阅读说明：本技术 无烟、污染物超低排放的多功能清洁炉具 (Multifunctional clean stove without smoke and pollutant ultralow emission ) 是由 薛虎印 郝强 甄俊平 于 2020-12-11 设计创作，主要内容包括：本发明公开一种无烟、污染物超低排放的多功能清洁炉具,提高了炉具能效,实现了燃烧不冒黑烟、污染物超低排放的目标要求；炉膛固定设置在炉体内腔中部,炉膛的底部与设置在炉体底部的一次风进风口连通,气化燃烧筒竖直插装在炉膛内,且气化燃烧筒的底部与炉膛内部连通,气化燃烧筒的上端设置有燃烧筒二次风口,燃烧筒二次风口与设置在炉体外部进气口连通,炉膛和炉体之间的侧壁夹层之间盘旋设置有换热器,热风道将换热器包裹在内,引风机设置在炉体底部,排气筒设置在炉体的顶部,引风机和排气筒之间通过风管连通,风管与热风道的末端连通,经脱硫脱硝剂处理的烟气沿热风道前进并汇聚到风管,并从排气筒排出。(The invention discloses a multifunctional clean stove without smoke and with ultralow pollutant emission, which improves the energy efficiency of the stove and meets the target requirements of no black smoke emission and ultralow pollutant emission during combustion; the fixed setting of furnace is at furnace body cavity middle part, furnace's bottom and the air intake intercommunication of setting in the furnace body bottom, the vertical cartridge of gasification burner is in furnace, and the bottom and the inside intercommunication of furnace of gasification burner, the upper end of gasification burner is provided with burner secondary air port, burner secondary air port and setting are in the outside air inlet intercommunication of furnace body, it is provided with the heat exchanger to spiral between the lateral wall intermediate layer between furnace and the furnace body, the hot-blast main is including wrapping up the heat exchanger, the draught fan sets up in the furnace body bottom, the aiutage sets up the top at the furnace body, through the tuber pipe intercommunication between draught fan and the aiutage, the terminal intercommunication of tuber pipe and hot-blast main, flue gas through SOx treatment advances and assembles the tuber pipe along the hot-blast main, and discharge.)

1. A multifunctional clean stove without smoke and with ultra-low pollutant emission is characterized by comprising a hearth (1), a gasification combustion cylinder (4), a combustion cylinder secondary air port (5), a primary air inlet (9), an induced draft fan (10), a desulfurization and denitrification agent (11), an exhaust funnel (12), a water inlet (13), a heat exchanger (14), a water outlet (15) and a stove body (16), wherein the stove body (16) is of a hollow tubular structure, the hearth (1) is fixedly arranged in the middle of an inner cavity of the stove body (16), the bottom of the hearth (1) is communicated with the primary air inlet (9) arranged at the bottom of the stove body (16), the primary air inlet (9) is used for providing air required for combustion for coal filled in the hearth (1), a filling opening is arranged on the hearth (1), and a fuel opening is arranged on the stove body (16) corresponding to the filling opening of the hearth (1), coal is added into a hearth (1) through a fuel port and a filling port, a gasification combustion cylinder (4) is vertically inserted into the hearth (1), the bottom of the gasification combustion cylinder (4) is communicated with the inside of the hearth (1), a combustion cylinder secondary air port (5) is arranged on the side wall of the gasification combustion cylinder (4), the combustion cylinder secondary air port (5) is communicated with an air inlet arranged outside a furnace body (16), the combustion cylinder secondary air port (5) is used for providing air required by combustion for coal gasification gas entering the gasification combustion cylinder (4), a desulfurization and denitrification agent (11) is annularly arranged at the top of the hearth (1), and flue gas discharged from the upper end of the gasification combustion cylinder (4) is subjected to desulfurization and denitrification through the desulfurization and denitrification agent (11);

spiral between the lateral wall intermediate layer between furnace (1) and furnace body (16) and be provided with heat exchanger (14), follow heat exchanger (14) trend is provided with the hot-blast main, the hot-blast main is including heat exchanger (14) parcel, the both ends of heat exchanger (14) are provided with water inlet (13) and delivery port (15) respectively, water inlet (13) and delivery port (15) all run through hot-blast main and furnace body (16) and stretch out furnace body (16) outside, draught fan (10) set up in furnace body (16) bottom, aiutage (12) set up the top at furnace body (16), through the tuber pipe intercommunication between draught fan (10) and aiutage (12), the terminal intercommunication of tuber pipe and hot-blast main follows SOx (11) exhaust flue gas advances and assembles the tuber pipe along the hot-blast main to discharge from aiutage (12).

2. The smokeless and pollutant ultra-low emission multifunctional cleaning stove according to claim 1, characterized in that the furnace (1) is provided with a secondary air inlet (8), the side walls of the two sides of the furnace (1) are respectively provided with a left secondary air duct (3) and a right secondary air duct (2), the lower ends of the left secondary air duct (3) and the right secondary air duct (2) are both communicated with the secondary air inlet (8), the left and right sides of the top of the furnace (1) are both provided with a left secondary air return opening (7) and a right secondary air return opening (6), the upper ends of the left secondary air duct (3) and the right secondary air duct (2) are respectively communicated with the left secondary air return opening (7) and the right secondary air return opening (6), and the air discharged from the secondary air inlet (8) is preheated and then discharged into the upper part of the inner cavity of the furnace (1).

3. The smokeless, ultra-low pollutant emission multifunctional cleaning stove according to claim 2, characterized in that the hearth (1) is provided with an interlayer on the bottom side, both sides and top side, and the secondary air inlet (8), the left secondary air duct (3), the right secondary air duct (2), the left secondary air return opening (7) and the right secondary air return opening (6) are communicated through the interlayer.

4. The smokeless, ultra low pollutant emissions multifunctional cleaning oven according to claim 2, characterized in that said combustion bowl overfire air port (5) is in communication with an overfire air inlet (8).

Technical Field

The invention discloses a multifunctional clean stove without smoke and with ultralow pollutant emission, and belongs to the technical field of clean stoves.

Background

The existing civil stove has the disadvantages of unreasonable structural design, insufficient fuel combustion, harmful substance generation and serious resource waste; and current civilian stove generally lacks high-efficient dust removal, desulfurization and denitrification facility, leads to the sulfur dioxide of stove, nitrogen oxide and smoke and dust generally not up to standard.

According to incomplete statistics, the population of people needing heating in winter in China exceeds 7 hundred million, at least 2 hundred million people live in relatively scattered mode, and the fact that the coal-fired small and medium-sized boiler exists for a long time due to the fact that energy structures and economic development in China and the like. As most of small and medium-sized coal-fired boilers are lack of professional management, the problems of unscientific equipment and system design, complex and unstable running condition, chaotic and variable fire coal and the like exist, and the problems of high pollution, low efficiency and more potential safety hazards are very serious.

Through improving the stove efficiency, prepare high-efficient environment-friendly device, the supporting clean moulded coal and biomass briquette fuel of using can realize reducing the coal and replace the coal, improves atmospheric pollutants's emission from the source.

Therefore, how to perfect the stove design, improve the stove energy efficiency, achieve the purposes of no black smoke emission during combustion and no harmful gas emission is the key point of the technical innovation of stove products in future.

Disclosure of Invention

The invention overcomes the defects of the prior art, provides the multifunctional cleaning stove without smoke and ultralow pollutant emission, improves the energy efficiency of the stove, and meets the target requirements of no black smoke emission and no harmful gas emission during combustion.

In order to solve the technical problems, the invention adopts the technical scheme that: a multifunctional clean stove without smoke and ultra-low pollutant emission comprises a hearth, a gasification combustion cylinder, a combustion cylinder secondary air port, a primary air inlet, an induced draft fan, a desulfurization and denitrification agent, an exhaust cylinder, a water inlet, a heat exchanger, a water outlet and a stove body, wherein the stove body is of a hollow cylindrical structure, the hearth is fixedly arranged in the middle of the inner cavity of the stove body, the bottom of the hearth is communicated with the primary air inlet arranged at the bottom of the stove body, the primary air inlet is used for providing air required for combustion for coal filled in the hearth, a filling port is arranged on the hearth, a fuel port is arranged on the stove body corresponding to the filling port of the hearth, the coal is added to the hearth through the fuel port and the filling port, the gasification combustion cylinder is vertically inserted in the hearth, the bottom of the gasification combustion cylinder is communicated with the inside of the hearth, and the combustion cylinder secondary air port is, the secondary air port of the combustion cylinder is communicated with an air inlet arranged outside the furnace body, the secondary air port of the combustion cylinder is used for providing air required by combustion for coal gasified fuel gas entering the gasification combustion cylinder, a desulfurization and denitrification agent is arranged in an annular structure at the top of the hearth, and flue gas discharged from the upper end of the gasification combustion cylinder is subjected to desulfurization and denitrification through the desulfurization and denitrification agent;

spiral between the lateral wall intermediate layer between furnace and the furnace body and be provided with the heat exchanger, follow the heat exchanger trend is provided with the hot air duct, including the hot air duct wraps up the heat exchanger, the both ends of heat exchanger are provided with water inlet and delivery port respectively, water inlet and delivery port all run through hot air duct and furnace body and stretch out the furnace body outside, the draught fan sets up in the furnace body bottom, the aiutage sets up the top at the furnace body, through the tuber pipe intercommunication between draught fan and the aiutage, the terminal intercommunication of tuber pipe and hot air duct follows SOx agent exhaust flue gas advances and assembles the tuber pipe along the hot air duct to discharge from the aiutage.

The secondary air inlet is arranged on the hearth, a left secondary air channel and a right secondary air channel are respectively arranged on the side walls of two sides of the hearth, the lower ends of the left secondary air channel and the right secondary air channel are communicated with the secondary air inlet, a left secondary air return port and a right secondary air return port are respectively arranged on the left side and the right side of the top of the hearth, the upper ends of the left secondary air channel and the right secondary air channel are respectively communicated with the left secondary air return port and the right secondary air return port, and air exhausted from the secondary air inlet is preheated and then exhausted into the upper portion of the inner cavity of the hearth.

The bottom side, the two sides and the top side of the hearth are provided with interlayers, and the secondary air inlet, the left secondary air duct, the right secondary air duct, the left secondary air return opening and the right secondary air return opening are communicated through the interlayers.

And the secondary air inlet of the combustion cylinder is communicated with the secondary air inlet.

Compared with the prior art, the invention has the following beneficial effects.

1) The gasification combustion cylinder is provided with the primary air supply device and the secondary air supply device, so that complete combustion is ensured.

2) The design of the high-efficiency dust removal, desulfurization and denitration device provided by the invention ensures that the coal is not smoked, and the ultralow emission of various pollutants is realized.

3) The jet flow induced draft device arranged in the invention forms negative pressure, so that hot air in the furnace flows from the hot air duct and is exhausted from the exhaust funnel.

4) The invention uses carbon monoxide contained in the flue gas to catalyze and reduce nitrogen oxide.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a sectional view of a furnace according to the present invention.

In the figure: 1 is a hearth, 2 is a right secondary air duct, 3 is a left secondary air duct, 4 is a gasification combustion barrel, 5 is a combustion barrel secondary air inlet, 6 is a right secondary air return inlet, 7 is a left secondary air return inlet, 8 is a secondary air inlet, 9 is a primary air inlet, 10 is an induced draft fan, 11 is a desulfurization and denitrification agent, 12 is an exhaust barrel, 13 is a water inlet, 14 is a heat exchanger, and 15 is a water outlet.

Detailed Description

As shown in fig. 1, fig. 2 and fig. 3, the invention relates to a smokeless and pollutant-discharging multifunctional clean stove, which comprises a hearth 1, a gasification combustion cylinder 4, a combustion cylinder secondary air port 5, a primary air inlet 9, an induced draft fan 10, a desulfurization and denitrification agent 11, an exhaust cylinder 12, a water inlet 13, a heat exchanger 14, a water outlet 15 and a stove body 16, wherein the stove body 16 is of a hollow cylindrical structure, the hearth 1 is fixedly arranged in the middle of an inner cavity of the stove body 16, the bottom of the hearth 1 is communicated with the primary air inlet 9 arranged at the bottom of the stove body 16, the primary air inlet 9 is used for providing air required by combustion for coal filled in the hearth 1, a filling port is arranged on the hearth 1, a fuel port is arranged on the stove body 16 corresponding to the filling port of the hearth 1, coal is added to the hearth 1 through the fuel port and the filling port, the gasification combustion cylinder 4 is vertically inserted into the, the bottom of the gasification combustion cylinder 4 is communicated with the inside of the hearth 1, a combustion cylinder secondary air port 5 is arranged on the side wall of the gasification combustion cylinder 4, the combustion cylinder secondary air port 5 is communicated with an air inlet arranged outside the furnace body 16, the combustion cylinder secondary air port 5 is used for providing air required by combustion for coal gasification gas entering the gasification combustion cylinder 4, a desulfurization and denitrification agent 11 is annularly arranged at the top of the hearth 1, and flue gas discharged from the upper end of the gasification combustion cylinder 4 is subjected to desulfurization and denitrification through the desulfurization and denitrification agent 11;

spiral being provided with heat exchanger 14 between the lateral wall intermediate layer between furnace 1 and the furnace body 16, follow heat exchanger 14 moves towards being provided with the hot-blast main, the hot-blast main is including heat exchanger 14 parcel, the both ends of heat exchanger 14 are provided with water inlet 13 and delivery port 15 respectively, water inlet 13 and delivery port 15 all run through hot-blast main and furnace body 16 and stretch out the 16 outsides of furnace body, draught fan 10 sets up in the 16 bottoms of furnace body, aiutage 12 sets up the top at furnace body 16, through the tuber pipe intercommunication between draught fan 10 and the aiutage 12, the terminal intercommunication of tuber pipe and hot-blast main is followed the flue gas of 11 exhaust of SOx/NOx control agent advances and assembles the tuber pipe along the hot-blast main to discharge from aiutage 12.

The secondary air inlet 8 is arranged on the hearth 1, a left secondary air duct 3 and a right secondary air duct 2 are respectively arranged on the side walls of two sides of the hearth 1, the lower ends of the left secondary air duct 3 and the right secondary air duct 2 are communicated with the secondary air inlet 8, a left secondary air return opening 7 and a right secondary air return opening 6 are respectively arranged on the left side and the right side of the top of the hearth 1, the upper ends of the left secondary air duct 3 and the right secondary air duct 2 are respectively communicated with the left secondary air return opening 7 and the right secondary air return opening 6, and air discharged into the secondary air inlet 8 is preheated and then discharged into the upper portion of the inner cavity of the hearth 1.

The bottom side, the two sides and the top side of the hearth 1 are all provided with interlayers, and the secondary air inlet 8, the left secondary air duct 3, the right secondary air duct 2, the left secondary air return opening 7 and the right secondary air return opening 6 are communicated through the interlayers.

The secondary air inlet 5 of the combustion cylinder is communicated with a secondary air inlet 8, and air is supplied to the secondary air inlet 5 of the combustion cylinder, the left secondary air return opening 7 and the right secondary air return opening 6 through the secondary air inlet 8, so that air required by combustion of the gasification combustion cylinder 4 and the hearth 1 is met.

In the invention, the power-assisted induced draft fan is started when ignition is performed, the induced draft fan is stopped when fire is strong, the rotating speed of the induced draft fan is adjusted according to requirements, and the specific structure of a hot water coil (heat exchanger) part is adjusted according to the manufacturing condition.

The working principle of the invention is as follows: a gasification combustion cylinder 4 is additionally arranged in the hearth 1, the ignited coal is heated to generate coal gas, and a primary air inlet 9 is arranged at the bottom of the hearth 1 and is used for fuel combustion and gasification. The secondary air inlet 8 enters the hearth 1 through the left secondary air duct 4 and the right secondary air duct 2 on the periphery of the hearth for secondary combustion, the combustion port is also provided with a combustion cylinder secondary air inlet 5, after the coal gas is combusted, flames emerge from the gasification combustion cylinder 4, and the fire is high and vigorous. Hot flue gas is introduced into the external heat exchanger 14 of the hearth through the induced draft fan 10 to generate hot water for heating and hot water utilization. The induced air passes through the desulfurization and denitrification agent 11, and sulfur dioxide and nitrogen oxide are removed through chemical reaction, so that the effect of eliminating harmful gases is achieved.

The invention has the following characteristics:

1) the pollutant emission index in the flue gas is low, wherein the flue gas amount is about (100 Nm)³H), smoke emission concentration (34.2 mg/m)³）、SO₂Emission concentration (17.4 mg/m)³）、NO_XEmission concentration (38.7 mg/m)³）；

2) The device adopts an electric heating ignition mode to realize one-key starting;

3) the device does not emit black smoke in the whole process from ignition to normal combustion;

4) the device has high combustion efficiency, and the thermal efficiency can reach more than 85%;

5) the device can realize multiple purposes such as cooking, heating, hot water supply and the like.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.