SU1688043A2 - Burner device - Google Patents

Description

one

(61) 1603139

(21) 3502706/06

(22) 10/18/82

(46) 10/30/91. Bul №40

(71) Moscow Energy Institute

(72) A.A. Bobkoo, L.K. Khokhlov and V.I. Kormilitsyn

(53) 662.951.2 (088.8)

(56) USSR author's certificate

Mg 1B03139, class F 23 D 17/00, 1981,

(54X57) BURNER DEVICE according to ed. St. No. 1603139, characterized in that, in order to reduce the content of harmful impurities in the combustion products, the swirler is made with a water-cooled cavity connected to the annular gap between the casing and the central fuel pipe through radial channels located along the air following the radial outlet nozzles of the specified fuel pipe.

The invention relates to energy and can be used for burning fuel in combustion chambers and furnaces of various heat engineering units.

A burner device is known, comprising an air-supplying casing with coaxially mounted central fuel tube and peripheral fuel manifold with radial outlet nozzles, respectively, as well as a swirler, the outlet nozzles of the pipe and the collector are opposite, and the swirler is placed behind the latter along the air path and is designed as auger.

The disadvantage of this device is the relatively high content of aqueous impurities in the combustion products.

The purpose of the invention is to reduce the content of harmful impurities in the combustion products.

The proposed burner device comprises an air supply housing with coaxially mounted central fuel pipe and a peripheral fuel collector with radial output nozzles, respectively, as well as a swirler, the outlet nozzles of the pipe and the collector are opposite, and the evacuator is positioned behind the latter along the stream and made in the form of a screw, the swirler is made with a water-cooled cavity connected to the end gap between the casing and the central fuel pipe by means of radial channels, placed along the air path behind the radial outlet nozzles of the specified fuel pipe.

FIG. 1 shows the proposed burner, longitudinal section; in fig. 2 is a section A-A in FIG. 1.

The proposed burner device comprises an air inlet housing 1 with coaxially mounted central fuel pipe 2 and peripheral fuel manifold 3 with radial outlet nozzles A and 5, respectively, and a TNCGR with sprike 6. Output nozzles 4 and 5 of pipe 2 and collector 3, respectively, are opposite , and the swirler 6 is placed behind the last air campaign and is made in the form of a screw. The swirl 6 is made with a water-cooled cavity 7 connected to the annular gap 8 between the housing 1 and the central fuel pipe 2 by means of radial channels 9 placed along the air course behind the radial outlet nozzles 4 of the specified fuel pipe 2.

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The burner device operates as follows.

Air is supplied to the housing 1, which is evenly distributed into each inter-blade channel of the swirler 6. At the inlet of the swirler 6 along the air flow, fuel is supplied from the peripheral fuel collector 3 and the central fuel pipe 2 through the corresponding outlet nozzles 5 and 4. At the outlet of the housing 1 a cyclone-flowing jet of air is formed with finely dispersed and evenly mixed with the air droplets of fuel, which is released into the combustion space. When burning the mixture in

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Combustion products are formed in the combustion space. The water from the cavity 7 is injected into the inlet swirler 6 through the radial channels 9, as a result of which a fine mixture of water and an air-fuel mixture is formed at the outlet of the device.

Since the swirler is made with a water-cooled cavity connected to the annular gap between the casing and the central fuel pipe by means of radial channels placed along the air path behind the radial outlet nozzles of the specified fuel pipe, the content of harmful impurities in the combustion products decreases.

SS $

figure 1

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Claims (1)

BURNING OCH NOAH DEVICE by author. St. No. 1603139, characterized in that, in order to reduce the content of harmful impurities in the combustion products, the swirler is made with a water-cooled cavity connected to the annular gap between the casing and the central fuel pipe through radial channels located along the air path behind the radial outlet nozzles of the specified fuel pipe.