CN205824999U - Residual heat from boiler fume recovery system - Google Patents

Residual heat from boiler fume recovery system Download PDF

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Publication number
CN205824999U
CN205824999U CN201620788361.1U CN201620788361U CN205824999U CN 205824999 U CN205824999 U CN 205824999U CN 201620788361 U CN201620788361 U CN 201620788361U CN 205824999 U CN205824999 U CN 205824999U
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China
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heat
water
exchanger rig
arranges
boiler
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Expired - Fee Related
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CN201620788361.1U
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Chinese (zh)
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关文吉
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关文吉
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

Abstract

This utility model provides a kind of residual heat from boiler fume recovery system, and including exhaust gases passes, heat-exchange system and water circulation system, described heat-exchange system includes the first heat-exchanger rig and the second heat-exchanger rig;Described first heat-exchanger rig is internal arranges heat-exchanging tube bundle, and side lower part arranges water inlet, and upper lateral part arranges outlet, and bottom arranges flue gas condensing water reclamation system;Described second heat exchange transposition is internal arranges heat-exchanging tube bundle, and side lower part arranges water inlet pipe, and upper lateral part arranges outlet, and bottom arranges flue gas condensing water reclamation system, and described second heat-exchanger rig connects with heat pump;Described water circulation system includes the first water circulation system and the second water circulation system;Described first water circulation system is that boiler water filling heats by described first heat-exchanger rig;Described second water circulation system is that boiler water filling heats by described second heat-exchanger rig and heat pump.

Description

Residual heat from boiler fume recovery system
Technical field
This utility model relates to energy-conserving and environment-protective technical field, particularly to a kind of residual heat from boiler fume recovery system.
Background technology
The world energy sources architectural feature based on fossil energy so that fossil energy move towards exhausted and fossil energy utilize right The pollution of environment annoyings the mankind.Earth energy resource consumption, Acid Rain Pollution, water resources crisis, natural biology multiformity fall sharply, The pollution of persistent organism is more and more prominent so that China's energy environment issues is on the rise, and energy-saving and emission-reduction situation is nervous.
Along with the fast development of China's economy, after boiler fired coal, most waste heat energy is discharged in environment, to heat Can lose in a large number.Exhaust gas temperature is often higher than design temperature, only by the low efficiency of boiler, also add the powder of cleaner unit Dirt concentration of emission, causes huge pollution to environment.In recent years, due to energy shortage, along with carrying out further of energy conservation, Various advanced boilers novel, energy-conservation are gradually improved.Use advanced burner to enhance burning, reduce imperfect combustion. But, reduce exhaust gas heat loss and become estranged the technology still slower development of Mist heat recovering.In order to improve the thermal effect of boiler further Rate, reaches energy-saving and cost-reducing purpose, and Mist heat recovering is also an important energy saving way.
At present, domestic and international flue gas waste heat recovery apparatus uses metal heat-exchange material, primary structure form to have swinging mostly Heat exchanger, welded plate type heat exchanger, welding pipe heat exchanger, heat-pipe heat exchanger, thermal medium formula heat exchanger etc., its principle is all adopted With boiler utilizable fume afterheat condensate recycling device, it is achieved obvious heat of smoke and the recycling of water vapour condensation latent heat, Improve the thermal efficiency of boiler.But, above-mentioned heat exchanger form is single, and heat exchange efficiency is low, easily causes the steam in flue gas Enter in air.
Accordingly, it would be desirable to a kind of residual heat from boiler fume recovery system that can be effectively improved heat exchange efficiency.
Utility model content
The purpose of this utility model is to provide a kind of residual heat from boiler fume recovery system, including exhaust gases passes, heat exchange system System and water circulation system, described heat-exchange system includes the first heat-exchanger rig and the second heat-exchanger rig;
Described first heat-exchanger rig is internal arranges heat-exchanging tube bundle, and side lower part arranges water inlet, and upper lateral part arranges outlet, the end Portion arranges flue gas condensing water reclamation system;
Described second heat exchange transposition is internal arranges heat-exchanging tube bundle, and side lower part arranges water inlet pipe, and upper lateral part arranges outlet, the end Portion arranges flue gas condensing water reclamation system, and described second heat-exchanger rig connects with heat pump;
Described water circulation system includes the first water circulation system and the second water circulation system;
Described first water circulation system is that boiler water filling heats by described first heat-exchanger rig;Described second water cyclic system Uniting by described second heat-exchanger rig and heat pump is that boiler water filling heats.
Preferably, described flue gas condensing system includes solidifying water pond and condensed water outlet pipe, and described solidifying water pond is by pipeline even Connecing described condensed water outlet pipe, described condensed water outlet pipe is provided with water seal.
Preferably, described heat pump is electric drive heat pump or absorption heat pump.
Preferably, described first device outlet connects with boiler, heats for boiler water filling.
Preferably, described heat pump includes the first water inlet, and the first outlet, the second water inlet and the second outlet are described First water inlet, the first outlet are connected with described second heat-exchanger rig;Described second water inlet, the second outlet are with boiler even Logical.
Preferably, described first heat-exchanger rig, the second heat-exchanger rig are connected through ring flange with described exhaust gases passes interface.
Preferably, described exhaust gases passes direction is mutually perpendicular to heat-exchanging tube bundle arranged direction in described heat-exchanger rig.
A kind of residual heat from boiler fume recovery system that this utility model provides substantially increases heat exchange by repeatedly heat exchange and imitates Rate, it is to avoid in flue gas, steam is drained in air.
Should be appreciated that aforementioned description substantially is exemplary illustration and explanation with follow-up detailed description, should not It is used as the restriction of content claimed to this utility model.
Accompanying drawing explanation
With reference to the accompanying drawing enclosed, the more purpose of this utility model, function and advantage will be by this utility model embodiment party The described below of formula is illustrated, wherein:
Fig. 1 diagrammatically illustrates the structure chart of this utility model residual heat from boiler fume recovery system;
Fig. 2 shows this utility model heat pump structure schematic diagram;
Fig. 3 shows the structure chart of this utility model residual heat from boiler fume recovery system the first heat-exchanger rig;
Fig. 4 shows this utility model residual heat from boiler fume recovery system heat exchanger flange plate structure figure;
Fig. 5 shows this utility model residual heat from boiler fume recovery system U-shape structure condensed water service branch structure figure.
Detailed description of the invention
By with reference to one exemplary embodiment, the purpose of this utility model and function and be used for realizing these purposes and function Method will be illustrated.But, this utility model is not limited to one exemplary embodiment disclosed below;Can be by not With form, it is realized.The essence of description is only to help various equivalent modifications Integrated Understanding this utility model Detail.
Hereinafter, embodiment of the present utility model will be described with reference to the drawings.In the accompanying drawings, identical reference represents Same or similar parts, or same or similar step.
The structure chart of this utility model residual heat from boiler fume recovery system as shown in Figure 1, a kind of residual heat from boiler fume reclaims System, including exhaust gases passes 104, heat-exchange system and water circulation system, described heat-exchange system includes the first heat-exchanger rig 100 and Two heat-exchanger rigs 200.First heat-exchanger rig 100 is connected through ring flange 103 with exhaust gases passes 104 interface;Second heat-exchanger rig 200 It is connected through ring flange 203 with exhaust gases passes 204 interface.
First heat-exchanger rig 100 is internal arranges heat-exchanging tube bundle 105, and side lower part arranges water inlet 101, upper lateral part arranges water outlet Mouth 102, bottom arranges flue gas condensing water reclamation system.Described first heat-exchanger rig outlet 102 connects with boiler;Described flue gas Condensation water recovery system includes solidifying water pond 106 and condensed water outlet pipe 107, and described solidifying water pond 106 connects described cold by pipeline Solidifying water outlet pipe 107.Wherein, the direction of exhaust gases passes 104 and the layout of heat-exchanging tube bundle 105 in described first heat-exchanger rig 100 Direction is mutually perpendicular to.
Second heat-exchanger rig 200 is internal arranges heat-exchanging tube bundle 205, and side lower part arranges water inlet 201, upper lateral part is arranged out The mouth of a river 202, bottom arranges flue gas condensing water reclamation system.Described flue gas condensing water reclamation system includes solidifying water pond 206 and condensation Water outlet pipe 207, described solidifying water pond 206 connects described condensed water outlet pipe 207 by pipeline.Wherein, the side of exhaust gases passes 204 It is mutually perpendicular to the arranged direction of heat-exchanging tube bundle 205 in described first heat-exchanger rig 200.
In the present embodiment, flue gas condensing water outlet pipe 107 (207) is preferably U-shape structure.
Water circulation system includes the first water circulation system and the second water circulation system.First water circulation system is changed by first Hot charging is set to boiler water filling heating,
Second water circulation system is that boiler water filling heats by the second heat-exchanger rig, heat pump.
This utility model heat pump structure schematic diagram as shown in Figure 2, it is preferable that electric drive heat pump selected by the present embodiment heat pump, In certain embodiments, absorption heat pump can be selected.Heat pump 300 includes the first water inlet 304, the first outlet 303, second Water inlet 302 and the second outlet 301, the first water inlet 304 connects with the second heat-exchanger rig outlet 202, the first outlet 303 connect with the second heat exchange transposition water inlet 201, and the second water inlet 302 connects with boiler discharging tube, the second outlet 301 with Deoxygenation water tank connects, to boiler water filling.
The structure chart of this utility model residual heat from boiler fume recovery system the first heat-exchanger rig, the first heat exchange as shown in Figure 3 Device 100 inner vertical arranges heat-exchanging tube bundle 105, is provided with the ring flange being connected with exhaust gases passes outside the first heat-exchanger rig 103, side lower part is provided with water inlet 101, and upper lateral part is provided with outlet 102, and bottom is provided with flue gas condensing water reclamation system.Wherein, Flue gas condensing water reclamation system is by coagulating water pond 106 and condensed water outlet pipe 107 forms.
This utility model residual heat from boiler fume recovery system heat exchanger flange plate structure figure as shown in Figure 4;This reality shown in Fig. 5 With New-type boiler flue gas waste heat recovery system U-shape structure condensed water service branch structure figure.
Combine Fig. 1-Fig. 2 in detail below and describe work process of the present utility model in detail.
The temperature discharged by boiler is that the Boiler Steam of 45 DEG C enters through the water inlet 101 of the first heat-exchanger rig 100 The heat-exchanging tube bundle 105 of one heat-exchanger rig 100, meanwhile, condensed water also enters heat-exchanging tube bundle from the water inlet 101 of the first heat-exchanger rig 105.The smoke mixture of boiler emission cold with in heat-exchanging tube bundle 105 in exhaust gases passes 104 enters the first heat-exchanger rig 100 Solidifying water carries out heat exchange.Water vapour in flue gas drops to solidifying water pond 106 through heat exchange condensation tailing edge heat-exchanging tube bundle 105 outer wall.This In embodiment, solidifying water pond 106 is the water containing pool that middle low two ends are high, the U connected by condensate pans 106 lower end after water vapor condensation Type condensed water outlet pipe 107 flow out after, enter into water-water jet carry out again with.
This utility model uses U-shaped condensed water outlet pipe to be provided with water seal, prevents the water vapour gas in flue gas to be drained into greatly In gas.
Boiler Steam and condensed water temperature after heat exchange in heat-exchanging tube bundle 105 are increased to more than 75 DEG C, through first The outlet 102 of heat-exchanger rig 100 exits into boiler.
Flue gas temperature after the first heat-exchanger rig 100 heat exchange is increased to 50 DEG C, exhaust gases passes enter the second heat exchange dress Put 200.The temperature discharged by boiler is the second water inlet that the Boiler Steam of 45 DEG C and condensed water enter into electric drive heat pump 300 302, after electric drive heat pump 300 heat exchange, temperature is down to 10 DEG C and is intake through the first outlet 303 and the second heat-exchanger rig 200 Mouth 201 enters the second heat-exchanger rigs 200 and carries out heat exchange.In heat transfer process in second heat-exchanger rig 200 and first device 100 Heat transfer process is identical, is described again here.Boiler Steam and condensate temperature after the second heat-exchanger rig 200 heat exchange raise To 25 DEG C of first water inlets 304 being entered electric drive heat pump 300 by the second heat-exchanger rig outlet 202, enter into electricity afterwards and drive Dynamic heat pump 300, after electric drive heat pump 300 heat exchange, temperature is increased to 95 DEG C by the second outlet 301 of electric drive heat pump 103 Enter into boiler.
Steam in flue gas in the second heat-exchanger rig 200 after heat exchange by drop to condensate pans 206 through condensation Water outlet pipe 207 flow out after, enter into water-water jet carry out again with.
Flue-gas temperature through this utility model flue gas waste heat recovery system is down to less than 30 DEG C, exhaust gases passes discharge. A kind of residual heat from boiler fume recovery system that this utility model provides substantially increases heat exchange efficiency by repeatedly heat exchange, it is to avoid Moisture discharge in flue gas is in air.
In conjunction with the explanation of the present utility model disclosed here and practice, other embodiments of the present utility model are for this area Technical staff is easy to expect and understand.Illustrate and embodiment be to be considered only as exemplary, of the present utility model really Scope and spirit are all defined in the claims.

Claims (7)

1. a residual heat from boiler fume recovery system, including exhaust gases passes, heat-exchange system and water circulation system, it is characterised in that Described heat-exchange system includes the first heat-exchanger rig and the second heat-exchanger rig;
Described first heat-exchanger rig is internal arranges heat-exchanging tube bundle, and side lower part arranges water inlet, and upper lateral part arranges outlet, and bottom sets Put flue gas condensing water reclamation system;
Described second heat exchange transposition is internal arranges heat-exchanging tube bundle, and side lower part arranges water inlet pipe, and upper lateral part arranges outlet, and bottom sets Putting flue gas condensing water reclamation system, described second heat-exchanger rig connects with heat pump;
Described water circulation system includes the first water circulation system and the second water circulation system;
Described first water circulation system is that boiler water filling heats by described first heat-exchanger rig;Described second water circulation system is led to Cross described second heat-exchanger rig and heat pump is boiler water filling heating.
System the most according to claim 1, it is characterised in that described flue gas condensing system includes that solidifying water pond and condensed water go out Water pipe, described solidifying water pond connects described condensed water outlet pipe by pipeline, and described condensed water outlet pipe is provided with water seal.
System the most according to claim 1, it is characterised in that described heat pump is electric drive heat pump or absorption heat pump.
System the most according to claim 1, it is characterised in that described first heat-exchanger rig outlet connects with boiler, for Boiler water filling heats.
System the most according to claim 1, it is characterised in that described heat pump includes the first water inlet, the first outlet, Two water inlets and the second outlet, described first water inlet, the first outlet are connected with described second heat-exchanger rig;Described second Water inlet, the second outlet connect with boiler.
System the most according to claim 1, it is characterised in that described first heat-exchanger rig, the second heat-exchanger rig are with described Exhaust gases passes interface connects through ring flange.
7. according to the system described in claim 1 or 6, it is characterised in that in described exhaust gases passes direction and described heat-exchanger rig Heat-exchanging tube bundle arranged direction is mutually perpendicular to.
CN201620788361.1U 2016-07-25 2016-07-25 Residual heat from boiler fume recovery system Expired - Fee Related CN205824999U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620788361.1U CN205824999U (en) 2016-07-25 2016-07-25 Residual heat from boiler fume recovery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620788361.1U CN205824999U (en) 2016-07-25 2016-07-25 Residual heat from boiler fume recovery system

Publications (1)

Publication Number Publication Date
CN205824999U true CN205824999U (en) 2016-12-21

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Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111271722A (en) * 2019-11-19 2020-06-12 新疆和融热力有限公司 Flue gas waste heat deep recovery energy-saving system of gas heat source plant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111271722A (en) * 2019-11-19 2020-06-12 新疆和融热力有限公司 Flue gas waste heat deep recovery energy-saving system of gas heat source plant

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161221

Termination date: 20170725