CN2033475U - Double chimney coal economizing stove - Google Patents

Abstract

The utility model relates to a double chimney coal saving stove which is a small-size heating source used for the natural circulation heating of the room, the family cooking and the hot water supply. In order to overcome the defects of difficult fire starting, complicated structure, insufficient residual heat utilization in the prior art, etc., the utility model is additionally provided with a bypass flue [10], on the basis of the original heat water heating stove of water sleeve type, thus, the designed value of the depth of turning the flute is bigger than 250 millimeters, and simultaneously, a heating water return pipe is connected with the water sleeve in the stove through a complete burning area above a stove grate. Therefore, the utility model has the advantages of simple device, easy fire starting and few pollution, etc., and the fume is not easy to back flow into the room. Not only the residual heat utilization is sufficient but also the fume dust content can be reduced and the heat efficiency can be improved by about 5% to 10%.

Description

The twin flue coal-saving stove

The utility model relates to domestic hot water's heating plant, can be used for the Natural Circulation heating in house, the compact heat source of family's cooking and hot water supply.

At present, along with the progressively raising of people's lives, the requirement that improves living environment more and more attracts much attention and payes attention to.Especially in the winter time outside air temperature is high slightly, and the present edge heating zone that still unconditionally adopts central heating, and disperse independently aedicula, one-storey house and room, rural area etc. are installed domestic hot water's heating plant and are improved one of living environment and both economical effective and efficient manner beyond doubt at present.And develop safe and reliablely, and can save the cooking a meal of coal, warm multipurpose furnace again to greatest extent, then be again the key point of domestic hot water's heating plant.In recent years, thisly cook a meal, warm multipurpose furnace is increasing, can be divided into substantially and burn loose two kinds of coal and moulded coals, exert oneself from several thousand kilocalories/hour to several ten thousand kilocalories/hour, be that water-jacket typ adds and turns over the cooking a meal of flue, warm coal stove and adopt maximum in the prior art.This coal stove structure is simple relatively, and efficient is also higher, but this water-jacket typ hot water heating stove exists following deficiency and defective: 1. the duration of ignition is long.This is that exhaust gas temperature is low, the stack draught deficiency because body of heater is cold when on fire.Cause burner hearth oxygen supply deficiency, therefore, not only cause ignition difficulties, flue gas also pours in down a chimney indoor easily.Simultaneously because to turn over the flue degree of depth more shallow, not only UTILIZATION OF VESIDUAL HEAT IN is insufficient to cause flue gas, and dustiness is big.2. system's return pipe enters water jacket above burnt zone, is unfavorable for that the current in the water jacket change, and the waste heat of burnt zone can not divide and fill utilization, thereby has reduced the thermal efficiency.

The purpose of this utility model is at problems of the prior art and defective, is family expenses cooking, and heating, hot water supply provide a kind of twin flue coal-saving stove, and it is not only simple in structure, and cost is low, and is on fire easy, and can further improve the thermal efficiency.

The utility model is achieved in that on original water sleeve type hot water heating stove's basis, sets up a by-pass flue (10), makes the design load of turning over flue (6) degree of depth be equal to or greater than 250 millimeters; Reduce heating water return pipe height simultaneously, heating water return pipe (13) is linked to each other with water jacket (2) by the burning-out zone of fire grate top, utilize area, increase system water circulation pressure head to improve fume afterheat.

Accompanying drawing 1 is structural representation of the present utility model (profile);

Accompanying drawing 2 is a vertical view;

Accompanying drawing 3 is the utility model bitubular type structural representation.

(1)---body of heater wherein, (2)---stove inner water sleeve, (3)---heat-insulation layer, (4)---tile, (5)---fin, (6)---turn over flue, (7)---burnt zone, (8)---fire grate, (9)---ash bucket, (10)---by-pass flue, (11)---bypath valve, (12)---flue collector, (13)---return pipe, (14)---water inlet pipe, (15)---turn over mouth, (16)---chimney.

Describe structure of the present utility model and concrete enforcement in detail below in conjunction with accompanying drawing:

A by-pass flue (10) is set up near the fire door position in top in flue collector (12), links to each other with flue collector by chimney (16).During igniting, open by-pass flue by bypath valve (11), after the moulded coal of fire grate top was lighted, flue gas can directly be discharged rapidly by by-pass flue and without turning over flue.Treat that the coal fire in the burner hearth is gradually prosperous, the water in the water jacket is closed by-pass flue because of after radiation of burner hearth heats up simultaneously, and at this moment, flue gas is flowed through and turned over flue (6) and discharged through chimney (16) by flue collector (12) by turning over mouth (15).Simultaneously, because water temperature raises, hot water proportion alleviates, and the water after being heated can pass through feed pipe (14) and flow into heating system, returns water jacket by return pipe (13) and be heated again behind radiator, realizes Natural Circulation.The heating water return pipe enters in the stove from the burnt zone above the fire grate and links to each other with water jacket, and its vertical range apart from fire grate is below 5 centimeters.

To burn honeycomb briquette, the tile height is that the stove of 36-48 centimetre is an example, and the diameter of by-pass flue can be the 60-100 millimeter, and under general chimney height, turning over the flue degree of depth can be in the scope of 250-350 millimeter.It is the 1.5-2 centimetre that water jacket holds water thickness.For enlarging heat transfer area, can set up fin (5) in the water jacket outside, it highly is 20 millimeter.

Burn the coal that looses if change, its structure is basic identical with the burning honeycomb briquette, and difference only is to be changed into tile and water jacket tapered by cartridge type.

For the big heating system of heating load, this device can be made the bitubular or three cartridge types.Accompanying drawing 3 is the structural representation of bitubular type coal-saving stove, and its return pipe and feed pipe and flue all adopt parallel way, and shell is then made an integral body.

The utility model compared with prior art has following advantage and good effect: 1. owing to set up a by-pass flue, thereby cold because of body of heater when having overcome igniting, the difficulty on fire that the stack draught deficiency causes, flue gas pours in down a chimney indoor defective easily; Test shows that this stove shortens about one and a half hours than existing stove is on fire. 2. turn over the flue degree of depth owing to greatly having increased, fume afterheat can be fully used, and reduce the dustiness in the flue gas, reduced the pollution to environment; 3. this device has reduced heating water return pipe height, makes return pipe pass through the burnt zone of fire grate top, both can increase system water circulation pressure head, is conducive to the naturally circulation of water, can further utilize again the waste heat of burnt zone. Compared with prior art, its total thermal efficiency can improve 5%-10%.

Claims (1)

1, a kind of domestic hot water's coal-fired stove for heating, it is mainly by body of heater, and hearth water sleeve turns over flue, flue, advance, return pipe outlet, tile, ash bucket, compositions such as fire grate, it is characterized in that this device sets up a by-pass flue [10], its design load of turning over flue [6] degree of depth is equal to or greater than 250 millimeters, and the burnt zone of heating water return pipe [13] by the fire grate top links to each other with stove inner water sleeve [2].

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