CN2467903Y

CN2467903Y - Compact type eddy heat accumulated burner

Info

Publication number: CN2467903Y
Application number: CN 01213627
Authority: CN
Inventors: 曾玉彩
Original assignee: LIANGANG DEPARTMENT HUALING PIPELINE CO LTD HUNAN
Current assignee: LIANGANG DEPARTMENT HUALING PIPELINE CO LTD HUNAN
Priority date: 2001-03-12
Filing date: 2001-03-12
Publication date: 2001-12-26
Anticipated expiration: 2011-03-12

Abstract

The utility model relates to a compact type eddy heat accumulated burner, comprising a burner tile 1, an insulation material layer 2 of a channel, a heat accumulator 4, a secondary air guide tube 5, a gas casing tube 7, a cold air jacket 9', a secondary air inlet tube 10 and an air inlet tube 15. The insulation material layer 2 of the channel is provided with a flame jet 14, the secondary air guide tube 5 and the gas casing tube 7. The heat accumulator 4 is filled in a space which is connected with a hot air jet 13 on the insulation material layer of the channel. Cold air enters a cold air chamber through the air inlet tube, flows to the hot air jet 13 by passing through the heat accumulator, and enters a hearth by mixing with gas which is jetted form the flame jet 14. The utility model is an accumulated burner with convenient installation and maintenance, and good energy-saving effect.

Description

The accumulation of heat of close-coupled eddy current is burnt and is chewed

The utility model relates to a kind of eddy current type accumulation of heat that can be applicable to metallurgical heater for rolling steel and mechanical industry annealing furnace, forge furnace etc. and burns and chew, and belongs to the F23D14/OO class.

Before the utility model, the burner and the heat storage type that are applied on the metallurgical heater for rolling steel are all selected to chew or adopt increase wall thickness degree with general heat accumulating type burning usually, heat storage is installed in accumulation of heat in the furnace wall in the middle of this, realize air heat ... these devices also are suitable for general heating furnace, in the face of environmental pollution has strict restriction, not quite suitable to burning high heat value gas, liquid, solid-fuelled heating furnace, these burners.

Task to be solved in the utility model provides a kind of compact conformation, it is easy to maintenance install to change, the more significant novel close-coupled low pressure eddy current accumulation of heat of reduction effect is burnt and chewed.

For solving the technical scheme that above-mentioned task uses be: chew with burning this close-coupled eddy current accumulation of heats burnings of composition such as chewing brick, the passage insulation bed of material, heat storage, secondary wind conduit, gas sleeve, cold wind overcoat, secondary wind inleting tube.Earlier passage is incubated the bed of material and makes a cylindrical integral, form the flame jet of toroidal in the centre of one end, at the centre of other end opened round or foursquare passage, a secondary wind of suit conduit in the middle of this passage, in the middle of secondary wind conduit, adorn a combustion gas (as coal gas) sleeve pipe again, near right gas arrival end place secondary wind inleting tube is installed at secondary wind conduit again, be evenly equipped with hot air spout at the passage insulation bed of material one end by on the periphery of flame jet, be filled with heat storage in the end spaces that links to each other with hot air spout, cold wind overcoat integral body is enclosed within on the heat storage and the passage insulation bed of material, and cold wind puts outward blast pipe and heat storage inlet is installed, the heat storage outlet, form a cold air chamber between cold wind overcoat and the heat storage, be fixed with stove skin steel plate at the skin of cold wind overcoat.The periphery of the passage insulation bed of material is tightly built one deck burning near an end of flame jet and is chewed brick.

The close-coupled eddy current accumulation of heat of adopting as above technical scheme to form is burnt to chew and is had following advantage, 1. compact conformation, installation, replacing, easy to maintenance; 2. send into that hot blast temperature in the heating furnace is the highest to be preheating to 1200 ℃, the hot blast temperature in one-period on average can reach 1100 ℃, and reduction effect can improve 20-30%; 3. combustion gas (as coal gas), hot-blast outlet pressure can normally use in low pressure (1000-1200Pa) scope.

Below in conjunction with accompanying drawing specific embodiments of the present utility model is described in further detail.

Fig. 1 is a positive cross-sectional schematic of the present utility model, also is the concise and to the point accompanying drawing of specification of the present utility model.

Fig. 2 is that the A of Fig. 1 is to schematic diagram.

Fig. 3 is that the B of Fig. 1 is to schematic diagram.

As shown in Figure 1, the utility model by burning chew brick 1, the passage insulation bed of material 2, heat storage 4, secondary wind conduit 5, gas sleeve 7, cold wind overcoat 9 ', secondary wind inleting tube 10, blast pipe 15 constitute.Have the flame jet 14 of toroidal in an end centre of the passage insulation bed of material 2, and the centre of the other end has the passage of circle (or square), one of the close flame jet 14 of this passage also is toroidal, secondary wind conduit 5 is installed in passage, and one of secondary wind conduit 5 close flame jets 14 also becomes toroidal, its physical dimension is identical with the horn mouth of the passage insulation bed of material 2, accomplishes to coincide mutually.Inner wall tube at secondary wind conduit 5 is equipped with Gas Pipe 7, this gas sleeve 7 is fixed with location-plate near a crown end of flame jet 14, on location-plate, have the indefinite secondary access opening 3 of number, and the external diameter of location-plate is slightly less than the diameter of secondary wind conduit 5 inwalls.Between the external diameter of inwall with combustion gas deferent 7 of secondary wind conduit 5 space is arranged.Have at an end of the passage insulation bed of material 2 on the location about of flame jet 14 and be evenly equipped with 6 hot air spouts 13 that specification is identical, its effect is to make combustion gas and evenly mixed combustion of hot blast, with be filled with heat storage 4 in the cone space that hot air spout 13 links to each other, cold wind overcoat 9 ' tightly the be enclosed within outside of the passage insulation bed of material 2 and heat storage 4.Cold wind overcoat 9 ' inner chamber and heat storage 4 between constitute cold air chamber 9, at the outer wall of cold air chamber 9 blast pipe 15 is installed.After on the secondary wind conduit 5 by the close cold air chamber 9 secondary wind inleting tube 10, secondary wind being installed to enter the space of passing through between secondary wind conduit 5 and the gas sleeve 7 from secondary wind inleting tube 10, flow out from secondary access opening 3; its effect be protection gas sleeve 7 Yin Wendu is too high and burn out, to prolong the service life of gas sleeve 7.Cool air hose overcoat 9 ' on heat storage inlet 6 and heat storage outlet 11 also are installed, cold wind overcoat 9 ' on also be fixed with stove skin steel plate 12, chew stopping means as burning at the heating furnace wall.With burning chew brick 1 tight build cold wind overcoat 9 ' with the skin of the passage insulation bed of material 2, constituted a complete close-coupled low pressure eddy current accumulation of heat burning like this and chewed.

Cold wind enters the gaps that cold air chamber 9 ' pass steel wire 8 enters in the heat storage 4 by blast pipe 15 and flows to hot air spout 13 (F arrow among Fig. 1), spray in the heating furnace burner hearth by hot air spout 13 again, after one-period (5 seconds-10 seconds) finishes, control system stops to send into of combustion gas (as coal gas) and cold wind automatically, air-introduced machine begins loaded-up, inner flue gas of the stove (Y arrow among Fig. 1) is flow into heat storage 4 from uniform hot air spout 13, cold air chamber 9 and blast pipe 15 are discharged in the stove, make heat storage 4 accumulation heats, be discharged into airspace when making flue-gas temperature be reduced to 50-200 ℃ at last, entire work process is by the cycle reciprocation cycle, assurance sprays into the EAT of thorax in the stove, can evenly mix with combustion gas again.

The above embodiment also is a most preferred embodiment of the present utility model.

Claims

1, a kind of close-coupled eddy current accumulation of heat is burnt and is chewed, it chews brick (1) by burning, the passage insulation bed of material (2), heat storage (4), secondary wind conduit (5), gas sleeve (7), cold wind overcoat (9 '), secondary wind inleting tube (10) and blast pipe (15) are formed, there is the flame jet (14) of toroidal in the centre that it is characterized in that the passage insulation bed of material (2) one ends, in the centre of the other end one passage is arranged, in this passage, be set with secondary wind conduit (5), gas sleeve (7) is housed in secondary wind conduit (5), near the fuel gas inlet end secondary wind inleting tube (10) is installed at secondary wind conduit (5), be evenly equipped with hot air spout (13) at the passage insulation bed of material (2) near on the periphery of flame jet (14), and with a end spaces that hot air spout (13) links to each other in be filled with heat storage (4), cold wind overcoat (9 ') integral body is enclosed within heat storage (4) and is incubated on the bed of material (2) with passage, cold wind overcoat (9 ') is equipped with blast pipe (15), heat storage inlet (6) and heat storage outlet (11), form cold air chamber (9) between cold wind overcoat (9 ') and the heat storage (4), skin at cold wind overcoat (9 ') is fixed with stove skin steel plate (12), burns and chews the skin that brick (1) is close to the cold wind overcoat (9 ') and the passage insulation bed of material (2).

2, close-coupled eddy current accumulation of heat according to claim 1 is burnt and is chewed, and it is characterized in that has the space between the outer wall of the inwall of secondary wind conduit (5) and gas sleeve (7).

3, close-coupled eddy current accumulation of heat according to claim 1 and 2 is burnt and is chewed, and it is characterized in that having twice aeration hole (3) on the location-plate of gas sleeve (7) near an end of flame jet (14).