CN207162578U - A kind of boiler exhaust gas direct contact type total heat recovery and the white device that disappears - Google Patents
A kind of boiler exhaust gas direct contact type total heat recovery and the white device that disappears Download PDFInfo
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- CN207162578U CN207162578U CN201720680532.3U CN201720680532U CN207162578U CN 207162578 U CN207162578 U CN 207162578U CN 201720680532 U CN201720680532 U CN 201720680532U CN 207162578 U CN207162578 U CN 207162578U
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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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
A kind of boiler exhaust gas direct contact type total heat recovery and the white device that disappears, belong to boiler heat supplying and technical field of energy utilization, the system includes three heat exchange modules, low-temperature zone of wherein discharging fume spray heat recovery module is discharged after boiler low-temperature section exhaust gas temperature is reduced into 20~30 DEG C by spray mode by intermediary's recirculated water, to reclaim smoke discharging residual heat and condensate, and " the disappearing white " of flue gas is realized, and intermediary's recirculated water heats fresh air Sprayer Circulation water by afterheat heat exchanger again；Inlet air of boiler warming and humidifying module carries out spray warming and humidifying by the fresh air Sprayer Circulation water after heating up to inlet air of boiler, and burner hearth high humidity air intake is sent into burner hearth by inlet air of boiler mouth, it is transferred to so as to which smoke discharging residual heat is undergone into burner hearth combustion process with vapor form again in boiler exhaust gas；The boiler exhaust gas of water capacity is significantly improved then by high temperature section waste heat recovery module of discharging fume by the healed water recovery waste heat such as heat supply network backwater, it is achieved thereby that the recycling of smoke discharging residual heat and condensate.
Description
Technical field
The utility model is related to a kind of boiler exhaust gas direct contact type total heat recovery and disappear white device, belong to boiler heat supplying and
Technical field of energy utilization.
Background technology
Contain substantial amounts of vapor, therefore traditional pot in boiler exhaust gas using the fuel combustions such as fire coal, natural gas heating
The exhaust gas temperature of stove is generally up to 80~160 DEG C or so, and a large amount of latent heat and sensible heat in flue gas scatter and disappear in vain.For recovered flue gas
Waste heat, the mode and its feature of currently used waste heat recovery are as follows.
(1) direct-type Exposure degree：The most conventional mode, fume afterheat is used for preboiler air intake, boiler returns
Water or heat supply backwater etc., flue gas are in sensible heat transfer area, and boiler efficiency is typically up to 90%~93% or so, but flue gas pair
Air is only heated and not humidified, and smog discharge temperature is high, and water capacity is big, and waste heat recovery volume is limited.
(2) condenser boiler heat reclamation device：Exhaust gas temperature can be reduced to about 50 DEG C, and fume afterheat is used for preboiler
Air intake, boiler blow-down water or heat supply backwater etc., flue gas are in condensing heat-exchange area, and boiler efficiency improves reachable 3%~6% or so,
Total boiler efficiency reaches as high as 93~98% or so, the efficiency of system influenceed by heat supply backwater it is big, as return water temperature carries
It is high then necessarily cause exhaust gas temperature to improve, and cigarette temperature is further reduced and had any problem.
(3) the flue gas condensing heat reclamation device based on absorption heat pump heat exchange：The efficiency high of absorption type heat pump system, row
Cigarette temperature can be reduced to 20~30 DEG C, and flue gas is in deep condensation heat transfer zone, and boiler efficiency improves reachable 8%~13% or so,
Total boiler efficiency reaches as high as 98~105% or so, and the efficiency of system is not influenceed by heat supply backwater substantially.It is but absorption
The structure of heat pump is more complicated, and cost is higher, and operation expense is larger, it is therefore desirable to considers its Technical Economy, especially
It is that its economy is relatively poor for coal-burning boiler.
Therefore, the shortcomings that above-mentioned all kinds of boiler exhaust gas UTILIZATION OF VESIDUAL HEAT IN modes have respective advantage and disadvantage, and particularly its is intrinsic
On the problems such as being reflected in technology exploitativeness, cost performance, its extensive use is often limited.
In addition, boiler exhaust gas is because containing a large amount of vapor, even minimum discharge standard is had been realized in, but its chimney goes out
Often be present " white cigarette " phenomenon in mouth, particularly in the winter time, because a large amount of steam and cold air largely condense into rapidly water, show as more
Significantly " white cigarette " phenomenon, there is the phenomenon that the periphery masses raise an objection to such pollution in many places, therefore it is required that boiler smoke
Chimney " disappearing white " has become the environmental protection policy requirement in many cities.
Utility model content
The purpose of this utility model and task be, for above-mentioned boiler exhaust gas carry out waste heat recovery and disappear it is white present in save
Energy and environmental issue, boiler exhaust gas cooling and dehumidification is carried out using direct contact heat transfer mode and inlet air of boiler heating humidifies, two
Wall-type heat exchange mode is used between the recirculated water of person, so as to realize boiler exhaust gas waste heat recovery and chimney emission disappear it is white.
Specific descriptions of the present utility model are：A kind of boiler exhaust gas direct contact type total heat recovery and the white device that disappears, including
Heat exchange module of the following three using water as heat-carrying working medium：Low-temperature zone of discharging fume spray heat recovery module 3, inlet air of boiler warming and humidifying mould
Block 10 and smoke evacuation high temperature section waste heat recovery module 12, and mutual connecting line and pipe fitting, it is characterised in that described
Discharge fume low-temperature zone spray heat recovery module 3 by spray chamber 4, water treatment facilities 14, waste heat circulation pump 15, afterheat heat exchanger 20, with
And mutual connecting line forms with pipe fitting, wherein spray chamber 4 is connect by the water inlet end equipment 6 on top, the direct of middle part
Touch hot and humid area section 5, the waste heat pond 13 of bottom form, and the top of water inlet end equipment 6 is provided with water fender 7, water fender 7
Top with discharge section chimney 8 communicate, the top water inlet in waste heat pond 13 is connected with quenched moisturizing G water inlet pipe, remaining hot water
The bottom delivery port in pond 13 is connected with the import of water treatment facilities 14 and waste heat circulation pump 15, the outlet of waste heat circulation pump 15 with it is remaining
The heated side water inlet of heat exchanger 20 is connected, the water inlet of the heated side delivery port and water inlet end equipment 6 of afterheat heat exchanger 20
Mouth is connected, and the heated side delivery port of afterheat heat exchanger 20 is connected with the water inlet of inlet air of boiler warming and humidifying module 10, boiler
The delivery port of air intake warming and humidifying module 10 is connected through back water pump 9 with the heated side water inlet of afterheat heat exchanger 20, and boiler enters
The air inlet of wind warming and humidifying module 10 communicates with inlet air of boiler C blast pipe, the air-out of inlet air of boiler warming and humidifying module 10
Mouth is communicated by the former intake stack of boiler 1 with burner hearth high humidity air intake B burner hearth import, smoke evacuation A air outlet in the stove of boiler 1
Air inlet with high temperature section waste heat recovery module 12 of discharging fume after former minimum discharge device assembly 2 and air-introduced machine 11 is connected, and discharges fume
The air outlet of high temperature section waste heat recovery module 12 is connected with the air inlet of spray chamber 4, smoke evacuation high temperature section waste heat recovery module 12
Side water inlet and healed water water inlet E is heated to communicate, the heated side delivery port of smoke evacuation high temperature section waste heat recovery module 12 and
Healed water water outlet D is communicated, the outlet pipe phase of the condensation water out and terminal condensate W of smoke evacuation high temperature section waste heat recovery module 12
Even.
Afterheat heat exchanger 20 is dividing wall type heat exchanger structure.
Spray chamber 4 is that air and shower water form vertical or lateral arrangement countercurrent flow structure, wherein internal set is filled out
Material uses dead band structure.
Spray chamber 4 and discharge section chimney 8 and its between coupling part composition integral type nicotinic acids countercurrent spray
Tower structure.
Spray chamber 4 is that air and shower water form vertical or lateral arrangement cross-current or parallel flow configuration, works as lateral arrangement
When, the arrangement space for end equipment 6 of intaking extends downwardly into middle part by top, using bilateral to spray or unilateral spray structure.
The arrangement relation of spray chamber 4 and discharge section chimney 8 is split type combining structure.
Smoke evacuation high temperature section waste heat recovery module 12 is arranged on the downstream or upstream of air-introduced machine 11.
Spray chamber 4 uses single-stage spray structure, N levels spray structure or the structure being made up of the spray chamber of N number of series connection, wherein
N>1, and water route is connected by water pipe and sets interstage pumps 21 between level.
Inlet air of boiler warming and humidifying module 10 uses single-stage spray structure, N levels spray structure or the spray chamber by N number of series connection
The structure of composition, wherein N>1, wherein internal set filler, or use dead band structure.
High temperature section waste heat recovery module 12 of discharging fume uses dividing wall type heat exchanger structure, or the spray being made up of N level spray structures
Drench the combined type waste heat recovery component of room and the water water heat exchanger composition using dividing wall type heat exchanger, wherein N>=1, wherein
Inside sets filler, or using dead band structure ".
The moisturizing G in waste heat pond 13 and the processing water H of water treatment facilities 14 water source source include the terminal after processing
Condensate W.
Bypass pipe is set between the outlet of waste heat circulation pump 15 and the outlet of back water pump 9.
The utility model realizes brand-new boiler exhaust gas waste heat recovery new mechanism, by by flue gas waste heat recovery and boiler
Burning --- the flow of smoke evacuation system is combined, and is constituted with innovative residual heat utilization-type boiler combustion and smoke evacuation heat exchange stream
Journey, realize the recycling boiler exhaust gas waste heat of amplitude peak.Filter efficiency can be generally improved for natural gas boiler system
10~13%, total boiler efficiency reaches as high as 98~105% or so.Filter efficiency then can be generally improved for coal-burning boiler
8%~9%, such as if original boiler thermal output of coal-powder boiler is generally up to 90~93%, then by the application of this new technology,
The boiler operating efficiency of Heating Period can be brought up to 98%~101% or so, realize the great-leap-forward in heat supply coal-burning boiler field
Technological progress.
In addition, this technology mode also can reach the white effect that disappears of boiler exhaust gas.
Brief description of the drawings
Fig. 1,2 are system schematics of the present utility model.
Each unit number and title are as follows in Fig. 1,2.
Boiler 1, minimum discharge device assembly 2, smoke evacuation low-temperature zone spray heat recovery module 3, spray chamber 4, direct contact type
Hot and humid area section 5, water inlet end equipment 6, water fender 7, discharge section chimney 8, back water pump 9, inlet air of boiler warming and humidifying module 10,
Air-introduced machine 11, smoke evacuation high temperature section waste heat recovery module 12, waste heat pond 13, water treatment facilities 14, waste heat circulation pump 15, waste heat change
Smoke evacuation A, burner hearth high humidity air intake B, inlet air of boiler C, healed water water outlet D, healed water water inlet in hot device 20, interstage pumps 21, stove
E, boiler low-temperature section smoke evacuation import flue gas F, moisturizing G, processing water H, " disappearing white " smoke evacuation O, cooling and dehumidification smoke evacuation P, terminal condensate
W。
Embodiment
Fig. 1,2 are system schematics of the present utility model.
Specific embodiment of the utility model 1 is as follows：Referring to shown in system schematic 1, boiler exhaust gas direct contact type is complete
Recuperation of heat and disappear white device, including following three the heat exchange module using water as heat-carrying working medium：Low-temperature zone of discharging fume spray recuperation of heat mould
Block 3, inlet air of boiler warming and humidifying module 10 and smoke evacuation high temperature section waste heat recovery module 12, and mutual connecting line with
Pipe fitting, smoke evacuation low-temperature zone spray heat recovery module 3 by spray chamber 4, water treatment facilities 14, waste heat circulation pump 15, afterheat heat exchanger
20 and mutual connecting line and pipe fitting form, wherein spray chamber 4 by the water inlet end equipment 6 on top, middle part it is straight
Connect contact hot and humid area section 5, the waste heat pond 13 of bottom forms, water inlet end equipment 6 top be provided with water fender 7, keep off
The top of water plate 7 communicates with discharge section chimney 8, and the top water inlet in waste heat pond 13 is connected with quenched moisturizing G water inlet pipe,
The bottom delivery port in waste heat pond 13 is connected with the import of water treatment facilities 14 and waste heat circulation pump 15, and waste heat circulation pump 15 goes out
Mouth is connected with the heated side water inlet of afterheat heat exchanger 20, heated side delivery port and the water inlet end equipment 6 of afterheat heat exchanger 20
Water inlet be connected, the heated side delivery port and the water inlet phase of inlet air of boiler warming and humidifying module 10 of afterheat heat exchanger 20
Even, the delivery port of inlet air of boiler warming and humidifying module 10 is connected through back water pump 9 with the heated side water inlet of afterheat heat exchanger 20,
The air inlet of inlet air of boiler warming and humidifying module 10 communicates with inlet air of boiler C blast pipe, inlet air of boiler warming and humidifying module 10
Air outlet communicated by the former intake stack of boiler 1 with burner hearth high humidity air intake B burner hearth import, smoke evacuation A in the stove of boiler 1
Air inlet phase of the air outlet after former minimum discharge device assembly 2 and air-introduced machine 11 with high temperature section waste heat recovery module 12 of discharging fume
Even, the air outlet of smoke evacuation high temperature section waste heat recovery module 12 is connected with the air inlet of spray chamber 4, high temperature section waste heat recovery mould of discharging fume
The heated side water inlet of block 12 communicates with healed water water inlet E, and the heated side of smoke evacuation high temperature section waste heat recovery module 12 goes out
The mouth of a river communicates with healed water water outlet D, the condensation water out of smoke evacuation high temperature section waste heat recovery module 12 and going out for terminal condensate W
Water pipe is connected.
Afterheat heat exchanger 20 is plate type heat exchanger structure.
Spray chamber 4 is that air and shower water form vertical countercurrent flow structure, wherein internal be not provided with filler and use empty
Segment structure.
Spray chamber 4 and discharge section chimney 8 and its between coupling part composition integral type nicotinic acids countercurrent spray
Tower structure.
Smoke evacuation high temperature section waste heat recovery module 12 is arranged on the downstream of air-introduced machine 11.
Spray chamber 4 is single-stage spray structure.
Inlet air of boiler warming and humidifying module 10 is N level spray structures, wherein N>1, wherein internal set filler.
High temperature section waste heat recovery module 12 of discharging fume is dividing wall type heat exchanger structure.
The moisturizing G in waste heat pond 13 and the processing water H of water treatment facilities 14 water quality are to meet the water outlet in waste heat pond 13
Depending on water quality requirement, its water source source includes the terminal condensate W after processing.
Bypass pipe is set between the outlet of waste heat circulation pump 15 and the outlet of back water pump 9.
Specific embodiment of the utility model 2 is as follows：Referring to shown in system schematic 2, spray chamber 4 is air and shower water
The intersection flow structure of lateral arrangement is formed, the arrangement space for end equipment 6 of intaking extends downwardly into middle part by top, using bilateral
To spraying structure.The arrangement relation of spray chamber 4 and discharge section chimney 8 is split type combining structure.Spray chamber 4 is using 2 series connection
Spray chamber composition, and water route is connected by water pipe and sets interstage pumps 21 between level.Smoke evacuation high temperature section waste heat recovery module 12 is single
The spray cell structure of level, and inside uses dead band structure.The remainder of specific embodiment 2 is consistent with specific embodiment 1.
It should be noted that the utility model proposes how using direct contact heat transfer mode to realize boiler exhaust gas
, and can have the specific implementation device of different specific implementation measures and different structure according to this conceptual solutions, it is above-mentioned
Embodiment is only the embodiment of therein a kind of, any other like simple deformation, for example with not
Same moisturizing water quality or the equipment of water quality treatment；Using different heat exchange structure and its simple deformation；Or simple adjustment is set
Standby precedence on stream；Or mode of texturing for being contemplated that of average expert personage etc. is carried out, or by the technical approach
It is applied to the industry of different fuel species, the boiler of different structure, electric furnace or other forms with same or analogous structure
Heating furnace etc. and other similar application occasions, each fall within the scope of protection of the utility model.
Claims (12)
1. a kind of boiler exhaust gas direct contact type total heat recovery and disappear white device, including following three changing using water as heat-carrying working medium
Thermal modules：Low-temperature zone of discharging fume spray heat recovery module (3), inlet air of boiler warming and humidifying module (10) and smoke evacuation high temperature section waste heat return
Receive module (12), and mutual connecting line and pipe fitting, it is characterised in that described smoke evacuation low-temperature zone spray recuperation of heat
Module (3) by spray chamber (4), water treatment facilities (14), waste heat circulation pump (15), afterheat heat exchanger (20) and between each other
Connecting line and pipe fitting form, wherein spray chamber (4) is by the water inlet end equipment (6) on top, the direct contact type warm at middle part
Wet exchange section (5), waste heat pond (13) composition of bottom, the top of water inlet end equipment (6) is provided with water fender (7), dash
The top of plate (7) communicates with discharge section chimney (8), the top water inlet of waste heat pond (13) and the water inlet pipe of quenched moisturizing (G)
It is connected, the bottom delivery port of waste heat pond (13) is connected with the import of water treatment facilities (14) and waste heat circulation pump (15), waste heat
The outlet of circulating pump (15) is connected with the heated side water inlet of afterheat heat exchanger (20), the heated side water outlet of afterheat heat exchanger (20)
Mouth is connected with the water inlet of water inlet end equipment (6), and heated side delivery port and the inlet air of boiler of afterheat heat exchanger (20) heat
The water inlet of humidification module (10) is connected, and the delivery port of inlet air of boiler warming and humidifying module (10) changes through back water pump (9) with waste heat
The heated side water inlet of hot device (20) is connected, air inlet and the inlet air of boiler (C) of inlet air of boiler warming and humidifying module (10)
Blast pipe communicates, and the air outlet of inlet air of boiler warming and humidifying module (10) passes through the former intake stack and burner hearth high humidity of boiler (1)
The burner hearth import of air intake (B) communicates, and the air outlet of smoke evacuation (A) through former minimum discharge device assembly (2) and draws in the stove of boiler (1)
Air inlet of the blower fan (11) afterwards with smoke evacuation high temperature section waste heat recovery module (12) is connected, smoke evacuation high temperature section waste heat recovery module (12)
Air outlet be connected with the air inlet of spray chamber (4), smoke evacuation high temperature section waste heat recovery module (12) heated side water inlet with
Healed water water inlet (E) communicates, heated side delivery port and the healed water water outlet of smoke evacuation high temperature section waste heat recovery module (12)
(D) communicate, the condensation water out of smoke evacuation high temperature section waste heat recovery module (12) is connected with the outlet pipe of terminal condensate (W).
2. boiler exhaust gas direct contact type total heat recovery as claimed in claim 1 and the white device that disappears, it is characterised in that described
Afterheat heat exchanger (20) is dividing wall type heat exchanger structure.
3. boiler exhaust gas direct contact type total heat recovery as claimed in claim 1 and the white device that disappears, it is characterised in that described
Spray chamber (4) is that air and shower water form vertical or lateral arrangement countercurrent flow structure, wherein internal set filler or adopt
With dead band structure.
4. boiler exhaust gas direct contact type total heat recovery as claimed in claim 2 and the white device that disappears, it is characterised in that described
Spray chamber (4) and discharge section chimney (8) and its between coupling part composition integral type nicotinic acids countercurrent spray tower knot
Structure.
5. boiler exhaust gas direct contact type total heat recovery as claimed in claim 1 and the white device that disappears, it is characterised in that described
Spray chamber (4) is that air and shower water form vertical or lateral arrangement cross-current or parallel flow configuration, when lateral arrangement, water inlet
The arrangement space of end equipment (6) extends downwardly into middle part by top, using bilateral to spray or unilateral spray structure.
6. boiler exhaust gas direct contact type total heat recovery as claimed in claim 5 and the white device that disappears, it is characterised in that described
The arrangement relation of spray chamber (4) and discharge section chimney (8) is split type combining structure.
7. boiler exhaust gas direct contact type total heat recovery as claimed in claim 1 and the white device that disappears, it is characterised in that described
Smoke evacuation high temperature section waste heat recovery module (12) is arranged on the downstream or upstream of air-introduced machine (11).
8. boiler exhaust gas direct contact type total heat recovery as claimed in claim 1 and the white device that disappears, it is characterised in that described
Spray chamber (4) uses single-stage spray structure, N levels spray structure or the structure being made up of the spray chamber of N number of series connection, wherein N>1, and
Water route is connected by water pipe and sets interstage pumps (21) between level.
9. boiler exhaust gas direct contact type total heat recovery as claimed in claim 1 and the white device that disappears, it is characterised in that described
Inlet air of boiler warming and humidifying module (10) uses single-stage spray structure, N levels spray structure or is made up of the spray chamber of N number of series connection
Structure, wherein N>1, wherein internal set filler, or use dead band structure.
10. boiler exhaust gas direct contact type total heat recovery as claimed in claim 1 and the white device that disappears, it is characterised in that described
Smoke evacuation high temperature section waste heat recovery module (12) use dividing wall type heat exchanger structure, or by the spray chamber that N level spray structures form with
The combined type waste heat recovery component formed using the water water heat exchanger of dividing wall type heat exchanger, wherein N>=1, wherein internal set
Filler, or using dead band structure ".
11. boiler exhaust gas direct contact type total heat recovery as claimed in claim 1 and the white device that disappears, it is characterised in that described
The water source source of the moisturizing (G) in waste heat pond (13) and the processing water (H) of water treatment facilities (14) includes the terminal after processing
Condensate (W).
12. boiler exhaust gas direct contact type total heat recovery as claimed in claim 1 and the white device that disappears, it is characterised in that described
Bypass pipe is set between the outlet of waste heat circulation pump (15) and the outlet of back water pump (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720680532.3U CN207162578U (en) | 2017-06-12 | 2017-06-12 | A kind of boiler exhaust gas direct contact type total heat recovery and the white device that disappears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720680532.3U CN207162578U (en) | 2017-06-12 | 2017-06-12 | A kind of boiler exhaust gas direct contact type total heat recovery and the white device that disappears |
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| Publication Number | Publication Date |
|---|---|
| CN207162578U true CN207162578U (en) | 2018-03-30 |
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ID=61711761
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720680532.3U Active CN207162578U (en) | 2017-06-12 | 2017-06-12 | A kind of boiler exhaust gas direct contact type total heat recovery and the white device that disappears |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724429A (en) * | 2018-12-21 | 2019-05-07 | 江苏格陵兰传热科技有限公司 | Heat reclamation energy-saving-type gas cooling device |
| CN113865404A (en) * | 2021-09-30 | 2021-12-31 | 北京金房暖通节能技术股份有限公司 | Flue gas waste heat recovery system |
-
2017
- 2017-06-12 CN CN201720680532.3U patent/CN207162578U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724429A (en) * | 2018-12-21 | 2019-05-07 | 江苏格陵兰传热科技有限公司 | Heat reclamation energy-saving-type gas cooling device |
| CN113865404A (en) * | 2021-09-30 | 2021-12-31 | 北京金房暖通节能技术股份有限公司 | Flue gas waste heat recovery system |
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