CN103897711A - Heat exchange device for transversely continuous heating of vertical coke discharging type coke oven - Google Patents
Heat exchange device for transversely continuous heating of vertical coke discharging type coke oven Download PDFInfo
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Abstract
The invention provides a heat exchange device for transversely continuous heating of a vertical coke discharging type coke oven. The heat exchange device is distributed at two sides or one side of the coke oven and comprises a lean gas heat exchange chamber and an air heat exchange chamber which are arranged side by side and identical in structure, wherein a plurality of stand pipes are arranged in the heat exchange chamber; when a combustion chamber of the coke oven is heated by adopting lean gas, the heat exchange chamber can be used for heat exchange between high temperature flue gas released by the combustion chamber and the lean gas or air among the pipes and dividing walls in the pipes; and when the combustion chamber of the coke oven is heated by adopting coke oven gas, only flue gas and air need to be subjected to heat exchange, and the lean gas heat exchange chamber is used as an air sub-heat exchange chamber. The heat exchange device is transversely connected to the combustion chamber; gas is heated in the heat exchange device and continuously and reversely exchanges heat with discharged flue gas in the dividing walls; the upper and down complicated structure relationship of a heat storage chamber of a conventional coke oven is simplified; heat-retaining masses-lattice bricks, long and short chutes in a chute zone and equipment such as an exhaust gas disk and an exchanger can be omitted; the quantity of special-shaped bricks is reduced; the heating gas is convenient to adjust; and quantitative heating and uniform heating are realized, thus the investment is reduced, and the production operation is simplified.
Description
Technical field
The present invention relates to a kind of heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln, belong to metallurgical industry coking industry coking technology field.
Background technology
The heating system of existing pit kiln is distributed in San Ge region, coke oven upper, middle and lower, in upper of furnace body, dozens of coking chamber and dozens of combustion chamber distribute alternately, each combustion chamber is made up of more than 30 flues, every two flues twinflue that partners, the combustion gas flowing that one of them walks to rise, the flue gas that another walks to decline, the cycle hockets.At body of heater middle part, there is equally dozens of regenerator, heat storage is equipped with in inside, heat storage absorbs the waste heat of combustion chamber decline flue flue gas in one-period, the heated air that preheating is risen in next cycle, regenerator top is connected by long and short chute with bottom, combustion chamber, and regulates flue heating gas flow by the adjusting brick of outlet.At lower portion of furnace body, the double-edged fine-toothed comb brick that horizontal bottom flue distributes by its top is connected with regenerator bottom, double-edged fine-toothed comb brick distributes vertical vertical discharged gas fume or the heated air that become laterally/laterally become for adjusting, horizontal bottom flue communicates with a point flue by exhaust gas disc, switch heated air and discharged gas fume by exchange board, at lower portion of furnace body also distributing heated air pipeline and reversing valve, barometric damper etc.
As can be seen here, existing heating coke-oven system upper, middle and lower irrational distribution, accumulation of heat region, middle part, bottom heated air and flue gas turnover region, lower region in occupation of the burnt pit kiln of vertical row's formula for gravity coke discharging, laterally discharge of the coke and have to, by means of auxiliary coke over machinery, have problem of environmental pollution; Be connected with combustion chamber by long and short chute at regenerator top, and regulate the flow of flue heated air by adjusting brick, be connected with horizontal bottom flue by double-edged fine-toothed comb brick at regenerator bottom, and regulate heated air and discharged gas fume carry out horizontal stroke/vertical or perpendicular/horizontal break-in of air-flow and the shunting of air-flow or conflux by double-edged fine-toothed comb brick, furnace binding complexity, gas flow-regulating operational difficulty, systemic resistance is large, and initial cost is high.
Summary of the invention
The object of this invention is to provide a kind of heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln, to overcome the deficiencies in the prior art.
Technical conceive of the present invention is both sides or a side that this heat-exchanger rig is distributed in to pit kiln, and the critical positions of having vacateed coking chamber bottom, for the vertical coke discharging of pit kiln provides prerequisite, makes coke making process flow process more scientific and reasonable; This horizontal Continuous Heat Transfer device can change the upper and lower complicated structural relation of existing pit kiln regenerator, can regulate heating gas flow outward at body of heater, realizes and determines heat homogeneous heating, reduces investment.
For a heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln, it is characterized in that this heat-exchanger rig is distributed in both sides or a side (not in centre) of pit kiln, thereby provide requisite space for vertical coke discharging; Comprise and being arranged side by side and low-grade gas Heat Room and air heat-exchange chamber that structure is identical; Described low-grade gas Heat Room internal upper part and bottom are respectively equipped with the tube sheet of the multiple perforation of surface band, between upper lower tubesheet, be provided with multiple standpipes that connect respectively upper lower tubesheet perforation, in low-grade gas Heat Room, there is central partition plate handle riser to be divided into inside and outside two groups, central partition plate upper end and upper tubesheet are connected, lower end is to leaving tube lane baffling hole between lower tubesheet, between upper lower tubesheet, be horizontally disposed with traverse baffle between multiple pipes, forming muitishell heat exchanger channels;
The top that upper tubesheet is positioned at central partition plate inner side part is upper flue gas shunting passage, and the top that upper tubesheet is positioned at central partition plate Outboard Sections is the upper flue gas converging channel isolated with described upper flue gas shunting passage,
The below that lower tubesheet is positioned at central partition plate inner side part is lower flue gas converging channel, and the below that lower tubesheet is positioned at central partition plate Outboard Sections is the lower flue gas shunting passage communicating with described lower flue gas converging channel,
Below lower tubesheet middle part, be provided with pipe interior passageway baffling hole, form two tube side heat exchanger channels, this pipe interior passageway traverse baffle between lower flue gas converging channel and lower flue gas shunting passage,
The upper flue gas shunting passage that is positioned at upper tubesheet top is provided with gas approach, and the upper flue gas converging channel that is positioned at upper tubesheet top is provided with Heat Room exhanst gas outlet; Have low-grade gas entrance to communicate with tube lane in described low-grade gas Heat Room upper outside, have low-grade gas outlet in described low-grade gas Heat Room upper inner, this low-grade gas outlet communicates with the low-grade gas vertical passageway that is arranged on low-grade gas Heat Room inner side;
Described low-grade gas vertical passageway is provided with low-grade gas towards the bottom of combustion chamber one side and divides outlet;
The low-grade gas entrance of described low-grade gas Heat Room, low-grade gas outlet are called gas inlet, air vout in air heat-exchange chamber;
The air vout of air heat-exchange chamber communicates with the air gas vertical passageway that is arranged on air heat-exchange indoor; Leave air in air vertical passageway towards the bottom of combustion chamber one side and divide outlet.
Described low-grade gas divide outlet and air divide outlet respectively by with variable valve low-grade gas pipe connecting be connected with main burner with the air pipe connecting with variable valve.
Between described low-grade gas pipe connecting and air pipe connecting, be provided with the bypass pipe with stopping valve.
Low-grade gas vertical passageway is provided with multiple low-grade gas towards the bottom of combustion chamber one side and divides outlet, and air vertical passageway is left multiple air towards the bottom of combustion chamber one side and divided outlet,
The low-grade gas of the lowest layer divide outlet and air divide outlet respectively by with variable valve low-grade gas pipe connecting be connected with main burner with the air pipe connecting with variable valve;
Remaining every a pair of low-grade gas divide outlet and air divide outlet respectively by by with variable valve low-grade gas pipe connecting be connected with temperature element with auxiliary burner with the air pipe connecting with variable valve.
Between described low-grade gas pipe connecting and air pipe connecting, be provided with the bypass pipe with stopping valve.
Above-mentioned main burner and auxiliary burner are also connected with the coke-oven gas pipe connecting with stopping valve.
Advantage of the present invention: the heat-exchanger rig of vertical coke discharging formula pit kiln, heat-exchanger rig divides and is located at pit kiln both sides or a side, for the vertical coke discharging of pit kiln provides prerequisite; Heat-exchanger rig is laterally connected with combustion chamber, in heat-exchanger rig heated air and discharged gas fume continuously, adverse current, partition heat exchange, simplify the upper and lower complicated structural relation of existing pit kiln regenerator, can cancel heat storage--checker brick, cancel the short chute of the chute head of district, cancel the equipment such as exhaust gas disc and exchange board, reduce special shaped brick quantity, heated air is easy to adjust, can realize quantitative heating homogeneous heating.Therefore, reduce investment, simplified production operation.
Brief description of the drawings
Fig. 1 is side sectional view of the present invention.
Fig. 2 is the longitudinal sectional view (A-A) of vertical coke discharging formula pit kiln.
Fig. 3 is the transverse sectional view (B-B) of the present invention while being distributed in vertical coke discharging formula pit kiln both sides.
Fig. 4 is the side sectional view (C-C) of the present invention while being distributed in vertical coke discharging formula pit kiln both sides,
It is the side sectional view of combustion chamber and low-grade gas Heat Room.
Fig. 5 is the side sectional view (D-D) of the present invention while being distributed in vertical coke discharging formula pit kiln both sides,
It is the side sectional view of combustion chamber and air heat-exchange chamber.
Fig. 6 is that the present invention is distributed in the transverse sectional view of vertical coke discharging formula pit kiln when one-sided (in figure not the tamping charging car containing opposite side).
Fig. 7 is that the present invention is distributed in the side sectional view (E-E) of vertical coke discharging formula pit kiln when one-sided,
Be the side sectional view of combustion chamber and low-grade gas Heat Room, in figure, do not contain tamping charging car.
Fig. 8 is that the present invention is distributed in the side sectional view (F-F) of vertical coke discharging formula pit kiln when one-sided,
Be the side sectional view of combustion chamber and air heat-exchange chamber, in figure, do not contain tamping charging car.
Fig. 9 is the coking chamber of vertical coke discharging formula tampering coking oven and the side sectional view of opposite side tamping charging car.
Wherein, 1, coking chamber, 2, combustion chamber, 4, horizontal quirk, 7, tamping charging car, 8, main burner, 9, auxiliary burner, 10, temperature element,
11, low-grade gas pipe connecting, 12, air pipe connecting, 13, coke-oven gas pipe connecting, 14, bypass pipe, 15, smoke tube, 16, gas fume of combustion chamber outlet,
17, standpipe, 18, central partition plate, 19, tube sheet, 20, traverse baffle between pipe, 21, pipe interior passageway baffling hole, 22, tube lane baffling hole, 23A, upper flue gas shunting passage, 23B, lower flue gas shunting passage, 24A, upper flue gas converging channel, 24B, lower flue gas converging channel, 25, gas approach, 26, exhanst gas outlet, 27, low-grade gas entrance, 28, gas inlet, 29, low-grade gas outlet, 30, air vout, 31, low-grade gas vertical passageway, 32, air vertical passageway, 33, low-grade gas divides outlet, 34, air divides outlet, 35, low-grade gas Heat Room, 36, air heat-exchange chamber, 37, air distribution plate, A3, auto stove-door, A4, the hole of coalingging, A14, wing furnace door.
Embodiment
As shown in Fig. 1～5, a kind of heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln, is characterized in that this heat-exchanger rig is distributed in both sides or a side (not in centre) of pit kiln, thereby provides requisite space for vertical coke discharging; Comprise and being arranged side by side and low-grade gas Heat Room 35 and air heat-exchange chamber 36 that structure is identical; Described low-grade gas Heat Room 35 internal upper parts and bottom are respectively equipped with the tube sheet 19 of the multiple perforation of surface band, between upper lower tubesheet 19, be provided with multiple standpipes 17 that connect respectively upper lower tubesheet perforation, in low-grade gas Heat Room 35, there are central partition plate 18 handle risers 17 to be divided into inside and outside two groups, central partition plate 18 upper ends and upper tubesheet 19 are connected, lower end is to leaving tube lane baffling hole 22 between lower tubesheet 19, between upper lower tubesheet 19, be horizontally disposed with traverse baffle 20 between multiple pipes, form muitishell heat exchanger channels;
The top that upper tubesheet 19 is positioned at central partition plate 18 inner side parts is upper flue gas shunting passage 23A, and the top that upper tubesheet 19 is positioned at central partition plate 18 Outboard Sections is the upper flue gas converging channel 24A isolated with described upper flue gas shunting passage 23A,
The below that lower tubesheet 19 is positioned at central partition plate 18 inner side parts is lower flue gas converging channel 24B, and the below that lower tubesheet 19 is positioned at central partition plate 18 Outboard Sections is the lower flue gas shunting passage 23B communicating with described lower flue gas converging channel 24B,
Below lower tubesheet 19 middle parts, be provided with pipe interior passageway baffling hole 21, form two tube side heat exchanger channels, this pipe interior passageway traverse baffle 21 between lower flue gas converging channel 24B and lower flue gas shunting passage 23B,
The upper flue gas shunting passage 23A that is positioned at upper tubesheet 19 tops is provided with gas approach 25, and the upper flue gas converging channel 24A that is positioned at upper tubesheet 19 tops is provided with Heat Room exhanst gas outlet 26; There is low-grade gas entrance 27 to communicate with tube lane in described low-grade gas Heat Room 35 upper outside, have low-grade gas outlet 29 in described low-grade gas Heat Room 35 upper inner, this low-grade gas outlet 29 communicates with the low-grade gas vertical passageway 31 that is arranged on low-grade gas Heat Room 35 inner sides;
Described low-grade gas vertical passageway 31 is provided with low-grade gas and divides outlet 33 towards the bottom of combustion chamber 2 one sides;
The low-grade gas entrance 27 of described low-grade gas Heat Room 35, low-grade gas outlet 29 are called gas inlet 28, air vout 30 in air heat-exchange chamber 36;
The air vout 30 of air heat-exchange chamber 36 communicates with the air gas vertical passageway 32 that is arranged on 36 inner sides, air heat-exchange chamber; Leave air in air vertical passageway 32 towards the bottom of combustion chamber 2 one sides and divide outlet 34.
As shown in Figure 4,5, described low-grade gas divide outlet 33 and air divide outlet 34 respectively by with variable valve low-grade gas pipe connecting 11 be connected with main burner 8 with the air pipe connecting 12 with variable valve.
As shown in Figure 3, between described low-grade gas pipe connecting 11 and air pipe connecting 12, be provided with the bypass pipe 14 with stopping valve.
As shown in Figure 4,5, low-grade gas vertical passageway 31 is provided with multiple low-grade gas and divides outlet 33 towards the bottom of combustion chamber 2 one sides, and air vertical passageway 32 is left multiple air and divided outlet 34 towards the bottom of combustion chamber 2 one sides,
The low-grade gas of the lowest layer divide outlet 33 and air divide outlet 34 respectively by with variable valve low-grade gas pipe connecting 11 be connected with main burner 8 with the air pipe connecting 12 with variable valve;
Remaining every a pair of low-grade gas divide outlet 33 and air divide outlet 34 respectively by by with variable valve low-grade gas pipe connecting 11 be connected with temperature element 10 with auxiliary burner 9 with the air pipe connecting 12 with variable valve.
As shown in Figure 3, between described low-grade gas pipe connecting 11 and air pipe connecting 12, be provided with the bypass pipe 14 with stopping valve.
As shown in Figure 4, above-mentioned main burner 8 and auxiliary burner 9 are also connected with the coke-oven gas pipe connecting 13 with stopping valve.
Pit kiln forms coke oven main body by multiple coking chambers that are arranged side by side 1 and combustion chamber 2 conventionally, N coking chamber 1 is furnished with N+1 combustion chamber and makes each coking chamber 1 both sides be provided with combustion chamber 2, when heat-exchanger rig of the present invention is only distributed in coke oven main body when one-sided, heat-exchanger rig quantity is identical with combustion chamber 2 and corresponding connected one by one, each heat-exchanger rig comprises a low-grade gas Heat Room 35 and an air heat-exchange chamber 36, and this heat-exchanger rig both can be independent of one another, also can as Fig. 6, connect successively in order and be integrally formed formula structure; In the time that heat-exchanger rig is distributed in coke oven main body both sides, heat-exchanger rig quantity is the twice of combustion chamber 2 quantity, and 2 two ends, combustion chamber connect respectively a heat-exchanger rig of homonymy, as shown in Figure 3.
The heat-exchanger rig of the present invention during as vertical coke discharging formula pit kiln Transverse Heated uses, related vertical coke discharging formula pit kiln as shown in Figure 2, be different from the coking mode that existing pit kiln one side coal opposite side discharges of the coke, be also different from that Heat Room is arranged on pit kiln bottom by existing pit kiln and the type of heating that adopts upper and lower laser heating; Replace by the hole A4 that coalings at pit kiln top and coaling, pass through again the coking mode (as shown in Figure 2,3) of the auto stove-door A3 coke discharging of pit kiln bottom, or replace by the wing furnace door A14 of pit kiln one side and coaling with tamping charging car 7, then pass through the coking mode (as shown in Figure 9) of the auto stove-door A3 coke discharging of pit kiln bottom.Therefore can be divided into following two kinds of forms:
Embodiment 1
This heat-exchanger rig is distributed in vertical coke discharging formula pit kiln both sides, and as Figure 1-5, coking adopts the mode of upper entering and lower leaving, level heating.
The designed heat-exchanger rig of the present invention has been realized the laser heating of combustion chamber 2, enter main burner 8 from the heated air of heat-exchanger rig preheating via the horizontal quirk 4 of orlop, the high-temperature flue gas baffling that burning produces rises, finally enter Heat Room 3 by smoke tube from gas approach 25, along with flue gas rises, flue-gas temperature can decline gradually, even in order to ensure each layer of horizontal quirk 4 Heating temperature, as shown in Figure 3,4, in the horizontal quirk of all the other odd numbers 4 headwall positions, an auxiliary burner 9 and temperature element 10 are all installed; Described main burner 8 and auxiliary burner 9 are connected with low-grade gas vertical passageway 31 and the air vertical passageway 32 of Heat Room 3 respectively; Temperature element 10, by detecting the temperature of this layer of horizontal quirk 4, is controlled the Heating temperature of this layer of auxiliary burner 9 automatically.
The outer wall of low-grade gas Heat Room 35 medial surfaces is provided with multiple low-grade gas corresponding with main burner 8 and auxiliary burner 9 and divides outlet 33, and this low-grade gas and a point outlet 33 are called air and divide outlet 34 in air heat-exchange chamber 36.
On the basis of said structure, carry out following improvement, can realize and utilize coke-oven gas to carry out compound heating: above-mentioned main burner 8 and auxiliary burner 9 are also connected with the coke-oven gas pipe connecting 13 with stopping valve.
The upper inner wall of described upper flue gas shunting passage 23A is the air distribution plate 37 to central partition plate 18 lopsidedness, is conducive to the uniformly distributing from top to bottom of the flue gas from gas approach 25 to standpipe 17; The upper inner wall of described upper flue gas converging channel 24 is the air distribution plate 37 to central partition plate 18 lopsidedness, is conducive to the flue gas from standpipe 17 evenly to converge to Heat Room exhanst gas outlet 26;
The below inwall of described lower flue gas converging channel 24B and lower flue gas shunting passage 23B is the air distribution plate 37 to central partition plate 18 lopsidedness, is conducive to evenly to converge from the flue gas of inside stand pipe 17, and then uniformly distributing is from bottom to top to standpipe 17.
The standpipe 17 of described Heat Room 3 is selected carbofrax material, has the advantages such as high temperature resistant, corrosion-resistant, heat-transfer effect is good.
Heat-processed of the present invention is as follows, taking the heat-exchanger rig of combustion chamber 2 one sides as example:
In the time that low-grade gas heats, first close the stopping valve on low-grade gas and air by-pass pipe 14, close the stopping valve on coke-oven gas pipe connecting 13, low-grade gas and air are by low-grade gas entrance 27 and the gas inlet 28 of both sides interchanger, enter respectively low-grade gas Heat Room 35 and the air heat-exchange chamber 36 of Heat Room 3, in Heat Room, low-grade gas and air are walked muitishell between pipe, partition continuous absorption heat.Flue gas passes through smoke tube by gas fume of combustion chamber outlet, enter Heat Room gas approach 25 successively after upper flue gas shunting passage 23A, inner side standpipe 17, lower flue gas converging channel 24B, lower flue gas shunting passage 23B, outside standpipe 17, upper flue gas shunting passage 24A, discharge from Heat Room exhanst gas outlet 26.Low-grade gas or air are respectively via low-grade gas entrance 27(gas inlet 28), between outside standpipe 17 pipes, between tube lane baffling hole 22, inner side standpipe 17 pipes, low-grade gas outlet 29(30 air vout), in 31(air vertical passageway, low-grade gas vertical passageway 32) low-grade gas (air) divide outlet 33(air to divide outlet 34 by low-grade gas respectively), by band variable valve low-grade gas pipe connecting 11 and band variable valve air pipe connecting 12, enter main burner.Low-grade gas and air combustion heat release in main burner, the flue gas after burning along horizontal quirk 4 flow, by the airflow hole further release of heat that rises.In order to ensure heating uniformity, at odd number level heating quirk headwall place, be provided with flue gas temperature element 10, in the time that horizontal fire path temperature reduces, in low-grade gas vertical passageway 31 and air vertical passageway 32, small part divides outlet 33 and air to divide outlet 34 by low-grade gas, by the low-grade gas pipe connecting 11 with variable valve and the air pipe connecting 12 with variable valve, enter the additional heat of burning in the auxiliary burner 9 of the horizontal quirk of combustion chamber 2 odd number, flue gas by exhanst gas outlet 16, enters both sides Heat Room by smoke tube 15 at the horizontal quirk of top layer.Flue gas enters respectively low-grade gas Heat Room 35 and air heat-exchange chamber 36 by smoke inlet 25, and in Heat Room 3, flue gas is walked two tube sides, continuous countercurrent partition carries out heat exchange, flue gas discharges waste heat, then is discharged by Heat Room exhanst gas outlet 26, then by a point flue, main flue, chimney high altitude discharge.Pit kiln institute combuster, Heat Room are all undertaken by this rule, thereby realize the horizontal laser heating of pit kiln.
In the time adopting coke-oven gas heating, low-grade gas Heat Room 35 is utilized as air heat-exchange chamber 36, first open the stopping valve on low-grade gas and air by-pass pipe 14, close the variable valve on low-grade gas pipe connecting 11, open the stopping valve on coke-oven gas pipe connecting 13, for fear of the pre-thermo-cracking of coke-oven gas, air is all walked in low-grade gas Heat Room 35 and the air heat-exchange chamber 36 on both sides, air after the preheating of low-grade gas Heat Room is by the stopping valve on bypass pipe 14, by air pipe connecting 12, enter the gas inlet of burner; Coke-oven gas, without preheating, is directly entered the fuel gas inlet of burner by coke-oven gas pipe connecting 13, the heat release of burning in horizontal quirk 4 of coke-oven gas and air, and flue gas is in Heat Room 3 and the heat exchange of air continuous countercurrent partition.The each combustion chamber of horizontal laser heating system of pit kiln, each Heat Room carries out according to above-mentioned rule.
In brief, the horizontal laser heating system of pit kiln is flue gas and the heated air continuous countercurrent partition heat exchange with certain pressure in the Heat Room of both sides, flue gas is walked tube side, continuous release waste heat, well heater is walked shell side, heat absorption preheating continuously, the heated air of preheating enters combustion chamber by both sides respectively; Heated air is at both sides, combustion chamber multiple spot continuous burning, and the flue gas of burning baffling in horizontal quirk rises, and emits heat, discharged and entered interchanger by the horizontal quirk of top layer outside.
This heat-exchanger rig is distributed in that vertical coke discharging formula pit kiln is one-sided, and opposite side is tamping charging car 7, and as Figure 6-9, coking adopts that side goes out under entering, the mode of level heating.
The type of heating of this scheme and the embodiment 1 wherein type of heating of a side heat-exchanger rig are identical, and difference is only that heat-exchanger rig is only distributed in the one-sided of vertical coke discharging formula pit kiln, and the heat-exchanger rig of embodiment 1 opposite side is replaced with to tamping charging car 7.
Claims (6)
1. for a heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln, it is characterized in that this heat-exchanger rig is distributed in both sides or a side of pit kiln, comprise and being arranged side by side and low-grade gas Heat Room (35) and air heat-exchange chamber (36) that structure is identical, described low-grade gas Heat Room (35) internal upper part and bottom are respectively equipped with the tube sheet (19) of the multiple perforation of surface band, between upper lower tubesheet (19), be provided with multiple standpipes (17) that connect respectively upper lower tubesheet perforation, in low-grade gas Heat Room (35), there is central partition plate (18) handle riser (17) to be divided into inside and outside two groups, central partition plate (18) upper end is connected with upper tubesheet (19), tube lane baffling hole (22) is left between lower tubesheet (19) in lower end, between upper lower tubesheet (19), be horizontally disposed with traverse baffle between multiple pipes (20), form muitishell heat exchanger channels,
The top that upper tubesheet (19) is positioned at central partition plate (18) inner side part is upper flue gas shunting passage (23A), the top that upper tubesheet (19) is positioned at central partition plate (18) Outboard Sections is the upper flue gas converging channel (24A) isolated with described upper flue gas shunting passage (23A)
The below that lower tubesheet (19) is positioned at central partition plate (18) inner side part is lower flue gas converging channel (24B), the below that lower tubesheet (19) is positioned at central partition plate (18) Outboard Sections is the lower flue gas shunting passage (23B) communicating with described lower flue gas converging channel (24B)
Below at lower tubesheet (19) middle part is provided with pipe interior passageway baffling hole (21), forms two tube side heat exchanger channels, and this pipe interior passageway traverse baffle (21) is positioned between lower flue gas converging channel (24B) and lower flue gas shunting passage (23B),
The upper flue gas shunting passage (23A) that is positioned at upper tubesheet (19) top is provided with gas approach (25), and the upper flue gas converging channel (24A) that is positioned at upper tubesheet (19) top is provided with Heat Room exhanst gas outlet (26); There is low-grade gas entrance (27) to communicate with tube lane in described low-grade gas Heat Room (35) upper outside, have low-grade gas outlet (29) in described low-grade gas Heat Room (35) upper inner, this low-grade gas outlet (29) communicates with the low-grade gas vertical passageway (31) that is arranged on low-grade gas Heat Room (35) inner side;
Described low-grade gas vertical passageway (31) is provided with low-grade gas towards the bottom of combustion chamber 2 one sides and divides outlet (33);
The low-grade gas entrance (27) of described low-grade gas Heat Room (35), low-grade gas outlet (29) are called gas inlet (28), air vout (30) in air heat-exchange chamber (36);
The air vout (30) of air heat-exchange chamber (36) communicates with the air gas vertical passageway (32) that is arranged on inner side, air heat-exchange chamber (36); Leave air in air vertical passageway (32) towards the bottom of combustion chamber (2) one sides and divide outlet (34).
2. the heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln as claimed in claim 1, it is characterized in that described low-grade gas divide outlet (33) and air divide outlet (34) respectively by with variable valve low-grade gas pipe connecting (11) be connected with main burner (8) with the air pipe connecting (12) with variable valve.
3. the heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln as claimed in claim 2, is characterized in that being provided with the bypass pipe (14) with stopping valve between described low-grade gas pipe connecting (11) and air pipe connecting (12).
4. the heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln as claimed in claim 1, it is characterized in that low-grade gas vertical passageway (31) is provided with multiple low-grade gas towards the bottom of combustion chamber 2 one sides and divides outlet (33), air vertical passageway (32) is left multiple air towards the bottom of combustion chamber (2) one sides and is divided outlet (34)
The low-grade gas of the lowest layer divide outlet (33) and air divide outlet (34) respectively by with variable valve low-grade gas pipe connecting (11) be connected with main burner (8) with the air pipe connecting (12) with variable valve.
Remaining every a pair of low-grade gas divide outlet (33) and air divide outlet (34) respectively by with variable valve low-grade gas pipe connecting (11) be connected with temperature element (10) with auxiliary burner (9) with the air pipe connecting (12) with variable valve.
5. the heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln as claimed in claim 4, is characterized in that being provided with the bypass pipe (14) with stopping valve between described low-grade gas pipe connecting (11) and air pipe connecting (12).
6. the heat-exchanger rig for the vertical horizontal laser heating of coke discharging formula pit kiln as described in claim 2 or 4, is characterized in that above-mentioned main burner (8) and auxiliary burner (9) are also connected with the coke-oven gas pipe connecting (13) with stopping valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410153583.1A CN103897711A (en) | 2014-04-16 | 2014-04-16 | Heat exchange device for transversely continuous heating of vertical coke discharging type coke oven |
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| CN201410153583.1A CN103897711A (en) | 2014-04-16 | 2014-04-16 | Heat exchange device for transversely continuous heating of vertical coke discharging type coke oven |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385462A (en) * | 2015-12-02 | 2016-03-09 | 中冶焦耐工程技术有限公司 | Method capable of effectively reducing nitrogen oxide in coke oven |
| CN106675584A (en) * | 2016-11-11 | 2017-05-17 | 中冶焦耐(大连)工程技术有限公司 | Structure and method for adjusting lengthwise air-flow distribution of coke oven by synergizing upper part with lower part |
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| GB515503A (en) * | 1938-06-03 | 1939-12-06 | Franz Puening | Improvements in and relating to coking apparatus |
| CN102796536A (en) * | 2012-08-27 | 2012-11-28 | 张星原 | Double-divided sectional type heating odd horizontal flame path of heat recovery coke oven |
| CN103756691A (en) * | 2014-01-29 | 2014-04-30 | 刘运良 | Coke oven capable of horizontally heating continuously and vertically extracting coke |
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| GB515503A (en) * | 1938-06-03 | 1939-12-06 | Franz Puening | Improvements in and relating to coking apparatus |
| CN102796536A (en) * | 2012-08-27 | 2012-11-28 | 张星原 | Double-divided sectional type heating odd horizontal flame path of heat recovery coke oven |
| CN103756691A (en) * | 2014-01-29 | 2014-04-30 | 刘运良 | Coke oven capable of horizontally heating continuously and vertically extracting coke |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105385462A (en) * | 2015-12-02 | 2016-03-09 | 中冶焦耐工程技术有限公司 | Method capable of effectively reducing nitrogen oxide in coke oven |
| CN106675584A (en) * | 2016-11-11 | 2017-05-17 | 中冶焦耐(大连)工程技术有限公司 | Structure and method for adjusting lengthwise air-flow distribution of coke oven by synergizing upper part with lower part |
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