CN106323058A - Heat exchange system of MGGH - Google Patents
Heat exchange system of MGGH Download PDFInfo
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- CN106323058A CN106323058A CN201510391002.2A CN201510391002A CN106323058A CN 106323058 A CN106323058 A CN 106323058A CN 201510391002 A CN201510391002 A CN 201510391002A CN 106323058 A CN106323058 A CN 106323058A
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Abstract
The invention discloses a heat exchange system of an MGGH. The system comprises a heating heat-exchanger, desulfurization and dust removal equipment and a cooling heat-exchanger which are arranged sequentially; the heating heat-exchanger and the cooling heat-exchanger are connected by the aid of pipelines to form a closed circulation loop; a medium compensation tank, a circulation pump and a medium heater are arranged on the closed circulation loop; each of the heating heat-exchanger and the cooling heat-exchanger comprises a casing, a convergence box and a plate type heat exchange module; a smoke inlet channel and a smoke discharge channel are arranged at the upper end and the lower end of each casing, and each of the smoke inlet channel and the smoke discharge channel comprises a flange and a guiding barrel; and each plate type heat exchange module comprises multiple heat exchange plates, flue supporting bulges and medium channel supporting bulges are arranged on two sides of the heat exchange plates, heat exchange medium baffle runners are formed among the medium channel supporting bulges of the adjacent heat exchange plates, and discharged smoke once-through channels are formed among the flue supporting bulges of the adjacent heat exchange plates. The heat exchange system can treat smoke in a low energy consumption manner, adopts the simple structure, is low in input cost and running cost, runs reliably, has high heat exchange efficiency and is easy to clean and maintain, and the MGGH is high in strength and long in service life.
Description
Technical field
The present invention relates to power industry exhaust gas treatment plant technical field, particularly relate to a kind of MGGH
Heat-exchange system.
Background technology
In order to adapt to the regulation of GB13553-2011 " fossil-fuel power plant atmospheric pollutant emission standard ", coal-fired
Electricity power enterprise needs to carry out corresponding desulfurization process before smoke evacuation, at present, at flue gas desulfurization both domestic and external
The heat exchanger that reason technology is mainly taked has swinging flue gas heat-exchange unit (RGGH) and intermediate heat media flue gas
2 kinds of heat exchanger (MGGH), wherein, MGGH is energy-conservation with it, performance driving economy and the advantage of reliability,
There is bigger market prospect.
MGGH is the high-temperature heating medium utilizing former cigarette, reduces flue-gas temperature, reduces flue gas flow, carries
High fume treatment performance, re-uses medium heating low temperature neat stress so that it is exhaust temperature raises, it is easy to
Dissipate;The MGGH of prior art is mostly based on tubular type, finned, flue gas and cooling water pipeline table
Face contact realizes heat exchange, and contact area is little, and heat exchange stroke is long, and smoke evacuation pressure drop is big, and heat exchange
The design of tube bank and arrange and cannot make full use of the effective heat exchange area in heat exchange box body, meanwhile,
Owing to flue gas and heat exchanger tube are perpendicular contact, smoke evacuation resistance is big, the lee face of cooling water pipeline and
The easy dust stratification in stagnant area, is difficult to clear up, and causes its heat exchange property to reduce.
Summary of the invention
The technical problem to be solved is, overcomes the deficiencies in the prior art, it is provided that one
Plant compact conformation, smoke evacuation resistance is little, clear up convenient and that heat exchange efficiency is high MGGH heat-exchange system.
A kind of MGGH heat-exchange system of the present invention is to be achieved by the following technical programs, its bag
Include temperature rise heat exchanger, desulfurating dust-removing equipment and the cooling heat exchanger being set in turn on smoke discharge pipe,
The medium import of pipeline connection temperature rise heat exchanger and the media outlet of cooling heat exchanger and pipeline connect
The media outlet of temperature rise heat exchanger and the medium import of cooling heat exchanger, the closing forming heat catalysis follows
Loop back path, closed circulation is provided with medium compensating tank, circulating pump and medium heater;
Wherein, temperature rise heat exchanger and cooling heat exchanger all include:
Housing, its upper and lower end is provided with fume inlet passage and discharge flue, fume inlet passage by suction flange and
Enter cigarette guide cylinder constitute, discharge flue by outlet(discharge) flange and smoke evacuation guide cylinder constitute, enter cigarette guide cylinder and
The inwall of smoke evacuation guide cylinder is provided with leads cigarette gradient;
The header box connected with housing, medium import and media outlet are respectively arranged on its two ends;
And it being positioned at the board-like heat exchange module of enclosure interior, its one end is connected with header box, board-like heat
Exchange module includes several being parallel to the evenly distributed heat exchanger plates in direction of discharging fume, and the both sides of heat exchanger plates are respectively
Being provided with flue support protrusion and medium road support protrusion, the medium road support protrusion of adjacent heat exchanger plates offsets
Lean on or medium road support protrusion leans with the board plane of heat exchanger plates and is connected, form connection medium import
The heat catalysis folding Cheng Liudao of the sealing with media outlet, heat catalysis folding Cheng Liudao include several having
Circumferential passageway that standalone media is imported and exported and make heat catalysis circumferentially passage in being arranged on circumferential passageway
The reciprocal pass partition rolling over Cheng Liudong, forms smoke evacuation once between the flue support protrusion of adjacent heat exchanger plates
Flow through passage.
Further, it is equipped with temperature pick-up in the discharge flue of temperature rise heat exchanger and cooling heat exchanger
Device, medium heater is also associated with heating electromagnetic valve, and closed circulation is additionally provided with connection cooling heat exchange
The medium import of device and a bypass branch of media outlet, bypass branch is provided with bypass solenoid valve, rises
Temperature transmitter on temperature heat exchanger is electrically connected with heating electromagnetic valve, and the temperature in cooling heat exchanger becomes
Device is sent to be electrically connected with bypass solenoid valve.
Further, pass partition is at least one, and the folding number of passes of heat catalysis folding Cheng Liudao is even number,
Header box is positioned at housing side, and is internally provided with dividing plate, and dividing plate will completely cut off in header box and medium
The inlet distribution district of inlet communication and the outlet doab connected with media outlet.
Further, pass partition is at least one, and the folding number of passes of heat catalysis folding Cheng Liudao is odd number,
Header box is made up of two housing parts being positioned at housing both sides.
Further, medium road support protrusion and flue support protrusion be that punching press ripple is protruding, weldering muscle or
Plate muscle.
Further, it is provided with elastomer, elastomer between the other end and the housing of board-like heat exchange module
For spring or rubber.
Further, it is provided with flexible board, flexible board between the other end and the housing of board-like heat exchange module
It is against the L-shaped backup plate on board-like heat exchange module end angle and housing side including the one-body molded card that formed
It is adjacent to the fixed plate of location and connects L-shaped backup plate and the bending bent plate of fixed plate.
The invention has the beneficial effects as follows:
1., under the cycle heat exchange of the heat catalysis in closed circulation, utilize the heat of former cigarette
Neat stress, can realize low power consuming fume treatment, and fume treatment effect is notable, meanwhile, and simple in construction,
Put into and operating cost is low, reliable;
2. smoke evacuation is through cooling heat exchanger and temperature rise heat exchanger, leads cigarette gradient enter cigarette guide cylinder
Guide effect under, smoke evacuation be evenly distributed at board-like heat exchange module flow field, wall occur cold and hot not
Isostasy, improves heat exchange efficiency;
3. smoke evacuation carries out many journeys interlock countercurrent flow with heat catalysis in heat exchange module, phase mutual connection
Contacting surface is long-pending big, and therefore, heat exchange stroke can shorten largely, and the structure of heat exchanger is compacter, more
It is easily mounted on smoke discharging pipe or chimney, and the distance of temperature rise heat exchanger and cooling heat exchanger is unrestricted
System;
4. heat exchanger plates is respectively provided on two sides with support protrusion, not only can form heat catalysis and discharge flue,
Also can improve heat exchanger plates simultaneously and bear the ability of pressure at both sides difference, prevent heat exchanger plates from deforming the sealing caused
The problem lost efficacy, and board-like heat exchange module is originally as a mould that can independently realize sealing heat exchange
Block, is not required to be formed with housing side seal, and therefore, longtime running is reliable, and is prone to carry out modularity
Assemble.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of temperature rise heat exchanger in Fig. 1;
Fig. 3 is the structural representation of flexible board in Fig. 2;
Fig. 4 is the countercurrent flow pattern schematic diagram of the heat exchanger plates pair of the present invention;
Fig. 5 is the forward flow pattern schematic diagram of the heat exchanger plates pair of the present invention.
In figure: 1. temperature rise heat exchanger, 10. housing, 11. flexible boards, 111. fixed plates, 112. bendings
Bent plate, 113.L shape backup plate, 12. board-like heat exchange modules, 121. heat exchanger plates pair, 1211. points of journeys every
Plate, 1212. circumferential passageways, 1213. flue support protrusion, 1214. medium road support protrusion, 13. rows
Cigarette channel, 131. outlet(discharge) flanges, 132. smoke evacuation guide cylinders, 14. fume inlet passages, 141. suction flanges,
142. enter cigarette guide cylinder, 15. header boxs, 16. media outlet, 17. medium imports, 18. header boxs
Cover plate, 19. dividing plates, 2. cooling heat exchanger, 3. bypass solenoid valve, 4. medium compensating tank, 5. circulation
Pump, 6. medium heater, 7. heating electromagnetic valve, 8. desulfurating dust-removing equipment;
A: smoke evacuation, B: heat catalysis (can be the liquid that the coefficients of heat transfer such as water, coolant or oil are high).
Detailed description of the invention
In order to make those skilled in the art be more fully understood that technical scheme, below
In conjunction with accompanying drawing and most preferred embodiment, the present invention is described in further detail.
As Figure 1-5, the board-like low-level (stack-gas) economizer of one of the present invention, it includes being set in turn in cigarette
Temperature rise heat exchanger 1, desulfurating dust-removing equipment 8 and cooling heat exchanger 2 on gas delivery pipe, pipeline connects
The medium import 17 of temperature rise heat exchanger 1 and the media outlet 16 of cooling heat exchanger 2 and pipeline are even
Connect the media outlet 16 of temperature rise heat exchanger 1 and the medium import 17 of cooling heat exchanger 2, form heat transfer
The closed circulation of medium, closed circulation be provided with medium compensating tank 4, circulating pump 5 and
Medium heater 6, medium compensating tank 4 can supplement the heat catalysis in closed circulation, stablize back
Medium pressure in road, circulating pump 5 provides heat catalysis circulation power, medium heater 6 to be located at liter
Medium import 17 rear end of temperature heat exchanger 1, adds the heat catalysis entering temperature rise heat exchanger 1
Heat, it is ensured that exhaust gas temperature;
Wherein, temperature rise heat exchanger 1 is consistent with the structure of cooling heat exchanger 2, and it all includes:
Housing 10, its upper and lower end is provided with fume inlet passage 14 and discharge flue 13, fume inlet passage 14
By suction flange 141 with enter cigarette guide cylinder 142 and constitute, discharge flue 13 is by outlet(discharge) flange 131 He
Smoke evacuation guide cylinder 132 is constituted, and enters the inwall of cigarette guide cylinder 142 and smoke evacuation guide cylinder 132 and is provided with and leads cigarette
Gradient, i.e. enters cigarette guide cylinder 142 and smoke evacuation guide cylinder 132 has conical internal cavity, or enters cigarette guide cylinder
142 and smoke evacuation guide cylinder 132 inner chamber four wall be with discharge fume direction formed be more than 0 ° of angle oblique
Wall, can select with the shape of housing 10 as required;Also set on the upper and lower side port of housing 10 simultaneously
There are pull bar or lacing wire (not shown), for fixing and spacing board-like heat exchange module 12;
The header box 15 connected with housing 10, medium import 17 and media outlet 16 are respectively arranged on it
Two ends;
And it is positioned at the board-like heat exchange module 12 within housing 10, its one end is connected with header box 15,
Board-like heat exchange module 12 includes several being parallel to the evenly distributed heat exchanger plates in direction of discharging fume, heat exchanger plates
Be respectively provided on two sides with flue support protrusion 1213 and medium road support protrusion 1214, adjacent heat exchanger plates
Medium road support protrusion 1214 lean, or the medium road support protrusion 1214 on a heat exchanger plates
Lean with another heat exchanger plates upper plate plane, and connect formation connection medium import 17 and media outlet
The heat catalysis folding Cheng Liudao of the sealing of 16, heat catalysis folding Cheng Liudao include several having standalone media
The circumferential passageway 1212 imported and exported and make heat catalysis circumferentially passage in being arranged on circumferential passageway 1212
1212 pass partitions 1211 back and forth rolling over Cheng Liudong, the flue support protrusion 1213 of adjacent heat exchanger plates it
Between formed smoke evacuation once-through passage, between the flue support protrusion 1213 of adjacent heat exchanger plates formed row
Cigarette once-through passage, flue support protrusion 1213 can connect by abutting contact relatively, it is possible to flue props up
Support protruding 1213 leans with the board plane of heat exchanger plates and contact connection, prevents flatulence of heat type from deforming, discharge fume and
Heat catalysis flows to be mutually perpendicular to, and carries out in staggered adverse current in flowing through board-like heat exchange module 12
Heat exchange;
As shown in Figure 4, circumferential passageway 1212 is divided into import and export passage and folding journey by pass partition 1211
Passage, importing and exporting channel width can be identical with folding journey channel width, it is also possible to different;Each journey channel width
Degree can be identical, it is also possible to different;Folding number of passes and every journey channel width can be adjusted as required;
In medium road, the both sides support protrusion 1214 forming circumferential passageway 1212 after two heat exchanger plates overlappings
Electric resistance welding or bonding connection is carried out with the medium road support protrusion 1214 as pass partition 1211,
Circumferential passageway 1212 both sides sequential welding forms the medium folding Cheng Liudao sealed, and pass partition 1211 is permissible
It is pressed into contact with connection, sequential welding, intermittent weld or multiple spot welding, forms internal tool Packed many journeys folding journey
The heat exchanger plates of runner is to 121;Heat exchanger plates to the heat catalysis pressure in 121 more than heat exchanger plates to 121
Between smoke evacuation pressure;Heat exchanger plates the flue support protrusion 1213 between 121 is abutted or
Flue support protrusion 1213 and board plane against, formed and flow to parallel smoke evacuation once-through with discharging fume
Passage;Medium road support protrusion 1214 and flue support protrusion 1213 can be that punching press ripple is protruding, weld
Muscle or plate muscle, medium road support protrusion 1214 and flue support protrusion 1213 are symmetrically or non-symmetrically,
I.e. the protruding degree of depth of heat exchanger plates both sides can be equal, it is possible to;Projection can be various corrugated form, matchmaker
Jie road support protrusion 1214 and flue support protrusion 12133 not only can form heat catalysis and smoke evacuation
Passage, can mutually support simultaneously, improves heat exchanger plates and bears the ability of pressure at both sides difference, prevents heat exchanger plates
The problem of the seal failure that deformation causes, and board-like heat exchange module 12 can be independently real as one
Now sealing the module of heat exchange, be not required to be formed with housing 10 side seal, therefore, longtime running can
Lean on, it is easy to carry out modularization assembling and large-scale production;
Heat exchanger plates can use carbon steel, rustless steel, titanium and alloy thereof, nickel and nickel-base alloy thereof or other steel
Planting or non-ferrous metal, its temperature resistant range is at-196~1200 DEG C.
Therefore, compared with prior art, former cigarette initially enters cooling heat exchanger 2 to the MGGH of this invention
With heat transfer medium generation heat exchange, it is achieved cooling, the former cigarette temperature after cooling reduces, and flow subtracts simultaneously
Little, it is possible to carry out fully in the desulfurating dust-removing equipment 8 being positioned at cooling heat exchanger 2 front end fully
Desulfurization and dedusting, effectively reduce the sulfur content of smoke evacuation;After heat catalysis absorbs heat in cooling heat exchanger 2,
Being driven by circulating pump 5 and flow in closed circulation, heat release in temperature rise heat exchanger 1, to process
After neat stress heating, improve neat stress exhaust temperature, prevent the Vapor adsorption that neat stress is condensed
Corrosion flue or chimney, makes neat stress be more easy to, dissipate in the more rapid high-altitude that rises to;Therefore, this heat exchange system
System can realize low power consuming fume treatment, and fume treatment effect is notable, meanwhile, simple in construction, put into and
Operating cost is low, uses reliable;
As in figure 2 it is shown, smoke evacuation is when cooling heat exchanger 2 and temperature rise heat exchanger 1, enter in its taper
Under the guide effect of cigarette guide cylinder 142, smoke evacuation is evenly distributed at board-like heat exchange module 12 flow field,
There is weighing apparatus phenomenon uneven in temperature in wall, improves heat exchange efficiency;Discharge fume in heat exchange module and heat transfer matchmaker
Being situated between and carry out many journeys and interlock countercurrent flow, the area that contacts with each other is big, and therefore, heat exchange stroke can be largely
Shortening, the structure of heat exchanger is compacter, it is easier to be arranged on smoke discharging pipe or chimney;Heat exchanger plates
Being parallel to smoke evacuation flow to arrange, smoke evacuation resistance is little, meanwhile, is prone to clear up and tie up inside heat exchanger
Protect;Heat exchanger plates is respectively provided on two sides with support protrusion, not only can form heat catalysis and discharge flue 13,
Also can improve heat exchanger plates simultaneously and bear the ability of pressure at both sides difference.
As it is shown in figure 1, be equipped with in the discharge flue 13 of temperature rise heat exchanger 1 and cooling heat exchanger 2
Temperature transmitter, medium heater 6 is also associated with heating electromagnetic valve 7, and closed circulation is additionally provided with
The medium import 17 of connection cooling heat exchanger 2 and a bypass branch of media outlet 16, bypass branch
Being provided with bypass solenoid valve 3, the temperature transmitter on temperature rise heat exchanger 1 is electrical with heating electromagnetic valve 7
Connecting, the temperature transmitter in cooling heat exchanger 2 is electrically connected with bypass solenoid valve 3, heating electromagnetic
Valve 7 and bypass solenoid valve 3 start medium heater 6 according to the exhaust gas temperature in discharge flue 13 respectively
Or bypass branch, on the basis of meeting fume treatment requirement, save the unnecessary energy further and disappear
Consumption.
Pass partition 1211 at least one in this example, the folding number of passes of heat catalysis folding Cheng Liudao is even
Number, heat catalysis imports and exports and is being positioned at housing 10 side with, header box 15, compact conformation,
Dismountable header box cover plate 18 also can be provided with, it is simple to cleaning and access panel in the side of header box 15
Runner in formula heat exchange module 12, header box 15 is internal is provided with dividing plate 19, and dividing plate 19 will conflux
Completely cut off into the inlet distribution district connected with medium import 17 in case 15 and connect with media outlet 16
Outlet doab;When pass partition 1211 is even number, medium just completes in circumferential passageway 1212
Odd-times folding journey, medium is imported and exported in different edge, and turnover flow direction is identical, and header box 15 is by position
Two housing parts 10 in housing 10 both sides form.
As shown in Figure 4, when heat catalysis is reverse flow, plate package poststack, vertical direction is made
For the import and export passage of smoke evacuation, i.e. discharge fume and guide and enter from below by entering cigarette guide cylinder 142, once flow
Crossing plate, flow out from top, heat catalysis transverse reciprocating folding Cheng Liudong, below side, the first journey is led to
Road junction enters, and after repeatedly rolling over journey, above side, the first journey passway is flowed out, i.e. low-temperature receiver turnover
For reverse flow;Certainly both flow directions can also be inverted, with the flow direction the former described for
Preferably.
As it is shown in figure 5, when heat catalysis is for forward flowing, plate package poststack, vertical direction is made
For smoke evacuation import and export passage, i.e. discharge fume by enter cigarette guide cylinder 142 guide from top enter, once flow
Crossing plate, from flowing out below, heat catalysis transverse reciprocating folding Cheng Liudong, below side one end first
Journey passway enters, and after repeatedly rolling over journey, above the side other end, the first journey passway is flowed out,
I.e. heat catalysis passes in and out as forward to flow;Certainly both flow directions can also be inverted.
In this example, the other end of board-like heat exchange module 12 and housing 10 are for flexibly connecting, when being heated,
Each heat transfer plate in board-like heat exchange module 12 expands deformation, and mutually extruding easily occurs to seal to lose
Effect and dielectric leakage mix, and heat exchanger effect was lost efficacy, the other end of board-like heat exchange module 12 and shell
Presetting plastic deformation space between body 10, absorb flatulence of heat type deformation, improve the condenser life-span, flexibility is even
Connect and can realize by being provided with elastomer between the other end of board-like heat exchange module 12 and housing 10, bullet
Gonosome is spring or rubber, it is possible to by between the other end and the housing 10 of board-like heat exchange module 12
Arrange flexible board 11 to realize, as it is shown on figure 3, flexible board 11 includes that bending forms card and is against board-like heat
Exchange module 12 end angle on L-shaped backup plate 113 and housing 10 side be adjacent to location fixed plate 111
And connect L-shaped backup plate 113 and the bending bent plate 112 of fixed plate 111.
The above is only the preferred embodiment of the present invention, it is noted that for the art
For those of ordinary skill, under the premise without departing from the principles of the invention, it is also possible to make some improvement
And retouching, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. a MGGH heat-exchange system, it is characterised in that: include being set in turn in smoke discharge pipe
On temperature rise heat exchanger (1), desulfurating dust-removing equipment (8) and cooling heat exchanger (2), pipeline connect
The medium import (17) of temperature rise heat exchanger (1) and the media outlet (16) of cooling heat exchanger (2),
And pipeline connects media outlet (16) and the matchmaker of cooling heat exchanger (2) of temperature rise heat exchanger (1)
Jie's import (17), forms the closed circulation of heat catalysis, and closed circulation is provided with medium
Compensating tank (4), circulating pump (5) and medium heater (6);Wherein, temperature rise heat exchanger (1)
All include with cooling heat exchanger (2):
Housing (10), its upper and lower end is provided with fume inlet passage (14) and discharge flue (13), enters cigarette
Passage (14) is by suction flange (141) and enters cigarette guide cylinder (142) and constitutes, discharge flue (13)
It is made up of outlet(discharge) flange (131) and smoke evacuation guide cylinder (132), enters cigarette guide cylinder (142) and row
The inwall of cigarette guide cylinder (132) is provided with leads cigarette gradient;
The header box (15) connected with housing (10), described medium import (17) and media outlet
(16) its two ends it are respectively arranged on;
And it is positioned at the board-like heat exchange module (12) that housing (10) is internal, its one end and header box
(15) connect, board-like heat exchange module (12) include several be parallel to discharge fume direction evenly distributed
Heat exchanger plates, heat exchanger plates be respectively provided on two sides with flue support protrusion (1213) and medium road support protrusion
(1214), medium road support protrusion (1214) of adjacent heat exchanger plates leans or medium road supports convex
Rise (1214) lean with the board plane of heat exchanger plates and be connected, formed connect medium import (17) and
The heat catalysis folding Cheng Liudao of the sealing of media outlet (16), heat catalysis folding Cheng Liudao includes several
There is circumferential passageway (1212) that standalone media imports and exports and make in being arranged on circumferential passageway (1212)
Heat catalysis circumferentially passage (1212) back and forth rolls over the pass partition (1211) of Cheng Liudong, adjacent changes
Smoke evacuation once-through passage is formed between the flue support protrusion (1213) of hot plate.
A kind of MGGH heat-exchange system the most according to claim 1, it is characterised in that described
It is equipped with temperature pick-up in the discharge flue (13) of temperature rise heat exchanger (1) and cooling heat exchanger (2)
Device, described medium heater (6) is also associated with heating electromagnetic valve (7), described closed circulation
It is additionally provided with medium import (17) and one side of media outlet (16) of connection cooling heat exchanger (2)
Logical branch road, bypass branch is provided with bypass solenoid valve (3), the temperature on described temperature rise heat exchanger (1)
Degree transmitter is electrically connected with heating electromagnetic valve (7), and the temperature in described cooling heat exchanger (2) becomes
Device is sent to be electrically connected with bypass solenoid valve (3).
A kind of MGGH heat-exchange system the most according to claim 1, it is characterised in that described
Pass partition (1211) at least one, the folding number of passes of described heat catalysis folding Cheng Liudao is even number,
Described header box (15) is positioned at housing (10) side, and is internally provided with dividing plate (19), dividing plate
(19) completely cut off into, by described header box (15), the inlet distribution district connected with medium import (17)
And the outlet doab connected with media outlet (16).
A kind of MGGH heat-exchange system the most according to claim 1, it is characterised in that described
Pass partition (1211) at least one, the folding number of passes of described heat catalysis folding Cheng Liudao is odd number,
Described header box (15) is made up of two housing parts (10) being positioned at housing (10) both sides.
5. according to a kind of MGGH heat-exchange system described in claim 1, it is characterised in that institute
State medium road support protrusion (1214) and flue support protrusion (1213) is that punching press ripple is protruding, welds
Muscle or plate muscle.
The board-like low-level (stack-gas) economizer of one the most according to any one of claim 1 to 5, its feature
It is, between the other end and the housing (10) of described board-like heat exchange module (12), is provided with elastomer,
Described elastomer is spring or rubber.
The board-like low-level (stack-gas) economizer of one the most according to any one of claim 1 to 5, its feature
It is, between the other end and the housing (10) of described board-like heat exchange module (12), is provided with flexible board
(11), described flexible board (11) includes that one-body molded formation card is against board-like heat exchange module (12)
The L-shaped backup plate (113) on angle and housing (10) side is held to be adjacent to the fixed plate (111) of location
And connect L-shaped backup plate (113) and the bending bent plate (112) of fixed plate (111).
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CN111912102A (en) * | 2020-07-08 | 2020-11-10 | 杭州量动自动化设备有限公司 | Fluid heating device using secondary medium and using method thereof |
CN113203087A (en) * | 2021-04-29 | 2021-08-03 | 嘉善县洪峰热电有限公司 | Energy-saving water circulation heating system |
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