CN204100575U - A kind of heat exchange type hot-blast stove with smoke circulating device - Google Patents
A kind of heat exchange type hot-blast stove with smoke circulating device Download PDFInfo
- Publication number
- CN204100575U CN204100575U CN201420132136.3U CN201420132136U CN204100575U CN 204100575 U CN204100575 U CN 204100575U CN 201420132136 U CN201420132136 U CN 201420132136U CN 204100575 U CN204100575 U CN 204100575U
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- flue gas
- heat exchanger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to heat energy technology field, and spy relates to a kind of heat exchange type hot-blast stove with smoke circulating device, and the utility model is widely used in drying, heat energy industry, is particularly suitable for the dry heating field of constant low temperature.The utility model provides a kind of heat exchange type hot-blast stove with smoke circulating device, when high-temperature flue gas exceedes the temperature of upper limit setting, automatic air regulating valve in the circulatory system will increase aperture according to automatically controlled instruction, aperture increase just increases return air amount thus reduces the temperature of high-temperature flue gas, fundamentally avoid high-temperature flue gas and cross cause thermal damage because of the limiting temperature exceeding heat exchanger materials tolerance, the low-temperature flue gas secondary looped back is exactly the operation of a waste heat recovery by heat exchanger heat exchange, serves an extraordinary energy-saving and cost-reducing effect.
Description
Technical field
The utility model relates to heat energy technology field, and spy relates to a kind of heat exchange type hot-blast stove with smoke circulating device, and the utility model is widely used in drying, heat energy industry, is particularly suitable for the dry heating field of constant low temperature.
Background technology
Existing, especially for the equipment of microorganism formulation low temperature drying heat supply, shortcoming is: one, and the automaticity of hot-blast stove is low, and temperature is uncontrollable, product quality can not get ensureing; Its two, the heat exchanger of conventional hot blast stove is not because have the protection of smoke circulating system, and be in the state of hot operation for a long time, service life is not long; Its three, conventional heat supply also has the mode adopting steam heating, but the high production cost that causes of energy consumption is too high, adopts the heat exchange type hot-blast stove heat supply with smoke circulating device, compares, can save energy more than 15% when EAT is identical with boiler heat supplying.
Summary of the invention
For the deficiency of background technology, the utility model provides a kind of heat exchange type hot-blast stove with smoke circulating device, when high-temperature flue gas exceedes the temperature of upper limit setting, automatic air regulating valve in the circulatory system will increase aperture according to automatically controlled instruction, aperture increase just increases return air amount thus reduces the temperature of high-temperature flue gas, fundamentally avoid high-temperature flue gas and cross cause thermal damage because of the limiting temperature exceeding heat exchanger materials tolerance, the low-temperature flue gas secondary looped back is exactly the operation of a waste heat recovery by heat exchanger heat exchange, serve an extraordinary energy-saving and cost-reducing effect.Design like this breaches a Pinch technology difficult problem for heat exchange type heat exchanger for hot-blast stove hot operation defect in the past.
The technical solution of the utility model is: a kind of heat exchange type hot-blast stove with smoke circulating device, comprise the combustion furnace for fuel combustion reaction, for the heat exchanger of thermal energy exchange, self-induced scrubber for flue gas ash removal and the chimney for fume emission, wherein, hot-air is passed to heat exchanger by preposition deduster by combustion furnace, heat exchanger exit connects auto-excitation type respectively and connects deduster and automatic air regulating valve, self-induced scrubber is connected with chimney by air-introduced machine, it is characterized in that: it also comprises smoke circulating system, smoke circulating system comprises automatic air regulating valve, flue gas recirculation pipeline, flue gas recirculation blower fan, preposition deduster, high-temperature flue gas temperature probe, electric-control system, hot blast temperature probe, wherein automatic air regulating valve one end is connected with self-induced scrubber, the other end and flue gas recirculation blower fan, flue gas re-enters in deduster by flue gas recirculation pipeline by flue gas recirculation blower fan, high-temperature flue gas temperature probe is placed on the air outlet of preposition deduster, hot blast temperature probe is placed on heat exchanger wind outlet, for the temperature of heat exchanger air-out.
There is the heat exchange type hot-blast stove of smoke circulating device as above, it is characterized in that: described electric-control system gathers high-temperature flue gas temperature probe signal and according to this Signal Regulation automatic air regulating valve.
Have the heat exchange type hot-blast stove of smoke circulating device as above, it is characterized in that: it also comprises furnace bottom air blast and heat exchanger air blast, described furnace bottom air blast is used for combustion furnace pucking wind, and described heat exchanger air blast is used for heat exchanger air blast.
Technique effect of the present utility model is: the service life considerably increasing heat exchange type hot-blast stove, breaches the technical barrier that heat exchange type heat exchanger for hot-blast stove in the past cannot be continuously long-running; Reduce energy consumption simultaneously and improve production efficiency.
Accompanying drawing explanation
Fig. 1 is realistic novel overall structural representation.
Detailed description of the invention
Description of reference numerals: 1-combustion furnace, 2-heat exchanger, 3-deduster, 4-chimney, 5-air-introduced machine, 6-circulating fan, 7-furnace bottom air blast, 8-heat exchanger air blast, 9-deduster, 10-high-temperature flue gas temperature probe, 11-hot blast temperature probe, 12-flue gas recirculation pipeline, 13-electric-control system, 14-automatic air regulating valve
Below in conjunction with accompanying drawing to being originally that utility model is described further.
As shown in Figure 1, the heat exchange type hot-blast stove with smoke circulating device of the present utility model, it comprises the combustion furnace 1, the heat exchanger 2 for thermal energy exchange, the self-induced scrubber 3 for flue gas ash removal and the chimney 4 for fume emission that react for fuel combustion; Hot-air is passed to heat exchanger 2 by preposition deduster 9 by combustion furnace 1, and heat exchanger 2 exports and connects auto-excitation type respectively and connect deduster 3 and automatic air regulating valve 14.Self-induced scrubber 3 is connected with chimney 4 by air-introduced machine 5.
As shown in Figure 1, smoke circulating system of the present utility model comprises automatic air regulating valve 14, flue gas recirculation pipeline 12, flue gas recirculation blower fan 6, preposition deduster 9, high-temperature flue gas temperature probe 10, electric-control system 13, hot blast temperature probe 11, wherein automatic air regulating valve 14 one end is connected with self-induced scrubber 3, the other end and flue gas recirculation blower fan 6, flue gas re-enters in deduster 9 by flue gas recirculation pipeline 12 by flue gas recirculation blower fan 6; High-temperature flue gas temperature probe 10 is placed on the air outlet of preposition deduster 9; Hot blast temperature probe 11 is placed on heat exchanger 2 wind outlet, for the temperature of heat exchanger 2 air-out.Electric-control system 13 of the present utility model compares analysis for the PLC control system of automatic control by the data of returning to high-temperature flue gas temperature probe 10 collect and transmit, when high-temperature flue gas exceedes temperature of limiting, when likely injuring heat exchanger safe operation, electric-control system 13 will send instruction, automatic air regulating valve 14 regulates the aperture of ventilation automatically according to the instruction of electric-control system 13, thus regulates the temperature of high-temperature flue gas.
As shown in Figure 1, the utility model also comprises furnace bottom air blast 7 and heat exchanger air blast 8, furnace bottom air blast 7 for the air blast of combustion furnace 1 furnace bottom, ensures that fuel (coal or the biomass fuel) combustion reaction in combustion furnace has sufficient oxygen supply and Thorough combustion, avoids waste.Heat exchanger air blast 8 is for heat exchanger 2 air blast, and the effect of heat exchanger air blast 8 is for heat energy user provides enough air quantity, overcomes the resistance of heat exchanger itself simultaneously.
Operation principle of the present utility model is: fuel enters into heat exchanger 2 at the high-temperature flue gas that combustion furnace 1 combustion produces by the high-temperature flue gas after the dedusting of preposition smoke duster 9 and carries out abundant heat exchange, and the clean air being sent to heat exchanger by cold-air blower 8 obtains clean hot-air through heat exchanger 2 heat exchange and delivers to user side.Hot blast through heat exchanger 2 is lowered the temperature because have exchanged energy.A flue gas part after cooling enters into be sent into chimney 4 by smoke induced draught fan 5 after dust-removal and desulfurizing process in auto-excitation type granite duster 3 and discharges.Another part low-temperature flue gas is sent into the front end of preposition deduster 9 through flue gas recirculation pipeline 12 by flue gas recirculation blower fan 6 through automatic air regulating valve 14.The high-temperature flue gas entry end of heat exchanger 2 is provided with high-temperature flue gas temperature probe 10, the low-temperature flue gas port of export of heat exchanger 2 arranges hot blast temperature probe 11, the lower limit temperature that the data feeding back to automatic control circuit 13 when hot blast temperature probe 11 collection are arranged lower than it, illustrate that heat exchanger heat exchange is insufficient, robot control system(RCS) 13 just sends alarm command, remind operating personnel to check the reason that heat-exchange system air-out exceedes, avoid energy loss.When high-temperature flue gas is by the measuring tempeature of high-temperature flue gas temperature probe 10, exceeded the ceiling temperature that automatic control circuit 13 is arranged, automatic control circuit 13 will send signal command automatic air regulating valve 14 and increase aperture increasing return air amount, reduces the temperature of high-temperature flue gas.
Claims (3)
1. one kind has the heat exchange type hot-blast stove of smoke circulating device, comprise the combustion furnace for fuel combustion reaction, for the heat exchanger of thermal energy exchange, self-induced scrubber for flue gas ash removal and the chimney for fume emission, wherein, hot-air is passed to heat exchanger by preposition deduster by combustion furnace, heat exchanger exit connects auto-excitation type respectively and connects deduster and automatic air regulating valve, self-induced scrubber is connected with chimney by air-introduced machine, it is characterized in that: it also comprises smoke circulating system, smoke circulating system comprises automatic air regulating valve, flue gas recirculation pipeline, flue gas recirculation blower fan, preposition deduster, high-temperature flue gas temperature probe, electric-control system, hot blast temperature probe, wherein automatic air regulating valve one end is connected with self-induced scrubber, the other end and flue gas recirculation blower fan, flue gas re-enters in deduster by flue gas recirculation pipeline by flue gas recirculation blower fan, high-temperature flue gas temperature probe is placed on the air outlet of preposition deduster, hot blast temperature probe is placed on heat exchanger wind outlet, for measuring the temperature of heat exchanger air-out.
2. there is the heat exchange type hot-blast stove of smoke circulating device as claimed in claim 1, it is characterized in that: described electric-control system gathers high-temperature flue gas temperature probe signal and according to this Signal Regulation automatic air regulating valve.
3. there is the heat exchange type hot-blast stove of smoke circulating device as claimed in claim 1 or 2, it is characterized in that: it also comprises furnace bottom air blast and heat exchanger air blast, described furnace bottom air blast is used for combustion furnace pucking wind, and described heat exchanger air blast is used for heat exchanger air blast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132136.3U CN204100575U (en) | 2014-03-24 | 2014-03-24 | A kind of heat exchange type hot-blast stove with smoke circulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132136.3U CN204100575U (en) | 2014-03-24 | 2014-03-24 | A kind of heat exchange type hot-blast stove with smoke circulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204100575U true CN204100575U (en) | 2015-01-14 |
Family
ID=52268995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420132136.3U Withdrawn - After Issue CN204100575U (en) | 2014-03-24 | 2014-03-24 | A kind of heat exchange type hot-blast stove with smoke circulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204100575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940083A (en) * | 2014-03-24 | 2014-07-23 | 湖北工业大学 | Heat exchange type hot-blast stove with flue gas recirculation device |
-
2014
- 2014-03-24 CN CN201420132136.3U patent/CN204100575U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940083A (en) * | 2014-03-24 | 2014-07-23 | 湖北工业大学 | Heat exchange type hot-blast stove with flue gas recirculation device |
| CN103940083B (en) * | 2014-03-24 | 2016-06-08 | 湖北工业大学 | A kind of heat exchange type hotblast stove with smoke circulating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150114 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |