CN2397369Y - Dual-purpose boiler using oil and coal as fuel - Google Patents

Abstract

The utility model provides a dual-purpose boiler using oil and coal as fuel, which is the improvement of the existing coal burning boiler. The dual-purpose boiler using oil and coal as fuel comprises a boiler body, a boiler chamber, a fire grate, a base and a flue. The utility model is characterized in that the point of a quadrate boiler door (8) of a shell body (2) is additionally hung with an oil burner (12), and the position of the lower side of the quadrate boiler door (8) corresponding to the bottom of the shell body (2) is provided with a choke valve (11).

Description

Oil, coal boiler for dual purpose

The utility model belongs to the boiler class, specifically a kind of oil, coal boiler for dual purpose.

Present boiler generally adopts the use that acts as a fuel of coal or oil, and the boiler that adopts coal to act as a fuel and use easily pollutes environment, progressively eliminates in China city at present; And the boiler that adopts existing oil to act as a fuel and use, because of boiler cost cost height, the general user is difficult for accepting, and as the oil burning boiler of 400 kilograms of water capacities, price is 58000 yuan, and the coal-burning boiler price of same specification only is 5400 yuan.

The purpose of this utility model then is the problem that exists at above-mentioned prior art, has designed a kind ofly will have coal-burning boiler transformation now, makes it have the boiler for dual purpose of fuel oil, two kinds of functions of coal.

The purpose of this utility model can reach by following measure:

A kind of oil, coal boiler for dual purpose comprise body of heater, flue, fire grate, base, flue, it is characterized in that carrying additionally oil bunkering device 12 at rectangular fire door 8 places of housing 2, and have choke 11 in the position of rectangular fire door 8 downside corresponding housing 2 bottoms.

The utlity model has following advantage:

The utility model novel structure, (oil, coal boiler for dual purpose price only are 12000 yuan) with low cost, quick heating, heat are imitated height, power consumption is low, safe and reliable, can adapt to environmental requirement, are that suitable small towns, city all trades and professions are produced, a kind of New-type boiler that needs of life.

When the utility model bursting tube surpassed 0.05MPa at furnace pressure, automatically unloading can be reported to the police when water level is lower than the safe mouth of pipe automatically, informed in user's stove lack of water, need add water.

The impact tube protective device is guaranteed not dry combustion method of impact tube when low water level, do not inhale flat.

Many standpipes are the string fire tube, make stove water heating surface strengthen energy savings.

The ditch is logical in the water that is held in the water pipe furnace grate and the stove, increases heating surface, prolongation fire grate service life.

When coal-fired, but the inlet scoop natural air inlet need not air blast; During fuel oil, but add the choke anti-backfire, in order to avoid run heat in the inlet scoop.

Rectangular fire door is gallery ports, can use pluralities of fuel, as equal incendivities such as wood chip, assorted bavin, coal, straw, leaves; Usable oils burns after installing oil burner additional, becomes oil, coal boiler for dual purpose.

Fig. 1 is the utility model structural representation.

Fig. 2 is the side view of Fig. 1.

Below in conjunction with accompanying drawing the utility model is further described:

Oil, coal boiler for dual purpose adopt goes up water feed apparatus.When running water injects boilers by being arranged on the last inlet channel 14 of boiler on binding; at first fill impact tube protective device 3; spilling water enters furnace chamber add water in stove then, and the water level meter on furnace shell 2 reaches when showing water more than 2/3 place, and institute's water capacity convenience point fire burns in the stove is described.

If use coal, assorted bavin, wood chip etc. to act as a fuel, then the bavin of mixing, wood chip etc. can be put in the burner hearth 7 through rectangular fire door 8, after with paper firewood, wood chip being lighted then, again coal shovel is advanced burner hearth 7, make burning normal.

If act as a fuel with oil, then mount oil burner 12 with steady pin 13 at rectangular fire door 8 places, connect power supply, can the oil spout auto-ignition combustion.

The heat that fuel produces after burner hearth 7 internal combustion transfers heat to furnace chamber by hearth wall, many standpipes 6, flue 5, impact tubes 4, makes the intensification of being heated of water in the furnace chamber, until boiling.

Because this stove heating surface area is bigger, under situation about using with amount fuel, the water in its stove, with respect to the little boiler of heating surface, programming rate is accelerated, and the time that boils shortens, and energy-saving effect is remarkable, plays synergism and reducing expenditure, saves the effect of the energy.

Be provided with one group of fire grate 10 in the burner hearth, fire grate 10 is a tubulose, links to each other with housing 2 inner chambers, and water can flow mutually in the stove, and its effect is the heating surface that has increased stove water, and the water that flows in the pipe also helps fire grate 10 heat radiations simultaneously, has prolonged the service life of fire grate 10.

When fire coal, choke 11 can be opened, form the inlet scoop, natural air inlet.Skimming door 9 can in time remove the gred, and simultaneously, the inlet scoop has become ash door again.

When fuel oil, choke 11 is shut, and fully burning is circled round in oil spray combustion in burner hearth 7.

The water very fast boiling that heats up of being heated in stove, when surpassing certain steam temperature, when vapour pressure rose to the 0.04MPa atmospheric pressure, safety valve 15 will be opened release automatically, reduced furnace pressure and played safe hypotensive effect.Bursting tube 1 is pressed in stove when reaching 0.05MPa simultaneously, the vapour of also can metalling run out automatically decompression.If when burning, low water level generation lack of water phenomenon in the stove, bursting tube 1 will run vapour automatically, sends the vapour cry that blow whistle, and caution the operator arouse attention, and the supplementary furnace water of hastening, and stops the accident generation.

Because be to go up water inlet, the flue protective device is being filled water for 3 li all the time, ring protects around impact tube 4, dry combustion method can not take place to it, and it is flat also just to protect impact tube 4 can not inhale.

Claims (3)

1, a kind of oil, coal boiler for dual purpose, comprise body of heater, flue, fire grate, base, flue, it is characterized in that locating to carry additionally oil bunkering device (12), and have choke (11) in the position of rectangular fire door (8) downside corresponding housing (2) bottom at the rectangular fire door (8) of housing (2).

2, oil according to claim 1, coal boiler for dual purpose is characterized in that being provided with one group of fire grate (10) in burner hearth, fire grate (10) links to each other with housing (2) inner chamber.

3, oil according to claim 1, coal boiler for dual purpose is characterized in that oil burner (12) is mounted on rectangular fire door (8) with steady pin (13) and locates.

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