CN2404060Y

CN2404060Y - Film type wall hot pipe boiler

Info

Publication number: CN2404060Y
Application number: CN 99210389
Authority: CN
Inventors: 张基贤
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-04
Filing date: 1999-06-04
Publication date: 2000-11-01
Anticipated expiration: 2009-06-04

Abstract

The utility model relates to a novel film type wall hot pipe boiler which is a widely used small coal-fired heating device. The utility model is invented for providing a film type wall hot pipe boiler which has the advantages of high heat efficiency, low fuel consumption, smoke pollution decrease, and safety. The utility model is characterized in that the utility model has a novel structure boiler shape which uses a double-layer fire grate forward and reverse combustion technology, the high temperature flue pipe adopts a film type wall structure, and the low temperature flue pipe adopts a gravity heat pipe structure.

Description

The membrane wall heat pipe boiler

The utility model relates to a kind of small-sized normal-pressure hot-water boiler, particularly a kind of membrane wall heat pipe boiler.

Existing small size hot-water boiler, structural shape or adopt simple horizontal water pipe structure perhaps adopts simple gravity assisted heat pipe structure, and combustion system or single fire grate forward combustion, or the reverse burning of double-layer grate respectively have deficiency.Its dividing plate is that iron plate, partition wall are cement wall, do not make full use of and be subjected to heat space.

The purpose of the utility model boiler is to provide a kind of high thermal efficiency, low fuel consumption, minimizing smoke contamination, safe and reliable membrane wall heat pipe boiler.

The purpose of the utility model boiler realizes by following structure: upper and lower two combustion chambers that its bottom is made up of membrane wall partition wall, water pipe furnace grate and membrane wall dividing plate, the high-temperature flue gas passage that the middle part is made up of upper and lower membrane wall dividing plate, the centre that top is made up of last membrane wall and low-temperature flue gas dividing plate and last water layer is covered with the low-temperature flue gas passage of gravity assisted heat pipe, and exhaust opening is positioned at boiler side walls and is connected with the low-temperature flue gas passage.

The utility model boiler adopts the forward and reverse combustion technology of double-layer grate, and coal is burnt in two combustion chambers fully, improves combustion efficiency, and fuel savings reduces the pollution of soot emissions.All adopt the higher membrane wall water pipe structure of heat transfer efficiency in combustion chamber and high-temperature flue gas passage, increased heating surface, improved the thermal efficiency.In the low-temperature flue gas channel arrangement the very high gravity assisted heat pipe of the coefficient of heat conduction, more effectively absorb waste heat, reduce exhaust gas temperature, improve the thermal efficiency.

Fig. 1 is a membrane wall heat pipe boiler structural representation.

Below in conjunction with drawings and Examples the utility model is described further.

Embodiment:

As shown in Figure 1, it is vertical circular configuration, form upper and lower combustion chamber 19 and 4 respectively by membrane wall partition wall 6, water pipe furnace grate 20, membrane wall dividing plate 9 and water pipe furnace grate 20, membrane wall partition wall 22, casting furnace grate 3, by membrane wall 6, up and down membrane wall dividing plate 9,10 form high-temperature flue gas passage 7 with by last membrane wall 10 and low-temperature flue gas dividing plate 18 and go up water layer 13 and be covered with low-temperature flue gas passage 12 3 parts that gravity assisted heat pipe 11 also is connected with exhaust opening 17 in the middle of forming and form.Delivery port 15, thermometer 14 are positioned at the top of water layer 13, and water return outlet 2 is positioned at side water layer bottom.

The utility model membrane wall heat pipe boiler is four homeward journeys, pass water pipe furnace grate through air compartment 21 for wind, make the coal seam be subjected to the forward flame combustion, do not have the ut of after-flame and the more flue gas of carbonaceous particles oppositely to pass water pipe furnace grate and enter lower combustion chamber and be subjected to second-time burning in upper combustion chamber.High-temperature flue gas enters by hanging down by the membrane wall passage and discharges from the exhaust opening that is positioned at boiler side walls after temperature dummy plate is divided into bilevel low-temperature flue gas passage.

Claims

A kind of new membrane wall heat pipe boiler, it is characterized in that: its bottom is by membrane wall wall (6), water pipe furnace grate (20), the upper combustion chamber (19) that membrane wall dividing plate (9) is formed and by water pipe furnace grate (20), membrane wall partition wall (22), the lower combustion chamber (4) that casting furnace grate (3) is formed, the middle part is by membrane wall dividing plate (9) up and down, (10) the high-temperature flue gas passage of forming with membrane wall partition wall (6) (7), top is by last membrane wall dividing plate (10), low temperature dummy plate (18) reaches the low-temperature flue gas passage (12) that the centre of going up water layer (13) composition is covered with gravity assisted heat pipe (11).