CN205746957U - The anti-AH blocking of hot secondary wind supercharging adverse current and heat-transfer surface etching system - Google Patents
The anti-AH blocking of hot secondary wind supercharging adverse current and heat-transfer surface etching system Download PDFInfo
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- CN205746957U CN205746957U CN201620404030.3U CN201620404030U CN205746957U CN 205746957 U CN205746957 U CN 205746957U CN 201620404030 U CN201620404030 U CN 201620404030U CN 205746957 U CN205746957 U CN 205746957U
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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
- 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
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Abstract
This utility model relates to the anti-AH blocking of a kind of hot secondary wind supercharging adverse current and heat-transfer surface etching system.The problem being also difficult to efficiently solve air preheater heated surface corrosion and blocking at present.This utility model includes trisector air heater and heat exchanger fin, it is characterized in: also include hot secondary wind introduction pipe, hot blast connecting pipe, hot blast introduces cold side conduits and hot blast introduces hot secondary air box pipeline, trisector air heater is provided with the fanning strip including number fanning strip of cold end and number fanning strip in hot junction, an independent adverse current heating cabinet is formed between number fanning strip of cold end and hot junction one fanning strip, countercurrently heating cabinet divides between storehouse in secondary air separating storehouse and flue gas, number fanning strip of cold end is provided with cold end voltage stabilizing chamber, hot junction one fanning strip is provided with hot junction pressure balance chamber.This utility model can solve air preheater cold end sulphuric acid during coal-fired plant boiler runs and condense, generates NH4HSO4Cause the corrosion of air preheater heat-transfer surface and the problem of blocking.
Description
Technical field
This utility model relates to the anti-AH blocking of a kind of hot secondary wind supercharging adverse current and heat-transfer surface etching system, belongs to coal-fired power station boiler air preheater burn into Anti-clogging technical field.
Background technology
Coal-burning power plant can generate SO when using the ature of coal containing certain sulfur3, the SO that generated3Amount affected from several ppm to tens ppm the highest by factors such as coal sulfur height.By environmental protection standard control, coal-burning power plant installs SCR system the most entirely, for the NO producing burningxCarry out removing to meet environmental protection standard to NOxThe requirement of concentration of emission.SCR system removing NOxProcess need according to boiler generate NOxAmount sprays into substantial amounts of NH3, limited by field condition, part NH3Fail to participate in reaction completely thus cause certain density the escaping of ammonia, additionally, the catalyst in SCR system is to SO in flue gas2It is oxidized to SO3There is certain catalytic action, cause SO in SCR reactor2It is oxidized to SO3Amount can change in the range of 0.3～2%.
High-temperature flue gas enters downstream air preheater after reaction in SCR system and carries out heat exchange (general air preheater entrance flue gas temperature is 350～400 DEG C), heating boiler one secondary wind.After the heat exchange of the whole flow process of air preheater, air preheater cold side outlet flue gas mean temperature is typically reduced to 130～160 DEG C, the SO in period flue gas3Condense, thus exchange hot side and cause corrosion, meanwhile, the SO condensed in flue gas3And NH3Reaction generates NH4HSO4, NH4HSO4Having the strongest viscosity, easily stick to air preheater heat exchanger fin surface, meanwhile, stronger viscosity the most easily adheres to the flying dust in flue gas, thus causes air preheater inlet outlet pressure differential to be gradually increased, blocks and gradually increase the weight of, and finally affects unit output.For air preheater blockage problem; power plant generally uses steam soot blowing or the modes such as steam air heater that come into operation to alleviate; on the one hand this affect unit economy increases coal consumption; on the other hand blockage problem cannot at all being solved; then need shutdown water under high pressure to be rinsed when blocking serious, have impact on unit load rate.
Existing technology is difficult to solve the problems referred to above, if publication date is on October 22nd, 1997, in the Chinese patent of Publication No. CN2265482, disclose a kind of blocking-resistance device for boiler air preheating, this blocking-resistance device for boiler air preheating is installed in air preheater, it is additionally arranged floating net frame for gear on air preheater top, by hanger spring, floating net frame for gear hung on air preheater top, ash disposal spring it is mounted with in air preheater smoke pipe, ash disposal lower spring end has lifted weight, flue gas perturbation action is utilized to make floating net frame for gear, ash disposal spring produces sink-float vibration, in sticking to fume pipe, flyash constantly strikes off, to reach the anti-blocking purpose of air preheater, but NH4HSO4Having the strongest viscosity, scraping effect is undesirable, and blocking-proof result is poor.
Based on above reason, for efficiently solving above-mentioned air preheater heated surface corrosion and the problem of blocking, new preventing and treating air preheater anticorrosion and the process system of blocking need to be developed.
Utility model content
This utility model is to effectively solve air preheater cold end sulphuric acid condensation during coal-fired plant boiler runs, generating NH4HSO4Cause the corrosion of air preheater heat-transfer surface and the problem of blocking, and then the anti-AH blocking of a kind of hot secondary wind supercharging adverse current and heat-transfer surface etching system are provided.
nullThe technical scheme in the invention for solving the above technical problem is: this hot secondary wind supercharging adverse current anti-AH blocking includes trisector air heater with heat-transfer surface etching system、Heat exchanger fin、Cold First air pipeline、Cold secondary wind pipeline、Heat primary air pipeline and hot secondary wind pipeline，Described heat exchanger fin is positioned at trisector air heater，Described trisector air heater is provided with flue gas point storehouse、Wind separating bin and secondary air separating storehouse，The cold end of described cold First air pipeline and a wind separating bin connects，The hot junction of described heat primary air pipeline and a wind separating bin connects，Described cold secondary wind pipeline is connected with the cold end in secondary air separating storehouse，Described hot secondary wind pipeline is connected with the hot junction in secondary air separating storehouse，Described flue gas divides storehouse for connecting with flue，Its construction features is: also include hot secondary wind introduction pipe、Hot secondary wind draws flow electric control valve、Hot blast connecting pipe、Hot secondary wind booster fan、Hot blast introduces cold side conduits and hot blast introduces hot secondary air box pipeline，Described trisector air heater is provided with a fanning strip，A described fanning strip includes being positioned at number fanning strip of cold end of the cold end of trisector air heater and being positioned at hot junction one fanning strip in trisector air heater hot junction，An independent adverse current heating cabinet is formed between number fanning strip of described cold end and hot junction one fanning strip，Number fanning strip of described cold end is provided with cold end voltage stabilizing chamber，Described cold end voltage stabilizing chamber is provided with a several hot air spout towards the one side of heat exchanger fin，Described hot junction one fanning strip is provided with hot junction pressure balance chamber，Described hot junction pressure balance chamber is provided with several No. two hot air spouts towards the one side of heat exchanger fin，Described hot blast introduces one end and the connection of cold end voltage stabilizing chamber of cold side conduits，One end of described hot secondary wind introduction pipe and hot secondary wind pipeline connect，The other end of this hot secondary wind introduction pipe and hot secondary wind are drawn flow electric control valve and are connected，Described hot secondary wind draws flow electric control valve and hot blast connecting pipe connects，Described hot blast connecting pipe and hot secondary wind booster fan connect，Described hot secondary wind booster fan and hot blast introduce cold side conduits and connect，Described hot blast introduces one end and the connection of hot junction pressure balance chamber of hot secondary air box pipeline，This hot blast introduces the other end and the connection of hot secondary wind pipeline of hot secondary air box pipeline.
As preferably, this utility model is when the direction of rotation of trisector air heater is flue gas → First air → secondary wind, and described cold end voltage stabilizing chamber and hot junction pressure balance chamber are respectively positioned between flue gas point storehouse and secondary air separating storehouse.
As preferably, this utility model is when the direction of rotation of trisector air heater is flue gas → secondary wind → First air, and described cold end voltage stabilizing chamber and hot junction pressure balance chamber are respectively positioned between flue gas Fen Cang and a wind separating bin.
As preferably, a hot air spout described in the utility model and No. two hot air spouts are slit shape structure.
As preferably, number fanning strip of cold end described in the utility model and hot junction one fanning strip are overlapping along the axial direction of trisector air heater.
As preferably, a fanning strip described in the utility model is fixed on the central truss of trisector air heater.
As preferably, the width of cold end voltage stabilizing chamber described in the utility model and hot junction pressure balance chamber is respectively less than the width between adjacent two apex seals of trisector air heater.
As preferably, the side of one end and cold end voltage stabilizing chamber that hot blast described in the utility model introduces cold side conduits connects.
As preferably, the side of one end and hot junction pressure balance chamber that hot blast described in the utility model introduces hot secondary air box pipeline connects.
A kind of hot secondary wind supercharging adverse current anti-AH blocking using described system to carry out and heat-transfer surface caustic solution, its feature is: the step of described method is as follows: SCR exiting flue gas enters trisector air heater heat exchange through flue, and the exiting flue gas after heat exchange flows through flue and electric cleaner；Cold First air and cold secondary wind respectively by cold First air pipeline and cold secondary wind pipeline after trisector air heater heats, flowed out by heat primary air pipeline and hot secondary wind pipeline the most respectively, the hot secondary wind of part passes sequentially through hot secondary wind introduction pipe, hot secondary wind draws flow electric control valve, hot blast connecting pipe, hot secondary wind booster fan and hot blast introduce cold side conduits and enter cold end voltage stabilizing chamber, introduce hot secondary air box pipeline through hot junction pressure balance chamber and hot blast after inversely being sprayed into heat exchanger fin by a hot air spout along flue gas again and lead to hot secondary wind pipeline, by the adverse current heating of hot secondary wind, on the one hand the NH that the cold end of high-temperature evaporation generates4HSO4And suppress NH4HSO4Solidification, on the other hand improves trisector air heater cold end integrated temperature, prevents sulfuric acid vapor from condensing, and the most effectively solves air preheater cold end sulphuric acid during coal-fired plant boiler runs and condenses, generates NH4HSO4Solidification causes the corrosion of air preheater heat-transfer surface and the problem of blocking.
This utility model compared with prior art, has the following advantages and effect: efficiently solves air preheater cold end sulphuric acid during current coal-fired plant boiler runs and condenses, suppresses to generate NH4HSO4Solidification causes the corrosion of air preheater heat-transfer surface and the problem of blocking.This utility model is by the adverse current heating of hot secondary wind, the NH that on the one hand the cold end of high-temperature evaporation generates4HSO4And suppress NH4HSO4Generate solidification, on the other hand can improve air preheater cold end integrated temperature, can prevent sulfuric acid vapor from condensing, can effectively solve air preheater cold end sulphuric acid during coal-fired plant boiler runs with this and condense, generate NH4HSO4Solidification causes the corrosion of air preheater heat-transfer surface and the problem of blocking.
Accompanying drawing explanation
Fig. 1 is the anti-AH blocking of hot secondary wind supercharging adverse current and the structural representation of heat-transfer surface etching system in this utility model embodiment.
Fig. 2 is the structural representation of trisector air heater in this utility model embodiment.
Fig. 3 is the structural representation of a cold number fanning strip of end in this utility model embodiment.
Fig. 4 be in Fig. 3 B to structural representation.
Fig. 5 is the sectional structure schematic diagram in D-D face in Fig. 3.
Fig. 6 is the sectional structure schematic diagram in C-C face in Fig. 4.
Fig. 7 is the structural representation of number fanning strip in hot junction in this utility model embodiment.
Fig. 8 be in Fig. 7 E to structural representation.
Fig. 9 is the sectional structure schematic diagram in F-F face in Fig. 7.
Figure 10 is the sectional structure schematic diagram in G-G face in Fig. 8.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following example are that this utility model is not limited to following example to explanation of the present utility model.
Embodiment.
Seeing Fig. 1 to Figure 10, the hot secondary wind supercharging adverse current anti-AH blocking in the present embodiment and heat-transfer surface etching system include that trisector air heater 1, heat exchanger fin 2, cold First air pipeline 7, cold secondary wind pipeline 8, heat primary air pipeline 9, hot secondary wind pipeline 10, hot secondary wind introduction pipe 11, hot secondary wind draw flow electric control valve 12, hot blast connecting pipe 13, hot secondary wind booster fan 14, hot blast introduces cold side conduits 15 and hot blast introduces hot secondary air box pipeline 16.
Heat exchanger fin 2 in the present embodiment is positioned at trisector air heater 1, trisector air heater 1 is provided with flue gas Fen Cang, a wind separating bin and secondary air separating storehouse, cold First air pipeline 7 is connected with the cold end of a wind separating bin, heat primary air pipeline 9 is connected with the hot junction of a wind separating bin, cold secondary wind pipeline 8 is connected with the cold end in secondary air separating storehouse, hot secondary wind pipeline 10 is connected with the hot junction in secondary air separating storehouse, and flue gas point storehouse is for connecting with flue 18.
Trisector air heater 1 in the present embodiment is provided with a fanning strip 3, a number fanning strip 3 includes being positioned at number fanning strip 3-1 of cold end of the cold end of trisector air heater 1 and being positioned at the hot junction one fanning strip 3-2 in trisector air heater 1 hot junction, forms an independent adverse current heating cabinet between number fanning strip 3-1 of cold end and hot junction one fanning strip 3-2.
Number fanning strip 3-1 of cold end in the present embodiment is provided with cold end voltage stabilizing chamber 6, cold end voltage stabilizing chamber 6 is provided with a several hot air spout 20 towards the one side of heat exchanger fin 2, hot junction one fanning strip 3-2 is provided with hot junction pressure balance chamber 5, and hot junction pressure balance chamber 5 is provided with several No. two hot air spouts 21 towards the one side of heat exchanger fin 2.
One end and the cold end voltage stabilizing chamber 6 of the hot blast introducing cold side conduits 15 in the present embodiment connect, one end and the hot secondary wind pipeline 10 of hot secondary wind introduction pipe 11 connect, the other end of this hot secondary wind introduction pipe 11 and hot secondary wind are drawn flow electric control valve 12 and are connected, hot secondary wind draws flow electric control valve 12 and hot blast connecting pipe 13 connects, hot blast connecting pipe 13 and hot secondary wind booster fan 14 connect, hot secondary wind booster fan 14 and hot blast introduce cold side conduits 15 and connect, one end and the hot junction pressure balance chamber 5 of the hot blast hot secondary air box pipeline 16 of introducing connect, the other end and the hot secondary wind pipeline 10 of this hot blast hot secondary air box pipeline 16 of introducing connect.
In the present embodiment when the direction of rotation of trisector air heater 1 is flue gas → First air → secondary wind, cold end voltage stabilizing chamber 6 and hot junction pressure balance chamber 5 are respectively positioned between flue gas point storehouse and secondary air separating storehouse.When the direction of rotation of trisector air heater 1 is flue gas → secondary wind → First air, cold end voltage stabilizing chamber 6 and hot junction pressure balance chamber 5 are respectively positioned between flue gas Fen Cang and a wind separating bin.
A hot air spout 20 and No. two hot air spouts 21 in the present embodiment are slit shape structure.Number fanning strip 3-1 of cold end and hot junction one fanning strip 3-2 is overlapping on the axial direction along trisector air heater 1.A number fanning strip 3 is fixed on the central truss 28 of trisector air heater 1.The width of cold end voltage stabilizing chamber 6 and hot junction pressure balance chamber 5 is respectively less than the width between adjacent two apex seals of trisector air heater 1.The side of one end and cold end voltage stabilizing chamber 6 that hot blast introduces cold side conduits 15 connects.The side of one end and hot junction pressure balance chamber 5 that hot blast introduces hot secondary air box pipeline 16 connects.
Hot secondary wind supercharging adverse current anti-AH blocking in the present embodiment is as follows with the step of heat-transfer surface caustic solution: SCR exiting flue gas enters trisector air heater 1 heat exchange through flue 18, and the exiting flue gas after heat exchange flows through flue 18 and electric cleaner 19；Cold First air and cold secondary wind respectively by cold First air pipeline 7 and cold secondary wind pipeline 8 after trisector air heater 1 heats, flowed out by heat primary air pipeline 9 and hot secondary wind pipeline 10 the most respectively, the hot secondary wind of part passes sequentially through hot secondary wind introduction pipe 11, hot secondary wind draws flow electric control valve 12, hot blast connecting pipe 13, hot secondary wind booster fan 14 and hot blast introduce cold side conduits 15 and enter cold end voltage stabilizing chamber 6, introduce hot secondary air box pipeline 16 through hot junction pressure balance chamber 5 and hot blast after inversely being sprayed into heat exchanger fin 2 by a hot air spout 20 along flue gas again and lead to hot secondary wind pipeline 10, by the adverse current heating of hot secondary wind, on the one hand the NH that the cold end of high-temperature evaporation generates4HSO4And suppress NH4HSO4Solidification, on the other hand improves trisector air heater 1 cold end integrated temperature, prevents sulfuric acid vapor from condensing, and the most effectively solves air preheater cold end sulphuric acid during coal-fired plant boiler runs and condenses, generates NH4HSO4Solidification causes the corrosion of air preheater heat-transfer surface and the problem of blocking.
Trisector air heater 1 usually three points of storehouse syntype structure rotary regenerative air preheaters of typical case in the present embodiment, being also provided with No. two fanning strips 4 on trisector air heater 1, No. two fanning strips 4 include No. two fanning strip 4-1 of cold end and hot junction two fanning strip 4-2.
When the rotational order of trisector air heater 1 is flue gas → First air → secondary wind, cold end voltage stabilizing chamber 6 is isolated near secondary wind side at number fanning strip 3-1 of cold end, on the plane steel plate of heat exchanger fin 2, output a hot air spout 20 of slit shape at cold end voltage stabilizing chamber 6, number fanning strip 3-1 side plane of cold end is outputed circular heat secondary wind entrance and is connected with hot secondary wind introducing cold side conduits 15；Hot junction pressure balance chamber 5 is isolated near secondary wind side at hot junction one fanning strip 3-2, on the plane steel plate of heat exchanger fin 2, output No. two hot air spouts 21 of slit shape at hot junction pressure balance chamber 5, the side plane steel plate of number fanning strip 3-2 in hot junction is outputed the outlet of circular heat secondary wind and is connected with the hot blast hot secondary air box pipeline 16 of introducing.The width of cold end voltage stabilizing chamber 6 and hot junction pressure balance chamber 5 is respectively less than the width between adjacent two apex seals of air preheater.
When the rotational order of trisector air heater 1 is flue gas → secondary wind → First air, only need to cold end voltage stabilizing chamber 6, hot junction pressure balance chamber 20, No. two hot air spouts 21 of 5, hot air spout be arranged in the fanning strip of a number fanning strip 3-2 radial symmetric of number fanning strip 3-1 of cold end and hot junction, its cold end voltage stabilizing chamber 6 and hot junction pressure balance chamber 5 also should be near First air sides.
" AH " described in this utility model refers to air preheater, and this is known to those skilled in the art general knowledge.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of its parts and components, be named title etc. can be different, and the above content described in this specification is only to this utility model structure example explanation.All equivalence changes done according to structure, feature and the principle described in this utility model inventional idea or simple change, be all included in the protection domain of this utility model patent.Described specific embodiment can be made various amendment or supplements or use similar mode to substitute by this utility model person of ordinary skill in the field; without departing from structure of the present utility model or surmount scope defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (9)
- null1. a hot secondary wind supercharging adverse current anti-AH blocking and heat-transfer surface etching system，Including trisector air heater (1)、Heat exchanger fin (2)、Cold First air pipeline (7)、Cold secondary wind pipeline (8)、Heat primary air pipeline (9) and hot secondary wind pipeline (10)，Described heat exchanger fin (2) is positioned at trisector air heater (1)，Described trisector air heater (1) is provided with flue gas point storehouse、Wind separating bin and secondary air separating storehouse，Described cold First air pipeline (7) is connected with the cold end of a wind separating bin，Described heat primary air pipeline (9) is connected with the hot junction of a wind separating bin，Described cold secondary wind pipeline (8) is connected with the cold end in secondary air separating storehouse，Described hot secondary wind pipeline (10) is connected with the hot junction in secondary air separating storehouse，Described flue gas divides storehouse for connecting with flue (18)，It is characterized in that: also include hot secondary wind introduction pipe (11)、Hot secondary wind draws flow electric control valve (12)、Hot blast connecting pipe (13)、Hot secondary wind booster fan (14)、Hot blast introduces cold side conduits (15) and hot blast introduces hot secondary air box pipeline (16)，Described trisector air heater (1) is provided with a fanning strip (3)，A described fanning strip (3) includes number fanning strip (3-1) of cold end being positioned at trisector air heater (1) cold end and is positioned at hot junction one fanning strip (3-2) in trisector air heater (1) hot junction，An independent adverse current heating cabinet is formed between number fanning strip (3-1) of described cold end and hot junction one fanning strip (3-2)，Number fanning strip (3-1) of described cold end is provided with cold end voltage stabilizing chamber (6)，Described cold end voltage stabilizing chamber (6) is provided with a several hot air spout (20) towards the one side of heat exchanger fin (2)，Described hot junction one fanning strip (3-2) is provided with hot junction pressure balance chamber (5)，Described hot junction pressure balance chamber (5) is provided with several No. two hot air spouts (21) towards the one side of heat exchanger fin (2)，Described hot blast introduces one end and the connection of cold end voltage stabilizing chamber (6) of cold side conduits (15)，One end of described hot secondary wind introduction pipe (11) and hot secondary wind pipeline (10) connect，The other end of this hot secondary wind introduction pipe (11) and hot secondary wind are drawn flow electric control valve (12) and are connected，Described hot secondary wind draws flow electric control valve (12) and hot blast connecting pipe (13) connects，Described hot blast connecting pipe (13) and hot secondary wind booster fan (14) connect，Described hot secondary wind booster fan (14) and hot blast introduce cold side conduits (15) and connect，Described hot blast introduces one end and hot junction pressure balance chamber (5) connection of hot secondary air box pipeline (16)，This hot blast introduces the other end and hot secondary wind pipeline (10) connection of hot secondary air box pipeline (16).
- The anti-AH blocking of hot secondary wind supercharging the most according to claim 1 adverse current and heat-transfer surface etching system, it is characterized in that: when the direction of rotation of trisector air heater (1) is flue gas → First air → secondary wind, described cold end voltage stabilizing chamber (6) and hot junction pressure balance chamber (5) are respectively positioned between flue gas point storehouse and secondary air separating storehouse.
- The anti-AH blocking of hot secondary wind supercharging the most according to claim 1 adverse current and heat-transfer surface etching system, it is characterized in that: when the direction of rotation of trisector air heater (1) is flue gas → secondary wind → First air, described cold end voltage stabilizing chamber (6) and hot junction pressure balance chamber (5) are respectively positioned between flue gas Fen Cang and a wind separating bin.
- The anti-AH blocking of hot secondary wind supercharging the most according to claim 1 adverse current and heat-transfer surface etching system, it is characterised in that: a described hot air spout (20) and No. two hot air spouts (21) are slit shape structure.
- The anti-AH blocking of hot secondary wind supercharging the most according to claim 1 adverse current and heat-transfer surface etching system, it is characterised in that: number fanning strip (3-1) of described cold end and hot junction one fanning strip (3-2) are overlapping on the axial direction along trisector air heater (1).
- The anti-AH blocking of hot secondary wind supercharging the most according to claim 1 adverse current and heat-transfer surface etching system, it is characterised in that: a described fanning strip (3) is fixed on the central truss (28) of trisector air heater (1).
- The anti-AH blocking of hot secondary wind supercharging the most according to claim 1 adverse current and heat-transfer surface etching system, it is characterised in that: the width of described cold end voltage stabilizing chamber (6) and hot junction pressure balance chamber (5) is respectively less than the width between adjacent two apex seals of trisector air heater (1).
- The anti-AH blocking of hot secondary wind supercharging the most according to claim 1 adverse current and heat-transfer surface etching system, it is characterised in that: the side of one end and cold end voltage stabilizing chamber (6) that described hot blast introduces cold side conduits (15) connects.
- The anti-AH blocking of hot secondary wind supercharging the most according to claim 1 adverse current and heat-transfer surface etching system, it is characterised in that: the side of one end and hot junction pressure balance chamber (5) that described hot blast introduces hot secondary air box pipeline (16) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620404030.3U CN205746957U (en) | 2016-05-06 | 2016-05-06 | The anti-AH blocking of hot secondary wind supercharging adverse current and heat-transfer surface etching system |
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|---|---|---|---|
| CN201620404030.3U CN205746957U (en) | 2016-05-06 | 2016-05-06 | The anti-AH blocking of hot secondary wind supercharging adverse current and heat-transfer surface etching system |
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| CN205746957U true CN205746957U (en) | 2016-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864817A (en) * | 2016-05-06 | 2016-08-17 | 华电电力科学研究院 | System and method for preventing AH blockage and heat exchange surface corrosion by hot secondary air supercharged countercurrent |
-
2016
- 2016-05-06 CN CN201620404030.3U patent/CN205746957U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864817A (en) * | 2016-05-06 | 2016-08-17 | 华电电力科学研究院 | System and method for preventing AH blockage and heat exchange surface corrosion by hot secondary air supercharged countercurrent |
| CN105864817B (en) * | 2016-05-06 | 2018-08-07 | 华电电力科学研究院 | The anti-AH of hot Secondary Air supercharging adverse current is blocked and heat-transfer surface etching system and its method |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20161130 Effective date of abandoning: 20180807 |