CN2921599Y

CN2921599Y - Pure smokeless coal-saving external firing internal vortex, heat-conducting oil furnace

Info

Publication number: CN2921599Y
Application number: CN 200620086303
Authority: CN
Inventors: 王树洲
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-29
Filing date: 2006-06-29
Publication date: 2007-07-11
Anticipated expiration: 2016-06-29

Abstract

The utility model relates to a pure smokeless coal-saving external firing internal vortex, heat-conducting oil furnace. Heating region is at the upper part of the furnace body, and a heat-conducting oil tube is arranged at the heating region, and the top of the heating region is provided with a draft fan, and the lower part of the furnace body is coal combusting region, and the coal combusting region is provided with a coal combusting device which comprises a coal burning device outside the furnace and a vortex burning device inside the furnace, and the coal burning device is provided with a coal burn hearth, a grate, and a coal filling port, and an outlet of flue gas is arranged behind the coal burning hearth, while the vortex burning device is provided with a vortex hearth, and the cross section of vortex hearth is circular, and an outlet high temperature gas is arranged above the vortex hearth, and an wind inlet is arranged under the vortex hearth, and an flue gas inlet is arranged at sides of the vortex hearth. The flue gas inlet of the vortex hearth is in tangency with vortex direction of the vortex hearth and is suitable with the flue gas inlet, and a vortex combustion-supporting wind inlet is arranged beside the flue gas inlet, and the flue gas outlet is interconnected with the flue gas inlet of the vortex hearth. The utility model is not only saving the coal resource and improving the thermal efficiency, but also protecting the environment.

Description

Pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow

Technical field

The utility model relates to a kind of improved pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow, belongs to Thermal Equipment.

Background technology

Heat-conducting oil furnace belongs to boiler of organic heat carrier, is a kind of novel industrial boiler that just develops rise recent years, because volume is little, installs and flexible arrangement, and operating cost is low, receives praises from customers, and market prospects are wide.

Boiler of organic heat carrier is fuel with the fire coal, with the conduction oil is medium, utilizes oil circulating pump to force conduction oil to carry out the liquid phase circulation, and heat energy is flowed to the hot equipment of using by pipeline, conduction oil after overheated transmission cooling is got back to heating furnace by Returning pipe again and is reheated, and forms closed cycle.

Owing to use oil as heat transfer medium, can under lower pressure, obtain higher operating temperature (about 300 ℃), can control temperature accurately, need not water resource and water treatment facilities, service condition there is not harsh demand, can accurately control temperature, and simple structure, the maintenance and move very convenient, be a kind of safety coefficient than higher heating equipment, be widely used in industries such as weaving, printing and dyeing, food processing, paint coating, chemical industry equipment, materials for construction, artificial leather, wood-based plate, papermaking, timber production.

Boiler of organic heat carrier is the same with common coal combustion equipment, the flammable effective ingredient in the bituminous coal---fugitive constituent (accounting for 30%-35%), almost to arrange to atmosphere with the form of black smoke all, and environmental pollution and energy waste are very serious.Burn boiler of organic heat carrier for vertical hand, it all is the less product of power ratio, but market capacity is but very big, the kind model is also a lot, between the equipment contrast that each enterprise produces some difference are arranged all, combustion power generally (also claims 0.125-2.8MW) between 125KW-2800KW, the former coal consumption is 1,5 ton/24 hours, and the latter's coal consumption is 13-15 ton/24 hour (calculating by workman's three or eight systems of going to work).Coal-fired over-emitting black exhaust problem is quite serious, and the coal resource waste also is quite surprising.

The utility model content

The purpose of this utility model is to provide a kind of improved pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow, can solve coal-fired over-emitting black exhaust problem, saves coal resource, improves the thermal efficiency, the protection environment.

Pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow described in the utility model, the top of body of heater is the thermal treatment zone, be fitted with heat-conducting oil pipes in the body of heater of the thermal treatment zone, the top of the thermal treatment zone is provided with air-introduced machine, the bottom of body of heater is the fire coal district, and coal-fired district is fitted with coal-burning installation, and its coal-burning installation comprises coal fired combustion and the interior cyclone burner of body of heater that body of heater is outer, coal fired combustion has coal-fired furnace cavity, fire grate and coal filling hole, and there is exhanst gas outlet at the rear portion of coal-fired furnace cavity; Cyclone burner has the rounded vortex furnace of cross section, the high-temperature gas outlet is arranged above the vortex furnace, air inlet is arranged below, there is gas approach the side, the eddy flow direction of the gas approach of vortex furnace and vortex furnace is tangent, adapt with gas approach, be provided with the combustion-supporting air port of eddy flow, the exhanst gas outlet of coal-fired furnace cavity and the butt joint of the gas approach of vortex furnace in other cooperation of the side of gas approach.

Air-introduced machine makes and forms negative pressure in the body of heater, in coal fired combustion, the combustion air that enters from fire grate promotes burning coal-fired on the fire grate, a large amount of tar steam, carbon monoxide, black smoke and other hydrocarbon gas formed by small carbon granules, form unburnt product, pour in vortex furnace from exhanst gas outlet together, under the boosting of combustion air, the result of eddy flow mixes flue gas and combustion air (oxygen), cause fierce burning, form high temperature, burn-off rate reaches 100%.Through the clean high-temperature gas that obtains behind the thorough combustion oxidation, rise operation on while rotate, drawn by air-introduced machine through outlet, when flowing through the body of heater thermal treatment zone, heat-conducting oil pipes is heated, this thermal current that has been reinforced has strengthened heat-transfer effect, has improved the thermal efficiency.As required, combustion-supporting air port also can distribute be provided with several.

The utility model makes the whole oxidations of the fugitive constituent of shared composition 30%-35% in the bituminous coal (forming product is the dry saturated steam of carbon dioxide and water) become heat energy, realizes 100% coal-fired burning, and economizing on coal reaches 30%-35%.Vortex furnace resembles cyclone dust collectors, the swirl flow combustion that black smoke is burned, and the incombustibility dust of wherein carrying secretly falls because of the gravity effect, falls through air inlet,, is conveniently focused in the ashpit of bottom by centralized collection.

In this burning system, discharge without any flue gas, the waste gas of discharging is colourless, tasteless, transparent, with the naked eye can't see, lingemann blackness has not existed at all, and coal fired combustion is positioned at outside the body of heater again, finish the solid burning of coal at this, vortex furnace is positioned at body of heater, finishes the thorough burning of flue gas at this, so be called pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow.

Clean clean red-hot air-flow and in the thermal treatment zone of body of heater, carry out heat exchange with heat-conducting oil pipes, the conduction oil of heat-conducting oil pipes is heated, provide power that heat energy is sent in streams to a place with on the hot equipment by the work oil pump, conduction oil after the release heat returns boiler of organic heat carrier by oil returning tube, reheated, formed closed cycle.

In the utility model:

The combustion-supporting air port of eddy flow places the inboard of gas approach, and the formation of the eddy flow of being convenient to burn promotes fully burning.

For some large-scale heat-conducting oil furnaces, can consider to increase a coal fired combustion, make two coal fired combustions be distributed in the periphery of vortex furnace, preferably be symmetrically distributed easy smooth combustion operating mode, operation also easy to install and use.

Coal fired combustion can be coal-fired right the device that is fit to arbitrarily, as long as the solid fire coal can be fired into flue gas, gets final product for vortex furnace provides the flue gas of further burning.Divide from fire grate, common having is fixed, movable, movable in the middle of, have again oscillatory type with rock type, or the like; Divide from body, microscler again, square and circle, or the like.

The utility model pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow, simple in structure, cheap; implement easily; can directly on existing boiler of organic heat carrier, improve, thoroughly solve coal-fired over-emitting black exhaust problem, the waste gas water white transparency of discharge, clean, pollution-free; reached pure smokeless effect; lingemann blackness is 0, has both saved coal resource, has improved the thermal efficiency; protected environment again, economic benefit and obvious social benefit.

Description of drawings

Fig. 1, the utility model embodiment 1 structural representation.

A-A cross-sectional structure schematic diagram among Fig. 2, Fig. 1.

Fig. 3, operating condition principle schematic.

Fig. 4, the utility model embodiment 2 structural representations.

Fig. 5, the utility model embodiment 3 structural representations.

Among the figure: 1, air-introduced machine connects the mouth of pipe 2, the body of heater thermal treatment zone 3, body of heater 4, heat-conducting oil pipes 5, high-temperature gas outlet 6, vortex furnace 7, cyclone burner 8, air inlet 9, shoot door 10, ashpit 11, slag notch 12, ashpit 13, fire grate 14, coal filling hole 15, coal fired combustion 16, burner hearth 17, exhanst gas outlet 18, combustion-supporting air port 19, gas approach 20, shoot door 21, combustion-supporting air channel 22, coal fired combustion 23, cyclone burner 24, coal fired combustion 25, shoot door 26, cyclone burner 27, combustion-supporting air channel 28, gas approach 29, exhanst gas outlet 30, coal fired combustion 31, fire grate 32, coal filling hole F1, F2, F3, F4, F5, F6, F7, combustion air.

The specific embodiment

Below in conjunction with the embodiment accompanying drawing the utility model is further described.

As shown in Figure 1 and Figure 2, pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow described in the utility model, the top of body of heater 3 is the thermal treatment zone 2, be fitted with heat-conducting oil pipes 4 in the body of heater of the thermal treatment zone 2, the top of the thermal treatment zone 2 connects the mouth of pipe 1 by air-introduced machine and connects air-introduced machine, the bottom of body of heater 3 is coal-fired district, coal-fired district is fitted with coal-burning installation, its coal-burning installation comprises coal fired combustion 15 and the interior cyclone burner 7 of body of heater that body of heater is outer, coal fired combustion 15 has coal-fired furnace cavity 16, fire grate 13 and coal filling hole 14, and there is exhanst gas outlet 17 at the rear portion of coal-fired furnace cavity 16; Cyclone burner 7 has the rounded vortex furnace of cross section 6, high-temperature gas outlet 5 is arranged above the vortex furnace 6, air inlet 8 is arranged below, there is gas approach 19 side, the gas approach 19 of vortex furnace 6 is tangent with the eddy flow direction of vortex furnace, adapt with gas approach 19, cooperate in the inboard of gas approach 19 to be provided with the combustion-supporting air port 18 of eddy flow, the exhanst gas outlet 17 of coal-fired furnace cavity and 19 butt joints of the gas approach of vortex furnace.

As shown in Figure 3, running is as follows:

Air-introduced machine makes and forms negative pressure in the body of heater, impels the flue gas in the coal fired combustion to introduce vortex furnace 6.In coal fired combustion, the combustion air F1 that enters from fire grate 13 promotes burning coal-fired on the fire grate 13, a large amount of tar steam, carbon monoxide, black smoke and other hydrocarbon gas formed by small carbon granules, form unburnt product, pour in the vortex furnace 6 from exhanst gas outlet 17 together, under the boosting of combustion air F4, the result of eddy flow mixes flue gas and combustion air, causes fiercely burning, forms high temperature.Through the clean high-temperature gas that obtains behind the thorough combustion oxidation, rise operation on while rotating, drawn by air-introduced machine through high-temperature gas outlet 5, when flowing through the body of heater thermal treatment zone 2, with heat-conducting oil pipes 4 heating, the conduction oil in the heat-conducting oil pipes 4 is heated, provide power that heat energy is sent in streams to a place with on the hot equipment by the work oil pump, conduction oil after the release heat returns boiler of organic heat carrier by oil returning tube, is reheated, and forms closed cycle.

In the utility model, cloth wind box can be passed through in each combustion-supporting air channel, realizes that as required cloth wind distributes, and provides cloth pneumatic power by same power source, simplifies auxiliary equipment.

Air feed system can be equipped with the automation frequency-changing control system, realizes automation mechanized operation.Mode as the available frequency control of adjusting of wind supply quantity solves, that is changes the method control wind supply quantity of the rotating speed of blower fan by the frequency that changes fan power.Utilize flue gas sensor (the industrial electronic retail department all has commercially available), as zirconium dioxide flue gas sensor, it presents " gas sensitive effect " to carbon monoxide, as long as it is exactly anoxic that flue gas is arranged, as long as anoxic just certainly leads to carbon monoxide, so the content of detection CO gas how much, also just directly reflected " air distribution coefficient " and the combustion conditions of combustion apparatus inside.The content of CO gas is become on the voltage signal input terminal that voltage signal is input to frequency converter, can utilize the voltage signal controlled frequency to change, the frequency conversion out-put supply is exactly the power supply of air blast.

As shown in Figure 4, set up a coal fired combustion, two coal fired combustions 22,24 are arranged, be symmetrically distributed in the periphery of vortex furnace, other is identical with embodiment 1.

As shown in Figure 5, change coal fired combustion into circular configuration, other is identical with embodiment 1.

Claims

1, a kind of pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow, the top of body of heater is the thermal treatment zone, be fitted with heat-conducting oil pipes in the body of heater of the thermal treatment zone, the top of the thermal treatment zone is provided with air-introduced machine, the bottom of body of heater is the fire coal district, and coal-fired district is fitted with coal-burning installation, it is characterized in that coal fired combustion and the interior cyclone burner of body of heater that coal-burning installation comprises that body of heater is outer, coal fired combustion has coal-fired furnace cavity, fire grate and coal filling hole, and there is exhanst gas outlet at the rear portion of coal-fired furnace cavity; Cyclone burner has the rounded vortex furnace of cross section, the high-temperature gas outlet is arranged above the vortex furnace, air inlet is arranged below, there is gas approach the side, the eddy flow direction of the gas approach of vortex furnace and vortex furnace is tangent, adapt with gas approach, be provided with the combustion-supporting air port of eddy flow, the exhanst gas outlet of coal-fired furnace cavity and the butt joint of the gas approach of vortex furnace in other cooperation of the side of gas approach.

2, pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow according to claim 1 is characterized in that the combustion-supporting air port of eddy flow places the inboard of gas approach.

3, pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow according to claim 1 and 2 is characterized in that coal fired combustion has two, is distributed in the periphery of vortex furnace.

4, pure smokeless, coal saving type heat transfer oil stove with external combustion and inner rotational flow according to claim 3 is characterized in that two coal fired combustions are symmetrically distributed at the periphery of vortex furnace.