CN2919031Y

CN2919031Y - Pure smokeless, coal saving type boiler of organic heat carrier

Info

Publication number: CN2919031Y
Application number: CN 200620086304
Authority: CN
Inventors: 王树洲
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-29
Filing date: 2006-06-29
Publication date: 2007-07-04
Anticipated expiration: 2016-06-29

Abstract

The utility model relates to a vertical coal-saving smokeless organic thermal medium boiler, of which the top of the furnace body is a heating area provided with a thermal conduction oil tube in and an suction fan above, as well as the bottom of the furnace body is a coal-burning area provided with a coal-burning apparatus comprising a hearth, a fire grate and a charging hole: the top of the hearth is communicated with a fume burning passage provided with a circular horizontal rotational flow burning area communicated with a hot gas outlet above, a hearth beneath, and a combustion-supporting blast hole following the direction tangent to the rotational flow heading of the circular horizontal rotational flow burning area. The utility model is characterized in simple structure, low cost, easy operation, and thoroughly solves the problem of emitting black smoke during the combustion of the coal by discharging the achromatic, transparent, clean, pollution-free and smokeless combustion gas with the Lingeman blackness of 0.This utility saves the coal resources, increases the thermal efficiency and protects the environment as well as show notable economic efficiency and social benefits.

Description

Pure smokeless, coal saving type boiler of organic heat carrier

Technical field

The utility model relates to a kind of improved pure smokeless, coal saving type boiler of organic heat carrier, belongs to Thermal Equipment.

Background technology

Boiler of organic heat carrier also claims heat-conducting oil furnace, 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 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 boiler of organic heat carrier, can solve coal-fired over-emitting black exhaust problem, saves coal resource, improves the thermal efficiency, the protection environment.

Pure smokeless, coal saving type boiler of organic heat carrier 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 coal-fired district, coal-fired district is fitted with coal-burning installation, coal-burning installation has burner hearth, fire grate and coal filling hole, the top of its burner hearth is communicated with the smoke combustion passage, be provided with circular level rotary flow combustion zone in the smoke combustion passage, be communicated with the high-temperature gas outlet above the circular level rotary flow combustion zone, be communicated with burner hearth below, establish combustion-supporting air port with the eddy flow direction of circular level rotary flow combustion zone is tangent.

Under the effect of the combustion air that enters from fire grate, at high temperature burn in coal seam 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 circular level rotary flow combustion zone together, under the boosting of combustion air, make high-temperature flue gas enter circular level rotary flow combustion zone with the form tangent line of high-speed jet, the result of jet mixes flue gas and combustion air (oxygen), cause fierce burning, form high temperature.Through the clean high-temperature gas that obtains behind the thorough combustion oxidation, drawn by air-introduced machine through outlet, when flowing through the body of heater thermal treatment zone, heat-conducting oil pipes is heated.

Communication passage between circular level rotary flow combustion zone and burner hearth is designed curved shape, and the eddy flow direction of the level rotary flow suitable for reading and circular combustion zone of communication passage is tangent, promotes swirl flow combustion, preferred helical curve wire.The best ovalize of the cross section of communication passage, circle etc. also can be square or rectangle, but the latter is because mechanical angle stress reason is easy to generate fracture.The smoke combustion passage can be made the overall structure of integral type with the cast of unsetting refractory matter, also can sectional making, make the quarl of typing, and during use, directly assemble and get final product.

Set up guiding cone above the high-temperature gas outlet, in order to adapt with the guiding cone shape, the high-temperature gas outlet preferably is the uncovered shape that enlarges gradually.High-temperature gas expansion, eddy flow are risen, allow the heat-conducting oil pipes of body of heater inner rim evenly be heated, avoid heating the dead angle, make the distribution of heat energy and transmit more efficient and rational, this spiral high-temperature gas air-flow has been strengthened heating power transmission performance to a great extent simultaneously, has improved the thermal efficiency.

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%.

In this burning system, to discharge without any flue gas, the waste gas of discharge is colourless, tasteless, transparent, with the naked eye can't see at all, and lingemann blackness has not existed.Saying also of the tradition of high-temperature flue gas falls short of the reality, so we are called the pure smokeless combustion method.

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.

The utility model pure smokeless, coal saving type boiler of organic heat carrier, 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 one example structure schematic diagram.

Fig. 2, coal-burning installation part operating condition principle schematic.

Fig. 3, circular level rotary flow combustion zone typing quarl cross-sectional structure schematic diagram.

Among the figure: 1, ashpit 2 falls, slag notch 3, fire grate 4, burner hearth 5, combustion-supporting air channel 6, spiral communication passage 7, circular level rotary flow combustion zone 8, high-temperature gas outlet 9, bearing support 10, guiding cone 11, the body of heater thermal treatment zone 12, air-introduced machine connects the mouth of pipe 13, heat-conducting oil pipes 14, body of heater 15, high-temperature gas outlet refractory brick 16, swirl flow combustion district refractory brick 17, communication passage refractory brick 18, coal filling hole F1, F2, F3, F4, combustion air.

The specific embodiment

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

As shown in Figure 1, pure smokeless, coal saving type boiler of organic heat carrier described in the utility model, the top of body of heater 14 is the thermal treatment zone 11, be fitted with heat-conducting oil pipes 13 in the body of heater of the thermal treatment zone 11, the top of the thermal treatment zone 11 connects the mouth of pipe 12 by air-introduced machine and connects air-introduced machine, the bottom of body of heater 14 is coal-fired district, coal-fired district is fitted with coal-burning installation, coal-burning installation has burner hearth 4, fire grate 3 and coal filling hole 18, the top of its burner hearth 4 is communicated with the smoke combustion passage, be provided with circular level rotary flow combustion zone 7 in the smoke combustion passage, be communicated with high-temperature gas outlet 8 above the circular level rotary flow combustion zone 7, be communicated with burner hearth 4 below, establish combustion-supporting air port, provide combustion air by combustion-supporting air channel 5 with the eddy flow direction of circular level rotary flow combustion zone 7 is tangent.The communication passage 6 that circular level rotary flow combustion zone 7 and burner hearth 4 are asked is curve-like in the shape of a spiral, and the eddy flow direction of the level rotary flow suitable for reading and circular combustion zone 7 of communication passage 6 is tangent.Guiding cone 10 has been set up by bearing support 9 in the top of high-temperature gas outlet 8, adapts with guiding cone 10 shapes, and high-temperature gas outlet 8 is the uncovered shape that enlarges gradually.

As shown in Figure 2, running is as follows:

Under the effect of the burning wind F3 that enters from fire grate 3, at high temperature burn in coal seam on the fire grate 3, a large amount of tar steam, carbon monoxide, black smoke and other hydrocarbon gas formed by small carbon granules, form unburnt product, pour in circular level rotary flow combustion zone 7 together, under the combustion air F4 boosting that injects in combustion-supporting air channel 5, make high-temperature flue gas enter circular level rotary flow combustion zone 7 with the form tangent line of high-speed jet, the result of jet mixes flue gas and combustion air (oxygen), cause fierce burning, form high temperature.Through the clean high-temperature gas that obtains behind the thorough combustion oxidation, export 8 places at high-temperature gas, under the guide effect of guiding cone 10, make the high-temperature gas expansion, eddy flow rises, allow the heat-conducting oil pipes 13 of body of heater inner rim evenly be heated, final high temperature gas is drawn by air-introduced machine through high-temperature gas outlet 8, when flowing through the body of heater thermal treatment zone 11, with heat-conducting oil pipes 13 heating, conduction oil in the heat-conducting oil pipes 13 is heated, and provides power that heat energy is sent in streams to a place with on the hot equipment by the work oil pump, and the conduction oil after the release heat returns boiler of organic heat carrier by oil returning tube, reheated, formed 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.

Claims

1, a kind of pure smokeless, coal saving type boiler of organic heat carrier, 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 coal-fired district, coal-fired district is fitted with coal-burning installation, coal-burning installation has burner hearth, fire grate and coal filling hole, the top that it is characterized in that burner hearth is communicated with the smoke combustion passage, be provided with circular level rotary flow combustion zone in the smoke combustion passage, be communicated with the high-temperature gas outlet above the circular level rotary flow combustion zone, be communicated with burner hearth below, establish combustion-supporting air port with the eddy flow direction of circular level rotary flow combustion zone is tangent.

2, pure smokeless, coal saving type boiler of organic heat carrier according to claim 1 is characterized in that the curved shape of communication passage between circular level rotary flow combustion zone and burner hearth, and the eddy flow direction of the level rotary flow suitable for reading and circular combustion zone of communication passage is tangent.

3, pure smokeless, coal saving type boiler of organic heat carrier according to claim 2 is characterized in that the communication passage curve-like in the shape of a spiral between circular level rotary flow combustion zone and burner hearth.

4,, it is characterized in that guiding cone has been set up in the top of high-temperature gas outlet according to claim 1,2 or 3 described pure smokeless, coal saving type boiler of organic heat carrier.

5, pure smokeless, coal saving type boiler of organic heat carrier according to claim 4 is characterized in that adapting with the guiding cone shape, and the high-temperature gas outlet is the uncovered shape that enlarges gradually.