KR101714655B1 - Heating equipment using liqudfide gas - Google Patents

Abstract

According to the present invention, a heating apparatus using liquefied gas comprises: a combustion unit in which liquefied gas is burned; a vaporization unit which provides a vaporizing space in which the liquefied gas is vaporized; a high-temperature input unit which maintains a high-temperature by the combustion unit; and a thermoelectric element unit which generates electricity through a low-temperature input unit maintaining lower temperature than the high-temperature input unit by cooling the vaporization unit. The heating apparatus supplies liquefied gas with a higher vaporization rate to the combustion unit than in the case in which the liquefied gas is directly supplied from a fuel receiving unit to the combustion unit by vaporizing the liquefied gas discharged from the fuel receiving unit in a liquid state in a spatially separated space from the fuel receiving unit.

Description

HEATING EQUIPMENT USING LIQUDFIDE GAS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a heat generating mechanism that generates heat using vaporized liquefied gas, and more particularly, to a heat generating mechanism capable of generating electricity using heat of a heat generating mechanism.

A thermoelectric element includes a device using a Jeff Beck effect, which is a phenomenon in which an electromotive force is generated by a temperature difference, and a device using a Peltier effect, which is a phenomenon in which heat is absorbed (or generated) by an electric current.

A power generation apparatus using heat loss heat of a heating mechanism using gas as a fuel is disclosed in Korean Patent No. 10-1529219. The power generation device includes a low temperature conduction means in close contact with the outer circumferential surface of the gas cylinder and a high temperature conduction means using high temperature of the ignition portion. The thermoelectric element is attached to the outer surface of the low temperature conduction means, Electricity can be produced.

In addition, a cooling and heating control device for a gas container using a Peltier element is disclosed in Korean Patent Laid-Open Publication No. 10-2012-0109417, which also produces electricity using a low temperature of the gas container room and a high temperature of the combustor.

A portable burner capable of electric production is disclosed in Korean Patent No. 10-1475756.

Thermal power generation is a method of generating electric energy from heat energy by using Seebeck effect. Power generation performance is determined by the temperature difference between the high temperature part (combustion part) and the low temperature part (vaporizing part) of the thermoelectric element. Temperature difference is required.

All of the above-mentioned patents disclose an electric production method using a temperature difference, and all of the above-mentioned patents use a cooling phenomenon occurring outside the portable gas container.

On the other hand, the generation of the heat of vaporization of the portable gas container is actually caused by vaporization of the liquid fuel discharged from the gas discharge port, and the position where the temperature decrease most occurs corresponds to the gas discharge port through which the liquid fuel is vaporized. However, the above-mentioned patents adopt a method of indirectly using the temperature drop of the gas container due to the heat of vaporization around the gas discharge port without directly utilizing the cooling phenomenon caused by the liquid fuel vaporized at the gas discharge port, The efficiency of the thermoelectric power generation used is not effective.

The present invention provides a heat generating mechanism capable of increasing the effect of thermoelectric power generation by directly utilizing the heat of vaporization of the liquefied gas vaporized while being discharged from the fuel receiving portion.

According to another aspect of the present invention, there is provided a heat generating apparatus using a liquefied gas, comprising: a combustion unit that burns a liquefied gas in a vaporized state; The liquefied gas supplied from the fuel receiving portion for containing the liquefied gas is thermally separated from the combustion portion so that the heat of the combustion portion is not directly conducted to the vaporization portion, A vaporizer for supplying a vaporized liquefied gas; And a low temperature input section for maintaining a low temperature state by the liquefied gas vaporized in the vaporizing section, and a thermoelectric element section for generating electricity by using the temperature difference between the high temperature input section and the low temperature input section The vaporizing part is kept at a low temperature state by vaporization of the liquefied gas and is thermally separated from the combustion part so as to prevent the temperature rise by the combustion part to maximize the temperature difference between the high temperature input part and the low temperature input part of the thermoelectric element, The power generation efficiency of the thermoelectric element portion can be increased. In addition, the vaporizing portion provides the vaporizing space formed between the fuel inlet into which the liquefied gas flows from the fuel receiving portion into the vaporizing space and the fuel outlet where the liquefied gas is discharged from the vaporizing space into the combustion portion, in a single unitary space.

A combustion section for combusting the liquefied gas in a vaporized state; A vaporizing section for providing a vaporizing space in which a liquefied gas supplied from a fuel receiving section for containing a liquefied gas is vaporized; And a low temperature input unit for maintaining a relatively lower temperature than the high temperature input unit by the liquefied gas vaporized in the vaporizing unit, wherein the temperature difference between the high temperature input unit and the low temperature input unit The liquefied gas discharged from the fuel receiving portion in a partially liquid state is vaporized in a vaporizing space provided in a spatially separated state from the fuel receiving portion to supply liquefied gas directly from the fuel receiving portion to the combustion portion The vaporization rate of the liquefied gas is relatively increased to supply the gas to the combustion section.

The vaporizing portion is provided with a vaporizing space integrally provided therein and having a fuel inlet through which the liquefied gas flows into the vaporizing space from the fuel containing portion and a vaporizing portion through which the vaporized liquid is discharged from the vaporizing chamber to the combustion portion, The thermoelectric element part is interposed between the combustion part and the vaporization part so that the high temperature input part is close to the combustion part and the low temperature input part is close to the vaporization part.

By providing a separate vaporization space, the liquefied gas discharged in a fluid state in which some liquid and gas are mixed in the fuel accommodation portion can be changed from the vaporization space to the gaseous state intact, and the cooling effect by the heat of vaporization can be enhanced .

Further, most of the cooling by vaporization of the liquefied gas is performed in the vaporizing part, so that it is easy to keep the temperature difference between the combustion part and the vaporizing part constant, and stable development is possible.

In order to increase the internal space of the vaporizing space, a protruding structure protruding from the inner surface of the carburetor body, which forms the vaporizing space, to the vaporizing space may be formed.

In addition, the vaporizing portion has a vaporizing space provided in a pipe shape therein, a fuel inlet through which the liquefied gas flows into the vaporizing space from the fuel containing portion, and a fuel outlet through which the liquefied gas is discharged from the vaporizing space into the combustion portion And the thermoelectric element part is interposed between the combustion part and the vaporization part so that the high temperature input part is close to the combustion part and the low temperature input part is close to the vaporization part.

Further, the pipe-shaped vaporization space may be formed in the inside of the carburetor body so as to increase the contact area of the liquefied gas flowing in the fluid state and the vaporization rate of the liquefied gas.

Further, the fuel inlet may be designed so that the vaporization space is branched at least two or more, and merged at the fuel outlet.

The vaporizer includes a vaporizer body provided in a pipe shape, and a vaporizing space can be provided inside the pipe. At one end and the other end of the vaporizer body, a fuel inlet through which the liquefied gas flows from the fuel receiving portion into the vaporizing space, And the thermoelectric element is interposed between the combustion part and the vaporization part so that the high temperature input part is close to the combustion part and the low temperature input part is close to the vaporization part.

The heat generating mechanism according to the present invention is capable of generating electricity by utilizing the low temperature region due to the vaporization of the liquefied gas and the high temperature of the combustion portion but by providing the separate vaporizing portion capable of fully vaporizing the liquefied gas discharged from the fuel receiving portion, Can be supplied to the combustion section with relatively higher vaporization rate of the liquefied gas than in the case of directly supplying the combustion gas from the fuel receiving section to the combustion section, and the power generation efficiency can be improved together with the cooling effect of the liquefied gas.

Further, in the heating mechanism according to the present invention, most of the cooling of the liquefied gas by vaporization is performed in the vaporizing part, so that it is easy to maintain a constant temperature difference between the combustion part and the vaporizing part.

1 is a view of a portable burner according to an embodiment of the present invention.
2 is a perspective view of the vaporizing portion.
3 is a view for explaining the internal structure of the vaporizing part.
4 to 8 are views of a vaporizer applicable to a heating mechanism according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. For reference, the same numbers in this description refer to substantially the same elements and can be described with reference to the contents described in the other drawings under these rules, and the contents which are judged to be obvious to the person skilled in the art or repeated can be omitted.

First, the heating device referred to in the present invention may include a burner, a lamp stove, a gas stove, or the like capable of burning liquefied gas. In a specific embodiment of the present invention, the burner is a heating device The heating mechanism is not limited to the burner.

The expressions of the liquefied gas and the fuel liquefied gas used in the present specification refer to liquefaction of a gas used as a fuel and refers to liquefaction with a gas used for all fuels such as butane, propane, methane, and propylene . The specific portable gas container of the present invention is exemplified by liquefied gas but not limited to butane gas.

1 is a view of a portable burner according to an embodiment of the present invention. 2 is a perspective view of the vaporizing portion. 3 is a view for explaining the internal structure of the vaporizing part. 4 to 8 are views of a vaporizer applicable to a heating mechanism according to another embodiment of the present invention.

1 to 8, a portable gas burner 100 includes a combustion section 110, a vaporization section 120, and a thermoelectric element section 130, and further includes an ignition device for igniting vaporized liquefied gas A thermal power control unit 150 for controlling the amount of liquefied gas in a gaseous state discharged from the vaporizing unit 120 and a thermal power control unit 150 for selectively blocking the liquefied gas supplied to the vaporizing unit 120 from the fuel receiving unit 10 And a power supply unit 170 for supplying the electric power produced by the thermoelectric element unit 130 to the electric device, and a member such as a power terminal may be used as the electric power supply unit 170 .

The combustion unit 110 includes a flame dispersing unit 112 having a plurality of holes formed therein and capable of uniformly dispersing the flames and a nozzle unit 112 connected to the fuel outlet 126 of the vaporizing unit 120 in the lower part of the flame dispersing unit 112, (114). The gaseous liquefied gas flowing into the nozzle unit 114 is uniformly dispersed in the flame dispersing unit 112 and ignited by the ignition unit 140 to maintain the combustion state. For reference, the fuel outlet 126 and the nozzle portion 114 are connected to each other through a separate fuel supply line (in this embodiment, the fuel supply line is provided with a hose made of a flexible material as shown in FIG. 1) And can supply vaporized liquefied gas to the combustion section.

The gasification unit 120 is disposed closely to the lower portion of the combustion unit 110. The vaporization section 120 provides a vaporization space 128 therein and is configured such that the liquefied gas partially entrained from the fuel receiving section 10 is introduced into the vaporization space 128 through the fuel inlet 124 and into the vaporization space 128 And a carburetor body 122 in which a fuel outlet 126 for supplying the fully vaporized liquefied gas to the combustion portion 110 is formed. And can be formed of a metal material so that heat of cold air and high temperature can be easily conducted.

The carburetor body 122 provided in a state of being closely attached to the bottom of the combustion unit 110 may be formed of a metal material to facilitate high temperature heat generated in the combustion unit 110.

Generally, the gas discharged from the portable gas container is not completely vaporized, and includes some liquid fuel. Therefore, the cooling effect by the heat of vaporization is inevitably lower than the case of completely vaporizing. In order to increase the efficiency of the thermoelectric power generation, the portable gas container may be inverted to guide the liquefied gas to the vaporization unit 120 in order to increase the cooling effect.

However, in the heating mechanism according to the present invention, the liquefied gas discharged from the fuel receiving portion 10 can be completely vaporized in a separate space, thereby enhancing the cooling effect by vaporization and improving the power generation efficiency.

Particularly, since the vaporization part 120 according to the present invention uses the vaporized heat discharged from the portable gas container as it is, the cooling effect can be maximized.

Specifically, data on comparative analysis between the outside temperature of the portable gas container and the vaporization heat of the gas discharge port are attached.

As a portable gas container, it was experimented to accommodate liquefied gas. The gas ejection time was 1 minute, the outdoor temperature was 27.4, and the measurement tolerance (± 0.2).

When the gas is jetted out from the portable gas container (butane liquefied gas) for one minute at the outdoor temperature of 27.4, there is a change in the temperature outside the portable gas container by -0.4, and the gas outlet temperature change by -57 is changed in the same manner. It is confirmed that it is in the form of ice due to leakage and vaporization.

That is, the cooling effect by the heat of vaporization is relatively small in the outer region other than the discharge port of the portable gas container. In such a situation, the present invention maximizes the effect of the thermoelectric generator by disposing the vaporized portion in the discharge port of the gas container and utilizing most of the vaporized heat.

The thermoelectric element part 130 includes a high temperature input part 132 closely contacting the combustion part 110 to maintain a high temperature state by the combustion part 110 and a high temperature input part 132 by a liquefied gas vaporized in the vaporization part 120. [ Temperature input unit 134 that maintains a temperature relatively lower than that of the low-temperature input unit 134 and can generate power using the temperature difference between the high-temperature input unit 132 and the low-temperature input unit 134.

The high temperature input part 132 of the thermoelectric element part 130 may correspond to the upper part of the thermoelectric element part 130 and may be in contact with the combustion part 110. The low temperature input part 134 may be in contact with the vaporization part 120 And may correspond to the lower part of the thermoelectric element part 130. [

The electric power generated by the thermoelectric element part 130 can be transmitted to the electric power supply part 170 by the cable connected to the upper surface and the lower surface of the thermoelectric element part 130.

3, the vaporizing portion 120 is provided with a fluid passage through which a liquefied gas flows in a pipe shape, and the passage corresponds to the vaporizing space 128. [ The vaporizing space 128 in the vaporizing unit 120 is designed to separate at the fuel inlet 124 and to recombine at the fuel outlet 126. It is of course possible that the vaporizing space 128 in the vaporizing section 120 is provided as one passage from the fuel inlet 124 to the fuel outlet 126 as shown in Fig. 4, It is also possible to provide the vaporization space 128 in the vaporization unit 120 in the form of a whirl or a spiral.

In addition, as shown in FIG. 3 or 4, it is not always necessary to form a fuel inlet or an outlet in the carburetor body in the direction opposite to each other, and the inlet or outlet may be formed on the side surface of the carburetor body, It is also possible to do. The vaporization space provided in various shapes, as shown in FIGS. 3 to 5, may further branch the passage to increase the vaporization ratio, Or the like.

The thermoelectric element part 130 is interposed between the combustion part 110 and the vaporization part 120 so that the high temperature input part 132 is in close contact with the combustion part 110 and the low temperature input part 134 is in close contact with the vaporization part 120 do.

The vaporization space 128, which is provided in a pipe shape to increase the contact area of the liquefied gas flowing in the fluid state and the vaporization rate of the liquefied gas, is formed in a bent state inside the vaporizer body 122, And the number of times of flexing and the like can be appropriately adjusted to increase the vaporization rate of the liquefied gas.

For reference, the vaporizer 120 is provided in the form of a hexahedron in the present embodiment, but it may be designed to have a cylindrical or polygonal shape in consideration of the overall shape of the burner. By the outer shape of the vaporizer 120, But is not limited to.

6 may be applied to a heat generating mechanism according to another embodiment of the present invention, and the same reference numerals are used for the same constitution to facilitate comparison with the vaporizing section of the preceding embodiment. Referring to FIG. 6, the vaporization unit 120 shown in FIG. 6 is integrally formed with a vaporization space 128 provided therein, corresponding to the outer shape of the vaporizer body 122. For example, when the vaporizer body 122 is provided in a hexahedron, the vaporization space 128 may also be provided in a hexahedron. However, it is not necessary that the shape of the vaporizing space 128 is the same as the shape of the vaporizer body 122 in order to increase the space utilization.

In addition, the vaporizer 120 shown in FIG. 7 includes the protruding structure 129 so that the liquefied gas in the fluid state is vaporized in the vaporization space 128 at a high vaporization rate.

The protruding structure 129 protrudes toward the vaporization space 128 from the inner surface of the vaporizer body 122 forming the vaporization space 128 for the inner increase of the vaporization space 128.

Although the vaporization part 120 shown in FIG. 7 provides the partition wall-shaped projection structure 129, the projection structure may have a columnar shape within a range that can increase the inner surface area of the partition structure or increase the path of the liquefied gas flowing therein Plate shape, and the like.

Also, as shown in FIG. 8, the vaporization unit 120 may be provided with two separated bodies, and a sealing member such as a packing may be disposed therebetween. 8, the protruding structure 129 may be provided in a shape protruding from an inner surface of a specific one of the two separated vaporizer bodies 122. In particular, in this embodiment, The structure is disposed so as not to be covered, thereby facilitating the inflow or discharge of the fuel.

Although the present invention has been described with reference to the preferred embodiments thereof, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the following claims. It can be understood that

100: Portable gas burner 110: Combustion part
112: Flame dispersion part 114:
120: vaporizer 122: vaporizer body
124: fuel inlet 126: fuel outlet
128: vaporization space 130: thermoelectric element part
132: high temperature input section 134: low temperature input section
140: ignition part 150: thermal power control part
160: Breaker 170: Power supply

Claims (2)

In a heating mechanism using liquefied gas,
A combustion unit for combusting the liquefied gas in a vaporized state;
The liquefied gas being supplied from a fuel receiving portion for containing the liquefied gas is thermally separated from the combustion portion so that the heat of the combustion portion is not directly conducted, A vaporizer for supplying the liquefied gas vaporized by the combustion unit; And
And a low-temperature input unit for maintaining a low-temperature state by the liquefied gas vaporized in the vaporizing unit, wherein a temperature difference between the high-temperature input unit and the low- A thermoelectric element part / RTI >
The vaporization unit maintains a low temperature state by vaporization of the liquefied gas and is thermally separated from the combustion unit so as to prevent the temperature rise by the combustion unit so that the temperature difference between the high temperature input unit and the low temperature input unit Thereby maximizing the power generation efficiency of the thermoelectric element portion,
Wherein the vaporizing portion has a vaporizing space formed between a fuel inlet through which the liquefied gas flows into the vaporizing space from the fuel containing portion and a fuel discharging opening through which the liquefied gas is discharged from the vaporizing chamber to the combustion portion, Wherein the vaporizer body is provided as a single space. The method according to claim 1,
Wherein the thermoelectric element part is interposed between the combustion part and the vaporization part so that the high temperature input part is close to the combustion part and the low temperature input part is close to the vaporization part.

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