CN202915394U - Two-section type gas boiler flue gas heat recovery system - Google Patents

Two-section type gas boiler flue gas heat recovery system Download PDF

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Publication number
CN202915394U
CN202915394U CN2012205851815U CN201220585181U CN202915394U CN 202915394 U CN202915394 U CN 202915394U CN 2012205851815 U CN2012205851815 U CN 2012205851815U CN 201220585181 U CN201220585181 U CN 201220585181U CN 202915394 U CN202915394 U CN 202915394U
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CN
China
Prior art keywords
boiler
heat
heat exchanger
gas
flue gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2012205851815U
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Chinese (zh)
Inventor
江荣方
王军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHUANGLIANG NEW ENERGY EQUIPMENT CO Ltd
Original Assignee
SHUANGLIANG NEW ENERGY EQUIPMENT CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHUANGLIANG NEW ENERGY EQUIPMENT CO Ltd filed Critical SHUANGLIANG NEW ENERGY EQUIPMENT CO Ltd
Priority to CN2012205851815U priority Critical patent/CN202915394U/en
Application granted granted Critical
Publication of CN202915394U publication Critical patent/CN202915394U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
    • 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
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The utility model relates to a two-section type gas boiler flue gas heat recovery system which comprises a gas boiler (6), a boiler air intake system (4) and a boiler smoke exhaust system (5). A boil air intake heat exchanger (3) and a flue gas heat recovery heat exchanger (1) are additionally arranged inside the boil smoke exhaust system (5) and the boil air intake system (4). A heat pipe exchanger is used in the boil air intake heat exchanger (3), the flue gas heat recovery heat exchanger (1) is arranged on a portion close to the gas boiler (6), the boil air intake heat exchanger (3) is arranged on a portion far away from the gas boiler (6), and a pipeline system (7) of the flue gas heat recovery heat exchanger (1) is connected with circulating water of a heat pump (2). The two-section type gas boiler flue gas heat recovery system recovers a large amount of huge latent heat and sensible heat in smoke exhaustion of the gas boiler, one part of the latent heat and the sensible heat is used for preheating intake air of the boiler to reduce the consumption of natural gas, and the other part of the latent heat and the sensible heat is used as the heat source of the heat pump, and used as other heat sources after being improved. Condensed water is generated in the cooling process of flue gas.

Description

Two-period form gas fired-boiler smoke heat energy recovery system
Technical field
The utility model relates to a kind of two-period form gas fired-boiler smoke heat energy recovery system.Be used for the energy-saving and emission-reduction transformation of boiler or similar industry.
Background technology
Follow wideling popularize of national energy-saving environmental protection policy rules, gas fired-boiler has the trend that replaces gradually coal-burning boiler, oil burning boiler in a lot of industries.Main cause is that coal and oil produce a large amount of dust when burning, a large amount of sour gas formation of burning generation acid rain weldings.Compare with oil with coal, natural gas is a kind of clean energy resource, and sufficient combustion produces dust hardly; Natural gas has the acid gas removal link in process of production, so the content of acid gas in the natural gas is extremely low, acid gas-containing hardly in the boiler exhaust gas does not destroy environment.
Because the smoke evacuation of gas fired-boiler is very clean, so the waste heat that reclaims the gas fired-boiler smoke evacuation is convenient.But, contain the steam about 18% in the gas fired-boiler smoke evacuation, condensing at worst cold case steam discharges a large amount of latent heat, and this latent heat amount is huge, to such an extent as to rely on merely the preboiler air intake can't reclaim it fully, this just needs to adopt new scheme and technology fully to reclaim this waste heat.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of two-period form gas fired-boiler smoke heat energy recovery system that can reclaim the latent heat that water recovery discharges in the gas fired-boiler smoke evacuation fully is provided.
The purpose of this utility model is achieved in that a kind of two-period form gas fired-boiler smoke heat energy recovery system, comprise: gas fired-boiler, inlet air of boiler system and boiler exhaust gas system, have additional inlet air of boiler heat exchanger and flue gas heat in described boiler exhaust gas system and the inlet air of boiler system and reclaim heat exchanger, the inlet air of boiler heat exchanger adopts heat exchange of heat pipe, wherein the hot side of inlet air of boiler heat exchanger is arranged in the boiler exhaust gas system, cold side is arranged in the inlet air of boiler system, flue gas heat reclaims heat exchanger and is arranged near the gas fired-boiler place, the inlet air of boiler heat exchanger is arranged on away from the gas fired-boiler place, and the pipe-line system that flue gas heat reclaims heat exchanger is connected with the recirculated water of heat pump.
The beneficial effects of the utility model are:
Waste heat in the smoke evacuation of the utility model inlet air of boiler heat exchanger recovery boiler is used for the preboiler air intake, improves the inlet air of boiler enthalpy, reduces boiler natural gas consumption; Heat in the flue gas heat recovery heat exchanger recovered flue gas is as the thermal source of heat pump, and flue gas heat reclaims heat exchanger solidifying water generates, has played simultaneously the dual purpose of recycle-water resource and the energy.
Description of drawings
Fig. 1 is the utility model two-period form gas fired-boiler smoke heat energy recovery system schematic flow sheet.
Reference numeral among the figure:
Flue gas heat reclaims heat exchanger 1, heat pump 2, inlet air of boiler heat exchanger 3, inlet air of boiler system 4, boiler exhaust gas system 5, gas fired-boiler 6, pipe-line system 7.
The specific embodiment
Referring to Fig. 1, Fig. 1 is a kind of two-period form gas fired-boiler of the utility model smoke heat energy recovery system schematic flow sheet.As seen from Figure 1, the utility model two-period form gas fired-boiler smoke heat energy recovery system, comprise: gas fired-boiler 6, inlet air of boiler system 4 and boiler exhaust gas system 5, have additional inlet air of boiler heat exchanger 3 and flue gas heat in described boiler exhaust gas system 5 and the inlet air of boiler system 4 and reclaim heat exchanger 1, inlet air of boiler heat exchanger 3 adopts heat exchange of heat pipe, wherein the hot side of inlet air of boiler heat exchanger 3 is arranged in the boiler exhaust gas system 5, cold side is arranged in the inlet air of boiler system 4, flue gas heat reclaims heat exchanger 1 and is arranged near gas fired-boiler 6 places, inlet air of boiler heat exchanger 3 is arranged on away from gas fired-boiler 6 places, and the pipe-line system 7 that flue gas heat reclaims heat exchanger 1 is connected with the recirculated water of heat pump 2.
About about 80 ℃ of the flue gas of gas fired-boiler 6 enters boiler exhaust gas system 5, at first reclaims heat exchanger 1 through flue gas heat, passes through inlet air of boiler heat exchanger 3 again, after the secondary cooling, finishes flue gas energy recovery, discharges at last system; After new wind enters inlet air of boiler system 4, at first through entering gas fired-boiler after 3 preheatings of inlet air of boiler heat exchanger; After being transferred to heat pump 2 and promoting grade through pipe-line system 7, the heat that flue gas heat recovery heat exchanger 1 reclaims requires for other purposes.Flue gas reclaims heat exchanger 1 and inlet air of boiler heat exchanger 3 through flue gas heat, and the secondary temperature-fall period produces solidifying water, and these solidifying water are recyclable.

Claims (1)

1. two-period form gas fired-boiler smoke heat energy recovery system, comprise: gas fired-boiler (6), inlet air of boiler system (4) and boiler exhaust gas system (5), have additional inlet air of boiler heat exchanger (3) and flue gas heat in described boiler exhaust gas system (5) and the inlet air of boiler system (4) and reclaim heat exchanger (1), inlet air of boiler heat exchanger (3) adopts heat exchange of heat pipe, wherein the hot side of inlet air of boiler heat exchanger (3) is arranged in the boiler exhaust gas system (5), cold side is arranged in the inlet air of boiler system (4), flue gas heat recovery heat exchanger (1) is arranged near gas fired-boiler (6) and locates, inlet air of boiler heat exchanger (3) is arranged on away from gas fired-boiler (6) and locates, and the pipe-line system (7) that flue gas heat reclaims heat exchanger (1) is connected with the recirculated water of heat pump (2).
CN2012205851815U 2012-11-08 2012-11-08 Two-section type gas boiler flue gas heat recovery system Expired - Fee Related CN202915394U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012205851815U CN202915394U (en) 2012-11-08 2012-11-08 Two-section type gas boiler flue gas heat recovery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012205851815U CN202915394U (en) 2012-11-08 2012-11-08 Two-section type gas boiler flue gas heat recovery system

Publications (1)

Publication Number Publication Date
CN202915394U true CN202915394U (en) 2013-05-01

Family

ID=48163705

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012205851815U Expired - Fee Related CN202915394U (en) 2012-11-08 2012-11-08 Two-section type gas boiler flue gas heat recovery system

Country Status (1)

Country Link
CN (1) CN202915394U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102913941A (en) * 2012-11-08 2013-02-06 江苏双良新能源装备有限公司 Two-stage fuel gas boiler flue gas heat energy recovery system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102913941A (en) * 2012-11-08 2013-02-06 江苏双良新能源装备有限公司 Two-stage fuel gas boiler flue gas heat energy recovery system

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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

Granted publication date: 20130501

Termination date: 20201108

CF01 Termination of patent right due to non-payment of annual fee