CN2243026Y - Heat-exchanging type coal stove for cooking and heating - Google Patents

Abstract

The utility model relates to a heat exchange type coal stove with horizontal annular labyrinth fins for cooking and heating, belonging to the miniature heat source which can be used for heating in the unit and the dwelling house, cooking in the household, and the supply of the hot water. The utility model is characterized in that on the basis of the existing water jacket type coal stove for cooking and heating, the upper side of the inner wall of a water jacket which is arranged in the combustion region with high temperature flames is horizontally provided with annular labyrinth type heat exchange fins, and therefore, the mixed disturbance of the flue gas is strengthened, which causes the combusted high temperature flue gas to carry out the sufficient heat exchange in the annular labyrinth type fins backwards and forwards. Therefore, the heat transfer is strengthened further, thermal efficiency of the coal is enhanced, and the defects of the stagnation phenomenon of the high temperature flue gas of the upper and the lower ends of the strengthening hot exchange region and the bad cooking effect are overcome. The utility model has the advantages of convenient operation, little pollution, quick ignition, etc.

Description

Horizontal annular labyrinth fin heat exchange type cooking heating coal furnace

The utility model relates to a kind ofly makes the heat power equipment of thermal source, particularly a kind of family expenses cooking, heating coal furnace with coal.Can be used as the heating of rural area and city dweller's dwelling house, unit, the compact heat source of family's cooking and hot water supply.

At present, cooking, heating coal furnace for household use in the prior art are increasing, and mostly adopt the heating of water-jacket typ Natural Circulation.It is to realize heat exchange by means of the heat exchange fin on the water jacket.Series of advantages such as that though this kind type of furnace has is easy to operate, it is little to pollute, good looking appearance, the speed of getting angry are fast, multi-use, but because heat exchanger fin mostly adopts and is arranged vertically, be that fin is all consistent with the flame ascent direction, so form in line phenomenon easily, thereby cause the heat exchange of hot flue gas and fin insufficient, this has just influenced the heat exchange amount greatly.For overcoming this defective, Chinese utility model patent 87216128 and 90,200,056 two kind of residential coal combustion heating stove adopt S shape and V-arrangement heat exchange fin respectively, though increased the disturbance of hot flue gas to a certain extent, its heat exchange efficiency increases.But, therefore fail fundamentally to solve the problem of in line phenomenon and augmentation of heat transfer because its heat exchange fin still adopts vertical layout.Wherein also there is the high-temperature flue gas stagnation region in 8721612 patents at the upper/lower terminal in enhanced heat exchange district, and the heat exchanging effect is very unfavorable.For above-mentioned reasons, the height of the general enhanced heat exchange section of this kind type of furnace all must be longer, though effect is all right during heating, the bottom of a pan is then far away apart from thermal-flame during cooking, thereby effect is relatively poor when causing cooking.

For overcoming the deficiencies in the prior art and defective, the purpose of this utility model provides a kind of horizontal annular labyrinth fin heat exchange type cooking heating coal furnace, make its remove have the water-jacket typ coal furnace have easy to operate, pollute little, good looking appearance, outside the series of advantages such as the speed of getting angry is fast, also further enhanced heat exchange increases the heat exchange amount, improves the coal-fired thermal efficiency, thereby make its not only good heating effect, and the cooking effect is also better.

The utility model is achieved through the following technical solutions: it mainly is made up of parts such as body of heater, ash bucket, tile, heat-insulation layer, water jacket, heat exchange fin, baffle liner, regulable ring-shaped fire-sealing ring, Lu Quan, discharge flues, it is characterized in that the heat exchanger fin on the water jacket inwall in the high-temperature flame district adopts annular and horizontally disposed, and evenly perforate on every layer of ring segment, staggered mutually in hole on the neighbouring ring segment and form annular maze-type structure; Also can adopt by multilayer multistage ring segment and be interrupted horizontally disposed and form annular maze-type structure.

Owing to adopt above-mentioned solution, strengthened the hybrid perturbation of air-flow greatly, make the hot flue gas fully heat exchange up and down in annular labyrinth type fin after the burning, not only reached enhanced heat exchange effectively, improve the purpose of the coal-fired thermal efficiency, and solved the problem that there is the high-temperature flue gas stagnation region in upper end, enhanced heat exchange district.

Fig. 1 is a structure principle chart of the present utility model.

Fig. 2 is the A-A cutaway view of Fig. 1, has expressed to stagger mutually in hole on the upper and lower adjacent annular sheet and the annular maze-type structure that forms.

Fig. 3, Fig. 4 are another kind of embodiment of the present utility model, have expressed heat exchanger fin and have adopted by multilayer multistage ring segment and be interrupted when horizontally disposed and the annular maze-type structure that forms.

Specify structural principle of the present utility model below in conjunction with accompanying drawing, the course of work and embodiment:

The utility model is mainly by body of heater 1, ash bucket 2, and tile 3, heat-insulation layer 4, water jacket 5, annular heat exchange fin 6, baffle liner 7, fire sealing cover 8, regulable ring-shaped fire-sealing ring 9, parts such as stove circle 10 and discharge flue 11 are formed.Above-mentioned annular heat exchange fin 6 is arranged on the water jacket inwall in the thermal-flame district, and its adopts multi-layer annular sheet horizontally disposed, and evenly perforate on every layer of ring segment, is staggered mutually in the hole on the neighbouring ring segment, to form annular labyrinth type exhaust gases passes.For ease of casting processing, annular heat exchange fin also can adopt and be interrupted horizontally disposed and the annular maze-type structure shown in Fig. 3,4 that form by multilayer multistage ring segment.Make burning after heat flue gas in annular labyrinth type heat exchanging fin about, about fully heat exchange.The thickness of every layer of ring segment can be about 3mm, and the number of plies can be decided because of the size of exerting oneself of stove, is generally the 4-6 sheet.

For the control that realizes fired coal combustion speed and heating load size and when the cooking firepower prosperous, on baffle liner 7, be provided with regulable ring-shaped fire-sealing ring 9, also have on this fire-sealing ring with annular heat exchanger fin on the hole of equal number and size.During heating,, regulate the openings of sizes of annular fire-sealing ring 9 again, can realize to fired coal combustion speed with to stopping up the control of interior heating load size as long as fire sealing cover 8 is covered on fire door.Cooking or when heating up water should make the complete staggered positions in hole on hole and the annular heat exchange fin topmost on the annular fire-sealing ring 9.At this moment, the discharge flue that forms between the horizontal annular labyrinth type heat exchanging fin is promptly blocked.At this moment, open fire sealing cover 8 again, high temperature fire cigarette will inevitably move on to the centre of baffle liner by fire door, and pot is placed on the baffle liner, will obtain extraordinary cooking effect.

During normal the use, ash bucket 2 and adjustable annular fire-sealing ring 9 that can be below body of heater and lead to outdoor discharge flue 11 controlled its intake and exhaust air rate, easily with the purpose that reaches heating, cooking and bank up a fire for a long time.

This coal furnace is effective equally to moulded coal, the coal that looses.

The utility model compared with prior art has the following advantages and beneficial effect: it is except having Simple in structure, easy to operate, pollute little, outside the series of advantages such as fire-sealing time is long, because at height Temperature flame combustion district is provided with horizontal annular labyrinth type heat exchanging fin, makes hot flue gas after the burning at ring Up and down fully heat exchange in the shape labyrinth type heat exchanging fin can add the hybrid perturbation of air blast, again Can increase effective heat exchange area, thereby compare with the existing type of furnace, strengthen heat exchange, greatly improve Heat exchange efficiency. Also effectively having solved stagnation region affects the problem of heat-transfer effect. Simultaneously, shortened The height of enhanced heat exchange section makes structure compacter, and not only heating effect is good, and the cooking effect also more Good.

Claims (2)

1, a kind of horizontal annular labyrinth fin heat exchange type cooking heating coal furnace, mainly by body of heater [1], ash bucket [2], tile [3], heat-insulation layer [4], water jacket [5], baffle liner [7], fire sealing cover [8], regulable ring-shaped fire-sealing ring [9], stove circle [10], discharge flue compositions such as [11], it is characterized in that the heat exchanger fin [6] on the water jacket inwall in the high-temperature flame district adopts annular and horizontally disposed, and evenly perforate on every layer of ring segment, and stagger mutually and form annular maze-type structure in the hole on the upper and lower adjacent annular sheet.

2, a kind of horizontal annular labyrinth fin heat exchange type cooking heating coal furnace, mainly by body of heater [1], ash bucket [2], tile [3], heat-insulation layer [4], water jacket [5], baffle liner [7], fire sealing cover [8], regulable ring-shaped fire-sealing ring [9], stove circle [10], discharge flue compositions such as [11] is characterized in that the heat exchanger fin [6] on the water jacket inwall in the high-temperature flame district adopts horizontally disposed by multilayer multistage ring segment interruption and annular maze-type structure that form.

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