CN2184149Y

CN2184149Y - Two purpose cooking stove

Info

Publication number: CN2184149Y
Application number: CN 93232632
Authority: CN
Inventors: 魏登文; 魏登金
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-30
Filing date: 1993-12-30
Publication date: 1994-11-30
Anticipated expiration: 2003-12-30

Abstract

The utility model relates to a combustion device using fluid fuels, which is particularly suitable for foodstuff industries. The utility model is characterized in that an air inlet for natural air blow is positioned on the tangential direction of an annular air mixing chamber and an air inlet sleeve is arranged in a range burner body, so in the processes of electric air blow, gas and air can be evenly mixed for twice. The utility model solves the ubiquitous problems of the common dual-purpose kitchen range, such as uneven mixed gas, multiple waste gas, non enough air quantity in the processes of air blow and big air inlet resistance. The utility model has the advantages of completeness of combustion, high combustion temperature, little waste gas, etc.

Description

Two purpose cooking stove

The utility model relates to a kind of combustion apparatus that uses fluid fuel, the air blast of particularly a kind of both available power, the Two purpose cooking stove of available funnel draught again.

At present, the stove and accessory of electric power air blast is generally adopted in the catering trade, but owing to when having a power failure, can't use, and cause inconvenience.But occurred both electrification air blast recently, the stove and accessory of available funnel draught is 2055569u as publication number again, and application number is that 89216095.0 Chinese patent discloses a kind of such stove and accessory.But this stove and accessory is owing to there is following defective in structural reason: the first, and during funnel draught, intake resistance is big, the air capacity deficiency, air and combustion gas mixing are inhomogeneous in addition, cause fuel gas buring insufficient, and ignition temperature does not reach instructions for use; The second, also there is the uneven problem of mixed gas during the electric power air blast; The 3rd, air distribution plate is yielding, and kitchen range is shorter service life; The 4th waste gas is many.

The purpose of this utility model designs exactly a kind ofly can use the electric power air blast, and available again funnel draught can both make combustion gas in both cases, and air evenly mixes, and fully burning, has the ignition temperature height, the kitchen range that waste gas is few.

The utility model is achieved in that it has the kitchen range body.The air inlet that is covered with the mist of the air inlet of mist of the air distribution plate of aperture and electronic air blast and funnel draught on the face, the annular chamber of using when funnel draught is arranged in the kitchen range body, and top is taper, the bottom is columniform combustion chamber, on the tangential direction of the annular mixing chamber of using when the mist air inlet was positioned at funnel draught when its improvements were funnel draught; The round cup shape air inlet cover of hollow is equipped with in the mist air inlet top of using when the middle part in the kitchen range body, electronic air blast, and the face of cylinder of air inlet cover is evenly equipped with the 5-10 round on axially, and every row 5-10 hole is uniform, and the aperture is the 4-16 millimeter; Air distribution plate is contained on the shoulder on the face of cylinder of air inlet cover top and kitchen range body inside, like this below air distribution plate, and the annular mixing chamber of using when forming electronic air blast between air inlet cover and the kitchen range body.

When funnel draught, the pipeline of outer directly attaching combustion gas of air inlet and air also can be equipped with accurate wind and chew, and outside accurate wind is chewed the combustion gas speedup is housed and chews, and two internal channels of chewing are all taper.

The tapering of the internal channel that speedup is chewed is 1/4-1/7, and the hole diameter of gas outlet end is the 1.5-3 millimeter.

Be that mist is flowed from air inlet cover annular mixing chamber to the outside equably during electronic air blast, every adjacent two rows' the holes pitch of holes that on circumference, staggers mutually half on the air inlet cover face of cylinder.

In order to keep the advantage of fluidized bed furnace, this kitchen range can be on air distribution plate, and column part is equipped with the alundum (Al particle in the combustion chamber.

The utility model is when funnel draught, and mixed gas inlet is positioned on the tangential direction of annular mixing chamber, so the fashionable resistance of mixed airflow is very little, it is happy to flow along annular mixing chamber, can fully make the two even mixing.Again owing to speedup has been installed chews, combustion gas is chewed the big end of the conical surface from speedup and is advanced, and from bringing out for a short time, flow velocity accelerates during outflow, thereby extraneous air is chewed and the passage of accurate wind between chewing enters mixed gas inlet, air inflow abundance in a large number, rapidly by speedup.During electronic air blast, after combustion gas, air enter kitchen range, mix for the first time in the air intake cover earlier, overlap circumferential aperture through air inlet again and enter annular mixing chamber and mix for the second time, mixing is very even like this.So no matter this kitchen range can both make gas mix in electronic air blast when still being funnel draught, sufficient combustion, waste gas is few.The alundum (Al particle can be placed in this kitchen range combustion zone in addition, has kept the advantage of fluidized bed furnace, makes efficiency of combustion, caloric value higher.Temperature can reach 900 ℃-1100 ℃ during this kitchen range funnel draught, and temperature can reach 1100 ℃-1550 ℃ during electronic air blast, and the flare height can reach the 400-600 millimeter.

Fig. 1 is the front section view of this kitchen range;

Fig. 2 is the vertical view of this kitchen range;

Below in conjunction with accompanying drawing the utility model is described in detail.

The annular mixing chamber 3 that the outer wall of kitchen range body 1 is inboard when being funnel draught has air inlet 4 on the tangential direction of annular mixing chamber 3, in the outside of air inlet 4 accurate wind is housed and chews 5, and speedup is chewed 6 and chewed 5 outsides with screw threads for fastening at accurate wind.Speedup chew 6 and accurate wind chew 5 internal channel and be taper, the hole diameter in the exit that speedup is chewed is 2.5 millimeters, its internal taper is 1/5, accurate wind chew 5 and speedup be air intlet 7 between chewing 6.

When funnel draught, the burnt gas switch of closing on the electronic air blast pipeline cuts down, and the burnt gas switch of opening on the funnel draught pipeline cuts down.Combustion gas flows into speedup and chews 6, chews 6 o'clock because the aperture diminishes in the outflow speedup.Gas flow rate is accelerated, and has driven extraneous air and has flowed into from air intlet 7, and combustion gas and air evenly mix in circumference flows in annular mixing chamber 3, enters combustion chamber 13 burnings through the hole 8 on annular mixing chamber 3 tops.

The air inlet 14 of gas-air body is positioned at the center of the supporting plate 2 that is fastened on kitchen range body 1 bottom during electronic air blast.On the top of import 14, external diameter be housed be 69 millimeters air inlet cover 9, on the face of cylinder of air inlet cover 9 30 holes 10 are arranged, axially divide five rows, 6 holes of every row are uniform, and the aperture is 6 millimeters, every adjacent two rounds, pitch of holes staggers on circumference half.Air distribution plate 12 is positioned on the face of cylinder shoulder of air inlet cover 9 and kitchen range body 1.Above the air distribution plate 12 is combustion chamber 13, and the alundum (Al particle is placed on the column part of combustion chamber 13.

During electronic air blast, the burnt gas switch of closing on the funnel draught pipeline cuts down, and the burnt gas switch of opening on the electronic air blast pipeline cuts down.Combustion gas and Air mixing gas enter the air inlet cover 9 from air inlet 14 and mix, and 10 enter annular mixing chamber 11 and fully mix once more through the hole again, and then, the hole of passing on the air distribution plate 13 enters combustion chamber 13, burns by stratum granulosum.

The diameter of combustion chamber 13 column parts is 180 millimeters in the present embodiment.

Claims

1, a kind of Two purpose cooking stove, it has the kitchen range body, the air inlet of mist when the air inlet of mist and funnel draught when being covered with the air distribution plate of aperture and electronic air blast on the face, the annular mixing chamber of using when funnel draught is arranged in the kitchen range body, and top is that tapered lower portion is columniform combustion chamber, it is characterized in that:

A is on the tangential direction of the annular mixing chamber of using when the mist air inlet is positioned at funnel draught during funnel draught;

B, at kitchen range body middle part, the round cup shape air inlet cover of hollow is equipped with in the mixed gas inlet top of electronic air blast, and uniform 5-10 round is axially gone up on the face of cylinder of air inlet cover, and every row has 5-10 hole uniform, and the aperture is the 4-16 millimeter;

C, air distribution plate are contained on the shoulder on the face of cylinder of air inlet cover top and kitchen range body inside;

D, between air inlet cover and kitchen range body, the annular mixed air vessel that uses when forming electronic air blast below the air distribution plate.

2, Two purpose cooking stove according to claim 1 is characterized in that: accurate wind is housed outside the air inlet of funnel draught chews, accurate wind is chewed and the combustion gas speedup is housed is chewed, and two internal channels of chewing are taper.

3, Two purpose cooking stove according to claim 2 is characterized in that: the tapering that speedup is chewed internal channel is 1/4-1/7, and the hole diameter of the port of export is the 1.5-3 millimeter.

4, according to claim 1 or 2 or 3 described Two purpose cooking stoves, it is characterized in that: air intake puts adjacent two rounds in the circumference pitch of holes that staggers mutually half.

5, Two purpose cooking stove according to claim 4 is characterized in that: on air distribution plate, the combustion chamber column part is equipped with the alundum (Al particle.