CN102297449B - Maze module type air pre-heater - Google Patents
Maze module type air pre-heater Download PDFInfo
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- CN102297449B CN102297449B CN201110214676.7A CN201110214676A CN102297449B CN 102297449 B CN102297449 B CN 102297449B CN 201110214676 A CN201110214676 A CN 201110214676A CN 102297449 B CN102297449 B CN 102297449B
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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
The invention discloses a maze module type air pre-heater which comprises a shell and a frame. The frame is arranged in the shell, a plurality of heat transfer modules are stacked in the frame, each heat transfer module comprises a base plate, a first heat transfer plate fin, a second heat transfer plate fin, a third heat transfer plate fin and a fourth heat transfer plate fin, the first heat transfer plate fin, the second heat transfer plate fin, the third heat transfer plate fin and the fourth heat transfer plate fin respectively extend outwards along the circumference of the base plate, the first heat transfer plate fin and the third heat transfer plate fin are respectively folded upwards to be perpendicular with the base plate, and the second heat transfer plate fin and the fourth heat transfer plate fin are respectively folded downwards to be perpendicular with the baste plate in 90 DEG; a top base plate and a bottom base plate are provided; the first heat transfer plate fins and the third heat transfer plate fins in the residual heat transfer modules are respectively, correspondingly and fixedly connected with the adjacent stacked second heat transfer plate fins and the fourth heat transfer plate fins through bolt sealing structures; and the bottom base plate and the base plate are provided with fins and runner clapboards. Compared with the prior art, the maze module type air pre-heater of the invention can prolong the smoke airflow or airflow path, prolong the heat transfer time, increase the heat transfer efficiency and also improve the shock strength.
Description
Technical field
The present invention relates to the equipment and technology of petrochemical industry equipment special engineering, particularly relate to a kind of maze modular type air preheater.
Background technology
Air preheater is for the converter of reburner, pyrolysis furnace, heating furnace, steel and iron industry, waste gas catalytic incineration stove, hot-blast stove etc., it is a kind of heat transmission equipment that the high-temperature flue gas of its generation and burning cold air used is carried out to heat exchange, recyclable fume afterheat, reduces energy consumption.High-temperature flue gas is cooling, also reduced the discharge of pernicious gas (as sulfur dioxide, nitrogen oxide etc.) simultaneously, to reach the requirement of environmental protection.
In prior art, the version of air preheater comprises the air preheaters such as tubular type (turbolator), heat pipe-type, light pipe type, fin tube type, strengthening tubular type, swinging, water thermal medium type, board-like, cast type, has respectively separately following different problem: heat pipe preheater easily lost efficacy because infiltrating fixed gas; Light pipe type air preheater is bulky; Enhanced tube regenerative air heater pipe internal resistance is large, and air blast blast is had relatively high expectations; The easy dust stratification of conduction fin tube type air preheater, difficult deashing; Tubular preheater is all easily subject to corrosion failure; Rotary regenerative air preheater exists that power consumption is large, perishable, inleakage is large etc.Therefore, the air preheater of said structure form can not meet the requirement of energy efficiency and environmental protection.
Above-mentioned plate air preheater includes again corrugated plate dst air preheater and flat-plate air air preheater.
It is all welded type preheater that punching press corrugated plating is manufactured that corrugated plate dst air preheater is adopted, and what use at present is all one way forced heat-exchangings, and the thermal efficiency is higher, and floor space is little, can saving steel, and its slip is 3% left and right.The shortcoming existing is: corrugated plating, in corrugating process, makes dull and stereotyped reduced thickness, causes shorten service life, although the ripple of compacting has improved heat exchange efficiency, but also caused gas-flow resistance increase, and dust stratification is serious, has affected the cycle of operation of equipment simultaneously.And the decline of the steel plate heat exchange efficiency after fouling, there is underdeposit corrosion simultaneously, shortened service life.In addition, one way forced heat-exchanging cannot regulate the outlet temperature of flue gas, makes exhaust gas temperature too high, waste heat resource.
Flat-plate air air preheater, a kind of two-pass type of all welded type or the plate air preheater of multiple pass type, it is all welded type preheater that adopts parallel-plate to manufacture and design, can be according to the outlet of flue gas and inlet temperature requirement, heat exchanger is divided into high temperature section and low-temperature zone, high temperature section heat exchange efficiency is up to more than 98%, low-temperature zone is except bearing heat exchange function, the more important thing is and prevent dew point corrosion, according to the difference of sulfur content, cold junction air curtain technology has been used in low-temperature zone design, this air curtain technology is to make air at arrival end, form the air entrapment curtain of 1～1.5mm, to reduce the heat exchange efficiency of entrance heat exchanger plates, improve the plate surface temperature of heat exchanger plates, effectively prevent dew point corrosion.And adopted combined type glass pipe type heat exchanger for the low-temperature zone being applied in high-sulfur flue gas environment, improved the resistance to corrosion of equipment, also solve the etching problem in the energy removal process of high-sulfur flue gas simultaneously, expanded the accommodation of plate air preheater.
And, the heat transfer element of plate air preheater structure is convenient to adopt ND steel, Corten steel, the high-temperature steel of anti-dew point, easily on its surface, carry out preservative treatment (as applied anticorrosive paint, aluminising and enamel), make it have good corrosion resistance, high and low temperature resistance.
Conventionally the good plate air preheater of service property (quality) generally there will not be leakage, and its hermetically-sealed construction can be reduced to air leakage coefficient lower than 1%; And its operation cycle is long, even if there is leak source, also easily finds and solve rapidly.Corrugated design and heating surface that plate air preheater is special are smooth, make its board-like preheating device be difficult for dust stratification, even if dust stratification also easily cleans, can carry out on-line cleaning, and maintainability and reliability are high.Yet this plate air preheater is more owing to consuming steel, structure is not compact, and the many and easy to leak of weld seam, therefore, seldom adopts now.
Cast type air preheater, it is a kind of highly effective air preheater with resistance to flue gas low-temperature corrosion, its structure includes preheater shell, elastic sealing structure and casting fin plate heat exchange element, casting fin plate is comprised of substrate and fin, casting fin plate is bolted connection between any two, and wherein the material of heat exchange element is cast iron; Substrate can adopt plane or undaform; Fin is discrete, and the outline of the shape of its single fin can be rectangle, ligulate, fan-shaped, circular or aciculiform etc.; Cross section can be for completely spindle is streamlined, part spindle is streamlined or flat bow type etc.There is still lower problem of the low and heat exchange efficiency of shock strength in cast type air preheater of the prior art.
Therefore, on the basis of cast type air preheater structure, in conjunction with the shock strength of its existence low and heat exchange efficiency still lower problem improve, in field of engineering technology, there is very far-reaching and great meaning.
Summary of the invention
The object of the invention is to avoid weak point of the prior art and provide a kind of heat exchange efficiency high, and the high maze modular type air preheater of shock strength.
Object of the present invention is achieved through the following technical solutions:
A kind of maze modular type air preheater is provided, has included housing and be arranged at the framework in described housing, wherein,
In described framework, closed assembly is provided with a plurality of heat exchange modules, described heat exchange module includes substrate and distinguishes outward extending the first heat exchanger plates wing, the second heat exchanger plates wing, the 3rd heat exchanger plates wing and the 4th heat exchanger plates wing along the surrounding of described substrate, described the first heat exchanger plates wing and described the 3rd heat exchanger plates wing are 90 ° of upwards foldings with described substrate respectively, and described the second heat exchanger plates wing and described the 4th heat exchanger plates wing are 90 ° of foldings downwards with described substrate respectively;
Be positioned at described frame roof and be fixedly installed head substrate, described head substrate is fixedly connected with the wing ora terminalis of the 3rd heat exchanger plates wing with the wing ora terminalis of the first heat exchanger plates wing in adjacent heat exchange module respectively;
The first heat exchanger plates wing in remaining heat exchange module and the 3rd heat exchanger plates wing are fixedly connected with by bolt sealing structure with the 4th heat exchanger plates wing with the second heat exchanger plates wing in the heat exchange module of corresponding adjacent top closed assembly setting respectively;
Be positioned at described base of frame and be fixedly installed bottom substrate, described bottom substrate is fixedly connected with the wing ora terminalis of the 4th heat exchanger plates wing with the wing ora terminalis of the second heat exchanger plates wing in adjacent heat exchange module respectively;
Described bottom substrate and described substrate are provided with fin and runner dividing plate respectively.
Wherein, described runner dividing plate is set to shunting runner dividing plate.
Wherein,
Described shunting runner dividing plate includes the first split-flow baffles, the second split-flow baffles and the 3rd split-flow baffles that is arranged at described substrate;
Described the first split-flow baffles and parallel being oppositely arranged of described the second split-flow baffles, one side of described the first split-flow baffles is connected with described the first heat exchanger plates wing, one side of described the second split-flow baffles is connected with described the 3rd heat exchanger plates wing, between another side of relative described the first split-flow baffles and another side of described the second split-flow baffles, forms runner mouth;
Described the 3rd split-flow baffles and the be staggered setting parallel with described the second split-flow baffles of described the first split-flow baffles, between one side of described the 3rd split-flow baffles and described the first heat exchanger plates wing, form shunting road junction, between another side of described the 3rd split-flow baffles and described the 3rd heat exchanger plates wing, form shunting road junction.
Wherein, described the 3rd split-flow baffles is arranged at center position relative between another side of described the first split-flow baffles and another side of described the second split-flow baffles.
Wherein, described runner dividing plate is set to deflector type runner dividing plate.
Wherein,
Described deflector type runner dividing plate includes parallel being staggered and is arranged at the first baffling dividing plate and the second baffling dividing plate of described substrate;
One side of described the first baffling dividing plate is connected with described the first heat exchanger plates wing, between another side of described the first baffling dividing plate and described the 3rd heat exchanger plates wing, forms runner mouth;
One side of described the second baffling dividing plate is connected with described the 3rd heat exchanger plates wing, between another side of described the second baffling dividing plate and described the first heat exchanger plates wing, forms runner mouth.
Wherein, the heat exchange module of described bottom substrate and described base of frame is made by steel plate respectively, and remaining heat exchange module is made of cast iron respectively.
Wherein, described fin is that the fin of ailhead shape is, the fin of one or several combinations of the fin of sheet, columned fin and quadrangular shape.
Wherein, between four of the below of described bottom substrate and described bottom substrate angles and described framework, be provided with respectively elastic rubber fitting.
Wherein, between four of described head substrate angles and described framework, be provided with respectively high strength and hang tight spring.
Beneficial effect of the present invention:
Maze modular type air preheater of the present invention, include housing and be arranged at the framework in housing, wherein, in framework, closed assembly is provided with a plurality of heat exchange modules, heat exchange module includes substrate and distinguishes outward extending the first heat exchanger plates wing, the second heat exchanger plates wing, the 3rd heat exchanger plates wing and the 4th heat exchanger plates wing along the surrounding of substrate, the first heat exchanger plates wing and the 3rd heat exchanger plates wing are 90 ° of upwards foldings with substrate respectively, and the second heat exchanger plates wing and the 4th heat exchanger plates wing are 90 ° of foldings downwards with substrate respectively; Be positioned at frame roof and be fixedly installed head substrate, head substrate is fixedly connected with the wing ora terminalis of the 3rd heat exchanger plates wing with the wing ora terminalis of the first heat exchanger plates wing in adjacent heat exchange module respectively; The first heat exchanger plates wing in remaining heat exchange module and the 3rd heat exchanger plates wing are fixedly connected with by bolt sealing structure with the 4th heat exchanger plates wing with the second heat exchanger plates wing in the heat exchange module of corresponding adjacent top closed assembly setting respectively; Be positioned at base of frame and be fixedly installed bottom substrate, bottom substrate is fixedly connected with the wing ora terminalis of the 4th heat exchanger plates wing with the wing ora terminalis of the second heat exchanger plates wing in adjacent heat exchange module respectively; Bottom substrate and substrate are provided with fin and runner dividing plate respectively.
Compared with prior art, maze modular type air preheater of the present invention, has solved the problem that shock strength is low and heat exchange efficiency is low of the casting thin-wall bilateral plate-fin air preheater of larger plane.A plurality of heat exchange module closed assemblies are set together and form mutually perpendicular two S shape heat exchange processes, flue gas flow flows along S shape distance from top to bottom, air flow process flows along S shape distance from bottom to top, air stream repeatedly intersects vertically with smoke gas flow, make smoke gas flow and air stream form reverse flow, thereby make maze modular type air preheater of the present invention there is good heat transfer efficiency; The effect of runner dividing plate is set, to make the cross sectional shape of the flow process passage in each heat exchange module by single rectangle, form the rectangle that width changes by runner dividing plate, form a similar mazy structure, thereby make flow process passage can extend air flow path, increase heat-exchange time, make flow channel space improve fluidised form, the heat transfer of strengthening air and high-temperature flue gas, thereby significantly improved heat exchange efficiency, can fully reduce flue-gas temperature, the consumption of fuel saving; Head substrate and bottom substrate are set up in top and bottom at framework, are conducive to improve the shock strength of whole maze modular type air preheater.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but embodiment in accompanying drawing does not form any limitation of the invention, for those of ordinary skill in the art, is not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the part-structure schematic diagram of maze modular type air preheater of the present invention.
Fig. 2 is the structural representation of heat exchange module of the embodiment 1 of maze modular type air preheater of the present invention.
Fig. 3 is the structural representation of heat exchange module of the embodiment 2 of maze modular type air preheater of the present invention.
In Fig. 1, Fig. 2 and Fig. 3, include:
1---framework,
2---head substrate,
3,301,302,303---heat exchange module,
31---the first heat exchanger plates wing, 32---second heat exchanger plates wing, 33---the 3rd heat exchanger plates wing,
34---the 4th heat exchanger plates wing, 35---substrate,
4---bottom substrate,
5---fin,
6---the first split-flow baffles,
7---the second split-flow baffles,
8---the 3rd split-flow baffles,
9---the first baffling dividing plate,
10---the second baffling dividing plate,
A---air flow process, B---flue gas flow.
The specific embodiment
The invention will be further described with the following Examples.
embodiment 1
One of specific embodiment of maze modular type air preheater of the present invention, as depicted in figs. 1 and 2, include housing and be located at the framework 1 in housing, wherein, in framework 1, closed assembly is provided with a plurality of heat exchange modules 3, heat exchange module 3 includes substrate 35 and distinguishes outward extending the first heat exchanger plates wing 31 along the surrounding of substrate 35, the second heat exchanger plates wing 32, the 3rd heat exchanger plates wing 33 and the 4th heat exchanger plates wing 34, the first heat exchanger plates wing 31 and the 3rd heat exchanger plates wing 33 are 90 ° upwards turning up with substrate 35 respectively, the second heat exchanger plates wing 32 and the 4th heat exchanger plates wing 34 are 90 ° turning up downwards with substrate 35 respectively, be positioned at framework 1 top and be fixedly installed head substrate 2, head substrate 2 is fixedly connected with the wing ora terminalis of the 3rd heat exchanger plates wing 33 with the wing ora terminalis of the first heat exchanger plates wing 31 in adjacent heat exchange module 3 respectively, the first heat exchanger plates wing 31 in remaining heat exchange module 3 is fixedly connected with by bolt sealing structure with the 4th heat exchanger plates wing 34 with the second heat exchanger plates wing 32 in the heat exchange module 3 closed assembly setting of adjacent top with the 3rd heat exchanger plates wing 33 is corresponding respectively, be positioned at framework 1 bottom and be fixedly installed bottom substrate 4, bottom substrate is fixedly connected with the wing ora terminalis of the 4th heat exchanger plates wing 34 with the wing ora terminalis of the second heat exchanger plates wing 32 in adjacent heat exchange module 3 respectively, bottom substrate 4 and substrate 35 are provided with fin 5 and runner dividing plate.Compared with prior art, maze modular type air preheater of the present invention, has solved the problem that shock strength is low and heat exchange efficiency is low of the casting thin-wall bilateral plate-fin air preheater of larger plane.A plurality of heat exchange module 3 closed assemblies are set together and form mutually perpendicular two S shape heat exchange processes, flue gas flow B flows along S shape distance from top to bottom, air flow process A flows along S shape distance from bottom to top, air stream repeatedly intersects vertically with smoke gas flow, make flue gas flow B and air flow process A form reverse flow, thereby make to have good heat transfer efficiency; The effect of runner dividing plate is set, to make the cross sectional shape of the flow process passage in each heat exchange module 3 by single rectangle, form the rectangle that width changes by runner dividing plate, form a similar mazy structure, thereby make flow process passage can extend air flow path, increase heat-exchange time, make flow channel space improve fluidised form, the heat transfer of strengthening air and high-temperature flue gas, thereby significantly improved heat exchange efficiency, can fully reduce flue-gas temperature, the consumption of fuel saving; Head substrate 2 and bottom substrate 4 are set up in top and bottom at framework 1, are conducive to improve the shock strength of whole maze modular type air preheater.
Separately, shell can adopt the material with heat insulation function to make, or sets up heat-insulation layer in the outside of shell.
Concrete, runner dividing plate is shunting runner dividing plate.Shunting runner dividing plate role is that smoke gas flow or air stream are shunted into two kinds or two or more paths, thereby extends the path of air stream or smoke gas flow.
Concrete, shunting runner dividing plate includes the first split-flow baffles 6, the second split-flow baffles 7 and the 3rd split-flow baffles 8 that is arranged at substrate 35, the first split-flow baffles 6 is with second split-flow baffles 7 is parallel is oppositely arranged, one side of the first split-flow baffles 6 is connected with the first heat exchanger plates wing 31, one side of the second split-flow baffles 7 is connected with the 3rd heat exchanger plates wing 33, between another side of the first relative split-flow baffles 6 and another side of the second split-flow baffles 7, forms runner mouth; The 3rd split-flow baffles 8 and the be staggered setting parallel with the second split-flow baffles 7 of the first split-flow baffles 6, between one side of the 3rd split-flow baffles 8 and the first heat exchanger plates wing 31, form shunting road junction, between another side of the 3rd split-flow baffles 8 and the 3rd heat exchanger plates wing 33, form shunting road junction.Preferably, the 3rd split-flow baffles 8 can be arranged at the rear of the first split-flow baffles 6 and the second split-flow baffles 7.All settings vertical with substrate 35 of the first split-flow baffles 6, the second split-flow baffles 7 and the 3rd split-flow baffles 8 of shunting runner dividing plate.The distance forming between the first split-flow baffles 6 and the second split-flow baffles 7 is narrower, the shunting after narrower flow process passage is conducive to smoke gas flow or air stream and passes.
Concrete, the heat exchange module 3 of bottom substrate 4 and framework 1 bottom is made by steel plate, and remaining heat exchange module 3 is all made of cast iron.The heat exchange module 3 of bottom substrate 4 and framework 1 bottom adopts the enough steel plates of intensity to make, and further improves its seismic crack performance.
Concrete, fin 5 is that the fin 5 of ailhead shape is, one or several in the fin 5 of the fin 5 of sheet, columned fin 5 and quadrangular shape.The fin 5 of the fin 5 preferred ailhead shapes that bottom substrate 4 arranges, the fin 5 size height specifications of the ailhead shape arranging are consistent, arrange in length and breadth in good orderly, and the fin 5 of employing ailhead shape can significantly increase the heat exchange area of heat exchange module 3, upset stable laminar airflow, thereby improve heat transfer effect.Upper surface or lower surface that fin 5 can be arranged at substrate 35 can also be that upper surface and lower surface all arrange.
Concrete, between four angles of the below of bottom substrate 4 and bottom substrate 4 and framework 1, be provided with elastic rubber fitting.The setting of elastic rubber fitting is convenient to maze modular type air preheater and in the process of transportation and handling, is played the shockproof effect of buffering.
Concrete, between four angles of head substrate 2 and framework 1, be provided with high strength and hang tight spring.The setting that high strength hangs tight spring is convenient to maze modular type air preheater and in the process of transportation and handling, is played the shockproof effect of buffering.
The present invention can be used in the smoke pre-heating recovery system of all kinds of devices of the newly-built or transformation of oil plant, the structural principle that it is new and manufacturing technology can overcome the leakage shortcoming of legacy equipment comprehensively, effectively extend the life cycle of single devices, reduce inspection and maintenance expense, to play good effect for all kinds of unit furnaces are partly energy-saving and cost-reducing, will also produce significant economic benefit.
The concrete manufacturing technology steps of maze modular type air preheater of the present invention is as follows:
First, blanking compacting monolithic bottom substrate 4, and weld ailhead on bottom substrate 4.
Second, manufacture first heat exchange module 3 in bottom, height according to design pressure and temperature is determined steel plate thickness, blanking compacting monolithic substrate 35, and the first heat exchanger plates wing 31 of substrate 35 and the 3rd heat exchanger plates wing 33 are upwards to 90 ° of flange, the second heat exchanger plates wing 32 and the 4th heat exchanger plates wing 34 are 90 ° of flange downwards, and boring, tapping on the first heat exchanger plates wing 31 of substrate 35 and the flange of the 3rd heat exchanger plates wing 33, check and revise each fit dimension simultaneously.
The 3rd, weld the ailhead in first heat exchange module 3, during welding fin 5, should be noted that parameters such as controlling weldingvoltage, electric current is in the scope of procedure qualification, do not make fusion penetration too large in order to avoid burn steel plate.
The 4th, casting other heat exchange module 3 except the heat exchange module 3 of first of bottom, equally boring, tapping on the heat exchanger plates wing that needs closed assembly to install.
The 5th, between the ailhead of substrate 35 or bottom substrate 4, runner dividing plate is installed.
The 6th, the framework 1 of assembly welding main body, installs bottom substrate 4, and below bottom substrate 4 and between four angles and framework 1, elastic rubber fitting is installed.
The 7th, each heat exchange module 3 progressively closed assembly enter on the bottom substrate 4 of framework 1, stack from top to bottom, and be connected with framework 1, head substrate 2 is finally installed.
The 8th, at annexes such as the top of head substrate 2 installation procedure import and export, after having assembled, in the special frock arranging, carry out air seal test, the air-flow voltage drop detection of apparatus body and sealing surface.
The 9th, housing is formed to closure by bolted to framework 1, make a maze modular type air preheater.
Two of the specific embodiment of maze modular type air preheater of the present invention, the main technical schemes of the present embodiment is identical with embodiment 1, and unaccounted feature, adopts the explanation in embodiment 1 in the present embodiment, at this, no longer repeats.The difference of the present embodiment and embodiment 1 is, the 3rd split-flow baffles 8 is arranged at center position relative between another side of the first split-flow baffles 6 and another side of the second split-flow baffles 7.Make shunting evenly.
Three of the specific embodiment of maze modular type air preheater of the present invention, the main technical schemes of the present embodiment is identical with embodiment 1, unaccounted feature in the present embodiment, adopt the explanation in embodiment 1, at this, no longer repeat, the difference of the present embodiment and embodiment 1 is, runner dividing plate is deflector type runner dividing plate.Deflector type runner dividing plate role be by smoke gas flow or air stream move towards to change path, thereby extend the path of air stream or smoke gas flow.
Concrete, deflector type runner dividing plate includes parallel being staggered and is arranged at the first baffling dividing plate 9 and the second baffling dividing plate 10 of substrate 35, one side of the first baffling dividing plate 9 is connected with the first heat exchanger plates wing 31, between another side of the first baffling dividing plate and the 3rd heat exchanger plates wing, forms runner mouth; One side of the second baffling dividing plate 10 is connected with the 3rd heat exchanger plates wing 33, between another side of the second baffling dividing plate and described the first heat exchanger plates wing, forms runner mouth.This deflector type runner dividing plate being crisscross arranged, is convenient to the change in the path of smoke gas flow or air stream.Preferably, the second baffling dividing plate 10 is arranged at the rear of the first baffling dividing plate 9.
embodiment 4
Four of the specific embodiment of maze modular type air preheater of the present invention, as shown in Figure 3, the main technical schemes of the present embodiment is identical with embodiment 2, unaccounted feature in the present embodiment, adopt the explanation in embodiment 2, at this, no longer repeat, and the parts identical with Fig. 1 and Fig. 2 adopt identical label in Fig. 3.The difference of the present embodiment and embodiment 2 is, runner dividing plate is deflector type runner dividing plate.Deflector type runner dividing plate role be by smoke gas flow or air stream move towards to change path, thereby extend the path of air stream or smoke gas flow.
Concrete, deflector type runner dividing plate includes parallel being staggered and is arranged at the first baffling dividing plate 9 and the second baffling dividing plate 10 of substrate 35, one side of the first baffling dividing plate 9 is connected with the first heat exchanger plates wing 31, between another side of the first baffling dividing plate and the 3rd heat exchanger plates wing, forms runner mouth; One side of the second baffling dividing plate 10 is connected with the 3rd heat exchanger plates wing 33, between another side of the second baffling dividing plate and described the first heat exchanger plates wing, forms runner mouth.This deflector type runner dividing plate being crisscross arranged, is convenient to the change in the path of smoke gas flow or air stream.Preferably, the second baffling dividing plate 10 is arranged at the rear of the first baffling dividing plate 9.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (7)
1. a maze modular type air preheater, includes housing and is arranged at the framework in described housing, it is characterized in that:
In described framework, closed assembly is provided with a plurality of heat exchange modules, described heat exchange module includes substrate and distinguishes outward extending the first heat exchanger plates wing, the second heat exchanger plates wing, the 3rd heat exchanger plates wing and the 4th heat exchanger plates wing along the surrounding of described substrate, described the first heat exchanger plates wing and described the 3rd heat exchanger plates wing are 90 ° of upwards foldings with described substrate respectively, and described the second heat exchanger plates wing and described the 4th heat exchanger plates wing are 90 ° of foldings downwards with described substrate respectively;
Be positioned at described frame roof and be fixedly installed head substrate, described head substrate is fixedly connected with the wing ora terminalis of the 3rd heat exchanger plates wing with the wing ora terminalis of the first heat exchanger plates wing in adjacent heat exchange module respectively;
The first heat exchanger plates wing in remaining heat exchange module and the 3rd heat exchanger plates wing are fixedly connected with by bolt sealing structure with the 4th heat exchanger plates wing with the second heat exchanger plates wing in the heat exchange module of corresponding adjacent top closed assembly setting respectively;
Be positioned at described base of frame and be fixedly installed bottom substrate, described bottom substrate is fixedly connected with the wing ora terminalis of the 4th heat exchanger plates wing with the wing ora terminalis of the second heat exchanger plates wing in adjacent heat exchange module respectively;
Described bottom substrate and described substrate are provided with fin and shunting runner dividing plate respectively;
Described shunting runner dividing plate includes the first split-flow baffles, the second split-flow baffles and the 3rd split-flow baffles that is arranged at described substrate;
Described the first split-flow baffles and parallel being oppositely arranged of described the second split-flow baffles, one side of described the first split-flow baffles is connected with described the first heat exchanger plates wing, one side of described the second split-flow baffles is connected with described the 3rd heat exchanger plates wing, between another side of relative described the first split-flow baffles and another side of described the second split-flow baffles, forms runner mouth;
Described the 3rd split-flow baffles and the be staggered setting parallel with described the second split-flow baffles of described the first split-flow baffles, between one side of described the 3rd split-flow baffles and described the first heat exchanger plates wing, form shunting road junction, between another side of described the 3rd split-flow baffles and described the 3rd heat exchanger plates wing, form shunting road junction.
2. maze modular type air preheater according to claim 1, is characterized in that: described the 3rd split-flow baffles is arranged at center position relative between another side of described the first split-flow baffles and another side of described the second split-flow baffles.
3. a maze modular type air preheater, includes housing and is arranged at the framework in described housing, it is characterized in that:
In described framework, closed assembly is provided with a plurality of heat exchange modules, described heat exchange module includes substrate and distinguishes outward extending the first heat exchanger plates wing, the second heat exchanger plates wing, the 3rd heat exchanger plates wing and the 4th heat exchanger plates wing along the surrounding of described substrate, described the first heat exchanger plates wing and described the 3rd heat exchanger plates wing are 90 ° of upwards foldings with described substrate respectively, and described the second heat exchanger plates wing and described the 4th heat exchanger plates wing are 90 ° of foldings downwards with described substrate respectively;
Be positioned at described frame roof and be fixedly installed head substrate, described head substrate is fixedly connected with the wing ora terminalis of the 3rd heat exchanger plates wing with the wing ora terminalis of the first heat exchanger plates wing in adjacent heat exchange module respectively;
The first heat exchanger plates wing in remaining heat exchange module and the 3rd heat exchanger plates wing are fixedly connected with by bolt sealing structure with the 4th heat exchanger plates wing with the second heat exchanger plates wing in the heat exchange module of corresponding adjacent top closed assembly setting respectively;
Be positioned at described base of frame and be fixedly installed bottom substrate, described bottom substrate is fixedly connected with the wing ora terminalis of the 4th heat exchanger plates wing with the wing ora terminalis of the second heat exchanger plates wing in adjacent heat exchange module respectively;
Described bottom substrate and described substrate are provided with fin and deflector type runner dividing plate respectively;
Described deflector type runner dividing plate includes parallel being staggered and is arranged at the first baffling dividing plate and the second baffling dividing plate of described substrate;
One side of described the first baffling dividing plate is connected with described the first heat exchanger plates wing, between another side of described the first baffling dividing plate and described the 3rd heat exchanger plates wing, forms runner mouth;
One side of described the second baffling dividing plate is connected with described the 3rd heat exchanger plates wing, between another side of described the second baffling dividing plate and described the first heat exchanger plates wing, forms runner mouth.
4. according to the maze modular type air preheater described in claim 1 or 3, it is characterized in that: the heat exchange module of described bottom substrate and described base of frame is made by steel plate respectively, remaining heat exchange module is made of cast iron respectively.
5. according to the maze modular type air preheater described in claim 1 or 3, it is characterized in that: described fin is that the fin of ailhead shape is, the fin of one or several combinations of the fin of sheet, columned fin and quadrangular shape.
6. according to the maze modular type air preheater described in claim 1 or 3, it is characterized in that: between four angles of the below of described bottom substrate and described bottom substrate and described framework, be provided with respectively elastic rubber fitting.
7. according to the maze modular type air preheater described in claim 1 or 3, it is characterized in that: between four angles of described head substrate and described framework, be provided with respectively high strength and hang tight spring.
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| CN201110214676.7A CN102297449B (en) | 2011-07-29 | 2011-07-29 | Maze module type air pre-heater |
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| CN201110214676.7A CN102297449B (en) | 2011-07-29 | 2011-07-29 | Maze module type air pre-heater |
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| CN102297449A CN102297449A (en) | 2011-12-28 |
| CN102297449B true CN102297449B (en) | 2014-04-16 |
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| CN2515571Y (en) * | 2001-10-15 | 2002-10-09 | 张志宏 | Low noise window type air conditioner |
| CN1517533A (en) * | 2003-01-21 | 2004-08-04 | 通用电气公司 | Method and device of heat exchanging |
| US6904747B2 (en) * | 2002-08-30 | 2005-06-14 | General Electric Company | Heat exchanger for power generation equipment |
| CN201203140Y (en) * | 2008-05-16 | 2009-03-04 | 洛阳森德石化工程有限公司 | Plate shell type air pre-heating device |
| CN102003717A (en) * | 2009-09-01 | 2011-04-06 | 中国石化集团洛阳石油化工工程公司 | Plate air preheater |
| CN202195501U (en) * | 2011-07-29 | 2012-04-18 | 茂名重力石化机械制造有限公司 | Maze modular type air preheater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2515571Y (en) * | 2001-10-15 | 2002-10-09 | 张志宏 | Low noise window type air conditioner |
| US6904747B2 (en) * | 2002-08-30 | 2005-06-14 | General Electric Company | Heat exchanger for power generation equipment |
| CN1517533A (en) * | 2003-01-21 | 2004-08-04 | 通用电气公司 | Method and device of heat exchanging |
| CN201203140Y (en) * | 2008-05-16 | 2009-03-04 | 洛阳森德石化工程有限公司 | Plate shell type air pre-heating device |
| CN102003717A (en) * | 2009-09-01 | 2011-04-06 | 中国石化集团洛阳石油化工工程公司 | Plate air preheater |
| CN202195501U (en) * | 2011-07-29 | 2012-04-18 | 茂名重力石化机械制造有限公司 | Maze modular type air preheater |
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| CN102297449A (en) | 2011-12-28 |
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Address after: 525024 Guangdong City, Maoming Province Ring West Road, No. 91 Patentee after: Maoming gravity Petrochemical Equipment Co Ltd Address before: 525024 Maoming City, Guangdong Province West Road, Maoming City, the gravity of the Petrochemical Machinery Manufacturing Co., Ltd., Patentee before: The Challenge Petrochemical Machinery Corporation |