CN102679410A - Novel efficient gas cooking appliance integrated with heat pipe, heat-insulation bushing and temperature-difference power generation - Google Patents

Abstract

The invention discloses a novel high-efficiency gas cooker with integrated heat pipe, heat insulation bushing and thermoelectric power generation, including a fire distributor and a panel. The bushing is arranged at the bottom of the panel and above the fire distributor. It is a hollow annular casing with a funnel-shaped inner wall and an annular opening on the top. A plurality of through holes are evenly distributed on the lower part of the inner wall in the circumferential direction. The evaporating section of the heat pipe is located in the hollow inside the liner and the lower part of the inner wall of the liner, the condensing section extends to the outside of the liner, and the heat insulating section is in between. One part of the panel covers the bushing and the other part covers the condensing section of the heat pipe. The thermoelectric power generation sheet is arranged on the outer wall of the bushing, and is connected to the storage battery through a charging circuit. The intelligent control device includes a single-chip microcomputer, a pressure sensor, an A/D converter connected with the single-chip microcomputer, a memory, key control, a display panel and an electromagnetic valve. The pressure sensor is arranged on the upper edge of the inner wall, and the signal is transmitted to the single chip microcomputer through the A/D converter, the button control and display panel are arranged on the panel above the bushing, and the solenoid valve is arranged on the air source pipeline.

Description

A new type of high-efficiency gas cooker with integrated heat pipe, thermal insulation liner and thermoelectric power generation

technical field

The invention relates to a gas cooker, in particular to a high-efficiency gas cooker.

Background technique

With the increasing shortage of fossil fuels, the viewpoint of energy conservation and emission reduction has been deeply rooted in the hearts of the people, and it has become a consensus to improve energy utilization and develop new energy sources. Gas stoves are still the common heat source in most catering industries and ordinary people's homes. After investigation, the efficiency of ordinary household gas stoves is about 50%. The main problem of ordinary gas stoves is that the flame convective heat transfer is slow, and the heat efficiency is very low due to the short residence time of the flue gas and the large amount of heat taken away. At present, my country's stove manufacturers generally pay attention to the research and development of high-efficiency combustion technology, but there are few researches on high-efficiency heat transfer technology. Therefore, although the combustion efficiency of the gas stove produced has been improved to a very high level, the heat efficiency between the stove-cooker is still very low. As a result, the efficiency of gas cookers is always around 50%, far below the international level of 70%, and there is still much room for improvement in energy utilization. Although some people have used the bushing on the cooker, it is only for heating water, and it lacks safety, and it needs an independent pump to drive the water flow, which does not save much energy, so it is not yet possible to promote it. Coupled with the gradual expansion of my country's West-East Gas Pipeline Project in recent years, household stoves will use natural gas as energy for a long period of time in the future. Although there are quite a lot of electric heating equipment, the use of electric heating equipment is a serious downgrade of high-quality energy. Although gas thermal energy is also high-quality energy, it saves the energy loss in the intermediate power generation and transmission links. Therefore, improving the efficiency of existing gas cookers is an urgent need of society.

Contents of the invention

Aiming at the above-mentioned prior art, the present invention provides a new type of high-efficiency gas cooker with integrated heat pipe, thermal insulation bushing and thermoelectric power generation. direct heat exchange; in addition, by increasing the residence time of the flue gas, and distributing heat pipes at high-temperature places that cannot be absorbed by the cooker, this part of the waste heat that cannot be used can be exported to form an independent heat source; the cooker of the present invention implements intelligent fire-off control , on the one hand, the user can set the gas shut-off time, on the other hand, after the user finishes using it, the system can achieve "pot off gas", that is, when there is no force on the pressure device, it will automatically close the gas supply pipeline. Solenoid valve; in addition, a plurality of thermoelectric power generation sheets are arranged on the appropriate position of the bushing, and the generated electric energy is collected in the battery. In addition to supplying the electricity for its own control device, the excess electric energy can also be used for indoor lighting, etc.; There is an air outlet on the bushing to form a wind curtain wall, which not only reduces the pressure on the range hood, but also improves the environment inside the kitchen, killing two birds with one stone.

In order to solve the above-mentioned technical problems, the technical scheme realized by the new high-efficiency gas cooker integrating heat pipes, thermal insulation bushings and thermoelectric power generation of the present invention is to include a fire distributor and a panel, and a bush is arranged at the bottom of the panel and above the fire distributor. The bushing is composed of an annular sleeve body with an annular space. The inner wall of the bushing is in the shape of an inverted cone funnel, and the top of the bushing is provided with an annular opening; Holes; heat pipes are respectively provided in the annular space in the bushing and on the inner side of the lower part of the inner wall of the bushing, and the heat pipes include an evaporation section and a condensation section, the evaporation section is located in the bushing, and the condensation section is located outside the bushing; A part of the panel covers the bushing, and the other part of the panel covers the condensation section of the heat pipe; the outer wall of the bushing (embedded with a plurality of thermoelectric generating sheets, the thermoelectric generating sheets are connected to a storage battery through a charging circuit; also Including an intelligent control device, the intelligent control device includes a single-chip microcomputer and a pressure sensor and an A/D converter, a memory, a key control and a display panel and an electromagnetic valve that are all connected to the single-chip microcomputer, and the pressure sensor is arranged on the At the upper edge of the inner wall, the pressure sensor transmits the signal to the single-chip microcomputer through the A/D converter, the button control and display panel are arranged on the panel above the bushing, and the solenoid valve is arranged on the air source on the pipe.

Further speaking, the new high-efficiency gas cooker of the present invention, wherein:

The bushing is made of heat insulating material.

The surface of the bushing is sprayed with a space heat-insulating porcelain layer with a thickness of 0.3-0.5mm.

The outer wall of the bushing is a cylindrical surface, and the profile of the radial section of the bushing is a right-angled trapezoid with an upper opening.

A fan is provided on the outer side of the bushing, and an air supply hole connecting the annular space of the bushing and the exhaust port of the fan is provided on the outer wall.

The evaporation section of the heat pipe is a helical coil, and the condensation section of the heat pipe is a serpentine coil; the working fluid of the heat pipe is selected from one of hydrocarbon oil, silicone oil and water.

Compared with prior art, the beneficial effect of the present invention is:

Aiming at the gas cookers commonly used in homes at present, the present invention proposes a new type of bushing (different from the original bushing technology that simply heats water) based on the principle of improving fuel utilization rate. The bushing itself is made of heat insulating material, It integrates heat pipe, air curtain wall and thermoelectric power generation technology, and at the same time realizes the intelligent control of the stove.

Description of drawings

Fig. 1 is the front view of the novel high-efficiency gas cooker of the present invention;

Fig. 2 is a top view of the gas cooker shown in Fig. 1;

Fig. 3 is a partially enlarged view of the left part in Fig. 1;

Fig. 4 is the composition block diagram of intelligent control device among the present invention;

Fig. 5 is a control flow chart of the intelligent control device in the present invention.

Detailed ways

The present invention will be further described in detail below in combination with specific embodiments.

The present invention aims at the gas cooker commonly used in the family at present, and in line with the principle of improving the fuel utilization rate, the traditional cooker structure is transformed. A new type of bushing (different from the original bushing technology that simply heats water) is proposed. The bushing itself is made of heat insulating material, which integrates heat pipes, air curtain walls and thermoelectric power generation technology, and realizes the intelligent control of the stove at the same time.

As shown in Fig. 1, Fig. 2 and Fig. 3, the present invention is a novel high-efficiency gas cooker with integrated heat pipe, thermal insulation bushing and thermoelectric power generation. There is a bushing 9, the bushing 9 is composed of an annular sleeve body, the inner wall 3 of the bushing 9 is an inverted conical funnel shape, the shape of the outer wall 10 of the bushing 9 is not limited, but is preferably Cylindrical surface, therefore, the profile of the radial section of the bushing 9 is a right-angled trapezoid with an upper opening. A fan 7 can also be provided on the outside of the bushing 9, and the outer wall 10 is provided with an air supply hole 6 connecting the annular space of the bushing 9 and the air outlet of the fan, so that the air volume sent into the annular space can be evenly distributed. , design an annular air supply pipe communicating with the air supply hole 6 in the annular space, and then be provided with a plurality of air exhaust holes 12 on the pipe, as shown in Figure 3.

The top of the bush 9 is provided with an annular opening 1, as shown in Fig. 2 and Fig. 3; the lower part of the inner wall 3 is evenly distributed with a plurality of through holes 4 as vents in the circumferential direction; the ring in the bush 9 Heat pipes 5 are respectively provided in the air and on the inner side of the lower part of the inner wall of the liner. The heat pipe 5 includes an evaporation section 51 and a condensation section 52. The evaporation section 51 is located inside the liner, and the condensation section 52 is located outside the liner. The evaporation section 51 of the heat pipe is a helical coil, the condensation section 52 of the heat pipe is a serpentine coil, and the working medium of the heat pipe 5 is selected from one of hydrocarbon oil, silicone oil and water. A part of the panel 8 covers the bushing 8, and the other part of the panel covers the condensation section 52 of the heat pipe; a plurality of thermoelectric generating sheets 11 are embedded on the outer wall 10 of the bushing, and the thermoelectric generating sheets 11 are connected through a charging circuit. to a battery.

The present invention also includes an intelligent control device, which is used to control the switch of the cooking range. As shown in FIG. device 22, memory 23, key control and display panel 24 and solenoid valve 25, the pressure sensor 21 is arranged on the upper edge of the inner wall 3, and the pressure sensor transmits the signal to the The single-chip microcomputer 20, the key control and display panel 24 are arranged on the panel 8 above the bushing, and the solenoid valve 25 is arranged on the air source pipeline.

In order to facilitate the understanding of various functions of the present invention, the following describes each function in detail.

1. Bushing part:

Existing common gas stoves are all open combustion, such a structure will cause the flue gas to stay for a short time after combustion, and most of the heat will be lost thereupon. The present invention replaces the original support with a new type of bushing, changes the combustion to an internal combustion type, and prolongs the residence time of the smoke. The heat is collected and utilized. Alternatively, the surface of the bushing is sprayed with a 0.3-0.5 mm thick space heat insulating porcelain layer to achieve a good heat insulation effect. This heat insulating porcelain layer can effectively suppress solar and infrared radiant heat, and the heat insulation suppression efficiency can reach About 90%. The support in the prior art is replaced by a bushing, and a distance of 1 cm is reserved between the bottom of the bushing and the fire distributor to allow the air required for combustion to enter. In addition, an air outlet is opened at an appropriate position inside the bushing. The outer wall of the bushing plays the role of external enclosure, and the inner wall of the bushing plays the role of supporting the cooker. There is an annular space between the inner and outer walls. Ring air outlet for exhaust gas discharge.

Second, the independent heat source part:

The heat pipe in the present invention can form an independent heat source, that is, when a gas cooker is used, the evaporation section 51 of the heat pipe 5 is heated in the bushing 9, the inside of the heat pipe 5 is filled with the working medium in the gap of the liquid-absorbing core and evaporates, and the steam passes through the steam at a high speed. From the back of the space to the condensation section, it condenses into a liquid, in which the latent heat of evaporation absorbed by the working medium evaporates in an isothermal form (the entire surface is uniform) and is transferred to the food to be heated above the panel (or other objects that need to be heated). The mass returns to the heated part by the capillary force of the liquid-absorbing core, thus completing a cycle of heat transfer and mass transfer. In the above waste heat utilization structure, the food is heated in the form of surface contact, without direct flame, and the food will not be burnt, and at the same time, an isothermal cooking surface can be obtained. If the user has no food to be heated, the heat source can be used to heat water. The arrangement of the heat pipe 5 (shown in Figure 1 and Figure 2) is simulated by fluent software (software used to simulate complex flow ranging from incompressible to highly compressible) to simulate the heat flow, and the selected heat flow density is relatively large , and the heat is not easy to be absorbed by the panel, the heat exchange with the flue gas is increased near the circle of vents on the bushing and arranged on the inner and outer sides of the inner wall 3 of the bushing. In addition, the condensation section of the heat pipe is arranged Into the shape of a serpentine runner, also. In the present invention, the annular opening 1 located on the top surface of the bushing, the inner wall 3 of the bushing is provided with ventilation holes that can pass through the annulus of the bushing to discharge exhaust gas into the annulus, and the outer wall 10 of the bushing 9 is provided with a The air supply port 6 of the collar air supply, theoretically, if the wind speed can reach 0.5m/s or more, it can go upward from the annular opening 1 and form an annular wind curtain wall around the cooker, so that the oil fume generated during the cooking process can be blown directly to the cooker. The range hood directly above the cooker prevents people from being exposed to the range hood, improves the kitchen environment, and also reduces the burden on the range hood. In addition, a fan 7 communicating with the air outlet 6 may be provided outside the liner, and the fan 7 is used to blow fresh air into the annular space of the liner 9 to increase the velocity of exhaust gas.

3. Temperature difference power generation part:

Utilize the thermoelectric power generation piece 21 among the present invention to store the electric energy that produces in the storage battery, that is, on the outer wall of the liner 9, be inlaid with a plurality of thermoelectric power generation pieces 21, because, when using the gas cooker, its liner 9 annulus The temperature range is roughly 140~200°C. A number of rectangular openings are opened on the outer wall, and a number (same as the number of openings) are embedded in a number of semiconductor thermoelectric generators. Between the two sides (cold and hot surfaces) of the thermoelectric generator 21, 120 temperature difference above ℃, thus, each thermoelectric power generation piece 21 can generate electric energy with a load voltage of 3.5V~12V and a load current of 0.6 ampere, and the thermoelectric power generation piece 21 stores the generated electric energy in the battery through a charging circuit, for Power supply for small electrical facilities, such as lighting fixtures for range hoods, chargers, etc.

The principle of thermoelectric power generation in the present invention is: using a semiconductor thermal power generation sheet (also known as a semiconductor cooling sheet or Pall patch), which is formed by arranging many N-type and P-type semiconductor particles, and the NPs are connected by conductors to form The complete circuit is finally sandwiched by two ceramic sheets like a sandwich biscuit. The ceramic sheet is insulated and has good heat conduction. When the direct current passes through the galvanic couple formed by two different semiconductor materials in series, the two ends of the galvanic couple can respectively absorb heat and heat. Release heat; on the contrary, when one end of the power generation chip is in a high temperature state and the other end is in a low temperature state, an electromotive force will be formed in the circuit, that is, thermoelectric power generation will be generated. The model of the thermoelectric power generation sheet in the present invention is TEP1-12656-0.8, its outer dimension is 56mm×56mm, and its thickness is 4mm. The voltage output by the thermoelectric generator is stored in the storage battery through the charging circuit.

Experimental example of thermoelectric power generation in the present invention: load voltage 12V, load current 600MA, temperature difference 120°C, size 62×62×3.8mm; so the power generation of a single chip is 7.2w. It is estimated that 8-10 pieces are arranged on the bushing, and the power is 57.6-72w. Enough to drive the work of its own control system and the lighting of energy-saving lamps.

4. Intelligent control device

Based on the design goal of energy saving and emission reduction, the present invention uses an intelligent control device to automatically control the switch within a period of time (10 to 20 seconds) when the cooker is away from the cooker, so as to achieve the purpose of saving energy and reducing emissions; The pressure time is used to control the closing of the solenoid valve, which has a simple structure and a long life, and can better achieve automation and achieve better control effects; the user can leave the stove after setting a time, especially when using a pressure cooker When using, you don't need to pay attention to the time all the time, but keep it by the side of the pot for the convenience of users. Among them, the single-chip microcomputer 20 chooses 8031 chip, the memory 23 chooses 2732 (4K), and in addition, 74LS373 is used as the lower 8-bit address latch. As shown in Figure 4, adopt single-chip microcomputer 20 as the processor of digital controller among the present invention, wherein, the electric current signal that is sent by pressure sensor 21 enters single-chip microcomputer 20 after being converted by A/D converter 22, through single-chip computer calculation processing, will The output digital quantity is converted by D/A and sent to the electric actuator, that is, the solenoid valve 25 . Its control process is: as shown in Figure 5, utilize button control and display panel 24 to set the allowable time from fire, store the set value in the memory 23, can intelligently record the time limit of input, when the cooking utensil leaves the cooking stove more than this During the set time, the signal of the pressure sensor 21 flows through the single-chip microcomputer 20, and the single-chip microcomputer 20 is used to sense the time from the fire, thereby controlling the voltage signal through the conversion and control process, and closing the solenoid valve 25.

Experimental example of the present invention:

The heat dissipated through the bushing (not involving the heat taken away by the exhaust gas), the bushing is equivalent to an air thermal resistance of δ=100mm, and the thermal conductivity is λ=0.02w/(m k); The temperatures inside the sleeve annulus and outside the bushing are 800°C and 40°C respectively; the convective heat transfer coefficient of the inner wall surface of the annulus in contact with the flame is 30W/m2; the convective heat transfer coefficient of the outer wall surface of the annulus is 6W/m2 ; Then the heat flux lost can be obtained as:

$\mathrm{<span\; class="notranslate">\; q</span>}<span\; class="notranslate">\; =</span>\frac{{\mathrm{<span\; class="notranslate">\; t</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; <figure-callout\; id="2"\; label="t\; f"\; filenames="HDA00001705327000011.png,HDA00001705327000012.png"\; state="\{\{state\}\}">t</figure-callout></span><figure-callout\; id="2"\; label="t\; f"\; filenames="HDA00001705327000011.png,HDA00001705327000012.png"\; state="\{\{state\}\}">\; </figure-callout>}}_{\mathrm{<span\; class="notranslate">\; </span>}}}{\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{{\mathrm{<span\; class="notranslate">\; <figure-callout\; id="1"\; label="h"\; filenames="HDA00001705327000013.png"\; state="\{\{state\}\}">h</figure-callout></span>}}_{\mathrm{<span\; class="notranslate">\; 1</span>}}}\underset{\mathrm{<span\; class="notranslate">\; i</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1</span>}}{\overset{\mathrm{<span\; class="notranslate">\; no</span>}}{\mathrm{<span\; class="notranslate">\; \&Sigma;</span>}}}\frac{{\mathrm{<span\; class="notranslate">\; \&delta;</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}}{{\mathrm{<span\; class="notranslate">\; \&lambda;</span>}}_{\mathrm{<span\; class="notranslate">\; i</span>}}}<span\; class="notranslate">\; +</span>\frac{\mathrm{<span\; class="notranslate">\; 1</span>}}{{\mathrm{<span\; class="notranslate">\; <figure-callout\; id="2"\; label="h"\; filenames="HDA00001705327000011.png,HDA00001705327000012.png"\; state="\{\{state\}\}">h</figure-callout></span>}}_{\mathrm{<span\; class="notranslate">\; 2</span>}}}}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; \&kappa;</span>}<span\; class="notranslate">\; (</span>{\mathrm{<span\; class="notranslate">\; t</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; 1</span>}}<span\; class="notranslate">\; -</span>{\mathrm{<span\; class="notranslate">\; t</span>}}_{\mathrm{<span\; class="notranslate">\; f</span>}\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; )</span><span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 146.15</span>}\mathrm{<span\; class="notranslate">\; W</span>}<span\; class="notranslate">\; /</span>{\mathrm{<span\; class="notranslate">\; <figure-callout\; id="2"\; label="m"\; filenames="HDA00001705327000011.png,HDA00001705327000012.png"\; state="\{\{state\}\}">m</figure-callout></span>}}^{\mathrm{<span\; class="notranslate">\; 2</span>}}<span\; class="notranslate">\; ,</span>$

The area of the bushing is about 0.25m ² . In summary, the heat loss is about 36.54W.

According to the maximum efficiency (theoretical upper limit) calculation of the present invention, Carnot's theorem tells us that all reversible heat engines working between the same two heat sources with different temperatures have the same and the highest efficiency. (Assume that the temperature of the inner and outer surfaces is 800°C and 40°C respectively)

η=1-T ₂ /T ₁ =72.7%

Therefore, the maximum utilization rate of the lost waste heat is 50%*72.7%=36.3%.

Because the heat pipe structure is arranged inside and outside the bushing in the present invention, a small independent heat source can be formed; an annular opening for exhausting air is arranged on the bushing to form a wind curtain wall, which can improve the indoor environment and reduce the burden on the range hood; It has a temperature difference power generation structure, which can provide electricity for the intelligent control device and indoor lighting in the present invention; a single-chip microcomputer is used to control the closing of the solenoid valve, which saves energy, is convenient and safe.

Preliminary analysis of feasibility and energy-saving benefit of the present invention:

Gas stoves are still one of the must-haves in ordinary people's homes. Although living standards have been greatly improved now, gas stoves will not withdraw from the historical stage of our country at this stage, but people hope that they will become more and more environmentally friendly and intelligent. , efficient and more user-friendly. This product is designed from the perspective of people's consumption needs and energy saving and emission reduction, and the output of gas cookers is still not reduced (taking Hunan Province as an example, the output of gas cookers from January to March 2012 is 621,049 sets), so there is a vast market. The market space is very feasible.

After market research, assuming that a family uses 1 bottle of gas (15 kg) per month on average and 12 bottles of gas a year, based on the current market price of 110 yuan, the annual liquefied gas usage fee is 1320 yuan. If the efficiency can be improved About 25%, can save 3 bottles of gas (45 kg) per year, totaling 330 yuan. The service life of a stove is calculated on the basis of eight years, and a total of eight years can save 330 yuan/year × 8 years = 2640 yuan. From the perspective of social benefits, assuming that 50 million households across the country use this type of gas stove, each household can save 45 kilograms of gas per year, and the country can save 50 million households × 45 kilograms per household = 2.25 billion kilograms per year.

Although the present invention has been described above in conjunction with the drawings, the present invention is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, rather than restrictive. Under the inspiration, many modifications can be made without departing from the gist of the present invention, and these all belong to the protection of the present invention.

Claims (7)

1. the new and effective gas kitchen ranges of an integrated heat pipe, heat insulation housing and thermo-electric generation comprises distributor and panel (8), in the bottom of panel (8) and be positioned at place, distributor top and be provided with a lining (9), it is characterized in that,

Said lining (9) is made up of the annular body with annular space, and the inwall (3) of lining (9) is the infundibulate of inverted cone, and the top of said lining (9) is provided with the opening (1) of an annular;

The bottom of said inwall (3) upwards is being evenly equipped with a plurality of through holes (4) week;

In the annular space in the lining (9) and place, the inboard of lining inwall bottom is provided with heat pipe (5) respectively; Said heat pipe (5) comprises evaporator section (51) and condensation segment (52); Said evaporator section (51) is positioned at lining, and said condensation segment (52) is positioned at the lining outside;

The part of panel (8) covers lining (8), and another part of panel covers the condensation segment of heat pipe (52);

Be embedded with a plurality of thermo-electric generation sheets (11) on the outer wall of said lining (10), said thermo-electric generation sheet (11) is connected to a battery through a charging circuit;

Also comprise intelligence controlling device; Said intelligence controlling device comprises a single-chip microcomputer (20) and a pressure sensor (21) and the A/D converter (22) that all is connected with said single-chip microcomputer (20), memory (23), presses key control and display floater (24) and magnetic valve (25); Said pressure sensor (21) is arranged on the place, upper edge of said inwall (3); Said pressure sensor passes to said single-chip microcomputer (20) through said A/D converter (22) with signal; On the said panel (8) that is arranged on lining top by key control and display floater (24), said magnetic valve (25) is arranged on the gas source pipe.

2. according to the new and effective gas kitchen ranges of the said integrated heat pipe of claim 1, heat insulation housing and thermo-electric generation, it is characterized in that said lining (9) adopts heat-barrier material to make.

3. according to the new and effective gas kitchen ranges of the said integrated heat pipe of claim 1, heat insulation housing and thermo-electric generation, it is characterized in that the surface of said lining (9) is coated with the adiabatic enamel coating of space of 0.3～0.5mm thickness.

4. according to the new and effective gas kitchen ranges of the said integrated heat pipe of claim 1, heat insulation housing and thermo-electric generation; It is characterized in that; The outer wall (10) of said lining (9) is the face of cylinder, and the profile of the radially section of lining (9) is one to have the right-angled trapezium of upper shed.

5. according to the new and effective gas kitchen ranges of the said integrated heat pipe of claim 1, heat insulation housing and thermo-electric generation; It is characterized in that; The outside of said lining (9) is provided with a blower fan (7), and said outer wall (10) is provided with the annular space of connection lining (9) and the wind pushing hole (6) of blower fan exhaust outlet.

6. according to the new and effective gas kitchen ranges of the said integrated heat pipe of claim 1, heat insulation housing and thermo-electric generation, it is characterized in that the evaporator section of said heat pipe (51) is the spiral line type coil pipe, the condensation segment of said heat pipe (52) is a serpentine coil.

7. according to the new and effective gas kitchen ranges of the said integrated heat pipe of claim 1, heat insulation housing and thermo-electric generation, it is characterized in that the working medium of said heat pipe (5) is selected a kind of in hydrocarbon ils, silicone oil and the water.

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