CN2245195Y

CN2245195Y - Energy-saving boiler with no-pressure screw flue

Info

Publication number: CN2245195Y
Application number: CN 96202567
Authority: CN
Inventors: 薛显堂
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-17
Filing date: 1996-02-17
Publication date: 1997-01-15
Anticipated expiration: 2006-02-17

Abstract

The utility model relates to an energy-saving boiler with a no-pressure screw flue, which is a somewhat small boiler heating for units, or collectivities or families. The utility model is composed of a boiler body, a flue, a combustion chamber, an exhaust pipe, etc. The utility model is characterized in that the flue in the boiler body is in the shape of screw convolution; compared with a congener boiler, the flue can be lengthened by 6-10 times; making use of the residual heat of fume exhaust, the heat loss can be reduced, and the heat efficiency can be improved. Coal can be saved by from 10% to 15%; electricity is disused when in use; the electrodynamic devices of the blower, a draught fan, etc. can not be used; noise does not exist when running; electricity expense can be saved; the cost of operation and maintenance can be decreased. The manufacturing technique is simple; the cost is lower; the use is safe; the operation is simple; the management is easy; the labor intensity of an operating staff can be reduced.

Description

Energy-conservation nothing is pressed spiral flue boiler

The utility model belongs to unit, collective or family's heating and presses spiral flue boiler with more small-sized energy-conservation nothing.

Pressure-less boiler of the prior art, the flue in the body of heater belongs to the shorter of through type, can not make full use of the waste heat of flue, and generally all must be equipped with electronic combustion-supporting facility such as air blast, air-introduced machine or circulating pump or help recycle unit.Shortcomings such as there are noise, pollution in the peak times of power consumption heatings peak of also need hiding during work, the electricity charge, maintenance cost are more.

The purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part, provide and adopt spiral spirally flue in a kind of body of heater, the energy-saving nothing that fully absorbs smoke discharging residual heat is pressed spiral flue boiler, reduce heat loss, improve the thermal efficiency, reduce smoke contamination, during work without air blast, the non-electric novel energy-conserving boiler of electronic combustion-supporting facility such as air-introduced machine.

The purpose of this utility model can reach by following measure: a kind of energy-conservation nothing is pressed spiral flue boiler, partly form by body of heater 2, flue 3 combustion chambers 5 and gland steam exhauster 15 etc., it is characterized in that the flue 3 in the cylindrical furnace is to be welded into the four directions pipe by iron plate, become the spiral convolution, down smoke-discharging mouth 4 is fan-shaped mouthful, communicates with combustion chamber of furnace body 5, and exhaust opening 1 is cylindrical on the flue, spiral spirally flue 3 in the bottom lock, body of heater communicates with cylindrical exhaust opening 1 from the side in the upper end.

Corresponding position, combustion chamber of furnace body of the present utility model side is provided with a closed coal storeroom 11 and communicates with the combustion chamber, and the coal storeroom side has muffler 10 to feed the combustion chamber.This coal storeroom communicates with the combustion chamber, makes the coal in the coal storeroom obtain preheating, adds after the charing in the combustion chamber, to be fully burned and not reduce combustion chamber temperature.The coal gas that produces in the coal storeroom is gone into burning again in the combustion chamber for 10 times by muffler.

Flue 3 of the present utility model is that spiral is circinate shaped, for dust stratification in the periodic cleaning flue, leaves gray-drawing port 12 at each joint spiral flue lower that spirals, and movable closing door is arranged.

The utility model has following advantage compared to existing technology:

1. because of the lengthening of the flue in the body of heater, can make full use of smoke discharging residual heat, reduce heat loss, improve the thermal efficiency, be sparing in the use of coal, with the 10%-15% that economizes on coal that compares with the capacity boiler.

2. sufficient combustion is not arranged black smoke, reduces smoke contamination, helps environmental protection.

3. need not use electronic facilities such as air blast, air-introduced machine, the operation noiselessness is saved the electricity charge, electricity subsides input, reduces and uses and maintenance cost.The peak times of power consumption heating need not be hided peak times of power consumption.

4. manufacturing process is simple, and cost is low, and is safe and reliable to operation, and good management simple to operate alleviates labor intensity of operating personnel.

The drawing of accompanying drawing is described as follows:

Fig. 1 is that energy-conservation nothing is pressed spiral flue boiler master pseudosection, among Fig. 1: water 14-outlet pipe 15-blast pipe in the flue 4-down smoke-discharging mouth 5-combustion chamber 6-fire door 7-fire grate 8-filling pipe 9-return pipe 10-muffler 11-12-of the coal storeroom gray-drawing port 13-body of heater in the 1-exhaust opening 2-body of heater 3-body of heater

Fig. 2 is that energy-conservation nothing is pressed spiral flue boiler A-A face cutaway view.Among Fig. 2: water in the 13-body of heater of 2-body of heater 4-down smoke-discharging mouth 5-combustion chamber

The utility model is described in further detail below in conjunction with accompanying drawing embodiment:

As shown in Figure 1, this boiler partly is made up of body of heater 2, flue 3, burning 5 and blast pipe 15 etc.Body of heater can be vertical, also can be horizontal; Body of heater can be columniform, and horizontal can be that en is semi-cylindrical.The more small-sized boiler that be applicable to 80-2600 square metre heating area of the general power of boiler in the 0.1-1 ton that the our factory produces.The main feature of this boiler is that the flue 3 in its body of heater is to be welded into the four directions pipe by iron plate, become the spiral convolution, down smoke-discharging mouth 4 communicates with combustion chamber of furnace body 5 for fan-shaped mouthful, exhaust opening 1 is cylindrical on the flue, spiral spirally flue 3 in the bottom lock, body of heater communicates with cylindrical exhaust opening 1 from the side in the upper end.The flue that flue in the body of heater is compared other boilers of identical size has extended 6-10 doubly, can fully absorb smoke discharging residual heat, improves the thermal efficiency.This boiler can also be set up a kind of closed coal storeroom, be built into coal storeroom in the combustion chamber of furnace body side with the iron plate welding or with refractory brick, communicate with the combustion chamber, make the coal in the coal storeroom obtain preheating in suitable high position, charing is colluded into stove in the combustion chamber from fire door when need are filled out coal.The coal gas that produces in the coal storeroom is gone into burning again in the combustion chamber for 10 times by muffler.The flue of this boiler is that spiral is circinate shaped, and for dust stratification in the periodic cleaning flue, the spy leaves gray-drawing port at each joint spiral flue lower, and each mouthful has activity to seal up a door.Can opening every year seals up a door cleans flues for 1-2 time.The layer that spirals of flue can enclose by 3-6, according to the body of heater height, the decision of the gradient of flue.

This boiler is a pressure-less boiler, and its blast pipe 15 feeds in the elevated tank.

This spiral flue boiler can be provided with the spiral air-introduced machine of a kind of straight tube at last exhaust opening, to accelerate flue gas velocity greater than 1 ton hour.And play the dedusting effect with this.Long because of the flue in this boiler furnace, so exhaust gas temperature is lower, be well suited for by the spiral air-introduced machine of dress straight barrel type.

Claims

1. a sharp energy-conservation nothing presses spiral shell to execute the flue boiler, form by body of heater [2], flue [3], combustion chamber [5], blast pipe parts such as [15], it is characterized in that the flue [3] in the cylindrical furnace is to be welded into cubic pipe by steel plate to become the spiral convolution, down smoke-discharging mouth [4] communicates with combustion chamber of furnace body [5] for fan-shaped mouthful, last exhaust opening [1] is cylindrical, bottom lock, the spiral spirally flue [3] in the body of heater the upper end from the side with cylindrical on exhaust opening [1] communicate.

2. energy-conservation nothing according to claim 1 is pressed spiral flue boiler, the corresponding high position, side that it is characterized in that combustion chamber [5] is provided with a kind of closed coal storeroom [11] and communicates with the combustion chamber, and coal storeroom's upper side has muffler [10] to feed the combustion chamber of furnace body bottom.

3. press spiral flue boilers according to claim 1,2 described energy-conservation nothings, it is characterized in that each joint spiral flue lower that spirals has each mouth of a gray-drawing port [12] to be provided with to seal up a door.