CN113405259A

CN113405259A - Energy-saving and environment-friendly type gas wall-mounted furnace

Info

Publication number: CN113405259A
Application number: CN202110763835.2A
Authority: CN
Inventors: 王全民
Original assignee: Dezhou Rhine Electric Co ltd
Current assignee: Dezhou Rhine Electric Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-09-17
Anticipated expiration: 2041-07-06
Also published as: CN113405259B

Abstract

The invention discloses an energy-saving and environment-friendly gas wall-mounted furnace which comprises a shell, a placing plate, a transverse plate, a ceramic fiber layer, a constant-temperature heating neutralizing and purifying assembly, a leakage-proof air-suction combustion air-exchange assembly and a sliding detachable fixing assembly, wherein the constant-temperature heating neutralizing and purifying assembly comprises a mixing box, a water inlet pipe, a heating pipe, a water outlet pipe, a polyethylene layer, a vent pipe, a rubber flap, an auxiliary burner, a gas through pipe and a waste gas pipe, the leakage-proof air-suction combustion air-exchange assembly comprises a main burner, a protective body, an air suction pump, an air suction pipe, an exhaust pipe, a grid plate, the gas pipe, an air suction pump, an air inlet pipe and an air outlet pipe, and the sliding detachable fixing assembly comprises a supporting body and a fixing table. The invention belongs to the technical field of household appliances, and particularly relates to an energy-saving and environment-friendly wall-mounted gas furnace which improves the heat energy utilization efficiency, heats at a constant temperature, has a heat preservation effect of a neutralization effect, reduces the influence of waste gas on the air quality, saves energy and reduces the use cost.

Description

Energy-saving and environment-friendly type gas wall-mounted furnace

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to an energy-saving and environment-friendly wall-mounted gas stove.

Background

The wall-mounted gas heating stove has originated in Europe for the earliest time, has been in the past for hundreds of years, and now, because the wall-mounted stove of European lineage has a long development history, the technology is mature, and the quality is good and becomes the pet of the market, but the energy-saving environment-friendly wall-mounted gas stove in the prior art still has the following defects. Current hanging stove is low to thermal availability, and the heat runs off soon, can't keep warm to remaining water in the equipment closing back pipeline, and the hot flue gas that produces in the combustion chamber directly gets rid of the outdoor serious influence that has led to the fact the environment, and the burning heating that goes on in the combustion chamber is not abundant, produces a large amount of carbon monoxide easily, harms the human body, and present installation mostly carries out holistic installation to the hanging stove, and the installation is very inconvenient.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a method for heating the bottom of a pipeline and a transverse plate simultaneously, the transverse plate bottom wall transfers heat generated by combustion into a heat preservation cavity through media around a water inlet pipe, so that the bottom and the periphery of the water inlet pipe are uniformly heated, water stored in a mixing box is preheated, cold water heated in the pipeline is neutralized with preheated water in the mixing box, hot water flows out quickly, the heat preservation effect that the whole water inlet pipe has constant-temperature heating and neutralization functions is realized, the heat preservation layer is matched with media to reduce heat dissipation in the heat preservation cavity, the instant heating effect is achieved, the combustion heating time is reduced, the heat utilization efficiency is improved, waste gas generated during combustion is upwards discharged through a vent pipe, and the waste gas can heat the media in the heat preservation cavity while passing through the vent pipe, the medium is heated inside and outside, the water inlet pipe is uniformly heated, the rubber valve at the end of the vent pipe can adaptively adjust the size of the through hole according to the amount of waste gas generated by combustion, the waste gas passing through the vent pipe enters the purification cavity and is subjected to secondary combustion to combust carbon monoxide in the waste gas to generate carbon dioxide, the influence of the waste gas on the air quality is reduced, the emission standard of safe gas is reached, the problems of gas leakage and insufficient combustion are solved when the bottom is supplied with gas and combusted, in order to prevent the untight connection part, external air continuously enters the recycling air exchange cavity and enters the heating cavity through one-side air suction through the connection part of the gas pipe, the energy-saving environment-friendly gas wall-mounted furnace has the advantages that air is provided for the main burner, combustion of the main burner is facilitated, secondary oxygen supplement is provided for one side of the main burner, excessive carbon monoxide generated due to insufficient oxygen is avoided, energy is saved, and use cost is reduced.

The technical scheme adopted by the invention is as follows: the utility model provides an energy-concerving and environment-protective formula gas hanging stove, includes the casing, places board, diaphragm, ceramic fibre layer, constant temperature heating neutralization purification subassembly, prevents leaking the burning subassembly of induced drafting and can dismantle fixed subassembly, place the board and locate between the casing inside wall, the diaphragm is located between the casing inside wall, the ceramic fibre layer is located the casing inside wall, it has formed the heating chamber to place between board and the diaphragm, it has formed the recovery chamber of changing air to place between board and the casing diapire, the heat preservation chamber has been formed between diaphragm and the ceramic fibre layer, the purification chamber has been formed between ceramic fibre layer and the casing inside wall, constant temperature heating neutralization purification subassembly is located the heat preservation intracavity, prevent leaking the burning subassembly of induced drafting and changing air and locate the heating intracavity, the fixed subassembly is dismantled in the casing lateral wall to slide, constant temperature heating neutralization purification subassembly includes mixing box, the heating device comprises a water inlet pipe, a heating pipe, a water outlet pipe, a polyethylene layer, a vent pipe, a rubber lamella, an auxiliary burner, a gas through pipe and a waste gas pipe, wherein the mixing box is arranged on the upper part of a transverse plate, one end of the water inlet pipe penetrates through a ceramic fiber layer and a shell and is arranged outside the shell, the other end of the water inlet pipe penetrates through the mixing box and is arranged inside the mixing box, the water inlet pipe is arranged in a snake-shaped arrangement manner, the lower end of the water inlet pipe penetrates through the transverse plate and is arranged in a heating cavity, one end of the heating pipe penetrates through the transverse plate and the mixing box and is arranged in the mixing box, one end of the water outlet pipe penetrates through the mixing box and is arranged inside the mixing box, the other end of the water outlet pipe penetrates through the ceramic fiber layer and is arranged outside the shell, the polyethylene layer is filled in the heat preservation cavity, one end of the vent pipe penetrates through the transverse plate and is communicated with the heating cavity, the other end of the vent pipe penetrates through the polyethylene layer and is arranged in the purification cavity together with the ceramic fiber layer, the breather pipe is the symmetry setting, the one end that the diaphragm was kept away from to the breather pipe is located to the rubber lamella, the rubber lamella is cyclic annular range setting, the intermediate position has formed the through-hole after the setting is arranged to the rubber annulus form, the intracavity lateral wall is located to the supplementary combustor, the supplementary combustor is the symmetry setting, gas siphunculus one end is linked together with the supplementary combustor, the casing outside is located to the gas siphunculus other end through the casing, casing upper portion is located to the waste gas pipe, the waste gas pipe is linked together with the casing.

Further, the leakproof induced-draft combustion air exchange assembly comprises a main burner, a protective body, an air pump, an air exhaust pipe, a grid plate, a gas pipe, an air exchange pump, an air inlet pipe and an air outlet pipe, wherein the main burner is arranged at the upper part of the placing plate, the protective body is arranged on the inner side wall of the shell, the air pump is arranged in the protective body, one end of the air exhaust pipe is arranged at the air inlet end of the air pump, the other end of the air exhaust pipe penetrates through the shell and is arranged outside the shell, one end of the air exhaust pipe is arranged at the air outlet end of the air pump, the other end of the air exhaust pipe penetrates through the protective body and is arranged inside the heating cavity, the grid plate is arranged on the side wall of the recovered air exchange cavity, one end, the scavenging pump inlet end is located to the intake pipe, the intake pipe other end is the loudspeaker form setting, the scavenging pump end of giving vent to anger is located to the outlet duct one end, the outlet duct other end runs through places the board and locates heating intracavity portion.

Further, the fixed subassembly can be dismantled in slip includes supporter and fixed station, the casing lateral wall is located to the supporter, the fixed station is equipped with the recess, the supporter slides and sets up inside the recess, the supporter passes through bolted connection with the fixed station.

Further, the transverse plate is made of diamond.

Further, the casing lateral wall is equipped with combustion switch, the casing lateral wall is equipped with purification switch, the casing lateral wall is equipped with the air exhaust switch, the casing lateral wall is equipped with the switch of taking a breath, combustion switch is connected with main burner, purification switch is connected with supplementary burner, the air exhaust switch is connected with the aspiration pump electricity, the switch of taking a breath is connected with the scavenging pump electricity.

After adopting the structure, the invention has the following beneficial effects: the main burner directly heats the bottom of the pipeline and the transverse plate simultaneously, the transverse plate made of diamond divides the interior of the shell into two parts to form a heating cavity and a heat preservation cavity, the bottom wall of the transverse plate transfers heat generated by combustion into the heat preservation cavity through media around the water inlet pipe, so that the bottom of the water inlet pipe and the periphery of the water inlet pipe are uniformly heated, and simultaneously, stored water in the mixing box is preheated, so that cold water heated in the pipeline is neutralized with preheated water in the mixing box, hot water flows out quickly, the heat preservation effect that the whole water inlet pipe has constant-temperature heating and has a neutralization effect is realized, the heat preservation layer is matched with the media to reduce heat dissipation in the heat preservation cavity, the instant heating effect is achieved, the combustion heating time is reduced, the heat utilization efficiency is improved, waste gas generated during combustion is upwards discharged through the vent pipe, and the waste gas can heat the media in the heat preservation cavity while passing through the vent pipe, the medium is heated inside and outside, the water inlet pipe is uniformly heated, the rubber flap at the port of the vent pipe can adaptively adjust the size of the through hole according to the amount of waste gas generated by combustion, backflow can be prevented when the auxiliary burner is combusted, the waste gas passing through the vent pipe enters the purification cavity and can undergo secondary combustion, carbon dioxide is generated by combustion of carbon monoxide in the waste gas, the influence of the waste gas on the air quality is reduced, the emission standard of safety gas is reached, the freshness of the air is improved, the problems of gas leakage and insufficient combustion are reduced when the bottom is supplied with air and combusted, in order to prevent the untight connection, the external air continuously enters the recovery ventilation cavity and enters the heating cavity through one-side air suction through the connection of the gas pipe, air is provided for the main burner, the combustion of the main burner is facilitated, secondary oxygen supplement is provided on one side of the main burner, and excessive carbon monoxide generated due to insufficient oxygen is avoided, the energy saving reduces use cost, and the supporter of casing lateral wall slides in the recess, slides to the fixed position and fixes it with the bolt, installation and dismantlement and convenience.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

FIG. 1 is a schematic view of the overall structure of an energy-saving and environment-friendly wall-mounted gas boiler according to the present invention;

FIG. 2 is a schematic top view of an energy-saving and environment-friendly wall-mounted gas boiler according to the present invention;

fig. 3 is a schematic side view of an energy-saving and environment-friendly wall-mounted gas boiler according to the present invention.

In the drawings: 1. a shell, 2, a placing plate, 3, a transverse plate, 4, a ceramic fiber layer, 5, a constant-temperature heating neutralization purification component, 6, a leakage-proof air suction combustion air exchange component, 7, a sliding detachable fixing component, 8, a heating cavity, 9, a recycling air exchange cavity, 10, a heat preservation cavity, 11, a purification cavity, 12, a mixing box, 13, a water inlet pipe, 14, a heating pipe, 15, a water outlet pipe, 16, a polyethylene layer, 17, a vent pipe, 18, a rubber flap, 19, an auxiliary burner, 20, a gas through pipe, 21, an exhaust pipe, 22, a through hole, 23, a main burner, 24, a protective body, 25, an air pump, 26, an air pump, 27, an air outlet pipe, 28, a grid plate, 29, a gas pipe, 30, an air pump, 31, an air inlet pipe, 32, an air outlet pipe, 33, a support body, 34, a fixing table, 35, a groove, 36, a combustion switch, 37, a, 39. a ventilation switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1-3, an energy-saving and environment-friendly gas wall-hanging furnace comprises a shell 1, a placing plate 2, a transverse plate 3, a ceramic fiber layer 4, a constant-temperature heating neutralization and purification component 5, a leakage-proof air-suction combustion air-exchange component 6 and a sliding detachable fixing component 7, wherein the placing plate 2 is arranged between the inner side walls of the shell 1, the transverse plate 3 is arranged between the inner side walls of the shell 1, the ceramic fiber layer 4 is arranged between the inner side walls of the shell 1, a heating cavity 8 is formed between the placing plate 2 and the transverse plate 3, a recovery air-exchange cavity 9 is formed between the placing plate 2 and the inner bottom wall of the shell 1, an insulation cavity 10 is formed between the transverse plate 3 and the ceramic fiber layer 4, a purification cavity 11 is formed between the ceramic fiber layer 4 and the inner bottom wall of the shell 1, the constant-temperature heating neutralization purification component 5 is arranged in the insulation cavity 10, the leakage-proof air-suction combustion component 6 is arranged in the heating cavity 8, the fixed subassembly 7 can be dismantled in the slip and locate casing 1 lateral wall, the constant temperature is heated and is neutralized purification subassembly 5 includes mixing box 12, inlet tube 13, heating pipe 14, outlet pipe 15, polyethylene layer 16, breather pipe 17, rubber lamella 18, supplementary combustor 19, gas siphunculus 20 and exhaust pipe 21, mixing box 12 is located diaphragm 3 upper portion, inlet tube 13 one end is run through ceramic fibre layer 4 and casing 1 and is located the casing 1 outside, the inlet tube 13 other end runs through mixing box 12 and locates inside mixing box 12, inlet tube 13 is snakelike range setting, the inlet tube 13 lower extreme runs through diaphragm 3 and locates in heating chamber 8, heating pipe 14 one end runs through diaphragm 3 and mixing box 12 and locates in mixing box 12, the heating pipe 14 other end runs through diaphragm 3 and mixing box 12 and locates in mixing box 12, outlet pipe 15 one end runs through mixing box 12 and locates in mixing box 12, the other end of the water outlet pipe 15 penetrates through the ceramic fiber layer 4 and the shell 1 to be arranged outside the shell 1, the polyethylene layer 16 is filled in the heat preservation cavity 10, one end of the vent pipe 17 penetrates through the transverse plate 3 to be communicated with the heating cavity 8, the other end of the vent pipe 17 penetrates through the polyethylene layer 16 and the ceramic fiber layer 4 to be arranged in the purification cavity 11, the vent pipe 17 is symmetrically arranged, the rubber petals 18 are arranged at one end of the vent pipe 17 far away from the transverse plate 3, the rubber petals 18 are annularly arranged, the middle positions of the rubber petals 18 are formed with through holes 22 after being annularly arranged, the auxiliary burner 19 is arranged on the inner side wall of the purification cavity 11, the auxiliary burner 19 is symmetrically arranged, one end of the gas through pipe 20 is communicated with the auxiliary burner 19, the other end of the gas through pipe 20 penetrates through the shell 1 to be arranged outside the shell 1, and the waste gas pipe 21 is arranged on the upper portion of the shell 1, the exhaust pipe 21 communicates with the housing 1.

Wherein, the leakproof induced-draft combustion air exchange assembly 6 comprises a main burner 23, a protective body 24, an air pump 25, an air pumping pipe 26, an exhaust pipe 27, a grid plate 28, a gas pipe 29, an air exchange pump 30, an air inlet pipe 31 and an air outlet pipe 32, the main burner 23 is arranged on the upper part of a placing plate 2, the protective body 24 is arranged on the upper part of the placing plate 2, the protective body 24 is arranged on the inner side wall of a shell 1, the air pumping pump 25 is arranged in the protective body 24, one end of the air pumping pipe 26 is arranged at the air inlet end of the air pumping pump 25, the other end of the air pumping pipe 26 penetrates through the shell 1 and is arranged outside the shell 1, one end of the exhaust pipe 27 is arranged at the air outlet end of the air pumping pump 25, the other end of the exhaust pipe 27 penetrates through the protective body 24 and is arranged inside a heating cavity 8, the grid plate 28 is arranged on the side wall of a recycling air, the scavenging pump 30 is arranged on the bottom wall of the recovered scavenging cavity 9, the air inlet pipe 31 is arranged at the air inlet end of the scavenging pump 30, the other end of the air inlet pipe 31 is arranged in a horn shape, one end of the air outlet pipe 32 is arranged at the air outlet end of the scavenging pump 30, the other end of the air outlet pipe 32 penetrates through the placing plate 2 and is arranged in the heating cavity 8, the sliding detachable fixing component 7 comprises a supporting body 33 and a fixing table 34, the supporting body 33 is arranged on the outer side wall of the shell 1, the fixing table 34 is provided with a groove 35, the supporting body 33 is arranged in the groove 35 in a sliding manner, the supporting body 33 is connected with the fixing table 34 through a bolt, the transverse plate 3 is a transverse plate 3 made of diamond material, the outer side wall of the shell 1 is provided with a combustion switch 36, the outer side, the combustion switch 36 is connected to the main burner 23, the purge switch 37 is connected to the auxiliary burner 19, the suction switch 38 is electrically connected to the suction pump 25, and the ventilation switch 39 is electrically connected to the ventilation pump 30.

When the device is used specifically, the fixed table 34 is fixed on the wall surface, the support body 33 on the outer side wall of the shell 1 slides to a certain position in the groove 35 of the fixed table 34, the support body 33 is fixed on the fixed table 34 through bolts, water is added into the water inlet pipe 13, the combustion switch 36 is pressed, the main burner 23 heats the bottom of the water inlet pipe 13, the heating pipe 14 and the transverse plate 3, the water in the pipe is heated by the water inlet pipe 13, the water in the mixing box 12 is preheated by the heating pipe 14, the heat absorbed by the transverse plate 3 is transferred to the ceramic fiber layer 4 and the polyethylene layer 16 in the heat preservation cavity 10, so that the temperature in the heat preservation cavity 10 is kept higher, the ventilation switch 39 is pressed, the ventilation pump 30 pumps the gas leaked in the recycling ventilation cavity 9 into the heating cavity 8, so that the leaked gas is combusted again, the suction switch 38 is pressed, the suction pump 25 pumps oxygen into the heating cavity 8, make its burning more abundant, press purification switch 37, supplementary combustor 19 will carry out the postcombustion through the exhaust waste gas of breather pipe 17, carbon monoxide among the mist that makes the emission reflects into carbon dioxide, the gas after the purification passes through exhaust pipe 21 and discharges, after the use, close all switches, waste heat in the heating chamber 8 still heats diaphragm 3, diaphragm 3 gives polyethylene layer 16 and inlet tube 13 with the heat transfer, it keeps warm to get water in the inlet tube 13, at this moment, throw away heated boiling water in the mixing box 12, still can keep warm to the water in the mixing box 12, when using next time, the new cold water mixes with what was in the device, hot water can in time flow.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an energy-concerving and environment-protective formula gas hanging stove which characterized in that: the constant-temperature heating neutralization purification component comprises a shell, a placing plate, a transverse plate, a ceramic fiber layer, a constant-temperature heating neutralization purification component, a leakage-proof air-suction combustion air-exchange component and a sliding detachable fixing component, wherein the placing plate is arranged between the inner side walls of the shell, the transverse plate is arranged between the inner side walls of the shell, the ceramic fiber layer is arranged on the inner side wall of the shell, a heating cavity is formed between the placing plate and the transverse plate, a recovery air-exchange cavity is formed between the placing plate and the inner bottom wall of the shell, an insulation cavity is formed between the transverse plate and the ceramic fiber layer, a purification cavity is formed between the ceramic fiber layer and the inner bottom wall of the shell, the constant-temperature heating neutralization purification component is arranged in the insulation cavity, the leakage-proof air-suction combustion air-exchange component is arranged in the heating cavity, the sliding detachable fixing component is arranged on the outer side wall of the shell, and the constant-temperature heating neutralization purification component comprises a mixing box, a water inlet pipe, a heating pipe and a water inlet pipe, The device comprises a water outlet pipe, a polyethylene layer, a vent pipe, a rubber flap, an auxiliary burner, a gas through pipe and a waste gas pipe, wherein the mixing box is arranged on the upper part of a transverse plate, one end of the water inlet pipe penetrates through the ceramic fiber layer and the shell to be arranged outside the shell, the other end of the water inlet pipe penetrates through the mixing box to be arranged inside the mixing box, the water inlet pipe is arranged in a snake-shaped arrangement mode, the lower end of the water inlet pipe penetrates through the transverse plate and the transverse plate to be arranged in the heating cavity, one end of a heating pipe penetrates through the transverse plate and the mixing box to be arranged in the mixing box, one end of a water outlet pipe penetrates through the mixing box to be arranged in the mixing box, the other end of the water outlet pipe penetrates through the ceramic fiber layer and the shell to be arranged outside the shell, the, the breather pipe is the symmetry setting, the one end that the diaphragm was kept away from to the breather pipe is located to the rubber lamella, the rubber lamella is cyclic annular range setting, the intermediate position has formed the through-hole after the setting is arranged to the rubber annulus form, the intracavity lateral wall is located to the supplementary combustor, the supplementary combustor is the symmetry setting, gas siphunculus one end is linked together with the supplementary combustor, the casing outside is located to the gas siphunculus other end through the casing, casing upper portion is located to the waste gas pipe, the waste gas pipe is linked together with the casing.

2. The energy-saving and environment-friendly gas wall-mounted boiler according to claim 1, characterized in that: the leakproof induced-draft combustion and air exchange assembly comprises a main burner, a protective body, an air pump, an air exhaust pipe, an exhaust pipe, a grid plate, a gas pipe, an air exchange pump, an air inlet pipe and an air outlet pipe, wherein the main burner is arranged at the upper part of a placing plate, the protective body is arranged at the upper part of the placing plate, the protective body is arranged on the inner side wall of a shell, the air pump is arranged in the protective body, one end of the air exhaust pipe is arranged at the air inlet end of the air exhaust pump, the other end of the air exhaust pipe penetrates through the shell and is arranged outside the shell, one end of the exhaust pipe is arranged at the air outlet end of the air exhaust pump, the other end of the exhaust pipe penetrates through the protective body and is arranged inside the heating cavity, the grid plate is arranged on the side wall of a recovery air exchange cavity, one end of the gas pipe penetrates through the placing plate and is communicated with the main burner, the other end of the gas pipe penetrates through the grid plate and the shell and is arranged outside the shell, the air exchange pump is arranged at the bottom wall of the recovery air exchange cavity, the air inlet end of the air inlet pipe, the intake pipe other end is the setting of loudspeaker form, scavenging pump end of giving vent to anger is located to outlet duct one end, the outlet duct other end runs through places the board and locates heating intracavity portion.

3. The energy-saving and environment-friendly gas wall-mounted boiler according to claim 1, characterized in that: the detachable sliding fixing assembly comprises a supporting body and a fixing table, the supporting body is arranged on the outer side wall of the shell, a groove is formed in the fixing table, the supporting body is arranged inside the groove in a sliding mode, and the supporting body is connected with the fixing table through bolts.

4. The energy-saving and environment-friendly gas wall-mounted boiler according to claim 1, characterized in that: the transverse plate is made of diamond.

5. The energy-saving and environment-friendly gas wall-mounted boiler according to claim 1, characterized in that: the casing lateral wall is equipped with combustion switch, the casing lateral wall is equipped with purification switch, the casing lateral wall is equipped with the air bleed switch, the casing lateral wall is equipped with the switch of taking a breath, combustion switch is connected with main burner, purification switch is connected with supplementary burner, the air bleed switch is connected with the aspiration pump electricity, the switch of taking a breath is connected with the scavenging pump electricity.