JP3533853B2 - Heating pot with heating function - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-insulating pot, and more particularly to a heat-insulating pot with a heating function which is excellent in portability and can maintain the contents at a high temperature for a long time even outdoors. is there. 2. Description of the Related Art Conventionally, a heat-insulating pot in which a container body is insulated with glass wool or the like, or a container body constituted by a vacuum insulated double container has been adopted. However, even with these heat-insulating containers, it is inevitable that the temperature of the contents decreases with the passage of time. In particular, the temperature of the contents is remarkably reduced in a heat retaining pot in which the container body is insulated with glass wool. For this reason, a heat retaining pot with an improved heat retaining property in which an electric heater is attached to the bottom of the container body has been put to practical use. [0003] However, a heat retaining pot equipped with an electric heater at the bottom of the container body is satisfactory in heat retaining property,
It is difficult to secure a power supply outdoors. Therefore,
The following pots are considered. [0004] That is, as shown in FIG.
Attach the gas cylinder 3 to the fuel part at the bottom of the gas cylinder 3
Is connected to the gas projecting nozzle 4 via a valve, and the gas projecting nozzle 4 is connected to a mixing pipe 5 into which external air is introduced.
The upper end of the mixing pipe 5 is guided to a combustion section provided above the fuel section, and an oxidizing catalyst 6 having air permeability is arranged so as to surround the jetting section at the upper end of the mixing pipe. An ignition heater 7 is installed, and a heat exchange plate 8 is installed on the outer periphery of the oxidation catalyst 6, and an upper surface of the heat exchange plate 8 and the oxidation catalyst 6 is formed as a heating unit that comes into contact with the bottom of the container 2, This is a heating pot with a heating function in which a portion between the fuel section and the fuel section is divided by a reflector 9. Next, the operation of the heat retaining pot with a heating function will be described. The fuel gas is ejected and supplied to the oxidation catalyst 6 through the gas projecting nozzle 4 and the mixing pipe 5, and the catalytic combustion is started by the action of the oxidation catalyst 6 based on the initial ignition. Container 2 via plate 8
It performs efficient heat exchange with the water inside to heat and keep warm. However, in this heat retaining pot with a heating function, the heat of combustion is transmitted to the container via a heat exchange plate, so that the efficiency is low, and the temperature of the oxidation catalyst is locally controlled. To shorten the life of the oxidation catalyst. Also,
Since the amount of air at the time of ignition and the amount of air at the time of catalytic combustion are the same, there is a problem that if priority is given to ignition performance, the amount of air at the time of catalytic combustion becomes insufficient and incomplete combustion occurs. Therefore, the present invention efficiently transfers the heat of catalytic combustion to a container, efficiently heats the contents, suppresses a rise in the temperature of the catalyst, improves the durability of the catalyst, and improves the durability of the catalyst during ignition. It is an object of the present invention to provide a heat retaining pot with a heating function that optimizes the amount of air at the time and improves combustion efficiency. [0008] In order to achieve the above object, the present invention comprises a container for accommodating a liquid, and a heating device located below the container, wherein the heating device is opened and closed by a gas tank. It comprises a gas ejection nozzle, an air suction ejector, a combustion catalyst, a combustion chamber, and an igniter connected via a valve, and a suction air amount adjusting plate is provided integrally with an operation piece for operating the igniter, The combustion chamber and the bottom of the container are brought into close contact with each other, an insulating tube is provided on a side surface of the container, and a heat insulating material is disposed between the side surface of the container and the insulating tube.
Consists of an ignition circuit, an ignition switch, and a battery.
Switch the suction air volume adjustment plate in conjunction with the switch to adjust the suction air volume
This is a heating pot with a heating function in which a return spring and a return delay device are attached to the joint plate . According to the present invention, the heat of catalytic combustion is efficiently transmitted to the container, the contents are efficiently heated, the temperature rise of the catalyst is suppressed, the durability of the catalyst is improved, and the time of ignition is improved. An insulated pot with a heating function that improves the combustion efficiency by optimizing the amount of air during catalytic combustion can be obtained. Further ignition performance
Is improved. [0010] The invention according to claim 1 includes a container for storing a liquid, and a heating device located below the container, wherein the heating device is connected to a gas tank via an on-off valve. A gas ejection nozzle, an air suction ejector, a combustion catalyst, a combustion chamber, and an igniter, and an operating piece for operating the igniter is provided integrally with a suction air amount adjusting plate, and the combustion chamber and the vessel The bottom of the container is closely attached, and a heat insulating cylinder is provided on the side of the container, and a heat retaining pot with a heating function is provided between the side of the container and the heat insulating cylinder. The heat is transferred to the container to efficiently heat the contents and suppress the rise in temperature of the catalyst, improving the durability of the catalyst and improving the combustion efficiency by optimizing the amount of air during ignition and combustion of the catalyst. It has the action of: [0011] In addition, the ignition circuit an ignition device, the ignition switch, constituted by a battery, in conjunction with the ignition switch and the suction air quantity adjusting plate, the return spring and takes the return delay device with a heating function to the suction air quantity adjusting plate The heat retention pot is provided with an effect of further improving ignition performance. [0012] [Example] (Example 1) Hereinafter, Example 1 of the present invention will be described with reference to FIGS. 1 and 2 show the overall configuration of a heat retaining pot with a heating function and a cross section of a heat source portion. Reference numeral 11 denotes a container for storing a liquid. Reference numeral 12 denotes a heating device provided on the bottom 13 of the container 11. The heating device 12 includes a gas tank 14, an on-off valve 1,
5, a gas ejection nozzle 16, an air suction ejector 17, a combustion catalyst 18, a combustion chamber 19, and an ignition device 20. The air suction ejector 17 has an air intake 1
7a is provided. An ignition device operating piece 21 is attached to the ignition device 20. At one end of the ignition device operation piece 21, a suction air amount adjustment plate 22 is provided. A cylindrical heat insulating tube 23 is provided on the side surface of the container 11, and a heat insulating material 24 is sealed between the side surface of the container 11 and the heat insulating tube 23. Reference numeral 25 denotes a lid that covers the opening of the container 11. Lid 2
5 is opened when the internal pressure of the container 11 becomes high.
A safety valve 26 is provided. The safety valve 26 is a valve seat 2
7, a compression spring 28 and a fixing bracket 29.
The fixing bracket 29 is provided with several steam vent holes 29a. Next, the operation will be described. When the on-off valve 15 is opened and gas is ejected from the gas ejection nozzle 16, air is sucked by the air suction ejector 17 and flows into the combustion catalyst 18 as a mixed gas. When the ignition device operating piece 21 is pressed,
The ignition device 20 is activated, and a spark is generated in the combustion chamber 19.
Further, the suction air amount adjusting plate 22 moves to close the air intake port 17a. FIG. 1 shows a state where the ignition device operating piece 21 is pushed, and FIG. 2 shows a normal state. The suction air amount adjusting plate 22 is provided with a hole 22a so that air optimal for ignition can be taken in. After the ignition, the temperature of the combustion catalyst 18 rises due to the heat of the flame, and when the temperature reaches the catalyst combustible temperature, the combustion shifts from flame combustion to catalytic combustion. At that time, when the ignition device operating piece 21 is released, the suction air amount adjusting plate 23 is detached from the air intake 17a, the opening area of the air intake 17a increases, and air suitable for catalytic combustion is sucked. Combustion efficiency is improved. This state is shown in FIG. The heat of the catalytic combustion is transferred to the bottom 13 of the container 11 efficiently, since the combustion chamber 19 is made of aluminum having excellent thermal conductivity, so that the contents can be efficiently heated. Further, since the heat insulating material 24 is provided on the side surface of the container 11, heat radiation from the side surface of the container 11 is suppressed, and heat loss is reduced. Further, since the combustion heat of the catalyst is efficiently removed from the combustion catalyst 18, the temperature of the combustion catalyst 18 does not become an abnormal temperature, and the durability of the combustion catalyst 18 is improved. When the contents boil and the internal pressure of the container 11 rises abnormally, the safety valve 29 is opened and the internal pressure is reduced, so that there is no explosion, so that it is safe. Reference Example 2 FIG. 3 shows an overall configuration of a heat retaining pot with a heating function and a cross section of a heat source portion. Reference numeral 30 denotes a heat transfer container in which the container 11 and the combustion chamber 19 are integrally formed. Other configurations are the same as those of the heat retaining pot with the heating function of the first embodiment. Since the container and the combustion chamber are integrally formed, the contents can be heated more efficiently. Reference Example 3 FIG. 4 shows the overall configuration of a heat retaining pot with a heating function and a cross section of a heat source. The heat insulating cylinder 23 is provided on the side surface of the container 11, and the exhaust port of the combustion chamber 19 is communicated between the side surface of the container 11 and the heat insulating tube 23. An opening 31 is provided in the upper part of the heat insulating cylinder, and the other configuration is the same as that of the heat retaining pot with a heating function of Reference Example 1. The exhaust gas discharged from the combustion chamber 19 rises while being deprived of heat between the side surface of the container 11 and the heat insulating cylinder 23, and the exhaust gas whose temperature has decreased is discharged from the opening 31. Thus, the exhaust gas is treated and used safely. Reference Example 4 FIG. 5 shows an overall configuration of a heat retaining pot with a heating function and a cross section of a heat source portion. The ignition device 20 includes an ignition circuit 32, an ignition switch 33, and a battery 34, and the ignition switch 33 and the intake air amount adjusting plate 22 are linked. Other configurations are the same as those of the heat retaining pot with a heating function of Reference Example 1. The ignition circuit 32 generates a continuous spark at the time of ignition, thereby improving ignition performance and improving operability. (Embodiment 1 ) FIGS. 6 and 7 show the overall configuration of a heat retaining pot with a heating function and a cross section of a heat source portion. The ignition device 20 includes an ignition circuit 32, an ignition switch 33, and a battery 34. The ignition switch 33 is linked to the suction air amount adjusting plate 22. A return spring 35 is attached to the suction air amount adjusting plate 22. Further, a return delay device 36 composed of a damper utilizing a frictional force or the like is attached to the sliding portion 22a of the suction air amount adjusting plate 22. Other configurations are the same as those of the heat retaining pot with a heating function of Reference Example 1. When the ignition switch 33 is pressed at the time of ignition, a continuous spark is generated in the combustion chamber, and at the same time, the air intake port 17 is opened.
a is closed by the suction air amount adjusting plate 22, a mixed gas having a composition suitable for flame combustion flows into the combustion chamber 19 and is ignited. When the ignition switch 33 is released, the ignition switch 33 returns, but the return of the suction air amount adjusting plate 22 is delayed by the return delay device 36, during which the flame is maintained, and the catalyst combustion surely shifts to catalytic combustion. According to the first aspect of the present invention, there is provided a container for accommodating a liquid, and a heating device located below the container.
The heating device includes a gas ejection nozzle, an air suction ejector, a combustion catalyst, a combustion chamber, and an ignition device connected to a gas tank via an on-off valve, and the suction air is integrally formed with an operation piece for operating the ignition device. A heat-insulating pot with a heating function, comprising an amount adjusting plate, a close contact between the combustion chamber and the bottom of the container, an insulating tube on the side surface of the container, and an insulating material disposed between the side surface of the container and the insulating tube. It efficiently transfers the heat of catalytic combustion to the container, efficiently heats the contents, suppresses the temperature rise of the catalyst, improves the durability of the catalyst, and ignites and burns the catalyst. This has the effect of optimizing the amount of air and improving the combustion efficiency. [0024] In addition, the ignition circuit an ignition device, the ignition switch, constituted by a battery, in conjunction with the ignition switch and the suction air quantity adjusting plate, the return spring and takes the return delay device with a heating function to the suction air quantity adjusting plate This is a heat-insulated pot, and has an advantageous effect of further improving ignition performance.

Heating function insulation pot in Reference Example 1 of a cross-sectional view showing a state during ignition of the heating function insulation pot in Reference Example 1 BRIEF DESCRIPTION OF THE DRAWINGS [Figure 1] The present invention invention; FIG Normal sectional view showing a configuration of a heating function insulation pot in reference example 3 of the heating section view showing a configuration of a function insulation pot [4] the present invention in reference example 2 of a cross-sectional view illustrating a state [3] the present invention sectional view showing a configuration of a heating function insulation pot in the first embodiment of the heating section view showing a configuration of a function insulation pot [6] the present invention in reference example 4 of the present invention; FIG 7 the invention FIG. 8 is a cross-sectional view illustrating a configuration of a heat retaining pot with a heating function according to the first embodiment of the present invention. FIG. 8 is a cross-sectional view illustrating a configuration of a conventional heat retaining pot with a heating function. DESCRIPTION OF REFERENCE NUMERALS 11 container 12 heating device 13 container bottom 14 gas tank 15 Opening and closing Valve 16 Gas ejection nozzle 17 Air suction ejector 17a Air intake 18 Combustion catalyst 19 Combustion chamber 20 Ignition device 21 Ignition device operation piece 22 Suction air amount adjustment plate 23 Insulation tube 24 Insulation material 30 Heat transfer container 31 Opening 32 Ignition circuit 33 ignition switch 34 battery 35 return spring 36 return delay device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-175809 (JP, A) JP-A-59-15713 (JP, A) JP-A-63-207914 (JP, A) JP-A-4- 55605 (JP, A) Fully open 1986-86134 (JP, U) Fully open 1986-86130 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 27/21 A47J 36 / 24 A47J 41/00

Claims (1)

(57) [Claim 1] A container for containing a liquid, and a heating device located below the container, wherein the heating device is connected to a gas tank via an on-off valve, and is provided with a gas jet. It consists of a nozzle, an air suction ejector, a combustion catalyst, a combustion chamber, and an ignition device,
An operation piece for operating the ignition device is provided integrally with a suction air amount adjusting plate, and the combustion chamber and the bottom of the container are brought into close contact with each other, and a heat insulating cylinder is provided on a side surface of the container, and a side surface of the container is provided. A heat insulating material is provided between the heat insulating cylinders, and the ignition device is provided.
The device consists of an ignition circuit, an ignition switch, and a battery.
The fire switch and the suction air amount adjustment plate are linked, and the suction air amount
Heating pot with heating function with return spring and return delay device attached to the adjustment plate .