JPH09192013A - Cooling device for steam heated boiler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effect a sanitary and efficient forced cooling of a steam heated boiler. SOLUTION: A switching valve 17 is provided at one end of a steam pipe 18, and when the switching valve 17 is shifted to a position 17b, a city water pipe 19 opens and connects with a steam inlet pipe 4, letting water fill a steaming chamber 3. Also, a cooling chamber 13 is provided around the outer surface of the upper section 1b of a boiler main body 1, and the cooling chamber 13 and the steaming chamber 3 are connected by a connecting pipe 14. Therefore, when a stop valve 15 provided in the connecting pipe 14 is released, the water which has filled the steaming chamber 13 rises through the connecting pipe 14 into the cooling chamber 13 to fill it. Then, the water which overflows the cooling chamber 13 is let to flow through an outlet 16 into a drain ditch by way of a hose.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for a steam heating pot used for commercial cooking such as school lunch, and more particularly to a device for forcibly cooling the steam heating pot after cooking. .

[0002]

2. Description of the Related Art A conventional steam heating pot of this type will be described with reference to FIG. In the figure, reference numeral 1 denotes a hook main body, and the hook main body 1
The upper edge of the steam chamber outer plate 2 is welded over the entire circumference in the vicinity of the middle stage of the outer peripheral surface of the steam chamber, and the steam chamber outer plate 2 and the pot main body 1 are spaced apart from each other from the middle stage to the bottom to seal the The formed space, that is, the steam chamber 3 is formed.

A steam introducing pipe 4 and a steam discharging pipe 5 are provided in the steam chamber 3. These steam introduction pipes 4
The steam discharge pipe 5 and the steam discharge pipe 5 extend to the outside through the hollow shaft portion 7 of one of the rotary shafts 6 and 6 provided on the left and right sides of the steam chamber 3, respectively.

During heating and cooking, the steam of the boiler is filled into the steam chamber 3 from the steam introducing pipe 4. As a result, the portion 1a from the pot bottom to the middle stage of the pot main body 1 receives the heat quantity of steam and is directly heated. The upper portion 1b of the pot body 1 is indirectly heated by heat conduction. In this way, the reason why the steam chamber 3 is provided downward from the vicinity of the middle stage of the pot body 1 rather than from the pot edge is that the pot body upper stage portion 1
This is because b is directly heated by the steam of the boiler so that the cooked food does not burn.

Further, the steam having passed the heat quantity is led out of the steam discharge pipe 5 to the outside of the steam chamber 3, and is delivered to another steam heating pot or returned to the boiler.

[0006]

The steam heating pot is mainly used for cooking, but it is also used for low-temperature cooking such as stirring salad and cooling distorted noodles. Then, the steam heating pot used for cooking may be forcibly cooled and used for low temperature cooking. In such a case, conventionally, tap water is poured into the pot, or the pot is turned upside down and tap water is poured on the outer plate of the steam chamber for forced cooling.

However, if tap water is filled in the pot, there is a risk that various bacteria contained in the tap water adhere to the pot and cause food poisoning. Also, if the pot is turned upside down and tap water is poured on the outer wall of the steam chamber, the surrounding area will be flooded, which is also unfavorable for hygiene management.

Therefore, there arises a technical problem to be solved in order to sanitarily and efficiently forcibly cool the steam heating pot, and an object of the present invention is to solve the problem.

[0009]

DISCLOSURE OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems, and a steam introducing pipe and a steam are provided in a steam chamber which is circumferentially provided from the middle stage to the bottom of the outer peripheral surface of the pot main body. In a steam heating pot having a discharge pipe, a cooling water introducing pipe is joined to a base of the steam introducing pipe via a valve, and a cooling chamber is provided around the outer peripheral surface of the pot main body. It is intended to provide a cooling device for a steam heating pot in which a cooling chamber and the steam chamber are communicated with each other through a valve, and a drain port is provided in the cooling chamber.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention.
Will be described in detail. For convenience of explanation, the same components as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.

In the figure, reference numeral 11 is a steam heating pot, and the upper edge of the cooling chamber outer plate 12 is welded over the entire circumference to the pot edge of the pot body 1 of the steam heating pot 11. The lower edge of the cooling chamber outer plate 12 is welded over the entire circumference to the outer peripheral surface of the pot main body 1 slightly above the upper edge of the steam chamber outer plate 2. The inner peripheral surface of the cooling chamber outer plate 12 and the outer peripheral surface of the shuttle main body 1 are spaced apart from each other by a predetermined distance, so that the cooling chamber 13 is provided around the outer peripheral surface of the upper end 1b of the shuttle main body.

A connecting pipe 1 is provided on one side of the cooling chamber 13.
The upper end of 4 is joined, and the lower end of the connecting pipe 14 is joined to the steam chamber 3. A stop valve 15 is provided in the middle of the connecting pipe 14. Further, a drain port 16 is provided on the other side of the cooling chamber 13 and near the hook edge.

Since the steam chamber 3 is filled with steam and becomes high in pressure, the steam chamber outer plate 2 is formed of a thick stainless plate or the like, but the cooling chamber 13 is, as will be described later.
Since it is filled with tap water for cooling, the cooling chamber outer plate 12 does not need to be thick like the steam chamber outer plate 2, and is formed of a thin stainless plate or the like.

Further, the shaft center hollow portion 7 of the rotary shaft 6 on the right side in the figure.
A two-position three-port switching valve 17 is provided at the base end of the steam introducing pipe 4 extending from the steam introducing pipe 4, and a steam pipe 18 is connected to one of the two inlet ports of the switching valve 17. A water supply pipe 19 is connected to the other as a cooling water introduction pipe. The steam pipe 18 is connected to the check valve 20 and the stop valve 2.
1 to a boiler (not shown). Also,
Similarly, the check valve 22 and the stop valve 23 are also provided on the water supply pipe 19.
Is interposed.

When the steam heating pot 11 is used for heating and cooking, the steam extending from the stop valve 15 and the stop valve 23 and the hollow center 7 of the rotary shaft 6 on the left side in the figure. The stop valve 24 provided at the base of the discharge pipe 5 is closed, and the drain cock (not shown) provided at the drain pipe 26 at the lower end of the drain well 25 hanging at the bottom of the steam chamber 3 is opened. Then, after confirming whether the switching valve 17 is at the position 17a for opening the steam pipe 18, the stop valve 21 is opened.

As a result, the steam of the boiler is charged into the steam chamber 3 through the steam pipe 18 and the steam introduction pipe 4, but since the surface temperature of the pot main body 1 and the steam chamber outer plate 2 is low at the beginning of the filling, the steam is not generated. Condensation collects in the drain well 25 and is drained from the drain pipe 26. When the kettle body 1 and the steam chamber outer plate 2 are heated to prevent dew condensation, steam spouts from the drain pipe 26. At that stage, the stop valve 24 is opened and the drain cock is closed. When the cooking is finished, the stop valve 21 is closed.

When the steam heating pot 11 is used for low temperature cooking without waiting for the natural cooling of the steam heating pot 11 after cooking, the steam heating pot 11 is forcibly cooled. When this forced cooling is performed, the stop valve 24 and the drain cock are closed. Then, the switching valve 17 is switched to the position 17b where the water pipe 19 is opened, and the stop valve 1
5 and the stop valve 23 are opened.

As a result, the tap water for cooling is guided by the steam introducing pipe 4 to fill the steam chamber 3, and the portion 1a from the bottom to the middle stage of the pot main body 1 which has been highly heated by the steam of the boiler is cooled. It Then, when the steam chamber 3 is filled with tap water, the tap water moves up the connection pipe 14 and the cooling chamber 1
Sent to 3. The tap water filled in the cooling chamber 13 removes the amount of heat from the heat conduction that has heated the upper portion 1b of the pot main body.

The tap water overflowing from the cooling chamber 13 is discharged from the drainage port 16. A hose (not shown) is connected to the drainage port 16 to guide the discharged water to a drainage groove and discharge it.

[0020] In this way, forcibly cooling the pot body 1 in a hygienic and efficient manner without adhering various bacteria inside the pot (inside surface of the pot body 1) and without flooding the surrounding area. You can

Further, since the entire pot main body 1 is cooled, for example, assuming that the cooling chamber 13 is not provided, that is, only the steam chamber 3 is filled with tap water and the portion from the bottom to the middle stage of the pot main body 1 is filled. Only 1a is cooled and the upper part 1b of the pot main body is cooled.
The food is much safer than when it is left warm. That is, after forced cooling, low-temperature cooking such as stirring of salad is performed, but at this time, if heat still remains in the upper part 1b of the pot main body, the low-temperature cooking product such as salad may be heated and fermented. Because it will be higher.

The present invention can be variously modified without departing from the spirit of the present invention, and it goes without saying that the present invention extends to the modified ones.

[0023]

As described above, according to the present invention, a cooling water introducing pipe such as a water supply pipe is formed at the base of the steam introducing pipe through a valve. Therefore, when the valve is switched to open the cooling water introducing pipe, the cooling water is guided by the steam introducing pipe to fill the steam chamber, thereby cooling the portion from the bottom to the middle stage of the pot main body. It

Further, a cooling chamber is provided around the outer peripheral surface of the pot main body, and the cooling chamber and the steam chamber are communicated with each other through a valve. Therefore, the cooling is performed by opening the valve. When the steam chamber is filled with water, the cooling water is sent into the cooling chamber, whereby the upper part of the pot main body is also cooled.

As described above, in the cooling device for the steam heating pot according to the present invention, the portion of the outer peripheral surface of the pot main body which is directly heated by the steam of the boiler is indirectly heated by heat conduction by the simple operation of the valve. The portion to be cooled is also uniformly and quickly cooled. Therefore, the whole of the hook main body is forcibly cooled easily and extremely efficiently.

As in the prior art, there is no risk of adhering bacteria in the pot, and the water overflowing from the drainage port of the cooling chamber is led to the drainage channel by a hose or the like so that the surroundings are submerged. Since it can be prevented, it is also excellent in hygiene.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing an embodiment of the present invention, in which a hook portion is shown in a sectional view of a substance, and a piping system outside thereof is shown in a symbolic circuit diagram.

FIG. 2 is a sectional view showing a conventional example.

[Explanation of symbols]

 1 pot main body 1a part from the middle to bottom of the pot main body 1b upper part of the pot main body 2 steam chamber outer plate 3 steam chamber 4 steam inlet pipe 5 steam discharge pipe 11 steam heating pot 12 cooling chamber outer plate 13 cooling chamber 14 connection pipe 15, 21,23,24 Stop valve 16 Drainage port 17 Switching valve 18 Steam pipe 19 Water supply pipe 20,22 Check valve

Claims (1)

[Claims] 1. In a steam heating pot in which a steam introducing pipe and a steam discharging pipe are provided in a steam chamber which is provided from a middle portion of the outer peripheral surface of the pot main body to a bottom portion, a valve is provided at the base of the steam introducing pipe. A cooling water introducing pipe is joined through the cooling water introducing pipe, and a cooling chamber is provided in the upper stage of the outer peripheral surface of the pot main body, and the cooling chamber and the steam chamber are communicated with each other via a valve, A cooling device for a steam heating pot characterized by having a drainage port.