JPH0735903U - Fire bed structure of gas equipment for food heating - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the burning of food and the incomplete combustion of gas, and to provide a fire bed structure for gas appliances with excellent thermal efficiency. [Composition] In a gas appliance for heating food contained in a container by direct fire of a gas burner (27) installed immediately below the container (11) for food, the bottom surface and / or body surface of the container is made of stainless steel. Wall of equipment such as steel plate (1
0), a non-heat storage heat insulating layer (14) such as a ceramic fiber, which is easy to heat and cool, is polymerized and integrated on the inner surface of the equipment main body wall, and the bottom of the container and the gas burner are burned by the flame of the combustion gas. Is separated from the bottom of the container by a certain distance (H) so that the radiant heat transfer from the gas burner to the container is positively reflected without being taken by the heat insulating layer.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a fire bed structure of a gas appliance for heating various foods.

[0002]

[Prior art]

 In conventional gas appliances for heating food, regardless of the type of stationary furnace installed at the cooking place or portable table that can be carried and moved, the gas flame rising from the gas burner It is set to directly hit the bottom surface of pots, flan pans, iron plates, and other food containers.

Moreover, the main body wall of the gas equipment surrounding the bottom surface and the body surface of the food storage container is formed as a heat storage heat insulating layer such as asbestos, which is usually expected to have high thermal efficiency.

[0004]

[Problems to be solved by the device]

 However, in the above-mentioned fire bed structure, since the gas flame directly hits the bottom surface of the container, incomplete combustion is likely to occur, and soot is deposited and deposited early on the bottom surface of the container and inside the gas equipment. It will be.

However, even if this is the case, when the gas burner and the bottom surface of the container are separated far from each other, the radiant heat transfer is deprived by the heat storage heat insulating layer and stored, and acts efficiently on the bottom surface of the container. Instead, the thermal efficiency will become worse and the gas consumption will increase unnecessarily.

[0006] Furthermore, since the flame of gas hits the bottom surface of the container directly, it is easy to burn the food stored in the container, and it is difficult to cool the heat storage heat insulating layer. Automatic mechanical control is also very difficult.

[0007] In particular, for foods that are required to have properties such as bean paste, it is not allowed not only to cause charring, but also to crush the grains. I have no choice but to do.

Further, in the case of a food containing sugar as a raw material, chemically changing the sugar into a reducing sugar is highly necessary for the chemical change, although it determines the deliciousness of the food. The heating temperature cannot be maintained. This is because it will cover and burn the food before it.

Further, although the heat storage heat insulating layer stops the heat of the gas burner, it does not cool down early, so there is a great risk of being burned, and the spilled food is burned on the surface of the gas appliance and is unsightly. It will also be polluted.

[0010]

[Means for Solving the Problems]

 The present invention intends to improve such a problem, and a gas appliance that heats the food stored in the container by the direct fire of a gas burner installed directly below the food storage container in terms of the structure for that purpose, The bottom surface and / or body surface of the container is surrounded by a device body wall such as a stainless steel plate, and the inner surface of the device body wall is easily heated and cooled. A non-heat storage heat insulating layer such as ceramic fiber is polymerized and integrated, and the container is also used. The bottom surface of the gas burner is separated from the gas burner by a certain distance such that the flame of the combustion gas does not hit the bottom surface of the container, and the heat transfer from the gas burner to the container is not taken away by the heat insulating layer. The feature is that it is set to positively reflect.

[0011]

[Action]

 According to the above configuration of the present invention, since the bottom surface of the food storage container received on the device body wall and the heating gas burner are separated from each other by a certain distance, the food in the container is burnt. There is no risk of incomplete combustion of gas.

Even if the gas flame keeps a certain distance so as not to directly hit the bottom surface of the container, the non-heat storage heat insulating layer is polymerized and integrated on the inner surface of the equipment body wall. Unlike the heat storage heat insulating layer made of asbestos, the radiant heat transfer from the gas burner to the container is not absorbed and absorbed, but the radiation between the gas burner and the container is positively reflected by the heat insulating layer. It is possible to accelerate the heat transfer by means of this, and in that sense, it is possible to obtain excellent thermal efficiency and also to prevent the undesired consumption of gas.

Further, since the heat insulation layer lined on the equipment body wall has a non-heat storage property that is easy to heat and cool, when the heating power of the gas burner is stopped, the equipment body wall is also cooled rapidly. The surface of the main body wall can be cleaned beautifully without being burned, and it can be kept as new as long as it is.

[0014]

【Example】

 The present invention will be described in detail below with reference to the drawings. Fig. 1 shows a fire bed structure of a stationary fixed gas appliance according to an application example of the present invention. That is, it is formed from a stainless steel plate or other metal plate into an inverted U-shaped cross section that surrounds the body surface and the bottom surface of the food storage container (11).

Reference numeral (12) is a food storage container receiving port formed in the central portion of the upper surface of the device body wall (10). Particularly, as shown in FIG. It is preferable to serve as a spillage prevention cover (13) for preventing the simmering of food from flowing down from the gap between the main body wall (10) and the container (11) by continuously bending and raising it from (1).

In the illustrated embodiment, the food storage container (11) is an arc-shaped bowl pot having a bottom surface. For example, the device body wall (10) is formed into a cylindrical shape or a rectangular tube shape. As the food storage container (11) that can be received, a flat bottom iron plate or the like may be adopted.

(14) is a non-heat storage heat insulating layer which is polymerized and integrated on the inner surface of the device body wall (10) and is easy to heat and cool, and is preferably composed mainly of alumina and silica, and is melted at a high temperature to form a fiber. It consists of a smashed ceramic fiber.

Although this may be integrated with the device body wall (10) as a thick layer as a whole, in the illustrated embodiment, the inner heat insulating layer (14a) and the outer heat insulating layer (14b) are used. 2) and an exhaust jacket (15) is defined between the inside and the outside.

In that case, the outer heat insulating layer (14b) is made relatively soft and thick, and is processed into a band shape from the above ceramic fiber, and then, in the rolled and bent state, the above device body wall is formed. It is attached and fixed to the inner surface of (10).

On the other hand, the inner heat-insulating layer (14a) is formed as a comparatively hard and thin-walled fired body as shown in FIG. 3 by adding a binder to the ceramic fiber as well, and vacuum dehydrating the formed body, followed by a drying furnace. As shown in FIG. 1, the outer heat insulating layer (14b) is fitted and integrated with the inner surface of the outer heat insulating layer (14b) in a state of keeping a constant exhaust jacket (15).

Further, the inner heat insulating layer (14a) is shaped into a conical shape with a lower constriction corresponding to the bottom surface of the food storage container (11), and the radiant heat from a gas burner described later is transferred to the cone. The surface (16) directs and directs the reflection toward the bottom surface of the container (11) to further improve the thermal efficiency of the gas.

Reference numeral (17) denotes a plurality of exhaust holes perforated substantially in the upper half of the inner heat insulating layer (14a) so that the exhaust jacket (15) can be smoothly exhausted. Has become. (18) is a sleeve receiving notch similarly provided in the conical surface (16) of the inner heat insulating layer (14a), and (19) is positioned corresponding to this, so that the device body wall (10) and the outer heat insulating layer (14b) ) Is a sleeve receiving port formed by penetrating to the), and (20) is a viewing window sleeve inserted and fixed from the sleeve receiving port (19) to the receiving cutout (18), which is also formed into a cylindrical shape from the ceramic fiber. Has been done.

(21) is an installation stand for the device body wall (10), and (22) is also a bottom for lifting, to a mounting flange (23) projecting inward from the body surface of the body wall (10). , The screw bottom (24) and the like, but the central portion of the bottom (22) of the fried food is opened as a gas burner receiving port (25).

Further, (26) is a non-heat storage heat insulating mat which is attached and integrated with the inner surface (upper surface) of the fried bottom (22), and is made of a ceramic fiber like the outer heat insulating layer (14b). Together with the inner and outer heat insulating layers (14a) and (14b), the exhaust jacket (15) is airtightly surrounded.

(27) is a gas burner installed in the gas burner receiving port (25), and it goes without saying that it faces the center of the bottom surface of the food storage container (11). The gas burner (27) and the gas burner (27) are separated from each other by a certain distance (H) so that the flame of gas does not directly hit the bottom surface of the container (11).

For that constant distance (H), it is preferable to size it about 2-3 times the height of the flame. That is, the temperature at the tip of the flame is usually about 1600 ° C, and in the past, the distance between the tip and the bottom surface of the container (11) was about 10 mm, and the bottom surface was substantially hit by a gas flame. In contrast, in the case of the present invention, the interval is set to about 80 mm, and the relation is set so that the bottom surface of the container (11) can be heated to about 700 to 1000 ° C. In addition, the primary air of the gas burner (27) is introduced from below the above-mentioned bottom (22).

According to such a configuration, it is possible to prevent the burning of the heated food and the incomplete combustion of the gas, and even when the food body wall (10) is separated by a certain distance (H). Since the heat insulation layer (14) integrated and polymerized on the inner surface has a non-heat storage property that is easy to heat and cool, the heat insulation layer (14) deprives the radiant heat transfer from the gas burner (27) to the container (11). It does not absorb, but rather has a reflective action to positively direct it to the container (11), and its high thermal efficiency can be obtained.

Reference numeral (28) is a gas supply conduit to the gas burner (27), and an opening / closing cock (29), a flow rate adjusting valve (30) and the like are inserted in the middle thereof. The flow rate adjusting valve (30) can be remotely controlled from the outside, and in the case where it is omitted, an opening degree adjusting scale plate (not shown) is additionally attached to the opening / closing cock (29). Determine that the heat power can be adjusted accurately.

Reference numeral (31) is an exhaust pipe line connected and fixed in a state of being inserted into the device body wall (10) and the outer heat insulating layer (14b) so as to communicate with the exhaust jacket (15). And other metal plates, a part of which is continuously erected as a chimney (32).

On the inner surface of the exhaust pipe line (31) including the chimney (32), a non-heat storage heat insulating layer (33) made of the ceramic fiber or the like is polymerized by means of adhesion or the like. It is integrated. Therefore, when the heating power of the gas burner (27) is stopped, the exhaust pipe line (31) will be cooled quickly, and as a result, the surface of the exhaust pipe line (31) will be beautifully cleaned without being burned. You can

In the illustrated embodiment, a closed fire bed structure that also includes an exhaust pipe (31) is provided so as to promote the complete combustion of gas in combination with securing the above-mentioned constant distance (H). In that sense, it is impossible to ignite the gas burner (27) by inserting an ignition rod from the outside. Therefore, the ignition is performed by a remote control button (not shown). There is.

It is to be noted that, although the fire bed structure of the stationary fixed gas appliance embodied as a furnace in the illustrated embodiment is shown, the fire pipe structure of the portable gas appliance that can move the cooking place is shown as its exhaust pipe line. The present invention can be widely applied to an open type having no (31).

[0033]

[Effect of device]

 As described above, in the present invention, the gas burner (27) installed directly below the food storage container (11) is heated directly by the gas burner (27) to heat the food stored in the container (11). The bottom surface and / or the body surface of (11) is surrounded by a device body wall (10) such as a stainless steel plate, and the inner surface of the device body wall (10) is a non-heat storage heat insulating layer (14) such as a ceramic fiber that is easy to heat and cool. ) Are integrated with each other, and the bottom surface of the container (11) and the gas burner (27) are separated by a constant distance (H) such that the flame of the combustion gas does not hit the bottom surface of the container (11). The radiant heat transfer from the gas burner (27) to the container (11) is designed to be positively reflected without being taken by the heat insulating layer (14). There is an effect that can completely solve the problem.

That is, according to the above configuration of the present invention, the bottom surface of the food container (11) received by the device body wall (10) and the heating gas burner (27) are fixed to each other. Since they are separated by the distance (H), there is no risk of burning food in the container (11) or causing incomplete combustion of gas.

Even if the gas flame keeps a certain distance (H) where it does not directly hit the bottom surface of the container (11), the inner surface of the device body wall (10) has a non-heat storage heat insulating material such as ceramic fiber. Since the layer (14) is polymerized and integrated, unlike the conventional heat storage heat insulating layer made of asbestos, it does not absorb and absorb the radiative heat transfer from the gas burner (27) to the container (11) and absorb it. It is possible to accelerate the heat transfer by radiation between the gas burner (27) and the container (11) as if it is positively reflected by the heat insulating layer (14), and in that sense, it is possible to obtain excellent thermal efficiency. It will also prevent the wasteful consumption of gas.

Moreover, since the heat insulating layer (14) lined with the device body wall (10) has a non-heat storage property that is easy to heat and cool, when the heat power of the gas burner (27) is stopped, the device body wall is stopped. (14) will also be cooled quickly, and as a result, it will not be burned, the surface of its body wall (10) can be cleaned cleanly, and it can be kept as new as it is.

In particular, if the configuration of claim 2 is adopted, the non-heat storage heat insulating layer (14) is double-structured from the inner and outer heat insulating layers (14a) (14b), and the non-heat insulating heat insulating layers (14a) and (14b) are arranged between them. The non-heat storage heat-insulating layer (33) is also polymerized and integrated on the inner surface of the exhaust pipe line (31) derived from the exhaust jacket (15) formed in the above, so that the above effect can be further enhanced. You can

According to the third aspect of the invention, the non-heat storage inner heat insulating layer (14a) is shaped into a conical shape or other corresponding shape conforming to the bottom surface of the food storage container (11). Therefore, the radiation heat reflected by the heat insulation layer (14) can be directed to the bottom surface of the container (11) without loss, and the amount of radiation heat from the gas burner (27) can be used for cooking food. There is an effect that it can be used more efficiently.

Further, according to the structure of claim 4, the spillage prevention cover (13) continuously bent and bent from the device body wall (10) allows the spillage from the food storage container (11). This can be easily prevented, and the main body wall (10) is lined with the non-heat storage heat insulating layer (14), which makes it easy to cool, and the surface can be quickly cleaned. It is not ugly and does not burn and stain.

[Brief description of drawings]

FIG. 1 is a side view showing a fire bed structure of a stationary fixed gas appliance according to an application example of the present invention.

FIG. 2 is a partially enlarged sectional view showing a modified example of FIG.

FIG. 3 is a half-cutaway cross-sectional view showing an extracted inner heat insulating layer.

[Explanation of symbols]

 (10) -Equipment body wall (11) -Food storage container (13) -Boil spill prevention cover (14) -Non-heat storage heat insulating layer (14a) -Inner heat insulating layer (14b) -Outside heat insulating layer (15) -Exhaust gas Jacket (17), exhaust hole (27), gas burner (31), exhaust pipe line (33), non-heat storage heat insulating layer (H), fixed distance

Claims (4)

[Scope of utility model registration request] 1. A container (1) is provided by direct flame of a gas burner (27) installed directly below the food container (11).
In a gas appliance for heating food stored in 1), the bottom surface and / or the body surface of the container (11) is surrounded by a device body wall (10) such as a stainless steel plate, and the inner surface of the device body wall (10) is surrounded. A heat-insulating heat insulating layer (14) such as a ceramic fiber that is easy to heat and cool is polymerized and integrated, and the bottom surface of the container (11) and the gas burner (27) are
The combustion gas flame is separated from the bottom surface of the container (11) by a certain distance (H) so that radiant heat transfer from the gas burner (27) to the container (11) is performed by the heat insulating layer (14). Without taking
A fire bed structure for gas appliances for heating foods, characterized by being designed to positively reflect. 2. A non-heat storage heat insulating layer (14) is replaced with an inner heat insulating layer (1).
4a) and an outer heat insulating layer (14b) as a double structure, an exhaust jacket (15) is interposed between the inside and the outside, and a plurality of exhaust holes (17) communicating with the exhaust jacket (15) are provided as described above. The openings are distributed in the inner heat insulating layer (14a), and a non-heat storage heat insulating layer (33) such as a ceramic fiber is polymerized and integrated on the inner surface of the exhaust pipe (31) which is also led out from the exhaust jacket (15). The fire bed structure of the gas appliance for heating food according to claim 1. 3. A non-heat storage heat insulating layer (14) has a double structure consisting of a thin inner heat insulating layer (14a) and a thick outer heat insulating layer (14b), and has an exhaust jacket (1) between the inside and the outside.
5) through which the plurality of exhaust holes (17) communicating with the exhaust jacket (15) are distributed in the inner heat insulating layer (14a), and the inner heat insulating layer (14a) is placed in the food storage container (11). ) Has a shape corresponding to that of the bottom surface.
The fire bed structure of the described gas equipment for heating food. 4. A spillage prevention cover (13) for receiving an opening edge of a food storage container (11) is attached to a device body wall (1).
0) is continuously bent and raised from 0).
The fire bed structure of the described gas equipment for heating food.