CN2252290Y

CN2252290Y - Hot-air whirlwind gas burner

Info

Publication number: CN2252290Y
Application number: CN95237500U
Authority: CN
Inventors: 任秀成
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-28
Filing date: 1995-08-28
Publication date: 1997-04-16
Anticipated expiration: 2005-08-28

Abstract

The utility model relates to a gas burner. The utility model discloses a hot-air whirlwind gas burner used for obviously raising heat load and reducing gas consumption. The utility model comprises an annular air preheating box, an upright cylindrical gas burner and a height adjusting device thereof. A spiral partition board is arranged in the air preheating box, and the top of the air preheating box is provided with a reverse whirl baffle; the top of the gas burner is provided with transversal fire hole clusters. Air with certain pressure is changed into hot-air whirlwind through the air preheating box; the hot-air whirlwind meets gas in an intersection angle and collides with the inverse whirl baffle so as to be sufficiently mixed with the gas, so the combustion process is intensified. The utility model is suitable for hotels, hostels, restaurants, canteens and homes.

Description

Hot blast eddy flow gas combustion apparatus

The utility model relates to a kind of gas combustion apparatus.

Multiple gas kitchen ranges is arranged in the market, wherein family expenses is in the majority, what the confession catering trade was used seldom and only is the former simple amplification, its formation comprises burner and regulating and controlling mechanism thereof, combustion gas borrows the injector of burner afterbody to suck cold air, enter burner head after the mixing, on the fire hole of fire hole that burner body and fire lid are formed or a plurality of vertical settings, burn, its weak point be air with combustion gas mixing before without preheating and do not form eddy flow, so consumption gas is many, it is insufficient to burn, and thermic load is not high.

The purpose of this utility model is to overcome the weak point in the above-mentioned background technology and a kind of hot blast eddy flow gas combustion apparatus is provided, and this device mainly is applicable to hotel, hostel, wineshop, dining room, also is suitable for family expenses.

The purpose of this utility model reaches by taking following proposal:

1, around burner, establishes the annular air preheating cabinet of bottom lock, its inner chamber is that combustion chamber is circle or polygon, this casing divides two-layer diametrically, skin is a thermal insulation layer, its top is the inverted cone table top, internal layer then is divided into two-layer (upper strata is a heating clamber, and lower floor is a diffluence room) up and down, and its middle part has at the spiral septum that accounts on the circumference about 460 degree; Airduct passes thermal insulation layer and tangentially feeds heating clamber; Gas joint and burner are contained in intracavity bottom central authorities; Uniform several through holes on the Inner of diffluence room wall; Diffluence room Inner chamber is greater than heating clamber Inner chamber.

2, uniform several contrary eddy flow baffle plates on the inverted cone table top at thermal insulation layer top.

3, redesign burner, the upright pipe of upright pipe that new burner is a top seal or band tapering, the Inner screw thread is arranged at its endoporus bottom, and its fire hole group is uniform on the cross section of pipe top, and the axis of fire hole all radially becomes angle with pipe; The height of this burner can be regulated, and concrete scheme is to make the external screw thread that matches with the burner internal thread on gas joint top, establishes several packing rings below the fixing nut of gas joint on the air preheat case.At the air preheat box cavity a plurality of burners can be set.

The utility model is compared background technology and is had following useful effect: because air becomes eddy flow to enter combustion chamber by the air preheat box-shaped, and combustion gas is submerged in the air swirl, again because the effect of the contrary eddy flow baffle plate in thermal insulation layer top, increase the disturbance and the turbulent fluctuation of mixed airflow, strengthened mixed process, in addition, the recirculating zone at eddy flow center makes the part high temperature gases recirculating and mixes gas phase and mix, heat gaseous mixture, improved the temperature of combustion zone, strengthened combustion process; Simultaneously,, also strengthened combustion process,, can reach 20000 kilocalories/hour, also significantly reduced air consumption, on average be about 0.35 kilogram/hour so significantly improved thermic load because air has improved ignition temperature, flame propagation velocity and burning velocity through preheating.

Description of drawings: Fig. 1, hot blast eddy flow gas combustion apparatus front view; Fig. 2, hot blast eddy flow gas combustion apparatus vertical view; Fig. 3, dividing plate figure; Fig. 4, burner fire hole group cutaway view.

The utility model is done further narration below in conjunction with the accompanying drawing illustrated embodiment:

The wind regime that this device uses can be a compressed air, can be from air blast, and also can be from funnel-shaped natural air exhaust pipeline.Follow after airduct 3 enters air preheat case 1 as the wind of certain pressure, promptly form the hot blast eddy flow at heating clamber Inner, this eddy flow follows dividing plate 2 and enters diffluence room, enters combustion chamber and quickens from diffluence room again and revolve; Hot blast eddy flow around burner 9 becomes the angle of cut to meet with the combustion gas that sprays from the fire hole group, and combustion gas is submerged in the hot blast eddy flow and becomes gaseous mixture, and mixed process has been strengthened in contrary eddy flow baffle plate 5 collisions at this gaseous mixture and thermal insulation layer 4 tops.Air preheat case 1 has the bellows chamber effect concurrently.

Combustion gas enters burner 9 by gas joint 6, because the combustion gas entering opening is little, burner 9 Inner holes are big, so the Inner hole has the gas bag effect.When need made burner 9 liftings, the packing ring 7 below the changeable nut 8 to change flame profile, adapted to the needs of different culinary art effects.

For improving effect of heat insulation, on air preheat case 1 top, Inner wall and contrary eddy flow baffle plate 5, all be coated with infra-red paint.

This device can add regulating and controlling mechanism etc. and constitute movably gas-cooker, also can be embedded in immovable catering trade of being built into brick and fire clay with becoming in the household kitchen range.

Claims

1, hot blast eddy flow gas combustion apparatus comprises airduct (3) and gas joint (6), it is characterized in that:

1.1 an air preheat case (1) is arranged;

1.2 the right circular cylinder shape burner (9) and the height adjustment mechanism thereof that are provided with at air preheat case (1) center are arranged, and the fire hole group is in burner (9) top, horizontal setting.

2 hot blast eddy flow gas combustion apparatus according to claim 1, it is characterized in that: described air preheat case (1) is the annular casing of bottom lock, its inner chamber is circle or polygon; This casing divides two-layer diametrically, and skin is thermal insulation layer (4), and its top is the inverted cone table top, and internal layer then is divided into two-layer up and down, and the upper strata is a heating clamber, and lower floor is a diffluence room, and its middle part has at the spiral septum (2) that accounts on the circumference about 460 degree; Airduct (3) passes thermal insulation layer (4) and tangentially feeds heating clamber; Gas joint (6) and burner (9) are contained in intracavity bottom central authorities; Uniform several through holes on the Inner of diffluence room wall; Diffluence room's inner chamber is greater than heating clamber Inner chamber.

3, hot blast eddy flow gas combustion apparatus according to claim 2 is characterized in that: uniform several contrary eddy flow baffle plates (5) on the inverted cone table top at thermal insulation layer (4) top.

4, hot blast eddy flow gas combustion apparatus according to claim 3, it is characterized in that: described burner (9) is the upright pipe of the upright pipe of top seal or band tapering, internal thread is arranged at its endoporus bottom, its fire hole group is uniform on the cross section of pipe top, and the axis of fire hole all radially becomes angle with pipe.

5, hot blast eddy flow gas combustion apparatus according to claim 4, it is characterized in that: the height adjustment mechanism of described burner (9), be the external screw thread that matches with burner (9) internal thread to be arranged, several pad circles (7) arranged below the nut (8) of air preheat case (1) intracavity bottom central authorities at fixing gas joint (6) on gas joint (6) top.

6, hot blast eddy flow gas combustion apparatus comprises burner, airduct (3) and gas joint (6), it is characterized in that: an air preheat case (1) is arranged.

7, hot blast eddy flow gas combustion apparatus according to claim 6, it is characterized in that: described air preheat case (1) is the annular casing of bottom lock, its inner chamber is circle or polygon; This casing divides two-layer diametrically, and skin is thermal insulation layer (4), and its top is the inverted cone table top, and internal layer then is divided into two-layer up and down, and the upper strata is a heating clamber, and lower floor is a diffluence room, and its middle part has at the spiral septum (2) that accounts on the circumference about 460 degree; Airduct (3) passes thermal insulation layer (4) and tangentially feeds heating clamber; Gas joint (6) and burner (9) are contained in intracavity bottom central authorities; Uniform several through holes on diffluence room's inwall; Diffluence room's inner chamber is greater than the heating clamber inner chamber.

8, hot blast eddy flow gas combustion apparatus according to claim 7 is characterized in that: uniform several contrary eddy flow baffle plates (5) on the inverted cone table top at thermal insulation layer (4) top.