CN205279435U - Hot -blast heating system of black furnace powder process - Google Patents
Hot -blast heating system of black furnace powder process Download PDFInfo
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- CN205279435U CN205279435U CN201521030946.9U CN201521030946U CN205279435U CN 205279435 U CN205279435 U CN 205279435U CN 201521030946 U CN201521030946 U CN 201521030946U CN 205279435 U CN205279435 U CN 205279435U
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- hot
- heat exchanger
- air
- gas
- powder process
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000000843 powder Substances 0.000 title claims abstract description 19
- 238000002955 isolation Methods 0.000 claims abstract description 33
- 239000003245 coal Substances 0.000 claims abstract description 24
- 238000002485 combustion reaction Methods 0.000 claims abstract description 23
- 235000019504 cigarettes Nutrition 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 abstract description 27
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003546 flue gas Substances 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 abstract 1
- 239000000779 smoke Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model relates to a thermal power equipment technical field especially relates to a hot -blast heating system of black furnace powder process, include: the heating unit that is linked together with first coal pulverizer, the heating unit is including keeping apart gas heat exchanger and oil gun combustion chamber, be provided with hot air channel and heat transfer passageway in the isolation gas heat exchanger, be connected with the oil gun combustion chamber on the heat transfer passageway, hot cigarette in the oil gun combustion chamber in the circulation of heat transfer passageway and in keeping apart gas heat exchanger with hot air channel in initial air inlet carry out the heat exchange. Adopting hot flue gas of oil gun and hot -blast isolation, heating hot -blastly through the tubular heat transfer, hot -blast oxygen content in hot -blast does not reduce by the heating back, combustion -supporting can the reinforce, hot -blast stable quality can greatly improve the technological system security of oil drop fire that economizes on fuel. The motor wiring apparatus is highly safe, stable and reliable.
Description
Technical field
The utility model relates to steam power plant technical field, particularly relates to a kind of cold stove powder process hot air heating system.
Background technology
The big boiler of coal-fired moisture, such as lignite-fired unit, when cold stove starts, adopts fuel-saving technique to carry out igniting and must relate to cold stove powder process, and the hot blast how solving cold stove powder process is originated. The scheme majority adopted at present is adjacent stove hot blast heating, electrically heated, or small oil gun is in the direct Hybrid Heating of hot air passage, and adopts small oil gun to heat with steam air heater in the direct Hybrid Heating of hot air passage again.
Wherein, electrically heated cost is high, and the system of adjacent stove hot blast is comparatively complicated, it may also be useful to condition be there is adjacent stove hot blast, and a lot of situation does not have adjacent stove, or has adjacent stove but the qualified hot blast of the offer that do not satisfy the requirements.
Secondly, small oil gun is in the direct Hybrid Heating of hot air passage, and adopt small oil gun to heat with steam air heater again in the direct Hybrid Heating of hot air passage, these two kinds of patterns are all there is small oil gun directly combustion heating in hot air passage, this kind of heating efficiency is the highest, but small oil gun burning can reduce the oxygen content in hot air passage, indirectly reduce the combustion-supporting ability of hot blast.
Practical novel content
The purpose of this utility model is to propose a kind of cold stove powder process hot air heating system, adopt the heat smoke heating hot blast that oil gun burning produces, flue gas and hot blast isolation, heating hot blast is carried out by pipe type heat transfer, hot blast is not reduced by the oxygen content heated in rear hot blast, combustion-supporting ability is strong, hot blast stay in grade, can greatly improve the security of system of oil tech igniting. There is higher security, stability and reliability.
For reaching this object, the utility model by the following technical solutions:
A kind of cold stove powder process hot air heating system, comprise: the heating unit being connected with the first coal pulverizer, described heating unit comprises isolation gas-gas heat exchanger and oil gun combustion chamber, it is provided with hot-air channel and heat exchanger channels in described isolation gas-gas heat exchanger, being connected with oil gun combustion chamber on described heat exchanger channels, the hot cigarette in described oil gun combustion chamber is in heat exchanger channels circulation and carries out heat exchange with the initial air intake in hot-air channel in isolation gas-gas heat exchanger.
Wherein, described hot-air channel is connected with the 2nd coal pulverizer, and described 2nd coal pulverizer is adjacent with described first coal pulverizer.
Wherein, described hot-air channel being also provided with hot air isolating air door and regulates air door, described hot air isolating air door and adjustment air door arrange the both sides being to isolate gas-gas heat exchanger respectively along the circulating direction of hot-air channel.
Wherein, described hot-air channel being also provided with at least one thermometer, described thermometer is arranged on and regulates between air door and isolation gas-gas heat exchanger.
Wherein, at least one thermometer is also arranged between hot air isolating air door and isolation gas-gas heat exchanger.
Wherein, described heat exchanger channels being also provided with blower fan, described oil gun combustion chamber is between isolation gas-gas heat exchanger and blower fan.
Wherein, described heat exchanger channels is also provided with hot cigarette Insulated wind door, and described isolation gas-gas heat exchanger is between oil gun combustion chamber and hot cigarette Insulated wind door.
Wherein, described hot-air channel is all connected stokehold heat primary air mother's pipe with heat exchanger channels, and from the female pipe air intake of stokehold heat primary air.
Wherein, described hot-air channel is connected with the cold airduct of the 2nd coal pulverizer, and enters the 2nd coal pulverizer burner hearth after gas and vapor permeation in the hot cigarette and cold airduct of heat exchange in hot-air channel, for solving the hot cigarette emission problem through heat exchange.
Useful effect: adopting oil gun heat smoke and hot blast isolation, carry out heating hot blast by pipe type heat transfer, hot blast is not reduced by the oxygen content heated in rear hot blast, and combustion-supporting ability is strong, hot blast stay in grade, can greatly improve the security of system of oil tech igniting; Useless cigarette squeezes into boiler furnace by other air channels, solves useless flue gas safety dumping and solves piping layout problem.
Accompanying drawing explanation
Fig. 1 is the structural representation of the cold stove powder process hot air heating system that the utility model embodiment 1 provides.
In figure:
1, gas-gas heat exchanger is isolated; 2, hot air isolating air door; 3, air door is regulated; 4, blower fan; 5, oil gun combustion chamber; 6, hot cigarette Insulated wind door; 7, logical stokehold heat primary air mother pipe; 8, the first coal pulverizer; 9, the 2nd coal pulverizer; 10, thermometer.
Embodiment
Below in conjunction with accompanying drawing and by embodiment, the technical solution of the utility model is described further.
Embodiment 1
The utility model provides a kind of cold stove powder process hot air heating system, comprise: the heating unit being connected with the first coal pulverizer 8, described heating unit carries out heat exchange by pipe type heat transfer, tubular heat exchange, the oxygen proportion of the hot blast in hot-air channel can be kept preferably, improve its combustion-supporting ability, hot blast stay in grade, can greatly improve the security of system of oil tech igniting.
Described heating unit comprises isolation gas-gas heat exchanger 1 and oil gun combustion chamber 5, it is provided with hot-air channel and heat exchanger channels in described isolation gas-gas heat exchanger 1, being connected with oil gun combustion chamber 5 on described heat exchanger channels, the hot cigarette in described oil gun combustion chamber 5 is in heat exchanger channels circulation and carries out heat exchange with the initial air intake in hot-air channel in isolation gas-gas heat exchanger 1.
Further, described heat exchanger channels is warp architecture in isolation gas-gas heat exchanger 1 inside, so that the hot cigarette in heat exchanger channels and the initial air intake in hot-air channel carry out sufficient heat exchange, it is preferable that, described heat exchanger channels is in the isolation inner S-type structure of gas-gas heat exchanger 1 or prionodont structure.
As one of the preferred version of the technical program, described hot-air channel is also provided with hot air isolating air door 2 and regulates air door 3, described hot air isolating air door 2 and regulate air door 3 to be arranged at the both sides of isolation gas-gas heat exchanger 1 respectively along the circulating direction of hot-air channel. For regulating, the gas in hot-air channel enters speed to described hot air isolating air door 2, obtains better heat exchange effect; Described adjustment air door 3 enters the speed of the first coal pulverizer 8 for the hot blast after controlling heat exchange, keeps hot blast stay in grade in the first coal pulverizer 8, greatly improves the ignition ability of fuel-economizing firing technique.
As one of the preferred version of the technical program, described hot-air channel being also provided with at least one thermometer 10, described thermometer 10 is arranged on and regulates between air door 3 and isolation gas-gas heat exchanger 1. The temperature arranging hot blast in the hot-air channel after better can monitoring heat exchange of described thermometer 10, makes the temperature of hot blast more constant by control, is conducive to the good operation of the first coal pulverizer 8.
Further, also it is provided with at least one thermometer 10 between described hot air isolating air door 2 and isolation gas-gas heat exchanger 1. The thermometer 10 arranged between described hot air isolating air door 2 and isolation gas-gas heat exchanger 1, it is possible to monitor the temperature of initial air intake in hot-air channel at any time, and adjust in time in conjunction with the working efficiency of oil gun combustion chamber 5 and regulate air door 3, keep the stability of hot blast.
As one of the preferred version of the technical program, described heat exchanger channels being also provided with blower fan 4, described oil gun combustion chamber 5 is between isolation gas-gas heat exchanger 1 and blower fan 4. The speed arranging the air that can enter in oil gun combustion chamber 5 by quickening of described blower fan 4, increases the generation of hot cigarette, thus improves the heat exchange efficiency of isolation gas-gas heat exchanger 1.
As one of the preferred version of the technical program, described heat exchanger channels is also provided with hot cigarette Insulated wind door 6, and described isolation gas-gas heat exchanger 1 is between oil gun combustion chamber 5 and hot cigarette Insulated wind door 6. When described hot cigarette Insulated wind door 6 is stopped transport for native system and the Secure isolation of original system.
As one of the preferred version of the technical program, described hot-air channel is all connected the female pipe 7 of stokehold heat primary air with heat exchanger channels, and from female pipe 7 air intake of stokehold heat primary air.
As one of the preferred version of the technical program, described hot-air channel is connected with the 2nd coal pulverizer 9, and described 2nd coal pulverizer 9 is adjacent with described first coal pulverizer 8. Described hot-air channel is connected with the cold airduct of the 2nd coal pulverizer 9, and enters the 2nd coal pulverizer burner hearth after gas and vapor permeation in the hot cigarette and cold airduct of heat exchange in hot-air channel. Solve useless flue gas safety dumping problem, decrease simultaneously and useless fume treatment is arranged in addition to taking of the space that pipeline causes and cost, reduce equipment cost, it is to increase space rate of utilization.
When specifically implementing, it is possible to by arranging separately pipeline, the flue gas after heat exchange is caused burner hearth or other discharges place.
In sum, adopting oil gun heat smoke and hot blast isolation, carry out heating hot blast by pipe type heat transfer, hot blast is not reduced by the oxygen content heated in rear hot blast, and combustion-supporting ability is strong, hot blast stay in grade, can greatly improve the ignition ability of fuel-economizing firing technique; Useless cigarette squeezes into boiler furnace by other air channels, solves useless flue gas safety dumping and solves piping layout problem.
Below know-why of the present utility model is described in conjunction with specific embodiments. These describe just in order to explain principle of the present utility model, and can not be interpreted as the restriction to the utility model protection domain by any way. Based on explanation herein, the technician of this area does not need to pay creative work can associate other embodiment of the present utility model, and these modes all will fall within protection domain of the present utility model.
Claims (9)
1. a cold stove powder process hot air heating system, it is characterized in that, comprise: the heating unit being connected with the first coal pulverizer (8), described heating unit comprises isolation gas-gas heat exchanger (1) and oil gun combustion chamber (5), it is provided with hot-air channel and heat exchanger channels in described isolation gas-gas heat exchanger (1), being connected with oil gun combustion chamber (5) on described heat exchanger channels, the hot cigarette in described oil gun combustion chamber (5) is in heat exchanger channels circulation and carries out heat exchange with the initial air intake in hot-air channel in isolation gas-gas heat exchanger (1).
2. cold stove powder process hot air heating system according to claim 1, it is characterised in that, described hot-air channel is connected with the 2nd coal pulverizer (9), and described 2nd coal pulverizer (9) is adjacent with described first coal pulverizer (8).
3. cold stove powder process hot air heating system according to claim 1, it is characterized in that, also being provided with hot air isolating air door (2) on described hot-air channel and regulate air door (3), described hot air isolating air door (2) and adjustment air door (3) are arranged at the both sides of isolation gas-gas heat exchanger (1) respectively along the circulating direction of hot-air channel.
4. cold stove powder process hot air heating system according to claim 3, it is characterized in that, also being provided with at least one thermometer (10) on described hot-air channel, described thermometer (10) is arranged on and regulates between air door (3) and isolation gas-gas heat exchanger (1).
5. cold stove powder process hot air heating system according to claim 4, it is characterised in that, at least one thermometer (10) is also arranged between hot air isolating air door (2) and isolation gas-gas heat exchanger (1).
6. cold stove powder process hot air heating system according to claim 1, it is characterized in that, also being provided with blower fan (4) on described heat exchanger channels, described oil gun combustion chamber (5) is positioned between isolation gas-gas heat exchanger (1) and blower fan (4).
7. cold stove powder process hot air heating system according to claim 6, it is characterized in that, described heat exchanger channels is also provided with hot cigarette Insulated wind door (6), and described isolation gas-gas heat exchanger (1) is positioned between oil gun combustion chamber (5) and hot cigarette Insulated wind door (6).
8. cold stove powder process hot air heating system according to claim 1, it is characterised in that, described hot-air channel is all connected stokehold heat primary air mother's pipe (7) with heat exchanger channels, and from stokehold heat primary air mother's pipe (7) air intake.
9. cold stove powder process hot air heating system according to claim 2, it is characterized in that, described hot-air channel is connected with the cold airduct of the 2nd coal pulverizer (9), and in the hot cigarette and cold airduct of heat exchange, enter the 2nd coal pulverizer burner hearth after gas and vapor permeation in hot-air channel, for solving the hot cigarette emission problem through heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521030946.9U CN205279435U (en) | 2015-12-11 | 2015-12-11 | Hot -blast heating system of black furnace powder process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521030946.9U CN205279435U (en) | 2015-12-11 | 2015-12-11 | Hot -blast heating system of black furnace powder process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205279435U true CN205279435U (en) | 2016-06-01 |
Family
ID=56064012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521030946.9U Active CN205279435U (en) | 2015-12-11 | 2015-12-11 | Hot -blast heating system of black furnace powder process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205279435U (en) |
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2015
- 2015-12-11 CN CN201521030946.9U patent/CN205279435U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |