CN2328937Y

CN2328937Y - Back burning type oil combustion boiler

Info

Publication number: CN2328937Y
Application number: CN 98209451
Authority: CN
Inventors: 杨光辉; 杨文俊; 杨文斌
Original assignee: 杨光辉
Priority date: 1998-04-10
Filing date: 1998-04-10
Publication date: 1999-07-14
Anticipated expiration: 2008-04-10

Abstract

The utility model discloses a back burning type oil combustion boiler. The inner side of a boiler body (1) is provided with an insulative, a heat-insulating an inner layer water jackets (3, 4 and 5); a heat exchange flushing crack is formed between an annular boiler container (9) and the inner layer water jacket (5); an inner ring thereof is provided with a combustion chamber (10); both ends of the ring of the boiler container (9) are sealed; the upper part can shrink into the tapered port, forming a channel of the boiler container; a combustor (12) is arranged on the top of the boiler body; an annular flue (23) is arranged between the flushing crack (8) and a chimney. The water jacket is communicated with the boiler 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

The counter-burning type oil burning boiler

The utility model belongs to Thermal Equipment, is specifically related to the heating of a kind of collection, retaining is an one, is applicable to civilian or service industry, concentrates and supplies with life and the bathing counter-burning type 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 counter-burning type 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 big capacity counter-burning type oil burning boiler 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, the interior ring of annular flue is and main chamber, outer shroud and internal layer water jacket constitute heat exchange and wash away crack, the closed at both ends of the annular of annular flue, top is punctured into bell and forms the burner hearth passage, burner apparatus body of heater top thereon, flue one side communicated with the internal layer water jacket by communicating pipe: main chamber washes away crack by heat exchange and the horizontal annular flue that communicates with it communicates with chimney: the top of adiabatic water jacket communicates, and 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; One side is provided with explosion-proof vent in the body of heater bottom, and 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 counter-burning type, two kinds of method of works of multistage forced circulation or Natural Circulation, the heat exchange pattern that has adopted crack to wash away has simultaneously realized that the secondary heat exchange washes away, and has 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 civilian oil burning 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;

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, the interior ring of annular flue 9 is a main chamber 10, its outer shroud and internal layer water jacket 5 constitute heat exchange and wash away crack 8, the closed at both ends of the annular of annular flue 9, and top is punctured into bell and forms the burner hearth passage, burner 12 device body of heater tops thereon, flue 9 one sides communicated with internal layer water jacket 5 by communicating pipe; Main chamber 10 washes away crack 8 by heat exchange and the annular flue 23 that communicates with it communicates with chimney 11; 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 two delivery ports up and down, 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, the two ends of circulating

water pipe

14,16 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; One side is provided with explosion-proof vent 13 in the body of heater bottom, and the nozzle device has explosive diaphragm.On the outer surface of shell, be covered with a heat-insulation layer 17.

Annular flue 23 generally is horizontal shape, is positioned at the top of body of heater.

The width that crack 8 is washed away in heat exchange is generally 1.5-5cm, is preferably 2.5-3.5cm.

As an embodiment, this practicality newly adopted 300,000 kilocalories/hour burner, drive the boiler of 20 tons of water capacities, desire is heated to 55-60 ℃ (having reached the standard of daily life with hot water) with water, needs 75 kilograms approximately, 2.5 hours consuming time; 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, flue gas elder generation property is washed away the inwall of annular flue, carries out exchange heat with it, enters flue along up the washing away of crack again, realize exchange heat with furnace outer wall and internal layer water jacket, 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 bottom 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, annular 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, generally below 170 ℃; The thermal efficiency has reached more than 93%.And the minimum exhaust gas temperature of general efficient boiler is also mostly 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 burning that is consisted of by many groups water jacket and annular water courage The chamber. Burner arranges by anti-sintering structure, makes flue gas carry out secondary in main chamber and crack and washes away, and has accelerated The exchange of heat has improved exchange efficiency. Utilize the forced circulation water pump, the heat of the furnace wall that is heated is passed fast Pass water at low temperature, more help to improve the exchange velocity of heat.

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 loop structure 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 counter-burning type oil burning boiler of the present utility model, will obtain good economic benefit and social benefit.

Claims

1. counter-burning type oil burning boiler, mainly by body of heater (1), base (2), flue (9), combustion chamber (10), burner (12) and chimney compositions such as (11), 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, between insulated water jacket (4) and the internal layer water jacket (5) air-gap 7 is arranged, constitute a heat exchange between the outer shroud of annular flue (9) and the internal layer water jacket (5) and wash away crack (8), ring is main chamber (10) in it, the closed at both ends of annular, top is punctured into bell and forms the burner hearth passage, burner (12) device body of heater top thereon; Be communicated with internal layer water jacket (5) by communicating pipe in flue (9) one sides; Main chamber (10) washes away crack (8) by heat exchange and the flue (23) that communicates with it communicates with chimney (11); 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 water supply line and 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 are connected with insulated water jacket (4), internal layer water jacket (5) respectively.

2. counter-burning type oil burning boiler as claimed in claim 1 is characterized in that: the flue (23) that crack (8) and chimney (11) are washed away in the connection heat exchange is a horizontal annular.

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

4. counter-burning type 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).

5. counter-burning type oil burning boiler as claimed in claim 1 or 2 is characterized in that: be provided with explosion-proof vent (13) in body of heater bottom one side, the nozzle device has explosive diaphragm.

6. counter-burning type 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.

7. counter-burning type 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.