CN103807865B - With the gas fired-boiler smoke heat energy recovery system of spray chamber two-part - Google Patents

With the gas fired-boiler smoke heat energy recovery system of spray chamber two-part Download PDF

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Publication number
CN103807865B
CN103807865B CN201410066516.6A CN201410066516A CN103807865B CN 103807865 B CN103807865 B CN 103807865B CN 201410066516 A CN201410066516 A CN 201410066516A CN 103807865 B CN103807865 B CN 103807865B
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spray chamber
improving quality
regenerating device
absorption energy
energy regenerating
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CN103807865A (en
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江荣方
王军
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SHUANGLIANG NEW ENERGY EQUIPMENT CO Ltd
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SHUANGLIANG NEW ENERGY EQUIPMENT CO Ltd
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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

The present invention relates to a kind of gas fired-boiler smoke heat energy recovery system with spray chamber two-part, it is characterized in that it comprises boiler chimney (1), air blast (2), primary heat exchanger (3), spray chamber (4) and absorption energy regenerating device for improving quality (5), the smoke evacuation of described boiler chimney (1) is discharged through air blast (2), primary heat exchanger (3), spray chamber (4) and absorption energy regenerating device for improving quality (5) successively.The gas fired-boiler smoke heat energy recovery system of this band spray chamber two-part has the advantage that energy recovery efficiency is high, save operating cost, and reclaimed part of waste heat due to primary heat exchanger, the heat entering absorption energy regenerating device for improving quality reduces, and absorption energy regenerating device for improving quality and relevant weight of equipment thereof, floor space, cost all can reduce.

Description

With the gas fired-boiler smoke heat energy recovery system of spray chamber two-part
Technical field
The present invention relates to a kind of gas fired-boiler smoke heat energy recovery system with spray chamber two-part, the energy-saving and emission-reduction for boiler or similar industry are transformed.
Background technology
With wideling popularize of national energy-saving environmental protection policy regulation, gas fired-boiler has the trend replacing coal-burning boiler, oil burning boiler gradually in a lot of industry.Main cause is, coal and oil produce a large amount of dust when burning, and burning produces a large amount of sour gas and forms Acid rain damages environment.Compare with oil with coal, natural gas is a kind of clean energy resource, and sufficient combustion, produces dust hardly; Natural gas has acid gas removal link in process of production, so the content of acid gas in natural gas is extremely low, acid gas-containing hardly in boiler exhaust gas, does not destroy environment.
Because the smoke evacuation of gas fired-boiler is very clean, so the waste heat reclaiming gas fired-boiler smoke evacuation is convenient.But, containing the steam of about 18% in gas fired-boiler smoke evacuation, discharge a large amount of latent heat in the condensation of worst cold case steam, this latent heat amount is huge, to such an extent as to the simple preboiler air intake that relies on cannot reclaim it completely, this just needs to adopt new scheme and technology fully to reclaim this waste heat.
From the flue gas of gas fired-boiler generally at 80 DEG C about-150 DEG C, flue gas water content (V/V) about 16.4%, far do not reach capacity temperature, that is, the flue gas from gas fired-boiler was heat smoke.Cross heat smoke not solidifying water when heat exchange, the coefficient of heat transfer is very little, general by finned tube augmentation of heat transfer, but the cost of the increase equipment of fin own, also increase the windage of equipment.The patent No. is the absorption energy regenerating device for improving quality defect that weight is large, floor space is large and cost is high that there is corollary system of 201220637050.7.
A kind of gas fired-boiler smoke heat energy recovery system with spray chamber two-part that this patent proposes fundamentally solves an above-mentioned difficult problem.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, the gas fired-boiler smoke heat energy recovery system that a kind of energy recovery efficiency is high, save the band spray chamber two-part of operating cost is provided.
The object of the present invention is achieved like this:
A kind of gas fired-boiler smoke heat energy recovery system with spray chamber two-part, it comprises boiler chimney, air blast, primary heat exchanger, spray chamber and absorption energy regenerating device for improving quality, and the smoke evacuation of described boiler chimney is discharged through air blast, primary heat exchanger, spray chamber and absorption energy regenerating device for improving quality successively.
This system also comprises cooling pump and solidifying water surge tank, and the solidifying water of described absorption energy regenerating device for improving quality leads to solidifying water surge tank, and described solidifying water surge tank is drawn a road flue gas condensed water and is pumped to spray chamber by cooling.
This system also comprises heating network water return pipeline, and then described heating network water return pipeline is back to heating network by absorption energy regenerating device for improving quality and primary heat exchanger or is gone to boiler successively.
Compared with prior art, the invention has the beneficial effects as follows:
Gas fired-boiler smoke heat energy recovery system with spray chamber two-part has reclaimed huge latent heat in gas fired-boiler smoke evacuation and sensible heat, and the high-temperature flue gas of more than 60 DEG C is used for heating pipe network hot water, the waste heat of direct recovered flue gas.Fume afterheat has reclaimed a part in primary heat exchanger, and the heat entering absorption energy regenerating device for improving quality reduces, the weight of absorption energy regenerating device for improving quality and corollary system thereof, floor space and cost reduction; The flue gas of less than 60 DEG C as the thermal source of absorption energy regenerating device for improving quality, by heating pipe network hot water after upgrading intensification degree; Solidifying water is produced in flue gas cool-down process, solidifying water is coagulated after water surge tank is collected sends into spray chamber by a cooling pump extraction part, the heat smoke flow through heat exchange after the saturation temperature about water spray moistening and lowering temperature to 58 DEG C just increases the coefficient of heat transfer of absorption energy regenerating device for improving quality, decrease heat exchange area and the windage of absorption energy regenerating device for improving quality, reduce system initial cost and operating cost.The gas fired-boiler smoke heat energy recovery system of this band spray chamber two-part has the advantage that energy recovery efficiency is high, save operating cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the gas fired-boiler smoke heat energy recovery system of band spray chamber two-part of the present invention.
Wherein:
Boiler chimney 1, air blast 2, primary heat exchanger 3, spray chamber 4, absorption energy regenerating device for improving quality 5, cooling pump 6, solidifying water surge tank 7, heating network water return pipeline 8.
Detailed description of the invention
See Fig. 1, a kind of gas fired-boiler smoke heat energy recovery system with spray chamber two-part that the present invention relates to, it comprises boiler chimney 1, air blast 2, primary heat exchanger 3, spray chamber 4, absorption energy regenerating device for improving quality 5, cooling pump 6, solidifying water surge tank 7 and heating network water return pipeline 8, the smoke evacuation of described boiler chimney 1 is successively through air blast 2, primary heat exchanger 3, spray chamber 4 and absorption energy regenerating device for improving quality 5 discharge, the solidifying water of described absorption energy regenerating device for improving quality 5 leads to solidifying water surge tank 7, described solidifying water surge tank 7 is drawn a road flue gas condensed water and is delivered to spray chamber 4 by pump 6 of lowering the temperature, then heating network water return pipeline 8 is back to heating network by absorption energy regenerating device for improving quality 5 and primary heat exchanger 3 or is gone to boiler successively.
Operation principle:
The smoke evacuation of described boiler chimney 1 extracts a part out through air blast 2, first smoke evacuation is down to about 60 DEG C through primary heat exchanger 3 temperature, reclaim a part of waste heat, be used for heating pipe network hot water, so, the heat entering absorption energy regenerating device for improving quality 5 reduces, the weight of absorption energy regenerating device for improving quality 5 and corollary system thereof, floor space and cost reduction.Then the smoke evacuation of 60 DEG C becomes saturated flue gas after spray chamber 4, its energy by the circulating water reclamation of absorption energy regenerating device for improving quality 5, then after the upgrading of absorption energy regenerating device for improving quality 5 heating pipe network backwater, heat is recovered utilization.Flue gas is when flowing through absorption energy regenerating device for improving quality 5, and temperature reduces and has a large amount of solidifying water to produce, and solidifying water is collected in solidifying water surge tank 7.From solidifying water surge tank 7, drawing a road flue gas condensed water delivering to spray chamber 4 to crossing heat smoke spray cooling by pump 6 of lowering the temperature, flue gas enters the heat exchange of absorption energy regenerating device for improving quality 5 again after becoming saturated gas can increase the coefficient of heat transfer, subtract the heat exchange area of absorption energy regenerating device for improving quality 5, reduce SR, reduce initial cost and SR.

Claims (1)

1. the gas fired-boiler smoke heat energy recovery system with spray chamber two-part, it is characterized in that it comprises boiler chimney (1), air blast (2), primary heat exchanger (3), spray chamber (4) and absorption energy regenerating device for improving quality (5), the smoke evacuation of described boiler chimney (1) is successively through air blast (2), primary heat exchanger (3), spray chamber (4) and absorption energy regenerating device for improving quality (5) discharge, this system also comprises cooling pump (6) and solidifying water surge tank (7), the solidifying water of described absorption energy regenerating device for improving quality (5) leads to solidifying water surge tank (7), described solidifying water surge tank (7) is drawn a road flue gas condensed water and is delivered to spray chamber (4) by pump of lowering the temperature (6), this system also comprises heating network water return pipeline (8), described heating network water return pipeline (8) is then back to heating network by absorption energy regenerating device for improving quality (5) and primary heat exchanger (3) or is gone to boiler successively, the smoke evacuation of described boiler chimney (1) extracts a part out through air blast (2), first smoke evacuation is down to 60 DEG C through primary heat exchanger (3) temperature, reclaim a part of waste heat, be used for heating pipe network hot water, then smoke evacuation becomes saturated flue gas after spray chamber (4), its energy is by the circulating water reclamation of absorption energy regenerating device for improving quality (5), heating pipe network backwater after the upgrading of absorption energy regenerating device for improving quality (5) again, flue gas is when flowing through absorption energy regenerating device for improving quality (5), temperature reduces and has a large amount of solidifying water to produce, solidifying water is collected in solidifying water surge tank (7), from solidifying water surge tank (7), drawing a road flue gas condensed water delivering to spray chamber (4) to crossing heat smoke spray cooling by pump of lowering the temperature (6).
CN201410066516.6A 2014-02-27 2014-02-27 With the gas fired-boiler smoke heat energy recovery system of spray chamber two-part Active CN103807865B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104110841A (en) * 2014-07-22 2014-10-22 江苏双良锅炉有限公司 Water boiler system realizing condensation via direct-combustion type lithium bromide heat pump
CN104110842A (en) * 2014-07-22 2014-10-22 江苏双良锅炉有限公司 Water boiler system realizing condensation via a smoke type lithium bromide heat pump

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* Cited by examiner, † Cited by third party
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JP5302597B2 (en) * 2008-08-21 2013-10-02 株式会社タクマ Exhaust gas treatment apparatus and exhaust gas treatment method
CN201844707U (en) * 2010-06-02 2011-05-25 北京兆泰新能源有限公司 Waste heat recovery device and waste heat recovery system of gas stove
CN203010920U (en) * 2012-10-22 2013-06-19 朱杰 Flue gas waste heat recovery device with combination of spraying condensing and high temperature water source heat pump
CN102927550A (en) * 2012-11-08 2013-02-13 江苏双良新能源装备有限公司 System for recovering smoke and heat energy of three-section gas-fired boiler
CN202993661U (en) * 2012-11-28 2013-06-12 江荣方 Absorption type energy recovery and quality improving device
CN202947153U (en) * 2012-12-01 2013-05-22 江苏双良新能源装备有限公司 Gas-fired boiler flue gas heat energy recovery system with water spraying chamber
CN203718813U (en) * 2014-02-27 2014-07-16 江苏双良新能源装备有限公司 Two-section boiler flue gas heat recovery system with water spraying chamber

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