CN206056311U - A kind of tubular heating stove waste-heat recovery device - Google Patents
A kind of tubular heating stove waste-heat recovery device Download PDFInfo
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- CN206056311U CN206056311U CN201621010024.6U CN201621010024U CN206056311U CN 206056311 U CN206056311 U CN 206056311U CN 201621010024 U CN201621010024 U CN 201621010024U CN 206056311 U CN206056311 U CN 206056311U
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- fuel gas
- preheating
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
This utility model provides a kind of new tubular heater waste-heat recovery device, and described device includes flue, primary fuel gas preheating precision processing device, main air preheating device, blower fan, secondary fuel gas preheating precision processing device, secondary air preheating device.The flue gas that heating furnace is discharged, primary fuel gas is entered after flue and preheats precision processing device and main air preheating device, after fuel gas and air heat-exchange, secondary fuel gas is blasted by blower fan and preheats precision processing device and secondary air preheating device, flue gas is discharged Jing after heat exchange.Fuel gas preheating precision processing device of the present utility model is tubular structure, and the air flue gas heat-exchange unit heat exchange original paper of main air preheating device is the tubular structure with turbulence structure pipe tyre extended surface structure in plank frame or pipe；The air flue gas heat-exchange unit of secondary air preheating device is condensing heat exchanger.Based on the tubular heater waste-heat recovery device, flue gas acid dew point temperature can be down to the water dew point being close to close to flue gas.
Description
Technical field
This utility model belongs to tubular heater field, more particularly to a kind of dress of tubular heating stove waste heat recovery
Put, especially a kind of tubular heating stove waste-heat recovery device for being applied to petrochemical industry.
Background technology
Tubular heater is the main energy consumption equipment of petrochemical plant, and oxynitride, sulfide and flue gas
The capital equipment of grain thing discharge.Tubular heater exhaust gas temperature is reduced, thermal efficiency of heating furnace is improved, fuel consumption is reduced, is reduced
Plant energy consumption；The discharge of oxynitride, sulfide and flue gas particles is reduced, is that tubular heater needs what is solved mainly to ask
Topic.
At present, heating furnace is exchanged heat with various cold mediums by flue gas, exhaust gas temperature can be down to it is temperature required, but due to
There is the presence of hydrogen sulfide sulfides in fuel gas, cause sulphuric acid dew point temperature higher, temperature is down to below sulphuric acid dew point temperature
Dew point corrosion will occur, device long-term operation is affected, so, solve the problems, such as that dew point corrosion is to improve thermal efficiency of heating furnace
One key issue.
In heating furnace pollutant emission, the discharge excessive problem of oxynitride and flue gas particles is also current heating furnace
The main bugbear for facing.At present, nitrogen oxides in effluent concentration of emission is reduced mainly by low nitrogen oxide burner
To realize, but the program cannot solve oxynitride to the fuel for using salts substances containing ammonia and nitrogen-containing organic compound and surpass
Mark problem.
Further, since fuel gas there are problems that, with liquid, containing C5 and above long chain alkane, causing burning completely
Entirely, flue gas particles, and heating furnace urgent problem at present are produced.
It is described on end, by the design of heating furnace waste-heat recovery device, reduce exhaust gas temperature, it is to avoid heat transmission equipment occurs dew
Spot corrosion, reduces the generation of nitrogen oxides and particulate matter, with important economic benefit and social benefit.
Utility model content
The device of a kind of new tubular heater waste heat recovery that this utility model is provided, comes by the following technical programs
Realize：
A kind of new tubular heater waste-heat recovery device, including flue 2, primary fuel gas preheating precision processing device 3,
Main air preheating device 4, blower fan 5, secondary fuel gas preheating precision processing device 6, secondary air preheating device 7.Wherein flue 2
Entrance be connected with the outlet of heating furnace 1, the outlet of flue 2 connects primary fuel gas preheating precision processing device 3 and one-level simultaneously
The flue gas of the smoke inlet of air preheater 4, primary fuel gas preheating precision processing device 3 and main air preheating device 4 goes out
Mouth is while the entrance of connecting fan 5, connection secondary fuel gas preheats precision processing device 6 and secondary air for the outlet of blower fan 5 simultaneously
The exhanst gas outlet row of the smoke inlet of preheating device 7, secondary fuel gas preheating precision processing device 6 and secondary air preheating device 7
Sky is connected with the pollutant control device in downstream；Fuel gas to be preheated is preheated the combustion of precision processing device 6 by secondary fuel gas
Material gas entrance is entered, and the fuel gas entrance that its outlet preheats precision processing device 3 with primary fuel gas is connected, the preheating of primary fuel gas
The fuel gas outlet of precision processing device 3 is connected with burner 8；Air to be preheated is entered by the air of secondary air preheating device 7
Mouthful enter, its outlet is connected with the air intake of main air preheating device 4, the air outlet slit of main air preheating device 4 and
Burner 8 is connected.
The primary fuel gas preheating precision processing device 3 includes at least 1 fuel gas preheating precision processing device, using parallel connection
Pattern, wherein equipped with catalyst, using the high-temperature flue gas from heating furnace 1（200~450℃）Heat fuel gas and in catalyst
The purification of fuel gas is realized under effect.The fuel gas preheating refining treatment apparatus adopt tubular structure, and pipe is built with refining catalytic
Agent, walks flue gas outside pipe, catalyst carries out removing ammonia salts substances and nitrogen-containing organic compound with to fuel gas, removes Containing Sulfur
Compound, removes the effect of more than C6 alkane components.
The main air preheating device 4 at least includes 1 air-flue gas heat-exchange unit, using paralleling model, using from
The high-temperature flue gas of heating furnace 1（200~450℃）Heating air, the heat exchange original paper of air-flue gas is using in plank frame or pipe
Tubular structure with turbulence structure pipe tyre extended surface structure.
The secondary fuel gas preheating precision processing device 6 includes at least 1 fuel gas preheating precision processing device, using parallel connection
Pattern, wherein equipped with catalyst, using the cigarette that precision processing device 3 and main air preheating device 4 are preheated from primary fuel gas
Gas heats fuel gas and the purified treatment of fuel gas is realized under catalyst action, and fuel gas is preheated refining plant and tied using tubular type
Structure, pipe built with catalyst for refining, pipe it is outer walk flue gas, catalyst with carrying out removing ammonia salts substances and organic contain to fuel gas
Nitrogen compound, removes sulfur-containing compound, removes the effect of more than C6 alkane components.
The secondary heat exchange device 4 at least includes 1 air-flue gas heat-exchange unit, using paralleling model, using from one-level
The flue gas air of fuel gas preheating precision processing device 3 and main air preheating device 4.The sky that this grade of heat-exchanger rig is used
Gas-flue gas heat-exchange unit is condensing heat exchanger, and condensing heat exchanger heat exchange original paper is the plate that can promote water vapor condensation in flue gas
The tubular structure of water vapor condensation extended surface structure in flue gas, material can be promoted in formula structure or pipe with turbulence structure pipe in addition to adopt
Preventing corrosion of dew points material, band condensation water collection tapping equipment, housing adopt acid-resistance aqueous corrosion structure or using with the function
Lining material protection.
Secondly, a kind of exhaust heat recovering method using new tubular heater waste-heat recovery device realization is as follows：
The flue gas that one or more heating furnace 1 is discharged from body of heater, respectively enters primary fuel by being divided into two strands after flue 2
After gas preheating precision processing device 3 and main air preheating device 4, with fuel gas and air heat-exchange, lower two grades are blasted by blower fan 5
Fuel gas preheating precision processing device 6 and secondary air preheating device 7, flue gas are discharged Jing after heat exchange.Air to be preheated enters two
Level air preheater 7 and main air preheating device 4, pending fuel gas enter secondary fuel gas and preheat precision processing device
6 and primary fuel gas preheating precision processing device 3.Heating is sent into through the air for preheating and the fuel gas for passing through preheating precision processing
Burn in stove.
Primary fuel gas preheating precision processing device 3 and secondary fuel in the tubular heating stove waste-heat recovery device
Fuel gas preheating precision processing device in gas preheating precision processing device 6 can be shell-and-plate structure, or tube shell type structure,
Fuel makes the passage equipped with catalyst leave with rage, and flue gas walks another passage.
Air in the tubular heating stove waste-heat recovery device can be empty into two grades after blower fan pressurizes
Gas preheating device 7 and main air preheating device 4.
Fuel gas in the tubular heating stove waste-heat recovery device is by fuel gas ductwork pressure, by cartridge
Road enters secondary fuel gas preheating precision processing device 6 and primary fuel gas preheating precision processing device 3.
The tubular heating stove waste-heat recovery device that this utility model is provided is had the advantage that compared with prior art：
（1）Flue gas acid dew point temperature can be down to the water dew point being close to close to flue gas；
（2）Thoroughly solve when flue-gas temperature is reduced to below 80 DEG C, the corrosion of sulfuric acid at dew point of cryogenic heat exchange equipment is asked
Topic；
（3）Can stably realize that discharged nitrous oxides concentration is less than 80mg/Nm3Minimum discharge；
（4）Can stably realize that flue gas particles concentration of emission is less than 15mg/Nm3Minimum discharge；
（5）This utility model is different using different precision processing catalyst according to fuel gas component, and using different potential temperatures
Fuel gas is heated to different temperature by flue gas, and to realize using minimum catalyst amount, minimum equipment investment reaches most
Good fuel gas refinement treatment effect.
With reference to the accompanying drawings and detailed description this utility model is further detailed, but accompanying drawing is real with concrete
The mode of applying is not intended to limit scope of the present utility model.
Description of the drawings
Fig. 1 is a kind of process flow diagram of utilization this utility model device.
Wherein, 1 heating furnace, 2 flues, 3 primary fuel gas preheating precision processing device（Including 1 fuel gas preheating precision processing
Device）, 4 main air preheating devices（Including 1 air-flue gas heat-exchange unit）, 5 blower fans, 6 secondary fuel gas preheating precision processing dress
Put（Including 1 fuel gas preheating precision processing device）, 7 secondary air preheating devices（Including 1 air-flue gas heat-exchange unit）, 31
It is catalyst with 61.
Fig. 2 is another kind of process flow diagram using using this utility model device.
Wherein, 1 heating furnace, 2 flues, 3 primary fuel gas preheating precision processing device（Including 1 fuel gas preheating precision processing
Device）, 4 main air preheating devices（Including 2 air-flue gas heat-exchange units in parallel, respectively 41 and 42）, 5 blower fans, 6 two
Level fuel gas preheating precision processing device（Including 1 fuel gas preheating precision processing device）, 7 secondary air preheating devices（Including 1
Air-flue gas heat-exchange unit）, 31 and 61 is catalyst.
Specific embodiment
Fuel gas temperature can be improved to 100 DEG C ~ 350 DEG C, can be by ammonia salts substances and organic nitrogen-containing in fuel gas
Compound is down to below 10ppm, and total sulfur is down to 10mg/Nm3Hereinafter, more than C6 alkane components are down to less than 0.1%.
Embodiment 1：
As shown in figure 1, fuel gas is successively through secondary fuel gas preheating precision processing device 6（Built with catalyst 61）With one
Level fuel gas preheating precision processing device 3（Built with catalyst 31）After process, fuel gas temperature can be improved to 100 DEG C ~ 350,
Ammonia salts substances and nitrogen-containing organic compound in fuel gas can be down to below 10ppm, total sulfur is down to 10mg/Nm3Hereinafter, C6
Above alkane component is down to less than 0.1%, enters back into burner, mixes for 100 DEG C ~ 450 DEG C combustion airs with temperature after preheating and sends out
Raw combustion reaction, combustion product are exchanged heat with the processing medium into heating furnace 1, are then discharged from flue gas of heating furnace outlet,
The flue gas of discharge is separated into two strands Jing after flue 2 and respectively enters primary fuel gas preheating precision processing device 3（Built with catalyst
31）With secondary fuel gas being blasted by blower fan after main air preheating device 4, with fuel gas and air heat-exchange preheat precision processing dress
Put 6（Built with catalyst 61）With secondary air preheating device 7, after flue gas and fuel gas and air heat-exchange, temperature be down to 70 DEG C ~
140 DEG C of discharges.
Embodiment 2：
As shown in Fig. 2 fuel gas is successively through secondary fuel gas preheating precision processing device 6（Built with catalyst 61）With one
Level fuel gas preheating precision processing device 3（Built with catalyst 31）After process, fuel gas temperature can be improved to 100 DEG C ~ 350,
Ammonia salts substances and nitrogen-containing organic compound in fuel gas can be down to below 10ppm, total sulfur is down to 10mg/Nm3Hereinafter, C6
Above alkane component is down to less than 0.1%, enters back into burner, mixes for 100 DEG C ~ 450 DEG C combustion airs with temperature after preheating and sends out
Raw combustion reaction, combustion product are exchanged heat with the processing medium into heating furnace 1, are then discharged from flue gas of heating furnace outlet,
The flue gas of discharge is separated into two strands Jing after flue 2 and respectively enters primary fuel gas preheating precision processing device 3（Built with catalyst
31）Air-the flue gas heat-exchange unit 41 and 42 in parallel with two in main air preheating device 4, with fuel gas and air heat-exchange
Secondary fuel gas is blasted by blower fan afterwards and preheats precision processing device 6（Built with catalyst 61）With secondary air preheating device 7, cigarette
After gas and fuel gas and air heat-exchange, temperature is down to 70 DEG C ~ 140 DEG C discharges.
Claims (7)
1. a kind of tubular heating stove waste-heat recovery device, including flue（2）, primary fuel gas preheating precision processing device（3）、
Main air preheating device（4）, blower fan（5）, secondary fuel gas preheating precision processing device（6）, secondary air preheating device（7）；
Characterized in that, the flue（2）Entrance and heating furnace（1）Outlet be connected, flue（2）Outlet simultaneously connect one-level combustion
Material gas preheating precision processing device（3）With main air preheating device（4）Smoke inlet, primary fuel gas preheating precision processing device
（3）With main air preheating device（4）Exhanst gas outlet simultaneously connecting fan（5）Entrance, blower fan（5）Outlet simultaneously connect
Secondary fuel gas preheats precision processing device（6）With secondary air preheating device（7）Smoke inlet, secondary fuel gas preheating essence at
Reason device（6）With secondary air preheating device（7）Exhanst gas outlet emptying or be connected with the pollutant control device in downstream；Treat pre-
The fuel gas of heat preheats precision processing device by secondary fuel gas（6）Fuel gas entrance enter, its outlet is pre- with primary fuel gas
Hot precision processing device（3）Fuel gas entrance be connected, primary fuel gas preheating precision processing device（3）Fuel gas outlet with burning
Device（8）It is connected；Air to be preheated is by secondary air preheating device（7）Air intake enter, its outlet is pre- with main air
Thermal（4）Air intake be connected, main air preheating device（4）Air outlet slit and burner（8）It is connected.
2. a kind of tubular heating stove waste-heat recovery device according to claim 1, it is characterised in that the one-level combustion
Material gas preheating precision processing device（3）Including at least one fuel gas preheating precision processing device.
3. a kind of tubular heating stove waste-heat recovery device according to claim 1, it is characterised in that the one-level is empty
Gas preheating device（4）At least include an air-flue gas heat-exchange unit, its heat exchange original paper is band turbulence structure in plank frame or pipe
The tubular structure of pipe tyre extended surface structure.
4. a kind of tubular heating stove waste-heat recovery device according to claim 1, it is characterised in that two grades of combustions
Material gas preheating precision processing device（6）Including at least one fuel gas preheating precision processing device.
5. a kind of tubular heating stove waste-heat recovery device according to claim 1, it is characterised in that described two grades empty
Gas preheating device（7）At least include an air-flue gas heat-exchange unit, and be condensing heat exchanger.
6. a kind of tubular heating stove waste-heat recovery device according to claim 1, it is characterised in that the fuel gas
Preheating precision processing device at least includes one-level.
7. a kind of tubular heating stove waste-heat recovery device according to claim 6, it is characterised in that the fuel gas
Preheating precision processing device includes one-level or two grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010024.6U CN206056311U (en) | 2016-08-31 | 2016-08-31 | A kind of tubular heating stove waste-heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621010024.6U CN206056311U (en) | 2016-08-31 | 2016-08-31 | A kind of tubular heating stove waste-heat recovery device |
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| Publication Number | Publication Date |
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| CN206056311U true CN206056311U (en) | 2017-03-29 |
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| CN201621010024.6U Active CN206056311U (en) | 2016-08-31 | 2016-08-31 | A kind of tubular heating stove waste-heat recovery device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382824A (en) * | 2016-08-31 | 2017-02-08 | 上海浩用节能工程有限公司 | Novel tube heating furnace waste heat recovery system and method |
-
2016
- 2016-08-31 CN CN201621010024.6U patent/CN206056311U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382824A (en) * | 2016-08-31 | 2017-02-08 | 上海浩用节能工程有限公司 | Novel tube heating furnace waste heat recovery system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180521 Address after: 201203 room 307, 887 lane, 887 Chong lane, Zhangjiang hi tech park, Pudong, Pudong New Area, Shanghai. Patentee after: The great industrial furnace Co., Ltd in Shanghai Address before: 201203 Pudong New Area, Shanghai, China (Shanghai) free trade trial area, 8 8, 301-302 Patentee before: Shanghai Hao energy saving Engineering Co., Ltd. |
|
| TR01 | Transfer of patent right |