CN2328936Y - Multiple stage circulation oil combustion boiler - Google Patents

Abstract

The utility model discloses a multiple stage circulation oil combustion boiler, mainly comprising a boiler body (1), a base (2), a boiler container (9), a combustion chamber (10), a combustor (12), a chimney (11), etc. The inner side of the boiler body (1) is provided with an insulative water sleeve (3); the inner side of the insulative water sleeve (3) is provided with a heat insulating water jacket (4); a heat-exchange flushing seam is formed between the outer wall of a stove body (9) and the inner wall of the upper part of a main combustion chamber (10); the outer wall of the seam (8) is an inner water jacket (5); the water jacket is communicated with the stove container respectively through a communicating tube and a circulating tube. The utility model has the advantages of high efficiency, energy saving and environment protection.

Description

Multistage circulation oil burning boiler

The utility model belongs to Thermal Equipment, is specifically related to the heating of a kind of collection, accumulation of heat is an one, is applicable to civilian or service industry, concentrates and supplies with life and the bathing multistage circulating oil burning boiler with hot water.

World today's energy crisis is on the rise, and how to reduce energy resource consumption effectively, and improving rate of energy is the current a great problem that needs to be resolved hurrily.As everyone knows, coal is one of topmost conventional energy resource, but the burning of coal meeting produces a large amount of flue dust and pernicious gas, causes the pollution of environment.For the needs of protection environment, many cities of many countries all announce to eliminate coal-burning boiler, use fuel oil (gas) boiler instead.With regard to domestic, existing fuel oil (gas) boiler still spreads out basically with the hot conduction mode of coal-burning boiler, and its thermal efficiency and heat exchange amount are all lower, and not only construction cost height, and operating cost is also quite high, has become the ＂ tiger mouth ＂ of power consumption.Some boiler has adopted the heat exchange pattern of ＂ water-vapour-water ＂, promptly at first converts water to water vapour by boiler, carries out heat exchange by water vapour and cold water again, so that needed hot water to be provided.In this course, not only the phase transformation of water will consume heat energy, and the heat under the high temperature to scatter and disappear also be surprising.Boiler must at high temperature be worked simultaneously, easily produces incrustation scale, reduces the heat transfer efficiency of boiler heat-transfer face, has not only increased energy consumption and maintenance cost, also may cause the blast of boiler when serious.In sum, existing boiler causes the unreasonable of heat exchange method and working method owing to its structural reason, finally causes expensive, high energy consumption and higher maintenance cost and short service life.The design people is through concentrating on studies for many years for this reason, developed simple in structure, heat exchange method is reasonable, collection heating, accumulation of heat are one, be applicable to civilian or service industry, concentrated supply life and bathing usefulness hot water, energy-efficient oil burning boiler, through evidence, energy-saving effect is good.

It is a kind of simple in structure, easy to install that the purpose of this utility model is to provide, and the heat exchanger effectiveness height can be saved the energy effectively, and union heating, accumulation of heat are in the circulating oil burning boiler of the large-capacity multi-stage of one.

The utility model is achieved in that it mainly comprises compositions such as body of heater, base, flue, combustion chamber, burner and flue.Furnace body inside is an adiabatic water jacket, there is an insulated water jacket adiabatic water jacket inboard, between insulated water jacket and the internal layer water jacket air-gap is arranged, and constitutes heat exchange between furnace outer wall and the main chamber upper inside wall and washes away crack, burner apparatus communicates with main chamber by the burner hearth passage outside stockhole; Flue one side communicated with the internal layer water jacket by communicating pipe, and its bottom communicates with the bottom water jacket of internal layer at opposite side by a connecting pipe; Have the upper end of a connecting pipe to communicate with the top of adiabatic water jacket, its lower end extend into insulated water jacket's middle and lower part; The upper end of another communicating pipe communicates with the top of internal layer water jacket, and its lower end extend into insulated water jacket's middle part; Supply tank communicates by water supply line and adiabatic water jacket; Insulated water jacket's a side is established two delivery ports up and down respectively, is connected on the main hot water pipeline by outlet pipe and valve respectively; Two groups of circulating water pipes are set respectively on orthogonal both direction respectively the insulated water jacket are communicated with the internal layer water jacket, wherein one group of circulation pipe also is connected with a forced circulation water pump by separation valve door; Also be provided with explosion-proof vent in a side relative with stockhole, the nozzle device has explosive diaphragm.On the outer surface of body of heater, be covered with a heat-insulation layer.

Because the utility model has adopted the internal structure design of multistage circulation, two kinds of method of works of forced circulation or Natural Circulation have adopted crack simultaneously) the heat exchange pattern of washing away, improved the heat exchanger effectiveness and the heat energy utilization rate of boiler greatly.Heating, accumulation of heat integral structure have reduced floor space.The utility model is simple in structure, is convenient to make, installs and repairing, is a kind of practicality, energy-conservation domestic hot water boiler.

Below in conjunction with accompanying drawing and embodiment the utility model is further described, but the utility model is not limited to shown in the accompanying drawing.

Fig. 1 partly cuts open front view for the utility model one embodiment's;

Fig. 2 is that the AA of Fig. 1 is to view;

Fig. 3 is that the BB of Fig. 1 is to view.

As shown in the figure, the utility model mainly comprises compositions such as body of heater 1, base 2, flue 9, combustion chamber 10, burner 12 and chimney 11.Body of heater 1 inboard is an adiabatic water jacket 3, there is an insulated water jacket 4 adiabatic water jacket 3 inboards, one air-gap 7 is arranged between insulated water jacket 4 and the internal layer water jacket 5, constitute heat exchange between the outer wall of flue 9 and main chamber 10 upper inside wall and wash away crack 8, burner 12 is installed on outside the stockhole, communicates with main chamber 10 by the burner hearth passage; One side of flue 9 communicated with internal layer water jacket 5 by communicating pipe, and its bottom communicates in the bottom of opposite side with internal layer water jacket 5 by a connecting pipe; The upper end of a connecting pipe 21 communicates with the top of adiabatic water jacket 3, and its lower end extend into insulated water jacket 4 middle and lower part; The upper end of another communicating pipe 22 communicates with the top of internal layer water jacket 5, and its lower end extend into insulated water jacket 4 middle part; Supply tank 18 communicates by water supply line and adiabatic water jacket 3; A side of insulated water jacket 4 is respectively equipped with up and down two delivery ports, be connected on the main hot water pipeline by outlet pipe 6 and valve respectively, by the two outlet on top and bottom mouth respectively device TNE UPPER SEA TEMPERATURE meter 19 and lower layer of water temperature measurement meter 20 are arranged; Two groups of circulating water pipes 14 and 16 are set respectively on orthogonal both direction, and its two ends communicate with insulated water jacket 4, internal layer water jacket 5 respectively, and wherein one group of circulating water pipe 16 also is connected with a forced circulation water pump 15 by separation valve door; Be provided with explosion-proof vent 13 in a side relative with stockhole, the nozzle device has explosive diaphragm.On the outer surface of shell, be covered with a heat-insulation layer 17.Main chamber 10 washes away crack 8 by heat exchange and communicates with chimney 11.

The width that crack 8 is washed away in heat exchange is generally 1.5-5cm, is preferably 2.5-8.5cm.

As an embodiment, this practicality newly adopted 300,000 kilocalories/hour burner, drive the boiler of 20 tons of water capacities, with 2.5 hours, the diesel oil that consumes 75 kilograms can be heated to water 55 ℃ (having reached the standard of daily life usefulness hot water); Also can drive the boiler of 30 tons, 40 tons, 60 tons water capacities of the utility model with the burner of same specification, can reach the water supply capacity of 100 tons in day heat supply water.And with common oil burning boiler, drive the boiler of 20 tons water capacity, then need 1,000,000 kilocalories/hour burner, the water capacity boiler that drive 60 tons then is impossible.

The course of work of the present utility model is as follows:

1, by feed pipe water is added in the boiler; Open the delivery valve of burner, the ignition combustion device, flame sprays into main chamber, and flue gas washes away along crack, realizes exchange heat with flue and internal layer water jacket, and the water in the boiler is heated;

2, open isolating valve on the circulating water pipe, carry out Natural Circulation.If want forced circulation, close isolating valve, open the forced circulation water pump, can realize forced circulation.

3, raise along with the water temperature in flue and the internal layer water jacket, between flue, the internal layer water jacket and levels water begin circulation, carry out heat exchange; Circulating water pipe 14,16 and communicating pipe 22 are communicated with internal layer water jacket and insulated water jacket, realize between this two water jacket and the exchange heat of levels water; Under the effect of communicating pipe 21, realize between insulated water jacket and the adiabatic water jacket and the exchange heat of levels water simultaneously.

4, hot water proportion is less, rises to the top of body of heater in stove, can measure the levels water temperature respectively by levels temperature measurement meter, when TNE UPPER SEA TEMPERATURE reaches serviceability temperature, can open corresponding outlet valve, uses upper strata hot water in advance; When lower floor's water temperature also reaches serviceability temperature, can close burner, stop heating, can use levels hot water this moment simultaneously.

5, be depleted to when a certain amount of when hot water, can open feed water valve supply cold water, the ignition combustion device is heated to boiler simultaneously.The cold water of supply this moment only enters the middle and lower part of adiabatic water jacket from a side, and hot water that will be wherein by the top of adiabatic water jacket by being pressed into insulated water jacket's middle and lower part communicating pipe 21, carry out exchange heat; Realize the exchange heat of insulated water jacket and internal layer water jacket again by circulation pipe, communicating pipes 22, and the interior water of internal layer water jacket, flue and the heat exchange exchange heat of washing away crack.This working method does not influence normally uses hot water in the stove in supply cold water.

The utility model adopted forced circulation heat exchange method, add the design of the integrated and heat insulation layer insulation construction of thermal regenerator, improved the utilization rate of fuel thermal energy effectively, the discharged flue gas temperature is greatly reduced, 172 ℃ of average out to, the thermal efficiency has reached more than 93%.And the minimum exhaust gas temperature of general efficient boiler is all more than 220 ℃, and the thermal efficiency is the highest 88%, generally about 80%.

The utility model has been simplified furnace binding, thereby has reduced construction cost, is generally the 1/5-1/6 of plain cylindrical furnace cost, and operating cost is the 1/3-1/4 of plain cylindrical furnace.

The utility model not only is suitable for oil firing, and is suitable for burning gas.This structure is not only applicable to normal-pressure boiler, is applicable to high-pressure boiler yet.

Characteristics of the present utility model:

1, breaks the Design Mode of conventional boiler, adopted the single combustion chamber that is consisted of by many groups water jacket. Flue gas exists Wash away in the crack, accelerated exchange heat. Utilize the forced circulation water pump, the heat of the furnace wall that is heated is passed fast Pass water at low temperature, improve rate of heat exchange.

2, crack washes away the heat exchange pattern, and rate of heat exchange is fast, greatly reduces the exhaust temperature of flue gas, improves The utilization rate of heat energy.

3, owing to used the multiple stage circulation principle, in use, the furnace wall that is heated generally only contact 60 ℃ with Under hot water, be difficult for to produce incrustation scale, prolonged the service life of boiler, reduced the regular maintenance cost.

4, the body of heater capacity is big, has adopted multistage circulation again, and in use, outer water temperature is lower, and thermal loss is little, has improved service efficiency.

5, the utility model is simple in structure, be convenient to manufacturing, installation and maintenance, and floor space is little.

The utility model is particularly suitable in the hotel, restaurant, office building or residential building (sub-district) etc. need the place of central heating to install and use.

The utility model is efficient, energy-conservation, has practicality widely, and the protection environment is had positive effect, therefore, promotes the use of multistage circulation oil burning boiler of the present utility model and will obtain good economic benefit and social benefit.

Claims (6)

1. multistage circulation oil burning boiler, mainly form by body of heater (1), base (2), flue (9), combustion chamber (10), burner (12) and chimney (11) etc., it is characterized in that: body of heater (1) inboard is an adiabatic water jacket (3), there is an insulated water jacket (4) adiabatic water jacket (3) inboard, constitute a heat exchange between the outer wall of flue (9) and main chamber (10) upper inside wall and wash away crack (8), burner (12) is installed on outside the stockhole, communicates with main chamber (10) by the burner hearth passage; One side of flue (9) communicated with internal layer water jacket (5) by communicating pipe, and its bottom communicates in the bottom of opposite side with internal layer water jacket (5) by a connecting pipe; The upper end of a connecting pipe (21) communicates with the top of adiabatic water jacket (3), and its lower end extend into the middle and lower part of insulated water jacket (4); The upper end of another communicating pipe (22) communicates with the top of internal layer water jacket (5), and its lower end extend into the middle part of insulated water jacket (4); Supply tank (18) communicates by the top of water supply line with adiabatic water jacket (3); Insulated water jacket's (4) a side is respectively equipped with two delivery ports up and down, is connected on the main hot water pipeline by outlet pipe (6) and valve respectively, installs TNE UPPER SEA TEMPERATURE meter (19) and lower layer of water temperature measurement meter (20) respectively by the two outlet on top and bottom mouth; Two groups of circulating water pipes (14) and (16) are set respectively on orthogonal both direction, and its two ends communicate with insulated water jacket (4), internal layer water jacket (5) respectively; Chimney (11) washes away crack (8) by heat exchange and communicates with main chamber.

2. multistage circulation oil burning boiler as claimed in claim 1 is characterized in that: circulating water pipe (16) is connected with a forced circulation water pump (15) by separation valve door.

3. multistage circulation oil burning boiler as claimed in claim 1 or 2 is characterized in that: be covered with one deck heat-insulation layer (17) on the outer surface of body of heater (1).

4. multistage circulation oil burning boiler as claimed in claim 1 or 2 is characterized in that: be provided with explosion-proof vent (13) in a side relative with stockhole, the nozzle device has explosive diaphragm.

5. multistage circulation oil burning boiler as claimed in claim 1 or 2 is characterized in that: between insulated water jacket (4) and the internal layer water jacket (5) air-gap (7) is arranged.

6. multistage circulation oil burning boiler as claimed in claim 1 is characterized in that: the width that crack (8) is washed away in heat exchange is 1.5-5cm, is preferably 2.5-3.5cm.

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