JP3034341U - Radiant heating type gas heater - Google Patents

Abstract

(57) [Abstract] [Problem] When a gas heater for grilling fish or meat is heated from below by radiant heating, oil or the like drips to produce smoke, which is prevented. A gas heater in which a radiant plate in the shape of a gutter is arranged on the flame of a gas burner that produces an upward flame, and the object to be heated placed above the radiant plate is radiantly heated by radiating the radiant plate. Then, both edges of the gutter-shaped radiation plate were bent outward. As a result, the dripping oil or the like is effectively splashed outward from both edges of the radiation plate, and as a result, smoke or ignition does not occur.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a radiant heating type gas heater suitable for baking food such as fish and meat.

[0002]

[Prior art]

 Charcoal grill is preferred for grilled meat and fish because it is appropriately browned and fragrant. When using a gas heater for such grilled dishes, a grill is placed above the gas burner, food is placed on the grill, and the food is grilled by the high temperature gas of the gas flame. There is a method to disperse the hot air of a gas flame by providing a red heating element such as asbestos on the bottom surface and also to use the heat radiation from the asbestos, but in the method of heating with a high temperature gas created by a gas flame, the gas conducts heat. The heat efficiency is poor due to the fact that it does not emit radiant heat, and the oil and the like that drip from the food comes into contact with the gas flame to become smoke, and the flame burns up to contaminate the food with soot. . The method of using asbestos also has a serious problem of smoke and soot. Although there is no problem of smoke in the method of heating the burner above the food, there is a low efficiency of converting the heat of the gas flame into radiant heat, and the food is heated mainly by the hot air in the oven, so it is steamed. I can't get the aroma of grilled food.

Therefore, a radiation heating type gas heater as shown in FIG. 3 has come to be used. In the figure, reference numeral 1 denotes a burner, which is a straight tube and has flame holes 2 arranged in a row on the upper side to form a flame F upward. A semi-cylindrical radiation plate 3 is arranged in a downward gutter shape above each burner. This radiant plate is made of a stainless steel thin plate and is designed to be red-heated by the flame F. A food 5 to be heated is placed above the radiation plate 3 via a grill 4.

[0004]

[Problems to be solved by the device]

 In the gas heater described above, part of the heat generated by the gas flame is converted into heat rays by the radiant plate, so the same effect as charcoal-grilling can be obtained, and the oil and drips dripping from the food to be heated fall onto the radiant plate. However, since the radiant plate is glowing red, the rapid evaporation of water and oil causes the radiant plate to roll down in the form of droplets until it adheres to the radiant plate, but some of these droplets radiate. Surface tension may be retained at the lower edges of both sides of the plate, and the retained droplets may pass through the two side edges of the radiant plate and come into contact with the rising heat of a gas flame to become smoke, or It ignites and raises the flame, producing soot. In other words, although the above-mentioned radiant heating type gas heater is suitable for making grilled foods, there still remain problems such as smoke generation and food contamination due to ignition of oil. The present invention seeks to solve this problem.

[0005]

[Means for Solving the Problems]

 A radiant plate in the shape of a gutter is placed above the gas burner to cover the gas flame, and the radiant plate heats the radiant plate above the radiant plate by causing the radiant plate to glow red by the gas flame. In the gas heater described above, the lower side edges of the radiation plate were bent outward. In this way, when oil or the like from the food that has dropped onto the radiant plate that has been heated by red heat rolls down on the radiant plate as described above, the edge of the radiant plate is directed diagonally downward, so it does not bounce off diagonally downward. Then, the gas flame rising around the edge of the radiant plate turns it into smoke, or there is no choice but to ignite, and the generation of smoke and flame disappears.

It is an experimental result that, when the edge of the radiating plate is bent outward, smoke and ignition due to oil or the like dripping from food is prevented, and the reason for this is unclear, but oil It is also considered that the droplets are more likely to move away from the gas flame faster than they are dropped vertically from the edge of the radiation plate, or when the edge of the radiation plate is bent outward, as shown in Fig. 1B. It is also considered that the droplets, which are retained by the surface edge on the edge of the plate by the surface tension, are retained on the sharp edge and are easily separated from the edge when the edge of the radiation plate in FIG. 2C is downward.

[0007]

[Embodiment of the invention]

 FIG. 1A shows an example of an embodiment of the present invention. Reference numeral 1 is a burner body in which flame holes 2 are arranged in an upward direction, and a radiation plate 3 is arranged above the flame holes 2. The radiation plate 3 is a bent thin plate of heat-resistant metal such as 18-8 stainless, has a downward gutter shape, and both side edges are curved outward as shown in the figure. 4 is a grill, on which food 5 such as fish to be heated is placed. A water bowl (not shown) is placed below the burner 1 so as to receive oil, juice, and dripping from food. When the liquid droplet D dripping from the food onto the radiation plate 3 touches the radiation plate 3, the radiation plate is red-heated, so that the contacted portion is rapidly vaporized and the liquid droplet can be prevented from adhering to the radiation plate. , The liquid droplets fall so as to roll on the radiation plate, and bounce down obliquely downward from the outer curved edge 31 of the radiation plate.

FIG. 2 shows the entire gas heater of the above-described embodiment. Four straight tubular burner bodies 1 are attached in parallel to a box-shaped outer frame 6 which is square and has an open top. These burner bodies constitute a Bunsen type burner, and two pairs of burners are paired so that the heat can be blinked and the power can be adjusted individually by the heat power control knobs 71 and 72. Reference numeral 8 denotes a top plate, which is a frame-shaped member placed on the upper surface of the outer frame 6. Between the inner surfaces on both sides, four radiation plates 3 are arranged in parallel with the burner body 1 at an appropriate height from the burner body. It is installed so that it is located at. The grill 4 is placed on the top plate. The grill 4 is detachable, and instead of the grill, a grill skewer can be hung between the standing edges 81 on the front and rear sides of the top plate 8.

The lower portions on both front and rear sides of the outer frame 6 are open so that secondary air at the time of gas combustion in the burner is supplied, and the water bowl 9 can be put in and taken out from this opening. I am doing it. Reference numeral 62 denotes a ventilation hole formed on the right side surface of the outer frame, which serves as an intake port for cooling the primary air to the burner body 1 and the burner mechanism portion such as the venturi portion, the gas distribution pipe, and the cock. That is, at the right end of the burner body, there is the above-mentioned burner mechanism section in the space between the partition plate (not visible in the figure) parallel to the right side surface of the outer frame 8 and the right side surface. Is supplied.

In the above-mentioned example, the burner is a parallel straight tube type, but it goes without saying that the present invention can be implemented by using a ring-shaped burner.

[0011]

[Effect of the invention]

 According to the present invention, as described above, the heat generation of the gas flame is changed to the heating wire to heat the object to be heated, so that the thermal efficiency is increased, and the same heating state as charcoal grilling is obtained, and only a good taste can be obtained. Moreover, since smoke and ignition caused by the liquid dripped from the food are prevented, the problem of odor and the problem of food contamination due to soot are eliminated, and it is more effective than actual charcoal grilling.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an embodiment of the present invention.

FIG. 2 is an overall perspective view of the above embodiment

FIG. 3 is a perspective view of a main part of a conventional radiant heating type gas heater.

[Explanation of symbols]

 1 Burner Main Body 2 Flame Hole 3 Radiant Plate 4 Grill Net 5 Heated Object 6 Outer Frame 8 Top Plate 9 Water Bowl

Claims (1)

[Utility model registration claims] 1. A radiant plate having a shape of a gutter is arranged above the gas burner so as to cover the gas flame, and the radiant plate is red-heated by the gas flame, and the object to be heated placed above the radiant plate. A radiant heating type gas heater, characterized in that both downward facing edges of the radiating plate are curved outward.