CN2279553Y - 1.5 ton 0.7 Mpa vertical water pipe hand boiler - Google Patents

Abstract

The utility model relates to a 1.5 ton 0.7 Mpa vertical water pipe hand boiler. A water cooling fire grate and a lower fire grate are arranged in an internal furnace, the lower ends of a boiler shell and the internal furnace are provided with U-shaped lower pin rings, the lower sides of the boiler shell and the internal furnace are provided with two boiler doors and throat rings, and one side of the boiler shell is provided with a double-bending water pipe, a smoke box and a fume passage. The utility model has the advantages of good water circulation, compact structure, low cost, convenient installation and maintenance, complete combustion, high thermal efficiency and favorable effect of smoke prevention and dust removal, and scale is not easy to generate.

Description

1.5 the vertical water pipe handwarmer of ton 0.7Mpa

The utility model relates to the heater in the mechanical engineering, particularly relates to a kind of life steam boiler.

As everyone knows, the capacity of boiler, specification parameters such as pressure are extremely strict and important, domestic existing 1.5 tons/time vertical boiler also have only vertical straight water pipe boiler, steam pressure can reach 0.784Mpa, the flue gas that generates after coal burns on fire grate flows to the straight water pipe tube bank from trunnion, in the middle of the water pipe tube bank major diameter down-comer is arranged, build in the down-comer left side partition wall, flue gas is circled round a week around down-comer, enter chimney after the tube bank of transversal flow water pipe, enter atmosphere by chimney again, its advantage is that water circulates, last lower perforated plate is under water, can be not overheated because of fouling, incrustation scale is removed easily in the pipe, compact overall structure, installation and maintenance are convenient, but because of its structure is the burning of individual layer fire grate, the thermal efficiency is low, coal consumption is big.Energy waste is serious, and dust stratification is easy-clear not, and the steel consumption is big during making, cost price height.

The purpose of the utility model aims to provide that a kind of water circulates, less scaling, compact conformation, installation and maintenance are convenient, fuel combustion is abundant, smoke medicining dust-removing effect good, the thermal efficiency is high, the low vertical water pipe handwarmer of 1.5 tons of 0.7Mpa of little cost is consumed in low coal consumption, steel.

Technical solution of the present utility model is: the vertical water pipe handwarmer of this 1.5 tons of 0.7Mpa, form by boiler body and flue two parts, boiler body has shell again, flue, flue has rear smoke chamber, deduster, air-introduced machine, chimney, be mounted with water-cooled grate at the flue middle part, shell, the flue side is equipped with upper furnace door, middle fire door, the aditus laryngis circle, shell, the flue lower end is connected and fixed U type leftover bits and pieces circle and bracket supports lower floor fire grate, the shell periphery is mounted with many two curved water pipes and smoke box, the flue gas passageway, two curved water pipes, equal and the shell of water-cooled grate, the inner chamber that flue is formed is communicated with, two ends, flue gas passageway connect with smoke box and aditus laryngis circle respectively, and the smoke box opposite side connects with rear smoke chamber again.

The utility model and 1.5 tons of prior aries/time vertical boiler compare, adopt double-layer grate, coal burning is abundant, water-cooled grate, flue constitutes radiation heating-surface, add the flue gas heat exchange of two curved water pipes, the thermal efficiency is improved greatly, water-cooled grate also makes stove layer temperature low, can adapt to the caking property burning of coal, wide adaptability, water circulates in the boiler, less scaling, installation and maintenance are convenient, remove dust stratification, incrustation scale is easy, the utility model is reasonable in design, compact conformation, technical performance advanced person, eliminate smoke through the two-stage dedusting, good dedusting effect reaches national class area discharge standard.Low coal consumption, steel consume less, cost is low, are widely used.

Fig. 1 is the utility model profile diagrammatic sketch.

Fig. 2 is the utility model boiler body longitudinal sectional view.

Fig. 3 is the boiler body vertical view.

Fig. 4 is the water-cooled grate configuration diagram.

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

Referring to Fig. 1, the utility model includes boiler body (1), smoke box (2), rear smoke chamber (3), deduster (4), air-introduced machine (5), chimney (6), flue gas passageway (7), smoke box (2) and flue gas passageway (7) are fixed on the boiler body (1), flue gas passageway (7) is gone up the top and is connected with smoke box (2), lower end one side is communicated with aditus laryngis circle (8) on the boiler body (1), and smoke box (2), rear smoke chamber (3), deduster (4), air-introduced machine (5), chimney (6) connect successively.

Referring to Fig. 2, boiler body (1) has shell (9), flue (10), water-cooled grate (14), upper furnace door (13), middle fire door (12), the U type is got a foothold and is enclosed (11), two curved water pipes (16), lower floor's fire grate (15), two curved water pipes (16) two ends are weldingly fixed on the shell (9), aditus laryngis circle (8) is with last, middle fire door (13,12) radially become 90 ° of angles, and all be to be fixed on shell (9), on the flue (10), water-cooled grate (14) two ends are weldingly fixed on the flue (10), flue (10), the U type is got a foothold and is enclosed (11), water-cooled grate (14), lower floor's fire grate (15) has constituted the internal combustion type combustion chamber.In boiler design, the design of burner hearth size, height is mainly considered two important parameters: i.e. grate area calorific intensity and burner hearth heat intensity.The utility model is controlled at the grate area calorific intensity under the prerequisite of a zone of reasonableness, select less flue internal diameter, so that saving material, flue (10) internal diameter 1300mm, high 1690mm, thickness 14mm, material: 20g, shell (9) external diameter 1524mm, thickness 12mm, also be to adopt the 20g steel plate, this boiler design has also been selected the high value of grate area calorific intensity in zone of reasonableness for use, water-cooled grate (14) is selected 11 (referring to Fig. 4) for use, external diameter and wall thickness are that furnace grate tube and the flue (10) of ∮ 63.5 * 5mm radially welds, spacing 26.5mm between pipe, simultaneously, water-cooled grate (14) becomes 12 ° inclination angle with horizontal plane, 12 ° inclination angle has guaranteed good water circulation and good cooling condition, has four clean-out openings on the corresponding shell in the upper end of water-cooled grate tube (14) (9), makes the cleaning water-cooled grate tube very convenient, water-cooled grate (14) is formed double-layer grate with lower floor's fire grate (15), lower floor's fire grate (15) is by the cast iron manufacturing, the flue of water-cooled grate (14) top, a upper furnace door (13) is arranged, the flue of below on the shell, a middle fire door (12) is arranged on the shell, during boiler operatiopn, upper furnace door is often opened, and is the inlet of fuel and air, and middle fire door is normally closed, only when igniting and scarfing cinder, open, the lower furnace door that has a deashing to use on the ground under lower floor's fire grate, crack, lower floor's fire grate coke particle burning required air enters thus, the aditus laryngis circle is oval, the long 550mm of major axis, the long 450mm of minor axis, thickness 18mm, the U type is got a foothold to enclose in (11) upper end and is connect flue, external shell.Thickness 16mm, internal diameter ∮ 1300mm, spacing 112mm, hot pressing inside radius R40mm adopts the Mng steel plate to make, two curved water pipes (16) and shell (9) welding, form convection heating surface, two curved water pipes (16) curve five kinds of shapes, five one group, stagger arrangement is arranged, occupies the useful space, improves coefficient of convective heat transfer, every water pipe external diameter and wall thickness are ∮ 51 * 3, adopt 20 seamless steel tube for boiler to make, totally 211, also just arranged enough heating surfaces owing to increase the pipe radical.The corresponding site of this external shell (9) and flue (10) is fixedly connected with the stay bolt round steel (17) that diameter is ∮ 25mm, mainly be arranged near fire door (12,13) and the aditus laryngis circle (8), stay bolt round steel (17) two ends are fixing with shell (9) and flue (10) respectively.Smoke box (2) is octahedral shape (referring to Fig. 1), handsome in appearance, four alternate layouts of wicket are used for checking and deashing that smoke box (2) bottom is evenly equipped with four ash holes, rear smoke chamber connects the exhanst gas outlet of smoke box, two interfaces are arranged, and one is the gravity-flow ventilation interface, and one is the air-introduced machine interface, air-introduced machine is selected 135 ° inclined pipe outlet for use, and flue part compact Layout together.

Claims (8)

1, the vertical water pipe handwarmer of a kind of 1.5 tons of 0.7Mpa, form by boiler body (1) and flue two parts, boiler body (1) has shell (9) again, flue (10), flue has rear smoke chamber (3), deduster (4), air-introduced machine (5), chimney (6), it is characterized in that being mounted with water-cooled grate (14) at flue (10) middle part, shell (9), flue (10) side is equipped with upper furnace door (13), middle fire door (12), aditus laryngis circle (8), shell (9), flue (10) lower end is connected and fixed U type leftover bits and pieces circle (11) and bracket supports lower floor fire grate (15), shell (9) periphery is mounted with many two curved water pipes (16) and smoke box (2), flue gas passageway (7), two curved water pipes (16), water-cooled grate (14) all with shell (9), the inner chamber that flue (10) is formed is communicated with, two ends, flue gas passageway (7) connect with smoke box (2) and aditus laryngis circle (8) respectively, and smoke box (2) opposite side and rear smoke chamber (3) connect.

2, the vertical water pipe handwarmer of 1.5 tons of 0.7Mpa according to claim 1 is characterized in that it is that furnace grate tube and the flue (10) of ∮ 63.5 * 5mm radially welds spacing 26.5mm between pipe that water-cooled grate (14) is selected 11 external diameters and wall thickness for use.

3, the vertical water pipe handwarmer of 1.5 tons of 0.7Mpa according to claim 1 and 2 is characterized in that water-cooled grate (14) becomes 12 ° inclination angle with horizontal plane.

4, the vertical water pipe handwarmer of 1.5 tons of 0.7Mpa according to claim 1 is characterized in that flue (10) internal diameter 1300mm, high 1690mm, thickness 14mm, material 20g.

5, the vertical water pipe handwarmer of 1.5 tons of 0.7Mpa according to claim 1 is characterized in that shell (9) external diameter 1524mm, and thickness 12mm adopts the 20g steel plate to make.

6, the vertical water pipe handwarmer of 1.5 tons of 0.7Mpa according to claim 1 is characterized in that connecing flue (10), external shell (9), thickness 16mm in U type leftover bits and pieces circle (11) upper end, internal diameter ∮ 1300mm, spacing 112mm, hot pressing inside radius R40mm adopts the 16Mng steel plate to make.

7, the vertical water pipe handwarmer of 1.5 tons of 0.7Mpa according to claim 1 is characterized in that totally 211 in two curved water pipes (16), curves 5 kinds of shapes, and per 5 one group, stagger arrangement arranges, every water pipe external diameter and wall thickness are ∮ 51 * 3, adopt 20 seamless steel tube for boiler to make.

8, the vertical water pipe handwarmer of 1.5 tons of 0.7Mpa according to claim 1, it is characterized in that being fixedly connected with the stay bolt round steel (17) that diameter is ∮ 25mm, mainly be arranged near fire door (12,13) and the aditus laryngis circle (8) at the corresponding site of shell (9) and flue (10).

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