CN2033090U

CN2033090U - Multi-hole wind-in-aid burning energy-saving grate

Info

Publication number: CN2033090U
Application number: CN 88208768
Authority: CN
Inventors: 王万鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-07-02
Filing date: 1988-07-02
Publication date: 1989-02-22

Abstract

The utility model belongs to the coal grate for combustion apparatus, and this multi-hole air-blowing energy-saving combustion supporting fire grate is provided specially for overcoming the problems of the common fire grate that the ventilation and the oxygen supply is not good and the combustion is not complete. The multi-hole air-blowing energy-saving combustion supporting fire grate comprises hollow fire bars with holes, hollow fire grates, a secondary air blowing duct, and a twyer. As using, the air of the blower can be blown off from the small holes of the fire bars, and can be blown into the hearth through the secondary air blowing duct. Since the oxygen supply is sufficient and the combustion is complete, the energy can be saved more than 40%, and the effects of smoke prevention and dust control are good, moreover, the multi-hole air-blowing energy-saving combustion supporting fire grate is accepted by the users with good probation effects.

Description

Multi-hole wind-in-aid burning energy-saving grate

The utility model belongs to the fire grate in stove, the kitchen range.

As everyone knows, the coal-fired stove or the burner hearth bottom of kitchen range all are provided with fire grate, and fire grate before is strip, and quantity is more, generally will account for more than 50% of hearth area, thereby has influenced ventilation, the burning of the insufficient fuel of oxygen supply is just not thorough, like this, not only waste the energy, also caused a large amount of smog simultaneously, contaminated environment, sometimes high overheated because of the fire grate surface temperature, fire bars flexural deformation appears, influenced service life.

The purpose of this utility model is in order to overcome the shortcoming of above-mentioned fire bars, a kind of energy-conservation fire grate of the combustion-supporting type of drying is provided, intend adopting the air blast in the sidewall of lower furnace portion of hollow fire bars with holes to furnace bottom and employing secondary air channel, make oxygen supply abundant, burning fully, thereby reduced the pollution of smog, also improved the service life of fire grate.

By as above design, the feature of the energy-conservation fire grate of porous blowing combustion-supporting type provided by the utility model is: it is made up of the vertical tube in the band elbow air port of many that have a lot of blowing apertures hollow fire bars, hollow fire grate edge, many after-blows in burner hearth and two air ports on the fire grate external cylindrical surface.Fire grate and fire bars are the hollow cavitys that is communicated with, and at every fire bars a plurality of apertures of the oblique blowing of two rows are arranged all on the face of burner hearth inside, at fire grate the vertical tube of a plurality of after-blows are arranged on the upper surface of burner hearth inside, and pipe communicates with the inner chamber of fire grate.Two air ports that make progress with fire bars footpath are at angle arranged on the external cylindrical surface of fire grate.

The quantity of after-blow vertical tube is 6～10 in this programme.The aperture of the aperture on the fire bars is φ 3～5, and the distance between the aperture is 15～25mm.Two air ports and the angle between the fire bars that the footpath makes progress are 20～30 °.

That this coal grate can be done is circular, oval, square, and various special-shaped shapes.

During use energy-conservation fire grate is fixed on furnace bottom, vertical tube is distributed among the furnace lining, and the bottom of inboard wall of burner hearth is led in its elbow air port, and one in two air ports connects air blast; Another air port is closed, and opens during lime-ash in the fire grate for clearance chamber, once discharges with the pressure of air blast.Blowing with air blast in the igniting back, can regulate the air output of air blast according to combustion case.Each fire bars is dried in stove simultaneously, and vertical tube is after-blow in burner hearth, and abundant because of oxygen supply, burning can be accomplished and improve using energy source and smoke abatement and dust control fully.But adopt the fire grate energy savings 43.75% of this programme after measured; Aspect smoke abatement and dust control, reached 1 grade of Lin Geman coefficient (with 3～5 grades of common fire grate flue dust Da Lingeman coefficients, China's atmosphere law regulation fume amount should be greater than 1.1 grades of Lin Geman coefficients).

Use this energy-conservation fire grate to compare with the common fire grate in the prior art and can embody following superiority: 1. dry to furnace bottom through a plurality of apertures, dry in burner hearth through vertical tube, make burning fully, energy-saving effect is remarkable; 2. the thorough smoke medicining dust-removing effect of stove internal combustion is good, satisfies the requirement of China's atmosphere method; 3. dry in fire bars, good heat dissipation improves 3 times of fire bars life-spans, has also reduced the workload of maintenance; 4. it is simple in structure, and good manufacturability is convenient to make in batches promote the use of.

Description of drawings:

Fig. 1 is the top view of the energy-conservation fire grate of porous blowing combustion-supporting type.

Wherein: (1)-fire grate edge; (2)-with the fire bars of a plurality of blowing apertures; (3)-vertical tube of after-blow; (4)-air port; (5)-oblique aperture; (6)-the elbow air port of vertical tube.

Fig. 2 is the cutaway view at B-B place among Fig. 1, shows the relation at vertical tube and fire grate edge.

Fig. 3 is the cutaway view at Figure 1A-A place, shows the shape in air port.

Embodiment:

This fire grate adopts the casting of HT15-32 grey cast-iron.Aperture is that the little span of φ 4, two rows is equidistantly arranged, and spacing 20mm during fire grate cylindrical φ 380, has 114 apertures; When cylindrical is φ 480,186 apertures are arranged.Air port internal diameter 90mm.6～10 of secondary wind vertical tubes.The air output of air blast is 30m ³/ minute.This fire grate is fine through test effect, is subjected to user's welcome.

Claims

1, a kind of energy-conservation fire grate of porous blowing combustion-supporting type, it is characterized in that it has many hollow bars of a lot of blowing apertures, hollow fire grate edge, the vertical tube in the band elbow air port of many after-blows in burner hearth and two air ports on the fire grate outer edge surface are formed, fire bars and fire grate are the hollow cavitys that is communicated with, every fire bars all has a plurality of apertures of the oblique blowing of two rows on the face of burner hearth inside, the vertical tube that the band elbow air port of a plurality of after-blows is arranged on the upper surface of burner hearth inside at fire grate, each vertical tube communicates with the inner chamber at fire grate edge, upwards have in the footpath of fire grate cavity external cylindrical surface two with fire bars direction air port at angle.

2,, it is characterized in that its quantity to the inner after-blow vertical tube of burner hearth is 6～10 according to the described energy-conservation fire grate of claim 1.

3, according to the described energy-conservation fire grate of claim 1, it is characterized in that the aperture of the aperture on its fire bars is φ 3～5, the distance between the aperture is 15～25mm.

4,, it is characterized in that the angle between radially-arranged two air ports and fire bars is 20～30 ° on its external cylindrical surface according to the described energy-conservation fire grate of claim 1.