CN205717302U - A kind of air preheater system - Google Patents
A kind of air preheater system Download PDFInfo
- Publication number
- CN205717302U CN205717302U CN201620675818.8U CN201620675818U CN205717302U CN 205717302 U CN205717302 U CN 205717302U CN 201620675818 U CN201620675818 U CN 201620675818U CN 205717302 U CN205717302 U CN 205717302U
- Authority
- CN
- China
- Prior art keywords
- air
- air preheater
- rotary regenerative
- bourdon
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a kind of air preheater system, including rotary regenerative air preheater and recovery system of leaking out, described recovery system of leaking out includes blower fan, the blast pipe being connected on air inlet, the discharge pipe that is connected on fan outlet, the arrival end of described blast pipe is arranged at the leaking out of rotary regenerative air preheater, and the port of export of described discharge pipe is arranged in the porch of rotary regenerative air preheater air side or the gas flow paths of air side.Native system is beneficial to improve the thermal efficiency of boiler, can realize the protection of the cold end corrosion to rotary regenerative air preheater metallic walls simultaneously.
Description
Technical field
This utility model relates to heat exchanger system field, particularly relates to a kind of air preheater system.
Background technology
Rotary regenerative air preheater is called for short air preheater, is the heat-exchange apparatus of large-sized boiler, due to relative to tubular air
Preheater, have that compact conformation, volume are little, heat-transfer surface density high, overall mass is light, metal consumption is few, it is easy for installation to arrange,
The features such as cold end corrosion is lighter, are widely used on station boiler.Air preheater is that the flue gas heat utilizing boiler to discharge is come pre-
Heat enters boiler and participates in the air needed for burning, or the reclaimer as boiler smoke heat, in order to used by above heat
Making the equipment of other purposes such as fuel dehumidifying, heating, the purpose that this equipment is arranged is to improve the efficiency of boiler.
The existing rotary regenerative air heater recovery system blower fan that leaks out reclaims the cold end in air preheater, hot junction, axial wind, then leads to
Cross fan outlet and squeeze into the air preheater secondary wind port of export, reclaim outlet pathogenic wind-warm after blower fan converges and be about 160 degrees centigrade,
And air preheater secondary wind outlet pathogenic wind-warm about 320 degrees centigrade, although reclaim wind total amount and be less than secondary wind total amount, but also can reduce
Secondary air temperature 2 ~ 3 degrees Celsius, is unfavorable for the efficiency of combustion of boiler.
Utility model content
For in above-mentioned prior art, in use, it is unfavorable to exist for rotary air preheater air leak recovery system
In the problem of boiler combustion efficiency problem, this utility model provides a kind of air preheater system.
For solving the problems referred to above, a kind of air preheater system that this utility model provides solves to ask by techniques below main points
Topic: a kind of air preheater system, including rotary regenerative air preheater and recovery system of leaking out, described in recovery system of leaking out include wind
Machine, the blast pipe being connected on air inlet, the discharge pipe that is connected on fan outlet, the arrival end of described blast pipe sets
Being placed at the leaking out of rotary regenerative air preheater, the port of export of described discharge pipe is arranged at rotary regenerative air preheater air side
Porch or air side gas flow paths on.
Concrete, recovery system of more than leaking out is carried out for the air radially, axially leaked by rotary regenerative air preheater
Reclaim, after the air mixing of recovery, be directed to porch or the gas of air side of rotary regenerative air preheater air side by discharge pipe
On body flow path, it is any that the gas flow paths of air above side i.e. refers between rotary regenerative air preheater air side two ends
Position.
Being different from prior art, above discharge pipe is the change of junction point position on rotary regenerative air preheater, can make
The air being recovered carries out heat exchange with the heat transfer element on rotary regenerative air preheater, so, can absorb boiler smoke further
Heat, be proven, use this case provide technical scheme, the leaving air temp of rotary regenerative air preheater air side is compared
In prior art, more than 1 degree Celsius can be improved, solve the leakage air impact swinging air preheat injected in prior art
The problem of device air side leaving air temp, so, the beneficially raising of boiler efficiency.
Further, due to the working environment that rotary regenerative air preheater is special, rotary regenerative air preheater air side is drawn
The air entered there may be a certain amount of oxysulfide, such as sulfur dioxide gas.Meanwhile, rotary regenerative air preheater air side
The metallic walls wall temperature of cold end is typically in the range of between 65-100 degree Celsius, the air themperature of the cold end of rotary regenerative air preheater air side
For room temperature, as a example by 25 degrees Celsius, this allows for the problem that the cold end of rotary regenerative air preheater air side there is also cold end corrosion.
In this programme, arranging position by change the discharge pipe port of export, the available temperature about 160 through recovery system mixing of leaking out is taken the photograph
The leakage air of family name's degree, heats the wall of rotary regenerative air preheater air side, when after the wall temperature height of metallic walls, and can
It is effectively improved the situation of the cold end corrosion of the cold end of rotary regenerative air preheater, reaches to improve rotary regenerative air preheater service life
Or reduce the technique effect of rotary regenerative air preheater fault rate.
Further technical scheme is:
Owing to the cold side metal wall temperature of rotary regenerative air preheater air side is minimum, for improving or stopping cold end corrosion feelings
Condition, is beneficial to heat transfer element on leakage air and rotary regenerative air preheater simultaneously and carries out the degree of heat exchange, described discharge pipe
The port of export be arranged at the porch of rotary regenerative air preheater air side.
For making leakage air to be scattered in as far as possible in the air-flow of rotary regenerative air preheater air side, it is beneficial to let out
Blank gas is through the caloric receptivity of rotary regenerative air preheater, and making to leak air can affect the metal of larger area simultaneously
Wall, to reach the cold end corrosion protective effect to corresponding part metallic walls, is beneficial on the port of export leaking out recovery system simultaneously
Produce negative pressure, be beneficial to will leak out in the air-flow that air introduces rotary regenerative air preheater air side, also include being connected to discharge pipe
Bourdon's tube on the port of export, one end of described bourdon's tube is connected with the port of export of discharge pipe, and described bourdon's tube is free end
Pore sectional area is more than connecting the bell mouth shape structure of pore sectional area at end.
As a kind of bourdon's tube scheme reducing leak air dynamic resistance, the pore on described bourdon's tube is the most different
Hole, footpath, and by the free end of the connection end of bourdon's tube to bourdon's tube, the diameter of described concentric different diameter hole becomes big.
It is beneficial to will leak out air introduces the technical scheme in rotary regenerative air preheater air side air-flow as a kind of, described
The port of export direction of bourdon's tube is parallel with the axial direction of rotary regenerative air preheater, and when bourdon's tube draws gas, draws
Go out the flow direction of gas and air flow in rotary regenerative air preheater air side altogether to.
As by the air that leaks out, metallic walls on rotary regenerative air preheater being formed the technical scheme of many point protections,
Multiple port of export it is provided with on described discharge pipe.More than protection is cold end corrosion protection.
This utility model has the advantages that
Being different from prior art, above discharge pipe is the change of junction point position on rotary regenerative air preheater, can make
The air being recovered carries out heat exchange with the heat transfer element on rotary regenerative air preheater, so, can absorb boiler smoke further
Heat, be proven, use this case provide technical scheme, the leaving air temp of rotary regenerative air preheater air side is compared
In prior art, more than 1 degree Celsius can be improved, solve the leakage air impact swinging air preheat injected in prior art
The problem of device air side leaving air temp, so, the beneficially raising of boiler efficiency.
Due to the working environment that rotary regenerative air preheater is special, in the air that rotary regenerative air preheater air side introduces
There may be a certain amount of oxysulfide, such as sulfur dioxide gas.Meanwhile, the metal of the cold end of rotary regenerative air preheater air side
Wall wall temperature is typically in the range of between 65-100 degree Celsius, the air themperature of the cold end of rotary regenerative air preheater air side is room temperature, with
As a example by 25 degrees Celsius, this allows for the problem that the cold end of rotary regenerative air preheater air side there is also cold end corrosion.In this programme,
Position is set by change the discharge pipe port of export, letting out of the available temperature about 160 degrees Celsius through recovery system mixing of leaking out
Blank gas, heats the wall of rotary regenerative air preheater air side, when, after the wall temperature height of metallic walls, being effectively improved
The situation of the cold end corrosion of the cold end of rotary regenerative air preheater, reaches improve rotary regenerative air preheater service life or reduce back
The technique effect of rotary air faults of preheater rate.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of one specific embodiment of air preheater system described in the utility model；
Fig. 2 is in a kind of one specific embodiment of air preheater system described in the utility model, the structure of reaction bourdon's tube
And the schematic diagram of the annexation of bourdon's tube and discharge pipe.
Figure acceptance of the bid note is respectively as follows: 1, rotary regenerative air preheater, and 2, blower fan, 3, blast pipe, 4, discharge pipe, 5, bourdon's tube.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but this utility model be not limited only to
Lower embodiment:
Embodiment 1:
As depicted in figs. 1 and 2, a kind of air preheater system, including rotary regenerative air preheater 1 and recovery system of leaking out, institute
State recovery system of leaking out to include blower fan 2, the blast pipe 3 being connected on blower fan 2 air inlet, be connected to going out on blower fan 2 air outlet
Airduct 4, the arrival end of described blast pipe 3 is arranged at the leaking out of rotary regenerative air preheater 1, the outlet of described discharge pipe 4
End is arranged in the porch of rotary regenerative air preheater 1 air side or the gas flow paths of air side.
Concrete, recovery system of more than leaking out is carried out for the air radially, axially leaked by rotary regenerative air preheater 1
Reclaim, after the mixing of the air of recovery, be directed to the porch of rotary regenerative air preheater 1 air side or air side by discharge pipe 4
In gas flow paths, the gas flow paths of air above side i.e. refers between rotary regenerative air preheater 1 air side two ends
Optional position.
It is different from prior art, the change of junction point position on rotary regenerative air preheater 1 of above discharge pipe 4, can make
The air that must be recovered carries out heat exchange with the heat transfer element on rotary regenerative air preheater 1, so, can absorb boiler smoke further
The heat of gas, is proven, and uses the technical scheme that this case provides, the leaving air temp of rotary regenerative air preheater 1 air side
Compared to prior art, more than 1 degree Celsius can be improved, solve the leakage air impact swinging air injected in prior art
The problem of preheater 1 air side leaving air temp, so, the beneficially raising of boiler efficiency.
Further, due to the working environment that rotary regenerative air preheater 1 is special, rotary regenerative air preheater 1 air side
The air introduced there may be a certain amount of oxysulfide, such as sulfur dioxide gas.Meanwhile, rotary regenerative air preheater 1 is empty
The metallic walls wall temperature of the cold end in gas side is typically in the range of between 65-100 degree Celsius, the sky of the cold end of rotary regenerative air preheater 1 air side
Temperature is room temperature, and as a example by 25 degrees Celsius, this allows for the rotary regenerative air preheater 1 cold end of air side and there is also cold end corrosion
Problem.In this programme, position is set by change discharge pipe 4 port of export, the available temperature through recovery system mixing of leaking out
Spend the leakage air of about 160 degrees Celsius, the wall of rotary regenerative air preheater 1 air side is heated, when the wall of metallic walls
After temperature height, the situation of the cold end corrosion of the cold end of rotary regenerative air preheater 1 can be effectively improved, reach to improve swinging air pre-
Hot device 1 service life or the technique effect of reduction rotary regenerative air preheater 1 fault rate.
Embodiment 2:
The present embodiment is further qualified on the basis of embodiment 1, as depicted in figs. 1 and 2, owing to swinging air is pre-
The cold side metal wall temperature of hot device 1 air side is minimum, for improving or stop cold end corrosion situation, is beneficial to leakage air simultaneously and returns
On rotary air preheater 1, heat transfer element carries out the degree of heat exchange, and it is empty that the port of export of described discharge pipe 4 is arranged at swinging
The porch of air preheater 1 air side.
For making leakage air can be scattered in as far as possible in the air-flow of rotary regenerative air preheater 1 air side, it is beneficial to
Leakage air caloric receptivity when rotary regenerative air preheater 1, making to leak air can affect the gold of larger area simultaneously
Belong to wall, to reach the cold end corrosion protective effect to corresponding part metallic walls, be beneficial at the port of export of recovery system that leaks out simultaneously
Upper generation negative pressure, is beneficial to will leak out in the air-flow that air introduces rotary regenerative air preheater 1 air side, also includes being connected to air-out
Bourdon's tube 5 on pipe 4 port of export, one end of described bourdon's tube 5 is connected with the port of export of discharge pipe 4, and described bourdon's tube 5 is certainly
By end pore sectional area more than connecting the bell mouth shape structure of pore sectional area at end.
As a kind of bourdon's tube 5 scheme reducing leak air dynamic resistance, the pore on described bourdon's tube 5 is concentric
Different diameter hole, and by the free end of the connection end of bourdon's tube 5 to bourdon's tube 5, the diameter of described concentric different diameter hole becomes big.
The technical scheme in air introducing rotary regenerative air preheater 1 air side air-flow, institute is will leak out as a kind of being beneficial to
The port of export direction stating bourdon's tube 5 is parallel with the axial direction of rotary regenerative air preheater 1, and bourdon's tube 5 draws gas
Time, draw in flow direction and rotary regenerative air preheater 1 air side of gas air flow altogether to.
Embodiment 3:
The present embodiment makees limit further on the basis of any one technical scheme that one embodiment of any of the above provides
Fixed, as metallic walls on rotary regenerative air preheater 1 being formed the technical scheme of many point protections by the air that leaks out, described
Multiple port of export it is provided with on discharge pipe 4.More than protection is cold end corrosion protection.
Above content is to combine the further description that this utility model is made by concrete preferred implementation, it is impossible to recognize
Fixed detailed description of the invention of the present utility model is confined to these explanations.Common skill for this utility model art
For art personnel, other embodiments drawn under without departing from the technical solution of the utility model, should be included in this practicality
In novel protection domain.
Claims (6)
1. an air preheater system, including rotary regenerative air preheater (1) and recovery system of leaking out, described in leak out recovery system bag
The blast pipe (3) include blower fan (2), being connected on blower fan (2) air inlet, the discharge pipe (4) being connected on blower fan (2) air outlet,
The arrival end of described blast pipe (3) is arranged at the leaking out of rotary regenerative air preheater (1), it is characterised in that described air-out
The port of export of pipe (4) is arranged in the porch of rotary regenerative air preheater (1) air side or the gas flow paths of air side.
A kind of air preheater system the most according to claim 1, it is characterised in that the port of export of described discharge pipe (4) is arranged
Porch in rotary regenerative air preheater (1) air side.
A kind of air preheater system the most according to claim 1, it is characterised in that also include being connected to discharge pipe (4) outlet
Bourdon's tube (5) on end, one end of described bourdon's tube (5) is connected with the port of export of discharge pipe (4), and described bourdon's tube (5) is
Free end pore sectional area is more than connecting the bell mouth shape structure of pore sectional area at end.
A kind of air preheater system the most according to claim 3, it is characterised in that the pore on described bourdon's tube (5) is same
Heart different diameter hole, and by the free end of the connection end of bourdon's tube (5) to bourdon's tube (5), the diameter of described concentric different diameter hole becomes
Greatly.
A kind of air preheater system the most according to claim 3, it is characterised in that the port of export of described bourdon's tube (5) towards
Direction is parallel with the axial direction of rotary regenerative air preheater (1), and when bourdon's tube (5) draws gas, draws the flowing of gas
In direction and rotary regenerative air preheater (1) air side air flow altogether to.
A kind of air preheater system the most as claimed in any of claims 1 to 5, it is characterised in that described discharge pipe (4)
On be provided with multiple port of export.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620675818.8U CN205717302U (en) | 2016-07-01 | 2016-07-01 | A kind of air preheater system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620675818.8U CN205717302U (en) | 2016-07-01 | 2016-07-01 | A kind of air preheater system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205717302U true CN205717302U (en) | 2016-11-23 |
Family
ID=57318762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620675818.8U Active CN205717302U (en) | 2016-07-01 | 2016-07-01 | A kind of air preheater system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205717302U (en) |
-
2016
- 2016-07-01 CN CN201620675818.8U patent/CN205717302U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104456610B (en) | A kind of flue gas waste heat recovery system of steam jet heat pump circulation | |
| CN105890414A (en) | Flue gas waste heat recovery device capable of changing super conductive tube rapidly | |
| CN205717302U (en) | A kind of air preheater system | |
| CN204901820U (en) | Flood dragon formula waste heat recovery and air preheater | |
| CN208154872U (en) | Hot water fall connect direct combustion dual effect type lithium bromide absorption type heat pump unit | |
| CN103486871B (en) | Melting furnace chimney with waste heat recovery structure | |
| CN206247373U (en) | A kind of pipe heat exchanger residual neat recovering system | |
| CN206582876U (en) | A kind of boiler smoke-gas residual-heat recovering device | |
| CN108444147A (en) | Hot water fall connect direct combustion dual effect type lithium bromide absorption type heat pump unit | |
| CN205402668U (en) | It discharges fume waste heat recovery and utilizes system to use biomass briquette fuel heat carrier heater | |
| CN108679829A (en) | A kind of telescopic wall-mounted stove of built-in internal circulation apparatus | |
| CN205332535U (en) | Injection formula heat pump gas heater | |
| CN201126712Y (en) | Gas heating system for natrium cold rapid reactor container | |
| CN207081204U (en) | A kind of solar water supply boiler | |
| CN102278818B (en) | Condensation heat exchanger of gas water heater | |
| CN202419916U (en) | Internal circulation waste heat recycling device for heat conduction oil furnace | |
| CN207162569U (en) | A kind of smoke discharging device and its system | |
| CN204730233U (en) | A kind of heat-exchanger rig of heating furnace | |
| CN204730641U (en) | A kind of heating furnace | |
| CN204730240U (en) | A kind of heat exchanger tube | |
| CN204404157U (en) | A kind of Superconductor Vacuum heat pipe heat exchanging energy saver | |
| CN202041089U (en) | Vacuum tube heat exchange device applied to exhaust heat recycling of kiln exhaust gas | |
| CN218033111U (en) | Deaerator exhaust gas recovery device | |
| CN219867823U (en) | Sleeve circulating type heating assembly | |
| CN210485661U (en) | Heat recovery device for vertical combustion furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221209 Address after: No. 2902, unit 3, 55 Duhui Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610000 Patentee after: SICHUAN DONGNENG ENERGY TECHNOLOGY Co.,Ltd. Address before: No. 10, nine Xing Avenue, Chengdu high tech Zone, Sichuan Province Patentee before: SICHUAN DONGFANG ENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |