short cycle, and the processing tank
This is because the descending flow at the center of (1a) does not reach the lower end of the heating area by the coil (2a).

[0008]

[Technical Problem] The present invention has been made in view of such a point, and is "a bottomed cylindrical heating tank for storing water to be heated.
A water heater equipped with heating means (2) on the outer circumference of the body of (1)
In (1), the problem is to prevent convection from reaching the lower end of the heating area of the heating means (2) in the heating tank (1) so that a low temperature area does not occur at the lower end.

[0009]

[Technical Means] The technical means of the present invention taken in order to solve the above-mentioned problems are as follows: "The heating water (1) is provided with an inlet at its upper end and a lower end at the substantially central portion of the heated water reservoir. Is provided with a guide cylinder (6) for guiding the descending flow having an outlet, and the outlet is located below the heating area of the heating means (2). '

[0010]

The above technical means of the present invention operates as follows. The heated water heated near the inner surface of the heating tank (1) is
After rising to the upper end of the storage part, the heating tank (1)
Convection gathers in the center of the area and descends. At this time,
A guide tube (6) having an inflow port at the upper end and an outflow port at the lower end is provided in the storage part of the heated water in the central part, so that the descending flow in the central part is Guide tube (6)
After flowing in from the inflow port of, it descends in this guide cylinder (6). Since the outlet of the guide tube (6) is located below the heating area of the heating means (2), the descending flow flows out from below the lower end of the heating area. Therefore,
The convection of the heated water reaches the lower end of the heating zone.

[0011]

According to the present invention having the above configuration, the following specific effects are obtained. In this case, the heating means in the heating tank (1)
Since the convection of the heated water reaches the lower end of the heating area of (2), the temperature of the lower end is sufficiently increased. Therefore, when the heating tank (1) is a processing tank for boiled noodles, the boiled amount of the noodles becomes more uniform.

According to the invention of claim 2, the "guide cylinder
(6) the outlet is located near the bottom of the heating tank (1) '', the heated water that has descended inside the guide tube (6) is guided by the guide at the lower end of the storage area. Since it flows out of the cylinder (6), the convection of the heated water extends over almost the entire storage area. Therefore, the temperature equalizing effect described above is further improved. As a result, when the heating tank (1) is a processing tank for boiled noodles, the amount of boiled noodles becomes even more uniform.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. In this example, noodles were boiled for a short time under high temperature and high pressure on a noodle-boiler. In this case, as shown in FIG. 2, a top plate (1
6) and at the same time, the lower end of the tubular body (11) is closed by the plug body (V) of the electric second ball valve (B ₂ ) connected to the tubular body (11), so that the noodle boil treatment can be performed. Treatment tank (1
a) is formed.

This cylindrical body (11) is provided on the thick main body (110).
On the other hand, if the large diameter part (12) with
The lower part (13) has a smaller inner and outer diameter than the main part (110).
Is a continuous structure, and is connected to the upper end of the large diameter portion (12).
The top plate (16) that has been removed is a cylinder at a position eccentric from its center.
Part (17) is projected. The lower end of this tube (17) is the processing tank
It is open to the inside of (1a).
Formula 1st ball valve (B ₁) Are connected in series, and the plug (V) of this
The passage hole of is the input port (14) for pasta. on the other hand,
The second ball ball continuously provided at the lower end of the reduced diameter portion (13).
B (B_TwoThe through hole of the plug (V) of () is the discharge port (15).
The inner peripheral surfaces of the upper end and the lower end of the main body part (110) are tapered.
It is a superficial surface, and the large diameter part (12) and the reduced diameter part (13) are
It is smoothly continuous. As a result, the above-mentioned input port (14)
The pasta put in from the inside is smoothly inserted into the processing tank (1a).
As it is cooked, the boiled pasta is discharged from the outlet (15).
It is discharged smoothly.

The outer peripheral surface of the main body (110) of the cylindrical body (11) is
A coil (2a) for electromagnetic heating is formed by being surrounded by a heat insulating material (D), and a conductive wire being wound around substantially the entire area of the heat insulating material (D). This coil (2a) serves as the heating means (2) described in claim 1. The coil (2a) is electrically connected to an electromagnetic unit (20) for causing a change in magnetic flux. An induced current is generated in the main body portion (110) due to the change in the magnetic flux, and since the main body portion (110) is made of thick iron,
The main body (110) self-heats.

The operation of the electromagnetic unit (20) is controlled by a control device.
It is controlled by (3). This control device (3) has a temperature sensor (31) for detecting the middle temperature of the main body (110).
The detected temperature signal (311) from the
In (3), the set temperature signal (312) and the detected temperature signal (311)
If the detected temperature is lower than the set temperature, the electromagnetic unit (20) turns on and the coil
When (2a) becomes conductive and reaches the set temperature, it is turned "off".
As a result, the main body part (110) is maintained at the set temperature.

The large diameter portion (12) of the cylindrical body (11) has an opening / closing valve (4
A water supply circuit (4) provided with 1) is connected, and water or hot water is supplied from the water supply circuit (4) into the treatment tank (1a). The on-off valve (41) is opened or closed by a control signal from a water supply control device (40) described later. The top plate (16) is provided with an electrode sensor (51), the electrode (52) of which is the treatment tank.
It extends into (1a). The lower end of the electrode (52) matches the stored water level (set water level) required for noodle boiling, and when the set water level is reached by the water supply, the electrode sensor (51) turns on. A signal is applied to the water supply control device (40). In this embodiment, the set water level is set to the treatment tank (1
The water level is set to match the upper edge of the main body (110) of a).

Further, in the processing tank (1a), the processing tank is
At the center of (1a), there is provided an elongated cylindrical body (60) extending from the upper end to the lower end of the treatment tank (1a). This cylinder
In (60), the portion below the set water level becomes the guide tube (6) described in claim 1 above. A plurality of holes (61) (61) are provided on a peripheral wall of the cylindrical body (60) in a certain range below the height corresponding to the set water level, and these holes (61) (61) are provided. Is the inflow port described in claim 1. Also, this cylinder (60)
The lower end of the is open downward, and this serves as the outlet (62) according to the above-mentioned claim 1. A predetermined gap is provided between the outlet (62) and the plug (V) of the second ball valve (B ₂ ). The cylindrical body (60) is connected to the top plate (16),
The upper end of the cylindrical body (60) is formed in a tapered shape.
Therefore, the introduction of pasta into the treatment tank (1a) from the introduction port (14) is not hindered. Further, when the top plate (16) is removed from the upper end of the cylindrical body (11), the cylindrical body (60) is also removed together with the processing tank (1a).
It is easy to clean the inside of the processing tank (1a), etc.

An exhaust valve (53) and a safety valve (54) are connected to the top plate (16). The former exhaust valve (53) is used to reduce the pressure in the processing tank (1a), which is at a pressure higher than atmospheric pressure, to atmospheric pressure when the processing tank (1a) is opened after the noodle boiled processing is completed. It will be opened temporarily. In this embodiment, the valve is opened even when water is supplied to the treatment tank (1a), and the water supply operation when the inlet (14) and the outlet (15) are closed is smooth. It is tight.

The latter safety valve (54) is configured to automatically open when the internal pressure in the processing tank (1a) exceeds the set pressure.
The noodle boiler having the above-mentioned configuration performs the following noodle boiling processing. First, the output from the water supply control device (40) is the on-off valve.
(41) and the exhaust valve (53) are input, and these are opened simultaneously. As a result, water is supplied from the water supply circuit (4) into the treatment tank (1a), and the water supply proceeds smoothly by opening the exhaust valve (53). When the stored water level in the treatment tank (1a) reaches the set water level, the electrode sensor (51) detects this and the electrode sensor (5
The signal from 1) is input to the water supply control device (40), and the output from the water supply control device (40) at this time causes the on-off valve (41).
Is closed and at the same time the exhaust valve (53) is closed. As a result, the inside of the processing tank (1a) is in a sealed state. In addition, in parallel with this water supply operation, the processing tank is operated by the operation of the control device (3) described above.
The temperature of (1a) is maintained at the preheat set temperature (120 ° C).

Thereafter, the charging port (14) is opened and the pasta is charged, and after the charging, the charging port (14) is closed. Next, the control device
By the operation of (3), the temperature of the processing tank (1a) is raised to the high temperature side preset temperature (130 ° C.). When performing the heating operation of the treatment tank (1a), the heated water near the inner peripheral surface of the treatment tank (1a) heated by heating, up to the upper end of the water storage area in the treatment tank (1a) After climbing, head towards its center. The cylindrical body (60) is provided in the central portion, and the cylindrical body (60) is provided with a large number of holes (61) (61) in a certain range below the set water level. The heated water flows into the cylindrical body (60) through these holes (61) (61) and descends, and the outlet of this cylindrical body (60).
It flows out from (62). This outlet (62) is the processing tank (1a)
Since it is located near the top of the plug (V) that closes the lower end of
The heated water flowing out from the outlet (62) reaches the lower end portion of the main body (110) and the reduced diameter portion (13) below the main body (110) where the temperature hardly rises due to the short cycle of convection. Therefore, the temperature of the entire storage area is easily made uniform, and the pasta is boiled uniformly.

Further, since the holes (61) (61) are provided in a certain range below the set water level, a large inflow range of the heated water to the cylindrical body (60) is secured, and this cylindrical body (60) is secured. The heated water surely flows into the body (60). Furthermore, in this embodiment, the total opening area of the holes (61) (61) is defined as
It is set larger than the opening area of (62). As a result, the flow rate of the heated water flowing downward from the outlet (62) tends to increase, and the heated water can be easily supplied downward. In this embodiment, the outlet (62)
Are opposed to the plug (V), the heated water flowing out from the outlet (62) hits the plug (V) and the heated water turbulently flows in the reduced diameter portion (13). It tends to be in a state. Therefore, the temperature equalizing effect described above is further improved.

When the set time (for example, 150 seconds to 200 seconds) elapses after the temperature is raised to the high temperature side set temperature (130 ° C.), the pasta in the processing tank (1a) is boiled up. After that, the discharge port (15) is opened and the pasta in the treatment tank (1a) is taken out together with the hot water. After that, by repeating the series of operations described above, the noodle boiling process is continuously executed.

In this embodiment, the treatment tank (1a) is a cylindrical body (11).
Since the lower end of the body portion of the noodle is closed by the plug (V) of the second ball valve (B ₂ ), the pasta and hot water after the noodle boiling process are discharged in a short time. Therefore, it is possible to smoothly move to the next noodle boil treatment step. In the above embodiment, the processing tank (1a) is formed by closing the lower end of the tubular body (11) with the plug body (V) of the second ball valve (B ₂ ), but the present invention is not limited to this. Not a thing.
For example, the processing tank (1a) may be formed by a bottomed cylinder.

Further, in the above embodiment, the heating means (2) is the electromagnetic heating coil (2a) wound around the body of the processing tank (1a), but the present invention is not limited to this. For example, a heater (2b) wound around the body may be used. Further, in the above-mentioned embodiment, the inlet of the guide tube (6) is the holes (61) (61), but as shown in FIG.
The upper end of (6) may be enlarged in diameter upward, and the upper end opening (63) may serve as the inflow port. Further, the outlet of the guide tube (6) is not limited to that of the above embodiment. For example,
A plurality of holes (64) (64) may be provided on the peripheral wall of the lower end of the guide tube (6) to use these as the outlet.

The above-mentioned embodiment was carried out on a noodle-boiler, but the invention is not limited to this, and if it is a device for boiling water, it can also be used on a boiler or a kettle. It is possible.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a conventional noodle-boiling device.

FIG. 2 is an explanatory view of a noodle boiler according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a modified example.

[Explanation of symbols]

 (1) ・ ・ ・ Heating tank (1a) ・ ・ ・ Treatment tank (2) ・ ・ ・ Heating means (6) ・ ・ ・ Guide tube (61) ・ ・ ・ Hole (14) ・ ・ ・ Input port (15 ) ・ ・ ・ Outlet (16) ・ ・ ・ Top plate

Claims (5)

[Claims] 1. A bottomed cylindrical heating tank for storing water to be heated.
In a water heater equipped with a heating means (2) on the outer periphery of the body of (1), a heating water reservoir at a substantially central portion of the heating tank (1) is provided with an inlet at the upper end and at the lower end. A water boiling device in which a guide cylinder (6) having an outlet for guiding the descending flow is provided, and the outlet is located below the heating region of the heating means (2). 2. The outlet of the guide tube (6) is a heating tank (1).
The water heater according to claim 1, wherein the water heater is located near the bottom of the. 3. The guide cylinder (6), wherein the inlet is the guide cylinder.
The water heater according to claim 1 or 2, wherein a plurality of holes (61) (61) are formed in the peripheral wall of (6). 4. The water heater according to claim 1, wherein the opening area of the inflow port is set larger than the opening area of the outflow port. 5. A device having a heating means (2) provided on the outer circumference of a cylindrical processing tank (1a) with a bottom for boiling noodles, wherein the processing tank (1a) has a bottom portion. Is provided with an openable / closable outlet (15) for discharging noodles and stored water, and its upper end is closed by a top plate (16) having an openable / closable inlet (14) for inserting noodles. And a guide tube (6) for guiding the descending flow, which has an inlet at the upper end and an outlet at the lower end in the storage portion of the heated water in the substantially central portion of the treatment tank (1a).
A noodle boiler in which the guide tube (6) is connected to the top plate (16) and the outlet is located below the heating area of the heating means (2).