CN2082369U

CN2082369U - Coal combustion gas stoves

Info

Publication number: CN2082369U
Application number: CN 90222717
Authority: CN
Inventors: 张庆柳
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-25
Filing date: 1990-10-25
Publication date: 1991-08-07

Abstract

The utility model relates to a novel coal gas stove. An opening arranged on the lower end of a gas tube is led out from the lower part of a stove body, and the upper end of the gas tube is connected with a burner nozzle. A high-temperature fire layer is formed on the lower part of the stove chamber by the air blow combustion supporting of a blower fan. The water vapor can be ejected from the outlet of a metal coil arranged under a stove grate. The process of the mixed coal gas production of oxidation, reduction, destructive distillation, desiccation, etc. can be carried out from the upper end to the lower end. Because the upper part of the stove chamber is closed, the various produced mixed coal gas is pressed back to the opening arranged on the lower part of the gas tube which has high temperature and is arranged on the lower middle part of the stove chamber to discharge and combust at the burner nozzle connected to the opening arranged on the upper end of the gas tube. The utility model has the advantages of simple and delicate structure, convenient operation, low cost, energy saving, and environmental pollution prevention.

Description

Coal combustion gas stoves

The invention belongs to a kind of cooking stove that utilizes the solid coal-fired gasification to produce the mixed gas burning.

At present domestic and international designed coal-fired gas furnace, general gas exit is all drawn burning in upper furnace, the application number of announcing as Chinese patent bulletin is 89211803.2 automatic control water-gas generators, application number is 89212659.0 a combination Evaporation stove etc., though also producing coal gas, above-mentioned cooking stove burns, but burner hearth internal upper part temperature reduces continuously the aerogenesis burning during because of coal, and efficient is lower in addition, and the use of cooking stove is restricted.

The objective of the invention is in order to provide a kind of equipment simply ingenious, the coal-fired mixed gas that can produce the high caloic of high-quality can keep continuous burning again, and is easy to use, and low cost product, the coal-burning gas stove that exhaust smoke level is extremely low.

The operation principle of coal-burning gas stove of the present invention is to utilize fire coal combustion-supporting by the blower fan air blast in burner hearth, to form a high-temp combustion layer in lower furnace portion this moment, it is the oxide layer of general indication, it under the oxide layer grieshoch, be followed successively by reducing zone on the oxide layer, the destructive distillation layer, drying layer, this coal-burning gas stove is closed owing to upper furnace when working, and the lower ending opening of coal gas wireway links at the middle and lower part and the burner hearth of body of heater, the metal coil pipe lower end outlet ejection of water vapour below fire grate like this, produces the oxidation of mixed gas, reduction, destructive distillation, processes such as drying are from bottom to top carried out, because upper furnace is closed, the various mists that produced will be pushed back very high exit, the wireway lower end discharge of burner hearth middle and lower part temperature and burn with the burner place of wireway upper end binding.Because exit, wireway lower end temperature is very high, extremely favourable water vapour decomposes generation hydrogen and carbon monoxide, so improved the quality of coal gas, the coal gas calorific capacity is increased.This coal-burning gas stove can not influence near the temperature the wireway lower ending opening of burner hearth middle and lower part during by the top coal, therefore can obtain the coal-fired mixed gas of high-quality continuous burning.

Further specify formation of the present invention below in conjunction with Figure of description: Figure of description is the principle assumption diagram of coal-burning gas stove, in theory structure shown in the accompanying drawing, the inner burner hearth (12) of body of heater (13) is a garden barrel shaped structure, wireway (21) lower ending opening is in the middle and lower part of burner hearth (12), the upper end links with burner (2), metal coil pipe (16) coils outside the bottom of body of heater (13), metal coil pipe (16) upper end open is sealed by sealing-plug (11), the syringe of water droplet through inserting sealing-plug (11) splashes into syringe needle (10) and produces water vapour in the metal coil pipe (16), water vapour is by the metal coil pipe lower ending opening ejection of drawing below fire grate, the storage-type coal filling hole sealing ring (5) of band aqua storage tank is loaded on burner hearth (12) top, the formula of catchmenting coal lid (7) is inner to be taper or hemispherical, and the part moisture content that is beneficial to will be evaporated when water content is too much in the fire coal is collected in the aqua storage tank.During the work of this coal-burning gas stove, coal-fired in burner hearth (12) internal combustion, fresh air mixes through fire grate (19) with the water vapour that is sprayed by metal coil pipe (16) lower ending opening and sends into burner hearth (12) when starting blower fan (20), make the coal-fired high-temp combustion layer that forms in burner hearth (12) bottom, because wireway (21) lower ending opening is in burner hearth (12) middle and lower part, like this, produce the oxidation of mixed gas, reduction, destructive distillation, processes such as drying are from bottom to top carried out, because upper furnace is closed, makes various mists be pushed back very high wireway (21) the lower ending opening place discharge of burner hearth (12) middle and lower part temperature and locate burning at the burner (2) of wireway (21) upper end open binding.

The present invention compares with existing coal-fired gas furnace, it is ingenious simple to have structure, can produce the direct continuous burning of mixed gas of the high caloic of high-quality continuously, and this coal-burning gas stove is because of directly getting gas from high temperature position, thereby can be well with the whole gasification, and combustions of fire coal, greatly improved the utilization rate of the energy, saved coal widely, had easy to use compared with common cooking stove, structure is ingenious simple, cost is low, energy savings, antipollution positive role.

Embodiments of the invention are as shown in drawings: body of heater among the figure (13) is made by refractory material, wireway (21) can be made one with body of heater (13), wireway (21) lower ending opening is in burner hearth (12) position, middle and lower part, the upper end links with burner (2), the coal gas of burner is controlled by butterfly valve (3), metal coil pipe (16) is inserted into sealing-plug (11) sealing of syringe with syringe needle (10) at body of heater (13) bottom outer disc around the back upper end open, lower ending opening is drawn below fire grate (19), and the heat-insulation layer (14) between body of heater (13) and the shell (15) is filled with the insulation material crushed crude pearlite.Water container (8), pan bracket (4) is loaded on the panel (1), by sealing valve (9), syringe splashes into the water of metal coil pipe (16) with syringe needle (10) control, Dust Storage Room (17) one sides are equipped with blower fan (20), shoot door (18) is equipped with in the front, exhaust smoke valve (6) is loaded on burner hearth (12) top, generally seal to use when opening blower fan behind the fire next time and earlier exhaust smoke valve (6) is opened for a moment, exhaust smoke valve (6) can be closed after waiting to produce coal gas, can locate with match coal gas to be lighted use in burner (2) behind the opened butterfly valve (3), this coal-burning gas stove also can use for the coal gas that burns simultaneously with two wireways of fashionable dress and two pairs of burners that are attached thereto at the right and left of body of heater (13).

Claims

1, a kind of coal-burning gas stove, it is characterized in that it by body of heater (13) wireway (21), burner (2), butterfly valve (3), storage-type coal filling hole sealing ring (5), the formula of catchmenting coal flap (7), exhaust smoke valve (6), metal coil pipe (16), sealing-plug (11), syringe syringe needle (10), sealing valve (9), water container (8), pot frame (4), panel (1), heat-insulation layer (14), shell (15), Dust Storage Room (17), shoot door (16), blower fan (17) constitutes, and wireway (21) lower ending opening links at the position, middle and lower part and the burner hearth (12) of body of heater (13).

2, as the described coal-burning gas stove of claim (1), it is characterized in that metal coil pipe (16) upper end open by inserting sealing-plug (11) sealing of syringe with syringe needle (10), lower ending opening is by drawing under the fire grate (19).

3,, it is characterized in that storage-type coal filling hole sealing ring (5) is equipped with at the body of heater top and the formula coal flap (7) that catchments as the described coal-burning gas stove of claim (1).