JPS5913852B2 - Cooking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooking device for producing fried foods using a hot liquid heated with oil or the like, and is particularly capable of improving heating efficiency and preventing deterioration of the cooking liquid, as well as producing fresh food at the same time as cooking. The present invention relates to a cooking device that can automatically supply cooking liquid.

In the production of fried foods using conventional pots, only the bottom of the pot is heated, and not all of the combustion gas is involved in heating the cooking liquid in the pot, resulting in extremely poor thermal efficiency.

There are also fryers with heat transfer tubes installed horizontally inside the cooking tank, but the firebox is placed outside the cooking tank and the combustion gas passing through the heat transfer tubes is subject to fluid frictional resistance. Due to this, thermal efficiency cannot be increased that much.

In such conventional cooking devices, the surface of the cooking liquid is in direct contact with the air, which has the disadvantage that cooking liquids such as oil are oxidized and deteriorated, and there is also a large loss of heat from the surface of the cooking liquid. Furthermore, in the conventional method, when the cooking liquid deteriorates, the cooking operation must be temporarily stopped and the liquid in the cooking tank must be completely replaced, which also poses a problem in terms of work efficiency.

The present invention has been made in view of the above-mentioned problems and to effectively solve the problems.The purpose of the present invention is to improve heat transfer efficiency, prevent oxidation and deterioration of cooking liquid, and produce fresh cooking liquid. To provide a cooking device that can automatically supply food even during cooking operations.

In order to achieve such an object, the present invention provides a firebox in the lower part of a cooking tank filled with cooking liquid, a heat transfer tube extending upward from the firebox along the inner wall of the cooking tank, and a heat transfer tube extending upward from the firebox along the inner wall of the cooking tank. An opening for ejecting combustion gas in a horizontal direction is formed at the tip of the heat tube that protrudes above the level of the cooking liquid, and a liquid supply is provided adjacent to the cooking tank to adjust and maintain the level of the cooking liquid at a predetermined height. The gist is that the equipment was installed.

An example of the implementation of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a longitudinal sectional side view of the cooking device according to the present invention, and FIG.
The figure is a partially cutaway plan view of the cooking device.

In the figure, 1 is a cooking device main body, and a cooking tank 2 with an open top end is provided on the top of this main body 1.

This cooking tank 2 has front and rear side walls and a left side wall in the figure fixed to the main body 1 via a heat insulating material 3, and a space S is formed between the right side wall and the main body 1.

And the bottom wall 2a of the cooking tank 2 slopes towards one side? and an opening 4 is formed at the bottom thereof, and this opening 4
A firebox 6 equipped with a burner 5 is fitted therein so that the entire firebox 6 faces into the cooking tank 2.

A heat transfer tube 7 that has a slight gap with the inner wall of the cooking tank 2 and extends upward along the inner wall is integrally attached to one side of the firebox 6. An opening 8 is formed in the protruding tip 7a to eject combustion gas horizontally using buoyancy energy.

Further, in the middle part of the cooking tank 2, a large number of holes are bored and seven partition plates 9 are installed horizontally to prevent the resurfacing of sedimentary solids in the cooking liquid.

A settling chamber 10 is provided laterally protruding from the lower part of the cooking tank 2 in which the firebox 6 is disposed.

This settling chamber 10 is continuous with the cooking tank 2, and a large number of rectifying plates 12 arranged diagonally and in parallel are installed on the upper part of the settling chamber 10 to quickly remove solids such as fried scum led into the settling chamber 10. The liquid is sent to the lower part of the precipitation chamber 10.

Furthermore, a sediment removal valve 13 which also serves as an oil wetting valve is provided at the bottom of the precipitation chamber 10.

As shown in FIGS. 3 and 4, this removal valve 13 has a plug body 15 that rotates within a cylindrical valve chamber 14, and this plug body 15 has a sediment storage chamber having an opening in a part thereof. 15b, and the valve chamber 14 is provided with an inflow hole 14a in the upper part thereof, a sediment removal hole 14b in the lower part, and a filtration hole 14c in the side part, corresponding to the rotating circumference of the plug body 15. The precipitate is accommodated inside the opening 15a of 15 facing upward and communicating with the inflow hole 14a, and the inflow hole 14a is closed by rotating the stopper 15 to align the opening 15a with the filter hole 14c. The oil in the storage chamber 15b flows through the filter medium 1 in the filter hole 14c.
6 and then filtered out.

Thereafter, the stopper 15 is turned so that its opening 15a is aligned with the removal hole 14b to allow the precipitate inside to fall.

In the figure, reference numeral 15d denotes an oil drain hole opened in the plug body 15, which is aligned with the opening of an oil wetting cock 14d provided in the valve chamber 14, and the oil is drained by operating the cock 14d.

On the other hand, a liquid supply device 17 is provided above the space S formed between the side wall of the cooking tank 2 and the main body 1.

That is, the liquid supply device 17 includes a liquid supply tank 18 filled with fresh cooking liquid, and a communication passage 19 that connects this liquid supply tank 18 and the cooking tank 2. A communication passage 1 is arranged at the lower end of the liquid supply tank 18.
A valve chamber 21 connected to the valve chamber 9 is provided, and the tip of the needle valve 22 built in the valve chamber 21 is connected to the liquid supply tank 18.
20, facing the hole drilled in the lower end of the float 20.
are connected by an axis.

The communication passage 19 is a passage 2 formed on the side wall of the cooking tank 2.
3, and the upper part of this passage 23 is used as a return liquid passage,
The lower part faces the upper part of the precipitation chamber 10.

Further, an adjustment dial 24 is attached to the top surface of the liquid supply tank 18, and by turning the adjustment dial 24, the vertical position of the float 20 can be changed, and the buoyancy that pulls the needle valve 22 upward can be adjusted. ing.

In the cooker configured as described above, when the burner 5 is ignited, the combustion gas generated in the firebox 6 rises inside the heat transfer tube 7 due to its buoyancy and reaches the cooking liquid level from the opening 8 of the tip 7a. Ejects in parallel.

In addition, the cooking liquid in the cooking tank 2 is heated to cause convection, and by this convection, sedimentable solids such as fried scum are guided into the settling chamber 10 and removed by the sediment removal valve 13 provided at the bottom of the settling chamber 10. be done.

'Then, when the cooking liquid is removed by adhering to food, etc., or is discharged from the removal valve 13, and the cooking liquid decreases, the pressure acting on the lower surface of the needle valve 22 decreases, and this 22 is pulled downward. When the force becomes larger than the buoyancy of the float 20, the cooking liquid flows into the cooking tank 2 through the hole formed in the lower end surface of the liquid supply tank 18, and the liquid level returns to its original height.

Note that the cooking liquid flowing into the cooking tank 2 at this time is in the settling chamber 10.
Since it flows from the top of the tank, the solids are encouraged to settle downward.

As is clear from the above description, according to the present invention, a firebox is provided at the bottom of the cooking tank filled with cooking liquid, and a heat transfer tube is extended from the firebox along the inner wall of the cooking tank. It is possible to increase the thermal efficiency by increasing the thermal area.

Furthermore, the tip of the heat transfer tube is made to protrude above the level of the cooking liquid, and an opening is provided at the tip so that combustion gas consisting mainly of nitrogen and carbon dioxide gas is ejected onto the surface of the cooking liquid using its buoyant energy. This prevents the surface of the cooking liquid from being oxidized, and furthermore prevents heat loss from the surface, and at the same time heats the surface of the cooking liquid as well, further improving thermal efficiency.

Furthermore, since a device is attached that can automatically supply fresh cooking liquid according to the liquid level height of the cooking liquid, there are many advantages such as dramatically improving work efficiency.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and FIG. 1 is a longitudinal sectional side view of the cooking device according to the invention, FIG. 2 is a partially cutaway plan view of the cooking device, and FIG. 4 is an enlarged vertical sectional view of the sediment removal valve, and FIG. 4 is a sectional view taken along the line 1-1 in FIG. 3. 2...Cooking tank, 6...Firebox, 1...
... Heat exchanger tube, 7a... Tip of heat exchanger tube, 8.
...Opening, 17...Liquid supply device.

Claims (1)

[Claims] 1. A firebox located at the bottom of the cooking tank that fills the cooking liquid, and a firebox that extends from the firebox along the inner wall of the cooking tank and whose tip protrudes above the liquid level in the cooking tank. A heat exchanger tube set in a horizontal direction, an opening formed at the tip of the heat exchanger tube and ejecting combustion gas approximately parallel to the liquid level in the cooking tank, and a heat exchanger tube configured to maintain a constant height of the liquid level in the cooking tank. A cooking device consisting of a liquid supply device installed next to a cooking tank to maintain the cooking temperature.