CN204970848U - Thermoelectric generation thermos - Google Patents

Abstract

A thermoelectric kettle for generating electricity with temperature difference, comprising a kettle body arranged on a combustion plate. The kettle body is provided with a secondary air inlet passage for dividing the kettle body into a fire tube and a water storage chamber. The outer wall of the secondary air inlet passage is provided with a temperature difference The power generation module has a water injection port connected to the water storage chamber on the pot body, and a smoke exhaust port connected to the fire pipe on the top of the pot body. In the utility model, when the fuel in the combustion disk burns, the heat of the flue gas in the fire pipe is transferred to the hot end of the thermoelectric power generation module through the secondary air inlet channel, and the cold end of the thermoelectric power generation module heats the cold water in the water storage chamber , at the same time, the electricity generated by the thermoelectric power generation module can be used by external equipment; the thermoelectric power generation module installed in the body of the utility model can make the electric energy generated by the thermoelectric power generation module be used for lighting or communication equipment while the kettle is boiling water. use. The utility model has the advantages of less investment, simple operation, long service life, convenient carrying, etc., and is suitable for camping and working in the wild.

Description

A thermoelectric kettle

technical field

The utility model relates to a hot water kettle, in particular to a temperature difference power generation hot water kettle.

Background technique

The traditional kettle for boiling water is a flat-bottomed kettle. When boiling water, the flame heats the bottom of the kettle. The water at the bottom of the kettle is heated and transfers heat to the upper layer of water, gradually boiling the water. Its disadvantage is that except that the heat is mainly absorbed by the bottom of the flat pot, most of the heat is lost to the air. The heat exchange area at the bottom of the pot is very limited, and the heat loss caused by the fuel is more, resulting in a long time for boiling water and slow heating. In order to solve this defect, some manufacturers increase the heating efficiency by increasing the heating area of the bottom of the pot, but it still cannot solve the problems of flame and oxygen mixing and insufficient combustion, and the heat energy utilization rate is low. In order to solve the shortcomings of mixing and insufficient combustion, the patent application No. 88218697.3 discloses a "chimney-type fast hot water kettle", and the patent No. ZL200620023869.9 discloses "a high-efficiency energy-saving hot water kettle". Patent No. 201010248309.4 discloses "energy-saving kettle", patent application No. 201110214280.3 discloses "an internal combustion kettle", patent No. 201110196884.9 discloses "a kettle", patent No. 201220117789.5 discloses "An energy-saving hot water kettle", the above-mentioned patents set a hollow fire tube in the center of the kettle body, which increases the residence time of high-temperature flue gas, increases the heat transfer area and the convective heat transfer intensity on the fire side, and reduces heat loss. Improve heating efficiency and speed up hot water. In order to further improve the combustion efficiency and thermal efficiency, the patent application No. 201120366757.4 discloses a "firewood boiling water stove with secondary air intake". Secondary air inlets are set around the pipe, and the secondary oxygen is supplied through the secondary vents to burn the CO in the flue gas again, thereby improving the combustion efficiency and intensity, and improving the utilization rate of heat energy.

However, the above-mentioned prior art and improved technical solutions are all limited to domestic hot water kettles. Therefore, the above-mentioned technology cannot solve the problem of providing lighting for field work or power supply for field communication equipment while boiling water.

Utility model content

The purpose of this utility model is to overcome the problems in the prior art and provide a temperature difference power generation hot water kettle, which uses the temperature difference between the high temperature of the combustion fire tube and the low temperature of the water in the kettle to generate electricity for lighting or field communication equipment. At the same time, power generation is also taken into account, and the utility model has low manufacturing cost, low use and maintenance cost, and stable and reliable performance.

In order to achieve the above object, the utility model adopts the following technical solutions:

The utility model comprises a pot body arranged on a combustion plate, and a secondary air inlet channel is arranged in the pot body to divide the pot body into a fire tube and a water storage chamber, and a temperature difference power generation device capable of providing electric energy is arranged on the outer wall of the secondary air inlet channel. Module, the top of the kettle body is provided with a smoke exhaust port that communicates with the fire pipe.

The secondary air inlet channel is filled with open-cell metal foam.

The material of the open-cell metal foam is copper or aluminum, the pore density of the open-cell metal foam is 5-15PPI, and the porosity is 50-90%.

Secondary air inlet holes are opened on the inner wall of the secondary air inlet channel.

A water injection port communicated with the water storage chamber is provided on the side wall of the pot body; a secondary ventilation hole communicated with the secondary air inlet channel is provided at the lower end of the pot body.

The cross section of the fire tube is a regular polygon, and the ratio of the area of the upper end surface of the fire tube to the area of the lower end surface is 1: (2-3).

An air inlet is opened on the side wall of the combustion disc.

The hot end of the thermoelectric power generation module is bonded to the secondary air inlet channel with thermally conductive adhesive.

The kettle body is provided with a storage battery for storing the electric energy generated by the thermoelectric power generation module.

A group of handles are arranged on the side wall of the kettle body.

Compared with the prior art, the utility model has the beneficial effects as follows: the utility model is provided with a pot body on the combustion plate, and the pot body is provided with a secondary air inlet channel that divides the pot body into a fire pipe and a water storage chamber. A thermoelectric power generation module is installed on the outer wall of the air inlet channel; when the fuel in the combustion tray burns, the heat of the flue gas in the fire tube is transferred to the hot end of the thermoelectric power generation module through the secondary air inlet channel, and the cold end of the thermoelectric power generation module will be The cold water in the water storage chamber is heated, and at the same time, the electricity generated by the thermoelectric power generation module can be used by external equipment; Electrical energy, used for lighting or communication equipment. The utility model has the advantages of less investment, simple operation, long service life, convenient carrying, etc., and is suitable for camping and working in the wild.

Furthermore, a secondary air inlet channel filled with open-pore metal foam is provided between the outer wall of the fire tube and the inner wall of the pot in the utility model. Since the bottom of the fire tube is large and the top is small, just like a chimney, the heating area is large and the effect is good. Fast heat exchange; on the one hand, when the unburned flue gas in the fire pipe rises to the secondary ventilation hole, the temperature of the secondary air rises when it enters the secondary air inlet channel, and the secondary air is supplied with oxygen through the secondary air intake hole to discharge the flue gas On the other hand, the presence of open-cell metal foam prevents the high-temperature flame from directly scouring the thermoelectric power generation module, which reduces the temperature of the hot end of the thermoelectric power generation module and effectively prevents the thermoelectric power generation module from overheating.

Description of drawings

Fig. 1 is a front view of the utility model.

Fig. 2 is a sectional view of the utility model.

FIG. 3 is a partially enlarged view of the circled area in FIG. 2 .

Fig. 4 is a sectional view along line A-A in Fig. 2 .

Fig. 5 is a schematic diagram of the structure of the combustion disc of the present invention.

Among them, 1 is the pot body; 2 is the water injection port; 3 is the fire pipe; 4 is the secondary air inlet hole; 5 is the secondary air inlet channel; 6 is the thermoelectric power generation module; 7 is the water storage chamber; 8 is the secondary ventilation Holes; 9 is a combustion disc; 9-1 is an air inlet; 10 is a storage battery.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

Referring to Fig. 1-2, the utility model includes a pot body 1 arranged on a combustion plate 9, and a secondary air inlet channel is arranged inside the pot body 1, and the secondary air inlet channel divides the inside of the pot body 1 into a fire pipe and a storage tank. The outer wall of the water chamber and the secondary air inlet channel is provided with a thermoelectric power generation module capable of providing electric energy, the fire tube is used as the hot end of the thermoelectric power generation module, and the water storage chamber in contact with the thermoelectric power generation module is used as the cold end of the thermoelectric power generation module; The air inlet channel 5 is filled with open-cell metal foam, which is copper or aluminum with a pore density of 5-15PPI and a porosity of 50-90%, and a secondary air-inlet hole 4 is set on the inner wall of the secondary air-inlet channel 5 , the temperature difference power generation module 6 is set on the outer wall of the secondary air inlet channel 5; the cross section of the fire pipe 3 is a regular polygon, and the fire pipe 3 is arranged in the vertical direction, the ratio of the area of the upper end surface of the fire pipe 3 to the area of the lower end surface It is 1: (2~3). The lower end of the outer wall of the pot body 1 is provided with a secondary ventilation hole 8 communicating with the secondary air inlet channel 5; the outer wall of the pot body 1 is provided with a water injection port 2 connected with the water storage chamber 7, and the water injection port 2 is provided with a water port cover; A group of handles for lifting the kettle are provided on the side wall of the kettle body 1 .

The working principle of the utility model is: a fire is lit on the combustion plate 9, the kettle body 1 filled with cold water is placed on the combustion plate 9, the flame is directly discharged from the fire pipe 3 upwards through the smoke exhaust port, and the secondary air inlet channel 5 is connected with the kettle body. A closed water storage cavity 7 is formed between the outer walls of the body 1 , and a secondary air inlet channel 5 and a thermoelectric power generation module 6 are provided between the outer side of the fire tube 3 and the water storage cavity 7 . The cold water and the fire tube in the water storage chamber 7 respectively constitute the hot and cold ends of the thermoelectric power generation module, and the power generated by the thermoelectric power generation is stored in the battery for use in lighting or charging equipment.

The working process of the utility model for providing hot water and generating electric energy is as follows: first put combustible substances into the combustion disk 9, then ignite, the combustible substances burn in the combustion disk 9, and then place the pot body 1 above the combustion disk, and the smoke It can be fully burned through the secondary combustion air inlet arranged inside the pot body, and then discharged upward from the fire pipe 3. The secondary combustion makes full use of fuel and improves the utilization rate of heat energy. The temperature difference power generation module installed between the secondary air inlet channel 5 and the water storage chamber 7 generates electricity under the action of the temperature difference between high-temperature flue gas and low-temperature water, thereby generating electric energy, which is stored in the battery 10 for use in lighting or communication equipment. Due to the use of the secondary air intake combustion principle, the combustion is sufficient, with less smoke and dust, less pollution, fast heating speed, and can use a variety of fuels, such as straw pellets, firewood and coal. The utility model is simple to manufacture and is suitable for outdoor activities and field work.

In the utility model, since the lower end of the fire tube is a large-diameter fire inlet, and the upper end is a small-diameter smoke exhaust port, the design of the fire tube can increase the heating area, the water temperature rises quickly, and fuel can be saved. In addition, the cross-section of the fire tube is designed to be a regular polygon to facilitate the installation of the thermoelectric power generation module, and the thermoelectric power generation module 6 is bonded to the secondary air inlet channel with a heat-resistant heat-conducting adhesive (at least 400° C.).

Referring to Figure 3-5, the open-pore metal foam is filled in the secondary air inlet channel 5. On the one hand, the temperature of the secondary air outside the kettle body 1 enters the secondary air inlet channel 5, and the temperature rises, and the high-temperature air enters the fire tube to enhance combustion. On the other hand, it avoids the high-temperature flame from directly scouring the thermoelectric power generation module, reduces the thermal resistance between the fire tube 3 and the thermoelectric power generation module 6 hot ends, and prevents the thermoelectric power generation module from overheating. Transfer to the thermoelectric power generation module, so that the hot end of the thermoelectric power generation module maintains a certain temperature; the side wall of the combustion disk 9 is provided with an air inlet 9-1.

The utility model provides a temperature difference power generation hot water kettle, which uses the temperature difference between the high temperature of the combustion fire tube and the low temperature of the water in the water storage chamber to generate electricity, which can make full use of firewood combustion and at the same time provide hot water for field use and lighting, communication and other equipment. Simple, firewood burning efficiency is high.

The above-mentioned structure is described as a preferred implementation structure for realizing the purpose of the utility model, but not only limited to the structure, any modification, change or/and replacement of the utility model within the scope of the claims should be regarded as the protection of the utility model within range.

Claims (10)

1. a thermo-electric generation hot-water bottle, it is characterized in that, comprise the kettle body (1) be arranged on tray for combustion (9), the secondary air passage (5) kettle body (1) being divided into fire tube (3) and water storage cavity (7) is provided with in kettle body (1), the outer wall of secondary air passage (5) is provided with the temperature-difference power generation module (6) that can provide electric energy, the top of kettle body (1) arranges the exhaust opening be connected with fire tube (3).

2. a kind of thermo-electric generation hot-water bottle according to claim 1, is characterized in that, is filled with open cell metallic foam in described secondary air passage (5).

3. a kind of thermo-electric generation hot-water bottle according to claim 2, is characterized in that, the material of described open cell metallic foam is copper or aluminium, and the hole density of open cell metallic foam is 5 ~ 15PPI, and porosity is 50 ~ 90%.

4. a kind of thermo-electric generation hot-water bottle according to claim 1 and 2, is characterized in that, described secondary air passage (5) inwall offers secondary intake opening (4).

5. a kind of thermo-electric generation hot-water bottle according to claim 1, is characterized in that, described kettle body (1) sidewall offers the water filling port (2) be connected with water storage cavity (7); The twice aeration hole (8) be connected with secondary air passage (5) is offered in the lower end of kettle body (1).

6. a kind of thermo-electric generation hot-water bottle according to claim 1, it is characterized in that, the cross section of described fire tube (3) is regular polygon, and the ratio of the area of fire tube (3) upper end cross section and the area of lower end cross section is 1:(2 ~ 3).

7. a kind of thermo-electric generation hot-water bottle according to claim 1, is characterized in that, described tray for combustion (9) sidewall offers air inlet (9-1).

8. a kind of thermo-electric generation hot-water bottle according to claim 1, is characterized in that, adopts heat-conducting glue to bond between the hot junction of described temperature-difference power generation module (6) and secondary air passage.

9. a kind of thermo-electric generation hot-water bottle according to claim 1, is characterized in that, described kettle body (1) is provided with the battery (10) of the electrical power storage produced by temperature-difference power generation module.

10. a kind of thermo-electric generation hot-water bottle according to claim 1, is characterized in that, described kettle body (1) sidewall is provided with one group of handle.