CN215381480U - Gas type air heat exchange flue gas generating device - Google Patents

Abstract

The utility model relates to the technical field of smoking appliances, and particularly discloses a gas type air heat exchange smoke generating device which comprises a shell, wherein a gas tank, a preheating mechanism and a smoke generating unit are arranged in the shell, the preheating mechanism comprises a closed first cavity, a combustion unit and a heat exchange unit are arranged in the first cavity, high-temperature waste gas generated by combustion of the combustion unit flows into the heat exchange unit to exchange heat with sucked air, and then the sucked air heats smoke generating materials in the smoke generating unit to generate sucked smoke. According to the scheme of the utility model, the suction air and the high-temperature waste gas generated during combustion of the fuel gas separately flow through two different paths, and the suction air after heat exchange heats the smoking material to generate the smoking smoke, so that the smoking smoke sucked by a user does not contain the combustion waste gas, the purity of the smoke can be improved to improve the taste of the smoke, and the influence on health caused by the suction of the combustion waste gas by the user is avoided.

Description

Gas type air heat exchange flue gas generating device

Technical Field

The utility model relates to the technical field of smoking set, and particularly discloses a gas type air heat exchange smoke generating device.

Background

The cigarette is not burnt by heating, belongs to one of emerging tobacco products, and is mainly characterized in that the tobacco does not need to be burnt compared with the traditional cigarette, so the content of harmful ingredients such as tar, carbon monoxide and the like generated by the tobacco is lower, and compared with other novel tobacco products, the cigarette is closest to the traditional cigarette in the aspects of use mode and flavor characteristics.

The heating device is a core device for heating the non-combustible cigarette smoking set, and can be divided into an electric heating type, a fuel heating type and a physical and chemical reaction heating type according to different heating modes. Most of the existing heating devices adopt an electric heating mode, and the electric heating has the advantages of safety and stability, but in the heating device adopting the electric heating mode, no matter a heating rod or a heating sheet is adopted, no matter central heating or circumferential heating is adopted, a heating element needs to be heated firstly, and heat is transferred to a fuming base material through the heating element, so that the defects of small heat transfer area, uneven temperature and low heat efficiency exist.

The product of gas heating among the current smoking set heating device mainly divide into solid fuel (like charcoal) heating and gas fuel heating two types, and the gas that produces in the current smoking set heating device that uses the gas directly is inhaled in the user mouth, both can influence flue gas taste and also healthy safety problem, and in addition, current gas heating mode can not make full use of waste gas heat, and the thermal efficiency is lower.

Disclosure of Invention

The utility model aims to provide a gas type air heat exchange smoke generating device to solve the problems in the prior art.

In order to achieve the purpose, the basic scheme of the utility model is as follows:

a gas type air heat exchange flue gas generating device comprises a shell, wherein a gas tank, a preheating mechanism and a flue gas generating unit are arranged in the shell, the preheating mechanism comprises a closed first cavity, a combustion unit and a heat exchange unit are arranged in the first cavity, and the gas tank is positioned below the first cavity and used for storing gas;

the combustion unit comprises a closed second cavity fixedly connected with the first cavity, the heat exchange unit comprises a closed third cavity fixedly connected with the first cavity, gaps are left among the first cavity, the second cavity and the third cavity to form a preheating cavity, a hollow spiral pipe is arranged in the third cavity and spirally winds around a vertically arranged axis, the lower end of the hollow spiral pipe is communicated with the preheating cavity, the preheating cavity is communicated with the outer space of the shell through a first through hole, the upper inner cavity of the second cavity is communicated with the upper inner cavity of the third cavity through a first pipeline, the lower inner cavity of the second cavity is communicated with the outer space of the shell through a second pipeline, a third pipeline is arranged at the bottom of the third cavity, the upper end of the third pipeline is communicated with the inner cavity at the bottom of the third cavity, and the lower end of the third pipeline is communicated with the external space of the first cavity;

the smoke generating unit is positioned above the preheating mechanism and comprises a fourth cavity with an opening at the upper end, the upper end of the fourth cavity is fixedly connected with the inner wall of the shell in a sealing manner, a second through hole matched with the upper end of the fourth cavity is formed in the upper end of the shell, so that the inner cavity of the fourth cavity is communicated with the outer space of the shell, a cigarette holder is detachably connected to the second through hole, a third through hole is formed in the bottom plate of the fourth cavity, and the upper end of the hollow spiral tube is communicated with the third through hole;

the gas tank is provided with a gas guide tube, the lower end of the gas guide tube is communicated with the inner cavity of the gas tank, the upper end of the gas guide tube extends into the second cavity, an igniter corresponding to the upper end of the gas guide tube is fixedly connected in the second cavity, and the gas guide tube is provided with a first electromagnetic valve for controlling the gas flow in the gas guide tube;

an electric appliance chamber is arranged in the shell, a rechargeable battery and a controller electrically connected with the rechargeable battery are arranged in the electric chamber, a control button for controlling the controller to operate is arranged on the shell, and the igniter and the first electromagnetic valve are electrically connected with the controller.

Further, in order to enable the gas to be sufficiently combusted in the second cavity to sufficiently release heat, exhaust of waste gas generated by combustion of the gas needs to be accelerated, and the situation that the waste gas is gathered in the second cavity to affect sufficient combustion of the gas is prevented.

Further, in order to make the heated suction air to heat the smoking material evenly, the third through hole is set to the back taper hole, the lower extreme in back taper hole with the upper end intercommunication of cavity spiral pipe, the suction air after the heating gets into by the upper end of cavity spiral pipe during the back taper hole, after the diffusion in back taper hole suction air evenly distributed heats the smoking material in the tobacco shred frame.

Further, in order to keep the temperature of the sucked air for heating the smoking material stable, a temperature sensor is arranged in the third through hole and electrically connected with the controller, when the temperature sensor detects that the temperature of the sucked air subjected to heat exchange is lower than the set optimal sucking temperature, the temperature sensor sends a heating signal to the controller, the controller controls the first electromagnetic valve to perform corresponding action so that the gas flow of the gas tank flowing into the second cavity through the gas guide pipe is increased, and on the contrary, when the temperature of the sucked air is overhigh, the controller controls the first electromagnetic valve to act so as to reduce the gas flow entering the gas guide pipe.

Further, in order to enable the gas to be stably combusted in the second cavity to provide stable heating temperature, the upper end of the gas guide tube is provided with a stable combustion cover which enables the gas to be stably released from the upper end of the gas guide tube, and the gas is stably combusted in the second cavity.

Furthermore, in order to reduce heat loss, a heat reflecting layer is arranged on the inner wall of the fourth cavity.

Further, to improve heat exchange efficiency by accelerating heat transfer, the hollow spiral tube is a member made of copper.

Further, the smoke generating unit further comprises a tobacco shred frame matched with the inner wall of the fourth cavity, the tobacco shred frame is made of a breathable net plate, and the upper end of the tobacco shred frame is opened. The tobacco shred frame can be used for containing the smoking materials with fixed shapes, such as the cigarette bullets, and also can be used for containing the smoking materials without fixed shapes, such as the fine tobacco shreds, and at the moment, the tobacco shred frame can prevent the smoking materials without fixed shapes, such as the fine tobacco shreds, from falling into the hollow spiral pipe to block the hollow spiral pipe.

The working principle and the beneficial effects of the scheme are as follows:

taking off the cigarette holder, putting the smoking material with fixed shape such as cigarette bullet into a fourth cavity, installing the cigarette holder, pressing a control button to start a controller, controlling a first electromagnetic valve to open by the controller to enable gas to enter a gas guide tube, controlling an igniter to ignite simultaneously, burning the gas overflowed from the upper end of the gas guide tube under the ignition of the igniter, enabling external air to enter the second cavity from a second pipeline to provide oxygen for burning, enabling high-temperature waste gas generated by burning to enter an inner cavity of the third cavity through a first pipeline and then to be discharged out of the first cavity through a third pipeline, when a user inhales the cigarette holder, enabling air outside a shell to enter a preheating cavity through the second pipeline to cool outer walls of the second cavity and the third cavity, enabling the air to enter a hollow spiral pipeline, performing heat exchange with the high-temperature waste gas flowing through the third cavity when the air passes through the hollow spiral pipeline, enabling the temperature of the sucked air to be increased, the smoking material is heated when the smoking air passes through the inner cavity of the fourth cavity to generate smoking smoke which enters the cigarette holder to be smoked by a user.

Compared with the prior art, the utility model has at least the following beneficial effects:

1. according to the scheme of the utility model, the suction air and the high-temperature waste gas generated during combustion of the fuel gas separately flow through two different paths, and the suction air after heat exchange heats the smoking material to generate the smoking smoke, so that the smoking smoke sucked by a user does not contain the combustion waste gas, the purity of the smoke can be improved to improve the taste of the smoke, and the influence on health caused by the suction of the combustion waste gas by the user is avoided.

2. According to the utility model, the heating mode of the heating element is adopted to heat the smoking material, and compared with the heating mode of the heating element in the prior art, the heating mode of the heating element to the smoking material is more uniform through gas heating, and the heating efficiency is higher.

3. The heat exchange unit structure of the utility model enables the pumped air to flow from bottom to top in the hollow spiral tube, and the high-temperature waste gas to flow from top to bottom in the external space of the spiral tube. The spiral pipe can increase the circulation path of the sucked air, increase the heat exchange area and better perform heat exchange.

4. When the sucked air passes through the preheating cavity, the outer walls of the second cavity and the third cavity can be cooled, the sucked air is preheated, the heat generated by combustion is fully utilized to improve the heat efficiency, and meanwhile, the phenomenon that hands are scalded when the outer cylinder is held due to overhigh temperature can be effectively prevented.

5. The smoke generating device is provided with the motor to accelerate the exhaust of waste gas so as to fully combust the fuel gas, meanwhile, the fuel gas is stably combusted in the second cavity body through the combustion stabilizing cover, and the temperature sensor is arranged to keep the temperature stability of the sucked air, so that the smoke volatilization rate of the smoke generating material is stable, and the consistent taste of the smoke generating material is favorably kept.

Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment 1 of a gas-type air heat exchange flue gas generation device according to the present invention.

Fig. 2 is a schematic structural diagram of an embodiment 2 of the gas-type air heat exchange flue gas generation device of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the gas-fired cigarette comprises a shell 10, a first cavity 20, a preheating cavity 201, a first through hole 202, a second cavity 30, a first pipeline 301, a second pipeline 302, a third cavity 40, a hollow spiral pipe 401, a third pipeline 402, a gas tank 50, a gas guide pipe 501, a first electromagnetic valve 502, a stable combustion cover 503, an igniter 504, an air extracting chamber 60, a motor 601, a fan 602, an air outlet 603, a fourth cavity 70, a tobacco shred frame 701, a smoking material 702, a second through hole 703, a third through hole 704, a temperature sensor 705, an electric appliance chamber 80, a control button 801 and a cigarette holder 90.

Example 1

A gas type air heat exchange smoke generating device comprises a shell 10, wherein a gas tank 50, a preheating mechanism and a smoke generating unit are arranged in the shell 10, the preheating mechanism comprises a closed first cavity 20, a combustion unit and a heat exchange unit are arranged in the first cavity 20, and the gas tank 50 is located below the first cavity 20 and used for storing gas.

The combustion unit comprises a closed second cavity 30 fixedly connected with the first cavity 20, the heat exchange unit comprises a closed third cavity 40 fixedly connected with the first cavity 20, a gap is reserved between the first cavity 20, the second cavity 30 and the third cavity 40 to form a preheating cavity 201, a hollow spiral pipe 401 is arranged in the third cavity 40, the hollow spiral pipe 401 spirally winds around the vertically arranged axis, the lower end of the hollow spiral pipe 401 is communicated with the preheating cavity 201, the heat exchange efficiency is improved for accelerating heat transfer, and the hollow spiral pipe 401 is an assembly made of copper.

The preheating cavity 201 is communicated with the outer space of the shell 10 through the first through hole 202, the upper inner cavity of the second cavity 30 is communicated with the upper inner cavity of the third cavity 40 through the first pipeline 301, the lower inner cavity of the second cavity 30 is communicated with the outer space of the shell 10 through the second pipeline 302, the bottom of the third cavity 40 is provided with the third pipeline 402, the upper end of the third pipeline 402 is communicated with the bottom inner cavity of the third cavity 40, and the lower end of the third pipeline 402 is communicated with the outer space of the first cavity 20.

The smoke generating unit is located above the preheating mechanism, the smoke generating unit comprises a fourth cavity 70 with an upper end open, the upper end of the fourth cavity 70 is fixedly connected with the inner wall of the shell 10 in a sealing manner, a second through hole 703 matched with the upper end of the fourth cavity 70 is formed in the upper end of the shell 10 to enable the inner cavity of the fourth cavity 70 to be communicated with the outer space of the shell 10, a cigarette holder 90 is detachably connected to the second through hole 703, a third through hole 704 is formed in a bottom plate of the fourth cavity 70, the third through hole 704 is arranged to be an inverted cone hole, the lower end of the third through hole 704 is communicated with the upper end of the hollow spiral tube 401, and when heated suction air enters the third through hole 704 from the upper end of the hollow spiral tube 401, the suction air is uniformly dispersed in the fourth cavity 40 to heat the smoking material 702 after diffusion of the inverted cone-shaped third through hole 704.

The gas tank 50 is provided with a gas guide tube 501, the lower end of the gas guide tube 501 is communicated with the inner cavity of the gas tank 50, the upper end of the gas guide tube 501 extends into the second cavity 30, the second cavity 30 is internally and fixedly connected with an igniter 504 corresponding to the upper end of the gas guide tube 501, and the gas guide tube 501 is provided with a first electromagnetic valve 502 for controlling the gas flow in the gas guide tube 501. In order to keep the gas stably burning in the second cavity 30 to provide a stable heating temperature, a stable burning cover 503 is disposed at the upper end of the gas guiding tube 501 to stably release the gas from the upper end of the gas guiding tube 501, so that the gas is stably burnt in the second cavity 30.

In order to keep the temperature of the smoking air for heating the smoking material 702 stable, a temperature sensor 705 is fixedly connected in the third through hole 704, the temperature sensor 705 is electrically connected with the controller, when the temperature sensor 705 detects that the temperature of the heat-exchanged smoking air is lower than the set optimal smoking temperature, the temperature sensor 705 sends a warming signal to the controller, the controller controls the first electromagnetic valve 502 to perform corresponding actions so as to increase the gas flow rate of the gas tank 50 flowing into the second cavity 30 through the gas guide tube 501, and conversely, when the temperature of the smoking air is too high, the controller controls the first electromagnetic valve 502 to perform actions so as to reduce the gas flow rate entering the gas guide tube 501.

An electric appliance chamber 80 is arranged in the casing 10, a rechargeable battery and a controller electrically connected with the rechargeable battery are arranged in the electric appliance chamber 80, a control button 801 for controlling the operation of the controller is arranged on the casing 10, and the igniter 504 and the first electromagnetic valve 502 are electrically connected with the controller.

In order to prevent heat loss, insulating layers, preferably, aluminum foil reflective films are disposed on the inner walls of the first, second, third and fourth cavities 20, 30, 40 and 70.

In order to make the gas burn sufficiently in the second cavity 30 to release heat sufficiently, exhaust of the exhaust gas generated by the gas burning is required to be accelerated, and the exhaust gas is prevented from gathering in the second cavity 30 and affecting the sufficient burning of the gas, an air extraction chamber 60 is arranged in the housing 10, the air extraction chamber 60 is located below the first cavity 20, an air outlet 603 for communicating the inner cavity of the air extraction chamber 60 with the outer space of the housing 10 is arranged at the bottom of the housing 10, the lower end of a third pipeline 402 is communicated with the upper inner cavity of the air extraction chamber 60, a motor 601 is arranged in the air extraction chamber 60, the motor 601 is fixedly connected with the bottom of the first cavity 20, an output shaft of the motor 601 is vertically arranged downwards, a fan 602 for exhausting the gas in the air extraction chamber 60 out of the air extraction chamber 60 through the air outlet 603 is fixedly connected on the output shaft of the motor 601, a controller is electrically connected with the motor 601 for controlling the operation of the motor 601, in order to reduce the volume of the motor 601 and improve the efficiency of the motor 601, the motor 601 is preferably a coreless motor.

Example 2

As shown in fig. 2, the difference from embodiment 1 is that: the tobacco shred frame 701 matched with the inner wall of the fourth cavity 70 is arranged in the fourth cavity 70, the tobacco shred frame 701 is made of a breathable net plate, the upper end of the tobacco shred frame 701 is opened, the tobacco shred frame 701 can be used for containing smoking materials with fixed shapes such as smoke bombs and also can be used for containing smoking materials without fixed shapes such as tobacco shreds in fine crushing, and at the moment, the tobacco shred frame 701 can prevent the smoking materials without fixed shapes such as tobacco shreds in fine crushing from falling into the hollow spiral pipe to block the hollow spiral pipe.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.

Claims (8)

1. The utility model provides a gas type air heat exchange flue gas generating device, includes the shell, its characterized in that: a gas tank, a preheating mechanism and a smoke generating unit are arranged in the shell, the preheating mechanism comprises a closed first cavity, a combustion unit and a heat exchange unit are arranged in the first cavity, and the gas tank is located below the first cavity and used for storing gas;

the combustion unit comprises a closed second cavity fixedly connected with the first cavity, the heat exchange unit comprises a closed third cavity fixedly connected with the first cavity, gaps are left among the first cavity, the second cavity and the third cavity to form a preheating cavity, a hollow spiral pipe is arranged in the third cavity and spirally winds around a vertically arranged axis, the lower end of the hollow spiral pipe is communicated with the preheating cavity, the preheating cavity is communicated with the outer space of the shell through a first through hole, the upper inner cavity of the second cavity is communicated with the upper inner cavity of the third cavity through a first pipeline, the lower inner cavity of the second cavity is communicated with the outer space of the shell through a second pipeline, a third pipeline is arranged at the bottom of the third cavity, the upper end of the third pipeline is communicated with the inner cavity at the bottom of the third cavity, and the lower end of the third pipeline is communicated with the external space of the first cavity;

the smoke generating unit is positioned above the preheating mechanism and comprises a fourth cavity with an opening at the upper end, the upper end of the fourth cavity is fixedly connected with the inner wall of the shell in a sealing manner, a second through hole matched with the upper end of the fourth cavity is formed in the upper end of the shell, so that the inner cavity of the fourth cavity is communicated with the outer space of the shell, a cigarette holder is detachably connected to the second through hole, a third through hole is formed in the bottom plate of the fourth cavity, and the upper end of the hollow spiral tube is communicated with the third through hole;

the gas tank is provided with a gas guide tube, the lower end of the gas guide tube is communicated with the inner cavity of the gas tank, the upper end of the gas guide tube extends into the second cavity, an igniter corresponding to the upper end of the gas guide tube is fixedly connected in the second cavity, and the gas guide tube is provided with a first electromagnetic valve for controlling the gas flow in the gas guide tube;

an electric appliance chamber is arranged in the shell, a rechargeable battery and a controller electrically connected with the rechargeable battery are arranged in the electric appliance chamber, a control button for controlling the controller to operate is arranged on the shell, and the igniter and the first electromagnetic valve are electrically connected with the controller.

2. The gas-fired air heat exchange flue gas generation device according to claim 1, characterized in that: an air extracting chamber is arranged in the shell and is positioned below the first cavity, an air outlet hole for communicating the inner cavity of the air extracting chamber with the outer space of the shell is formed in the bottom of the shell, the lower end of the third pipeline is communicated with the inner cavity of the upper portion of the air extracting chamber, a motor is arranged in the air extracting chamber and is fixedly connected with the bottom of the first cavity, a fan for exhausting the internal air of the air extracting chamber out of the air extracting chamber through the air outlet hole is arranged on an output shaft of the motor, and the controller is electrically connected with the motor and is used for controlling the motor to run.

3. The gas-fired air heat exchange flue gas generation device according to claim 2, characterized in that: the third through hole sets up to the back taper hole, the lower extreme in back taper hole with the upper end intercommunication of cavity spiral pipe.

4. A gas-fired air heat exchange flue gas generation device according to claim 3, characterized in that: and a temperature sensor is arranged in the third through hole and electrically connected with the controller.

5. The gas-fired air heat exchange flue gas generation device according to claim 4, characterized in that: and the upper end of the air duct is provided with a stable combustion cover which enables the fuel gas to be stably released from the upper end of the air duct.

6. The gas-fired air heat exchange flue gas generation device according to claim 5, characterized in that: and a heat reflection layer is arranged on the inner wall of the fourth cavity.

7. The gas-fired air heat exchange flue gas generation device according to claim 6, characterized in that: the hollow helical tube is a component made of copper.

8. The gas-fired air heat exchange flue gas generation device according to any one of claims 1 to 7, characterized in that: and a tobacco shred frame matched with the inner wall of the fourth cavity is arranged in the fourth cavity, the tobacco shred frame is made of a breathable net plate, and the upper end of the tobacco shred frame is opened.

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