CN101818911A

CN101818911A - Direct-fired auto-warming biomass gasifier

Info

Publication number: CN101818911A
Application number: CN200910126120A
Authority: CN
Inventors: 沈桀
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-28
Filing date: 2009-02-28
Publication date: 2010-09-01

Abstract

The invention discloses a direct-fired auto-warming biomass gasifier, which comprises a furnace body of an updraught gasifier in the prior art, an ash outlet, a discharge chimney and a fan, and is characterized in that: a cooking range is arranged on the upper part of a hearth and is integrated with the furnace body; an auto-warming pyrolysis combustion cooking range and a closed pot holder are arranged; a fuel gas releasing tube and a fuel gas releasing valve leading to the discharge chimney are arranged on one side of the top part of the hearth; one side of the upper part in the furnace body is provided with a charging hole; and a manually rotated ash dispelling, blanking and air intake device is arranged at the bottom of the hearth. The direct-fired auto-warming biomass gasifier has the advantages that: pipelines and a stove eye are not blocked caused by condensation and deposition any more; thermal efficiency is improved; pungent smell is removed; fuel does not overflow any more when a cover is uncovered to feed materials; indoor air is not polluted; the gasifier is not burnt out and fire is not cut off any more; ash is easily dispelled and the materials fall easily; and normal combustion and gas generation are guaranteed. The direct-fired auto-warming biomass gasifier is more suitable for popularization and application in energy conservation and emission reduction and construction of new rural communities.

Description

Direct-fired auto-warming biomass gasifier

Affiliated technical field

The present invention relates to the agricultural crop straw comprehensive utilization, be with farming, woods, herd discarded living beings are converted into fuel gas by the reaction of limit oxygen combustion and pyrolysis a kind of gasification furnace.Especially updraft type household gasification furnace.

Background technology

At present, updraft type gasification furnace of the prior art is simple in structure because of it, cheap, stalk resource is extensive, because of global concern energy crisis with because of atmosphere polluting problems that agricultural wastes caused such as seasonal crop straw burnings, party and state pays much attention to the development and use of regenerative resource again, encourages and advocate the stalk energy, to alleviate China's energy shortage situation, strive for not only energy-conservation but also environmental protection; But, also, apply thereby restricted it often because of the condensed water spill and leakage causes secondary pollution because gasification furnace of the prior art is handled unclear blocking pipe and kitchen range because of tar; The a large amount of experiments of inventor by for many years, having submitted application number on August 10th, 2008 is 200810210412.2 patent document, has now made breakthrough improvement and raising again on its basis by development test repeatedly.

Summary of the invention

After adopting minute body device to purify more, existing gasification furnace is delivered to kitchen range for burning structures by pipeline for overcoming again, thereby cause combustion gas on the way gradually the cooling make wherein tar and the deficiency of steam condensation deposition blocking pipe and kitchen range, the technical solution adopted in the present invention is: kitchen range directly is arranged at upper furnace, in aggregates with the body of heater combination, make the interior vaporific combustion gas of high temperature of burner hearth need not to export burner hearth and under the hot environment of being cooled off as yet, directly enter the kitchen range burning, reached the purpose of no longer stopping up because of the condensation deposition.

The abundant cracking of tar causes the thermal efficiency lower when burning because of its kitchen range in order to overcome existing gasification furnace, on the kitchen range and on every side the tar along with the burned flame ejection spatters to such an extent that black mark is full of stains or spots, the deficiency that stink is pungent, the technical solution adopted in the present invention is: be provided with from heating up the cracking Burning stove hole, it is that a barrel made from metal material divides tar and moisture being heated up of inside and outside multilayer to be cracked into the burner system of fuel gas, enter its structure of order by combustion gas and can be divided into first road air admission hole → combustion gas intensification cracking room → second road air admission hole → hybrid combustor, kitchen range core position is provided with combustion-supporting (air) blast pipe → air intake intensification chamber → spray hot wind hole → hybrid combustor, show that by testing repeatedly this structure can be cracked into fuel gas with the intensification of the tar in the combustion gas, steam can be cracked into hydrogen, again with heat up after hot blast (combustion air) mixed combustion, combustion gas intensification cracking room and mixed combustion room temperature all reach more than 1000 ℃ when being in normal operating conditions, thoroughly solve the outlet of tar and condensed water, improved the thermal efficiency.

When burning, can produce a part of waste gas and not clean-burning pernicious gas in order to overcome its kitchen range of existing gasification furnace, cause room air to be got dirty and influence health, the technical solution adopted in the present invention is: closed pot frame is set, can select for use metal material (or refractory material) to become the support that is used to shelve frying pan that exceeds range panel of a circle at kitchen range upper end position circle, one side (or many sides) is provided with the toxic emission hole that (or a plurality of) lead to the smoke evacuation tube, when burning, kitchen range frying pan can be held on the closed pot frame, being closed state so between the two can not leak, the pernicious gas that the combustion chamber that forces kitchen range and closed pot frame to be combined into produces when burning drains into outdoor towards the smoke evacuation tube from the toxic emission hole, guarantee that room air is not contaminated.

Cause the deficiency of room air pollution in order to overcome existing gasification furnace when reinforced in the burner hearth outside the combustion gas meeting ejection stove taking off lid, the technical solution adopted in the present invention is: be provided with combustion gas releasing tube and the relief valve that leads to the smoke evacuation tube in roof of the furnace one side, when need are reinforced if open earlier relief valve with burner hearth in combustion gas drain into outdoorly through the smoke evacuation tube, and then take off lid and feed in raw material and just do not polluted.

The invention has the beneficial effects as follows by kitchen range directly is arranged at upper furnace, reached no longer purpose because of condensation deposition blocking pipe and kitchen range eye; Be provided with from the cracking Burning stove hole that heats up can thoroughly solve tar and condensed water pollution problem, improved the thermal efficiency, eliminated pungent smell; Closed pot frame can force pernicious gas to discharge outdoor from the smoke evacuation tube; Be provided with combustion gas releasing tube and the relief valve that leads to smoke evacuation tube in roof of the furnace one side, can solve and take off lid and do not have combustion gas when reinforced and spray, guaranteed that room air is not contaminated, ensured to use safely and do not influence health; By being set at burner hearth bottom, manual rotation drives grey blanking and air-intake device, from then on do not reburn the sky cutoff, can drive grey blanking, guarantee normal combustion aerogenesis easily, eliminated trouble and worry, by improving, make product ripe more, help applying of energy-saving and emission-reduction and new socialist countryside construction.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is that the profile construction schematic diagram is looked on a left side of the present invention.

Fig. 2 is that master of the present invention looks the profile construction schematic diagram.

1. frying pans among the figure, 2. closed pot frame, 3. kitchen range (exterior bowl), 4. hybrid combustor, 5. combustion gas intensification cracking room, 6. adiabator layer, 7. combustion-supporting blast pipe, 8. body of heater 9. manually rotates and drives grey blanking and air-intake device, 10. limit oxygen burning blast pipe, 11. drive rod handgrips, 12. bases, 13. burner hearth, 14. second road air admission holes, 15. kitchen range inner drums, 16. the spray hot wind hole, air intake intensification chambers 17., 18. heat transfer cups, 19. the first road air admission hole, 20. combustion gas releasing tubes, 21. relief valves, 22. steam exhaust port, 23. smoke evacuation tubes, 24. range panels, 25. charge door, 26. rotating shafts, 27. ash holes, 28. kitchen range, 29. kitchen range cores.

The specific embodiment

In the drawings, the top of base (12) is body of heater (8) fixedly, inboard wall of furnace body is made of flame-proof thermal insulation material layer (6), body of heater middle and upper part one side is provided with installs charge door (25), the bottom of burner hearth (13) is provided with manual rotation and drives grey blanking and air-intake device (9), its rotating shaft (26) is passed burner hearth bottom and is connected to drive rod handgrip (11), burner hearth (13) top is provided with kitchen range (28), kitchen range comprises kitchen range exterior bowl (3) and kitchen range inner drum (15), it is connected and fixed with range panel (24) respectively, combustion-supporting blast pipe (7) passes the center that kitchen range core (29) places air intake intensification chamber (17), and put the cup (18) that conducts heat, roof of the furnace one side is provided with combustion gas releasing tube (20) and the relief valve (21) that leads to smoke evacuation tube (23), kitchen range upper end is enclosed into exceeding of a circle and is fixed in closed pot frame (2) on the range panel (24), and the one side is provided with the steam exhaust port (22) that leads to smoke evacuation tube (23).

Claims

1. direct-fired auto-warming biomass gasifier, comprise body of heater, ash hole, smoke evacuation tube, the blower fan of updraft type gasification furnace of the prior art, it is characterized in that: kitchen range is arranged at that the combination of upper furnace and body of heater is in aggregates, heat up cracking Burning stove hole, closed pot frame, roof of the furnace one side is provided with that the combustion gas releasing tube that leads to the smoke evacuation tube and relief valve, body of heater middle and upper part one side are provided with charge door, burner hearth bottom is provided with manual rotation and drives grey blanking and air-intake device certainly.

2. direct-fired auto-warming biomass gasifier according to claim 1, it is characterized in that: the cracking Burning stove hole that heats up certainly is that a barrel made from metal material divides tar and moisture being heated up of inside and outside multilayer to be cracked into the burner system of fuel gas, enter its structure of order by combustion gas and can be divided into first road air admission hole → combustion gas intensification cracking room → second road air admission hole → hybrid combustor, kitchen range core position is provided with combustion-supporting (air) blast pipe → air intake intensification chamber → spray hot wind hole → hybrid combustor.

3. direct-fired auto-warming biomass gasifier according to claim 1, it is characterized in that: closed pot frame should be to be arranged at the kitchen range upper end to enclose into the support that range panel is used to shelve frying pan that exceeds of a circle, and one side (or many sides) is provided with the steam exhaust port that leads to the smoke evacuation tube.

4. direct-fired auto-warming biomass gasifier according to claim 1, it is characterized in that: roof of the furnace one side is provided with combustion gas releasing tube and the relief valve that leads to the smoke evacuation tube, should be to pass a kind of control device that body of heater is guided combustion gas in the stove in the smoke evacuation tube from roof of the furnace (or top).