CN201866926U - Waste heat recycling gas hot blast stove - Google Patents
Waste heat recycling gas hot blast stove Download PDFInfo
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- CN201866926U CN201866926U CN2010206108695U CN201020610869U CN201866926U CN 201866926 U CN201866926 U CN 201866926U CN 2010206108695 U CN2010206108695 U CN 2010206108695U CN 201020610869 U CN201020610869 U CN 201020610869U CN 201866926 U CN201866926 U CN 201866926U
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- waste heat
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Abstract
The utility model relates to technology of industrial gas kilns, in particular to a waste heat recycling gas hot blast stove. The waste heat recycling gas hot blast stove is provided with a stove body, and is characterized in that: the left end of the stove body is provided with a combustion-supporting preheated air mixing chamber, an air inlet pipeline and a combustion-supporting preheated air pipeline; the air inlet pipeline is connected with a fan; the tail end of the combustion-supporting preheated air pipeline is connected with a combustor; one end of the combustor is connected with a hearth, and the other end of the combustor is connected with a vapor heat exchanger and a gas inlet pipe; the middle part of the stove body is provided with a hot blast collection chamber; the right end of the stove body is provided with a waste heat absorbing and mixing chamber, a negative pressure suction type air inlet pipe and a filter type waste heat air inlet pipe; the filter type waste heat air inlet pipe is connected with a waste heat air fan; and a hot blast pipe port is also arranged in the waste heat absorbing and mixing chamber. Through the gas hot blast stove, the problems of low energy utilization rate, large wind resistance of a structural air passage, underutilization of waste heat air and poorer overall energy efficiency which are exist in an existing gas hot blast stove are solved, and the gas hot blast stove is mainly used for modifying the industrial gas kilns.
Description
(1). technical field: the utility model relates to industrial combustion gas kiln technology, is a kind of recycling residual heat fuel gas hot-blast stove.
(2). background technology: existing industrial combustion gas hot-blast stove, it is air mixture combustion chamber and hot blast collecting chamber that its formation all adopts double-deck steel shell structure, body of heater internal layer, intermediate course is that air cooling air flow passage or heat exchanger are arranged the district; The problem that the hot-blast stove of this structural shape in use exists is: 1.. body of heater air mixture ignition temperature is influenced by environmental temperature, and in the winter time because of combustion chamber air mixture initial temperature is lower, completing combustion is failed in combustion gas, and energy consumption is big; 2.. the heat energy that furnace sandwich air cooling fluid is absorbed fails to be fully used, and energy utilization rate is low; 3.. furnace sandwich heat exchanger warm-up combustion-supporting air device consumes and local loss height along crushing because of gas channel, needs to consume a large amount of blower fan electric energy; 4.. air inlet of combustion chamber, cooling air inlet unreasonable structure, windage is bigger, consumes a large amount of electric energy of blower fan, and Energy Efficiency Ratio is lower; 5.. technology waste heat air is fully filled utilization.
(3). summary of the invention: the purpose of this utility model be exactly to solve that the existing energy utilization rate of existing fuel gas hot-blast stove is low, structure air flue windage is big, the waste heat air is fully filled utilization, the relatively poor problem of whole Energy Efficiency Ratio, and a kind of recycling residual heat fuel gas hot-blast stove is provided.
Concrete scheme of the present utility model is: a kind of recycling residual heat fuel gas hot-blast stove, it has body of heater, and described body of heater is the dumbbell shaped double Shell of horizontal layout, and the internal layer of body of heater is a burner hearth, burner hearth is provided with the burner interface, and the inside and outside interlayer of body of heater is a gas channel; It is characterized in that: the left end of body of heater is furnished with combustion-supporting preheated air mixing chamber, and described combustion-supporting preheated air mixing chamber is respectively equipped with air intake pipe, combustion-supporting preheated air pipeline and burner hearth cooling air channel; Air intake pipe is connected with blower fan, the end of combustion-supporting preheated air pipeline is connected with burner, one end of described burner is connected with burner interface in the burner hearth by combustion-supporting preheated air mixing chamber, the other end of burner is connected with the heating gas pipeline, the heating gas pipeline is connected with the vapor heat exchanger top that is arranged in combustion-supporting preheated air mixing chamber the place ahead, and the below of vapor heat exchanger is connected with gas inlet pipe; The middle part of body of heater is provided with burner hearth cooling hot blast collecting chamber, is provided with in line air channel, some roads in the interlayer between described hot blast collecting chamber and the burner hearth middle part, and the left end air inlet place in the in line air channel of per pass is equipped with a flow control valve; The right-hand member of body of heater is furnished with waste heat and absorbs mixing chamber, and described waste heat absorbs mixing chamber and is respectively equipped with negative pressure suction-type air intake duct and filtering type waste heat air intake duct, is connected with the waste heat air blower at the other end of filtering type waste heat air intake duct; In waste heat absorbs mixing chamber the warm-air pipe interface is installed also, another of described warm-air pipe interface partly is installed in the outside that waste heat absorbs the mixing chamber right-hand member; On the one section warm-air pipe interface that is positioned at waste heat absorption mixing chamber, be provided with several air channel waste heats and absorb gas mixing device, also be furnished with some Zhi Yure absorption of air pipes at the one section warm-air pipe interface that is positioned at waste heat absorption mixing chamber.
Burner hearth described in the utility model is cylindrical, the conical shell of multistage variable cross-section, and the left end of burner hearth is provided with fire door, is provided with the burner interface on the cylindrical housings of burner hearth left; On the cylindrical housings of burner hearth right-hand member, be provided with 40
0--45
0The conical shell that closes up in the angle, conical shell is connected with the internal layer shell that waste heat absorbs mixing chamber.
Combustion-supporting preheated air mixing chamber described in the utility model has cylindrical housings, and the below of cylindrical housings is provided with the body of heater supporting, and the left end of cylindrical housings is connected with 40
0--45
0The left end conical shell that closes up in the angle, the left end conical shell is provided with combustion-supporting preheated air pipeline, and the axis of described combustion-supporting preheated air pipeline and the axis of body of heater are 40
0--45
0The angle arranges that the outside of left end conical shell is provided with shrouding; Right-hand member in cylindrical housings is connected with 45
0--60
0The right-hand member conical shell that closes up in the angle, the right-hand member conical shell is provided with air intake pipe, and the axis of described air intake pipe and the axis of body of heater are 40
0--45
0The angle arranges that the right-hand member of right-hand member conical shell is connected with the left end of hot blast collecting chamber housing.
Waste heat described in the utility model absorbs mixing chamber and has cylindrical housings, and the below of cylindrical housings is provided with the body of heater supporting, and the left end of cylindrical housings is connected with 45
0--60
0The left end conical shell that closes up in the angle, be respectively equipped with negative pressure suction-type air intake duct and filtering type waste heat air intake duct on the left end conical shell, the axis of described negative pressure suction-type air intake duct and filtering type waste heat air intake duct all is 40 with the axis of body of heater
0--45
0The angle arranges that the left end of left end conical shell is connected with the right-hand member of hot blast collecting chamber housing; The right-hand member of cylindrical housings is connected with 45
0--60
0The right-hand member conical shell that closes up in the angle, the right-hand member of right-hand member conical shell is connected with ring sealing plate, and the interior collar extension of described ring sealing plate is connected with the periphery of warm-air pipe interface.
Operation principle of the present utility model is (seeing Fig. 6, Fig. 7 for details): combustion gas is transported to vapor heat exchanger 4 through gas inlet pipe 7, and combustion gas is transported to burner 3 through vapor heat exchanger 4 heating backs by heating gas pipeline 1; Combustion air is compressed through blower fan 17, air intake pipe 11, combustion-supporting preheated air mixing chamber 6 and combustion-supporting preheated air pipeline 2 and is transported to burner 3, be ejected into burner hearth 13 internal combustion after heating gas in the burner 3 and combustion-supporting preheated air mix in proportion, the hot-air with normal pressure that the burning back produces flows to the end of burner hearth 13 along burner hearth 13; In the combustion-supporting preheated air mixing chamber 6 another partly compressed air flows to waste heat with the pressure reduction in the body of heater and absorbs mixing chamber 9 through several flow control valves 12 and in line air channel 20, some roads behind the heat energy that has absorbed burner hearth 13 stage casing outer walls; Use back technology waste heat air process waste heat air blower 18 more than needed and filtering type waste heat air intake duct 14 to be compressed in the factory and be transported to waste heat absorption mixing chamber 9; In waste heat absorbed mixing chamber 9, the cold air that the hot-air that the back of burning produces is sucked through negative pressure suction-type air intake duct 15 mixed the qualified hot blast of generation and is transported to warm-air pipe interface 10; In waste heat absorbs mixing chamber 9, the cooling air that has absorbed burner hearth 13 stage casing outer wall heat energy absorbs the end that gas mixing device 16 flows to burner hearth 13 by the air channel waste heat, is mixing back inflow warm-air pipe interface 10 with cold air that negative pressure suction-type air intake duct 15 is sucked; In waste heat absorbed mixing chamber 9, technology waste heat air was transported to warm-air pipe interface 10 by waste heat absorption of air pipe 19, and the heat energy air that compiles tripartite face in the warm-air pipe interface 10 is transported to factory and uses operation.
Wherein, technology waste heat air can by negative pressure suction-type air intake duct 15 or filtering type waste heat air intake duct 14 both one of pipeline enter into waste heat and absorb mixing chamber 9, when technology waste heat air is malleation, can enter into waste heat by negative pressure suction-type air intake duct 15 and absorb mixing chamber 9, cold air then enters into waste heat from filtering type waste heat air intake duct 14 and absorbs mixing chamber 9.
The utility model is compared with original industrial combustion gas hot-blast stove, the utlity model has the function that can utilize waste heat of plant steam, waste heat of plant air, makes factory's energy consumption of unit product obtain descending; The utlity model has Steam Heating combustion gas function, the combustion-supporting point of low-calorie blast furnace gas is improved, fuel is fully burned, the fuel of hot-blast stove adapts to wide, but the fuel saving cost; The utility model air passage structure windage is little, is beneficial to the smoothness of hot blast, and the electric energy of blower fan is economized, and the Energy Efficiency Ratio of hot-blast stove is improved; The utility model low, structure of the existing energy utilization rate of existing fuel gas hot-blast stove of having deblocked preferably
The air flue windage is big, the waste heat air is fully filled utilization, the relatively poor problem of whole Energy Efficiency Ratio.
(4). description of drawings:
Fig. 1: the utility model structural front view;
Fig. 2: the utility model structure vertical view;
Fig. 3: the utility model structure right view;
Fig. 4: A-A profile;
Fig. 5: B-B profile;
Fig. 6: the thermal technology principle master looks schematic diagram;
Fig. 7: thermal technology principle schematic top plan view;
Among the figure: 1-heating gas pipeline, 2-combustion-supporting preheated air pipeline, 3-burner, 4-vapor heat exchanger, the supporting of 5-body of heater, 6-combustion-supporting preheated air mixing chamber, 7-gas inlet pipe, 8-hot blast collecting chamber, 9-waste heat absorbs mixing chamber, 10-warm-air pipe interface, 11-air intake pipe, 12-flow control valve, 13-burner hearth, 14-filtering type waste heat air intake duct, 15-negative pressure suction-type air intake duct, 16-air channel waste heat absorbs gas mixing device, 17-blower fan, 18-waste heat air blower, 19-waste heat absorption of air pipe, 20-in line air channel, 21-dividing plate, 22-burner interface.
(5). the specific embodiment:
Embodiment (seeing Fig. 1, Fig. 2, Fig. 3 for details): a kind of recycling residual heat fuel gas hot-blast stove, it has body of heater, described body of heater is the dumbbell shaped double Shell of horizontal layout, the internal layer of body of heater is a burner hearth 13, the described burner hearth 13 of present embodiment is cylindrical, the conical shell of multistage variable cross-section, the left end of burner hearth 13 is provided with fire door, is provided with burner interface 22 on the cylindrical housings of burner hearth left; On the cylindrical housings of burner hearth 13 right-hand members, be provided with 40
0--45
0The conical shell that closes up in the angle, conical shell is connected with the internal layer shell that waste heat absorbs mixing chamber 9; The inside and outside interlayer of body of heater is a gas channel; Particularly: the left end of body of heater is furnished with combustion-supporting preheated air mixing chamber 6, described combustion-supporting preheated air mixing chamber 6 is respectively equipped with air intake pipe 11, combustion-supporting preheated air pipeline 2 and burner hearth cooling air channel, the described combustion-supporting preheated air mixing chamber 6 of present embodiment has cylindrical housings, the below of cylindrical housings is provided with body of heater supporting 5, and the left end of cylindrical housings is connected with 40
0--45
0The left end conical shell that closes up in the angle, the left end conical shell is provided with combustion-supporting preheated air pipeline 2, and the axis of described combustion-supporting preheated air pipeline 2 and the axis of body of heater are 40
0--45
0The angle arranges that the outside of left end conical shell is provided with shrouding; Right-hand member in cylindrical housings is connected with 45
0--60
0The right-hand member conical shell that closes up in the angle, the right-hand member conical shell is provided with air intake pipe 11, and the axis of described air intake pipe 11 and the axis of body of heater are 40
0--45
0The angle arranges that the right-hand member of right-hand member conical shell is connected with the left end of hot blast collecting chamber 8 housings; Air intake pipe 11 is connected with blower fan 17, the end of combustion-supporting preheated air pipeline 2 is connected with burner 3, one end of described burner 3 is connected with burner interface 22 in the burner hearth 13 by combustion-supporting preheated air mixing chamber 6, the other end of burner 3 is connected with heating gas pipeline 1, heating gas pipeline 1 is connected with vapor heat exchanger 4 tops that are arranged in combustion-supporting preheated air mixing chamber 6 the place aheads, and the below of vapor heat exchanger 4 is connected with gas inlet pipe 7; The middle part of body of heater is provided with burner hearth cooling hot blast collecting chamber 8, be provided with the in line air channel 20(in eight roads in the interlayer between described hot blast collecting chamber 8 of present embodiment and burner hearth 13 middle parts and see Fig. 5 for details), the left end air inlet place in the in line air channel 20 of per pass is equipped with a flow control valve 12; The right-hand member of body of heater is furnished with waste heat and absorbs mixing chamber 9, and the described waste heat of present embodiment absorbs mixing chamber 9 and has cylindrical housings, and the below of cylindrical housings is provided with body of heater supporting 5, and the left end of cylindrical housings is connected with 45
0--60
0The left end conical shell that closes up in the angle, be respectively equipped with negative pressure suction-type air intake duct 15 and filtering type waste heat air intake duct 14 on the left end conical shell, the axis of described negative pressure suction-type air intake duct 15 and filtering type waste heat air intake duct 14 all is 40 with the axis of body of heater
0--45
0The angle arranges that the left end of left end conical shell is connected with the right-hand member of hot blast collecting chamber 8 housings; The right-hand member of cylindrical housings is connected with 45
0--60
0The right-hand member conical shell that closes up in the angle, the right-hand member of right-hand member conical shell is connected with ring sealing plate, and the interior collar extension of described ring sealing plate is connected with the periphery of warm-air pipe interface 10; The other end at filtering type waste heat air intake duct 14 is connected with waste heat air blower 18; In waste heat absorbs mixing chamber 8 warm-air pipe interface 10 is installed also, another of described warm-air pipe interface 10 partly is installed in the outside that waste heat absorbs mixing chamber 9 right-hand members; Present embodiment is described to be provided with eight air channel waste heats on one section warm-air pipe interface 10 that waste heat absorbs mixing chamber 9 and to absorb gas mixing devices 16 being positioned at, and present embodiment is described also to be furnished with eight waste heat absorption of air pipe 19(at the one section warm-air pipe interface 10 that is positioned at waste heat absorption mixing chamber 9 and to see Fig. 4 for details).
Claims (4)
1. recycling residual heat fuel gas hot-blast stove, it has body of heater, and described body of heater is the dumbbell shaped double Shell of horizontal layout, and the internal layer of body of heater is a burner hearth, and burner hearth is provided with the burner interface, and the inside and outside interlayer of body of heater is a gas channel; It is characterized in that: the left end of body of heater is furnished with combustion-supporting preheated air mixing chamber, and described combustion-supporting preheated air mixing chamber is respectively equipped with air intake pipe, combustion-supporting preheated air pipeline and burner hearth cooling air channel; Air intake pipe is connected with blower fan, the end of combustion-supporting preheated air pipeline is connected with burner, one end of described burner is connected with burner interface in the burner hearth by combustion-supporting preheated air mixing chamber, the other end of burner is connected with the heating gas pipeline, the heating gas pipeline is connected with the vapor heat exchanger top that is arranged in combustion-supporting preheated air mixing chamber the place ahead, and the below of vapor heat exchanger is connected with gas inlet pipe; The middle part of body of heater is provided with burner hearth cooling hot blast collecting chamber, is provided with in line air channel, some roads in the interlayer between described hot blast collecting chamber and the burner hearth middle part, and the left end air inlet place in the in line air channel of per pass is equipped with a flow control valve; The right-hand member of body of heater is furnished with waste heat and absorbs mixing chamber, and described waste heat absorbs mixing chamber and is respectively equipped with negative pressure suction-type air intake duct and filtering type waste heat air intake duct, is connected with the waste heat air blower at the other end of filtering type waste heat air intake duct; In waste heat absorbs mixing chamber the warm-air pipe interface is installed also, another of described warm-air pipe interface partly is installed in the outside that waste heat absorbs the mixing chamber right-hand member; On the one section warm-air pipe interface that is positioned at waste heat absorption mixing chamber, be provided with several air channel waste heats and absorb gas mixing device, also be furnished with some Zhi Yure absorption of air pipes at the one section warm-air pipe interface that is positioned at waste heat absorption mixing chamber.
2. a kind of recycling residual heat fuel gas hot-blast stove according to claim 1 is characterized in that: described burner hearth is cylindrical, the conical shell of multistage variable cross-section, and the left end of burner hearth is provided with fire door, is provided with the burner interface on the cylindrical housings of burner hearth left; On the cylindrical housings of burner hearth right-hand member, be provided with 40
0--45
0The conical shell that closes up in the angle, conical shell is connected with the internal layer shell that waste heat absorbs mixing chamber.
3. a kind of recycling residual heat fuel gas hot-blast stove according to claim 1 is characterized in that: described combustion-supporting preheated air mixing chamber has cylindrical housings, and the below of cylindrical housings is provided with the body of heater supporting, and the left end of cylindrical housings is connected with 40
0--45
0The left end conical shell that closes up in the angle, the left end conical shell is provided with combustion-supporting preheated air pipeline, and the axis of described combustion-supporting preheated air pipeline and the axis of body of heater are 40
0--45
0The angle arranges that the outside of left end conical shell is provided with shrouding; Right-hand member in cylindrical housings is connected with 45
0--60
0The right-hand member conical shell that closes up in the angle, the right-hand member conical shell is provided with air intake pipe, and the axis of described air intake pipe and the axis of body of heater are 40
0--45
0The angle arranges that the right-hand member of right-hand member conical shell is connected with the left end of hot blast collecting chamber housing.
4. a kind of recycling residual heat fuel gas hot-blast stove according to claim 1 is characterized in that: described waste heat absorbs mixing chamber and has cylindrical housings, and the below of cylindrical housings is provided with the body of heater supporting, and the left end of cylindrical housings is connected with 45
0--60
0The left end conical shell that closes up in the angle, be respectively equipped with negative pressure suction-type air intake duct and filtering type waste heat air intake duct on the left end conical shell, the axis of described negative pressure suction-type air intake duct and filtering type waste heat air intake duct all is 40 with the axis of body of heater
0--45
0The angle arranges that the left end of left end conical shell is connected with the right-hand member of hot blast collecting chamber housing; The right-hand member of cylindrical housings is connected with 45
0--60
0The right-hand member conical shell that closes up in the angle, the right-hand member of right-hand member conical shell is connected with ring sealing plate, and the interior collar extension of described ring sealing plate is connected with the periphery of warm-air pipe interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206108695U CN201866926U (en) | 2010-11-17 | 2010-11-17 | Waste heat recycling gas hot blast stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206108695U CN201866926U (en) | 2010-11-17 | 2010-11-17 | Waste heat recycling gas hot blast stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866926U true CN201866926U (en) | 2011-06-15 |
Family
ID=44138079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206108695U Expired - Fee Related CN201866926U (en) | 2010-11-17 | 2010-11-17 | Waste heat recycling gas hot blast stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866926U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418937A (en) * | 2011-11-01 | 2012-04-18 | 德化县兰星自动化工程有限公司 | Combustion air and natural gas linear proportion control system for ceramic kiln |
| CN111442619A (en) * | 2020-05-21 | 2020-07-24 | 江苏南若环保科技有限公司 | Positive-pressure hot-air heat-accumulating type alloy baking device |
-
2010
- 2010-11-17 CN CN2010206108695U patent/CN201866926U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418937A (en) * | 2011-11-01 | 2012-04-18 | 德化县兰星自动化工程有限公司 | Combustion air and natural gas linear proportion control system for ceramic kiln |
| CN102418937B (en) * | 2011-11-01 | 2013-12-11 | 德化县兰星自动化工程有限公司 | Combustion air and natural gas linear proportion control system for ceramic kiln |
| CN111442619A (en) * | 2020-05-21 | 2020-07-24 | 江苏南若环保科技有限公司 | Positive-pressure hot-air heat-accumulating type alloy baking device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20131117 |