CN103673649A - Waste heat recovery and comprehensive utilization system of industrial furnace group - Google Patents
Waste heat recovery and comprehensive utilization system of industrial furnace group Download PDFInfo
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- CN103673649A CN103673649A CN201310685533.3A CN201310685533A CN103673649A CN 103673649 A CN103673649 A CN 103673649A CN 201310685533 A CN201310685533 A CN 201310685533A CN 103673649 A CN103673649 A CN 103673649A
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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
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Abstract
The invention discloses a waste heat recovery and comprehensive utilization system of an industrial furnace group. The waste heat recovery and comprehensive utilization system of the industrial furnace group comprises a heat collecting unit, a first heat exchange unit, a second heat exchange unit, a first heat supply unit and a second heat supply unit. The heat collecting units are formed by connecting multiple heat collecting subunits in parallel. Heat pipe heat exchangers in the heat collecting units are communicated with the same water collector inlet. A water collector outlet is communicated with a plate heat exchanger of the first heat exchange unit and a plate heat exchanger of the second heat exchange unit through pipelines. The plate heat exchanger of the first heat exchange unit and the plate heat exchanger of the second heat exchange unit are communicated with the same water distributor inlet, and the plate heat exchanger of the first heat exchange unit and the plate heat exchanger of the second heat exchange unit are communicated with a first heat storage tank and a second heat storage tank through circulating water pumps. The first heat storage tank is communicated with the first heat supply unit through a water pump, the second heat storage tank is communicated with a plate heat exchanger of the second heat supply unit through a circulating water pump, and the plate heat exchanger of the second heat supply unit is communicated with the second heat supply unit through a circulating water pump. According to the waste heat recovery and comprehensive utilization system of the industrial furnace group, comprehensive utilization of waste heat in the aspects of heat collecting and technology production is achieved, and recovery and utilization of the waste heat are balanced through heat storage and heat release.
Description
Technical field
The present invention relates to waste heat recovery utilization system, especially relate to industrial furnace group waste heat recovery utilization system.
Background technology
The industrial furnace group of scale cluster arrangement; as all kinds of, take combustion gas, fuel oil, fire coal etc. provides the equipment such as heat-treatment furnace, forge furnace, curing oven, sintering oven of thermal source as fuel by flame combustion, the high-temperature flue gas giving off when work contains a large amount of waste heats.The high-temperature flue gas heat recovery of above-mentioned industrial furnace group discharge is produced to hot water, and the hot water of institute's output is used in a unified manner or access, finally realizing hot water or heat energy in many-sided comprehensive utilizations such as life, production, heating, is the important channel of energy-saving and emission-reduction.But the industrial furnace group waste heat recovery of restriction scale cluster arrangement and the key issue of effectively utilizing, be the imbalance problem of waste heat recovery amount and UTILIZATION OF VESIDUAL HEAT IN amount.This imbalance is mainly reflected in waste heat recovery and UTILIZATION OF VESIDUAL HEAT IN not mating in time and amount, while being particularly used in the purposes such as production and heating when waste heat, the period that the period of waste heat recovery, often not necessarily waste heat need to be used, and waste heat recovery heat also large period of UTILIZATION OF VESIDUAL HEAT IN amount not necessarily often when large.
Summary of the invention
The object of the invention is to provide a kind of industrial furnace group waste heat recovery utilization system.
For achieving the above object, the present invention takes following technical proposals:
Industrial furnace group waste heat recovery utilization system of the present invention, comprises and adopts hot cell, first, second heat exchange unit, first, second heating unit; The described hot cell of adopting is composed in parallel by a plurality of heater unit of adopting; Described each adopt heater unit and include: many kilns, by pipe influx, zone of heat liberation, the air-introduced machine by heat exchange of heat pipe is connected with chimney the exhaust opening of described many kilns; Described each cold fluid pass outlet of adopting the heat exchange of heat pipe in hot cell is all communicated with same water collector import; Described water collector outlet is communicated with the plate type heat exchanger zone of heat liberation import of described first, second heat exchange unit respectively by pipeline, and the plate type heat exchanger zone of heat liberation outlet of first, second heat exchange unit is communicated with same water knockout drum import respectively by pipeline; Described water knockout drum outlet is communicated with a corresponding heat exchange of heat pipe cold fluid pass import of adopting heater unit by pipeline and water pump respectively; The plate type heat exchanger cold fluid pass of first, second heat exchange unit is communicated with first, second accumulation of heat pond by pipeline and water circulating pump respectively; Described the first accumulation of heat pond is communicated with focus by pipeline and water pump and described the first heating unit; Described the second accumulation of heat pond is communicated with the plate type heat exchanger zone of heat liberation of described the second heating unit by pipeline and water circulating pump, and the plate type heat exchanger cold fluid pass of the second heating unit is communicated with focus by water circulating pump and pipeline and described the second heating unit.
In described the second accumulation of heat pond, be provided with dividing plate pond body is divided into two sub-thermal storage tanks; The plate type heat exchanger cold fluid pass outlet of described the second heat exchange unit is communicated with the second sub-thermal storage tank and import is communicated with described the first sub-thermal storage tank by described water circulating pump; The plate type heat exchanger zone of heat liberation import of described the second heating unit is communicated with the second sub-thermal storage tank to export with the first sub-thermal storage tank by described water circulating pump and is communicated with.
Water circulating pump import in described the second heat exchange unit is communicated with soft water generator exports by pipeline; The water circulating pump import of described the first heat exchange unit is communicated with water source from the beginning by pipeline.
Described kiln is that combustion gas, fuel oil are or/and coal-fired flame kiln.
Advantage major embodiment of the present invention is in the following areas:
This feature of industrial furnace group of 1, arranging for extensive, many number of units, first stove group is divided into some groups, every group configures separately the facilities such as flue gas pipeline, heat exchange of heat pipe and air-introduced machine, form one can independent operating, realize recovery waste heat output hot water adopt heater unit; Respectively adopt heater unit by water collector, that water knockout drum carries out parallel connection is integrated, thereby complete the function of recovering waste heat to whole industrial furnace group; The hot water collecting, after water collector gathers, then according to by the demand in hot junction, is planned as a whole distribution to each purposes hot water, realizes using in a unified manner or storing up of hot water or heat energy.Be embodied as:
(1), can independent operating owing to respectively adopting thermal sub-system, making only has indivedual stoves to open and while having a small amount of waste heat to discharge as whole stove group, adopt the instant operation that also can adopt thermal sub-system by this stove place in heater unit and reclaim this part heat, adopt heat in time and flexibly.
(2) respectively adopt thermal sub-system integrated use in parallel, realized modularization and the maximization of whole system, recovery waste heat ability significantly promotes, and has met the larger demand with heat of explained hereafter, for waste heat provides guarantee in many-sided application such as productions.
(3) after the hot water gathering gathers, plan as a whole again to distribute to use or access, well balance each by the lack of uniformity between hot system (using focus), realized efficient, the multiduty comprehensive utilization of waste heat.
2, for the waste heat recovery of high-temperature flue gas, adopt the heat exchange of heat pipe of advanced technology, make to adopt hot tool and have the following advantages:
(1), heat exchanger effectiveness is high.
(2), anticorrosive power is strong.Because cigarette side pipe wall temperature is high, can effectively avoid the acid corrosion because of smoke condensation generation, service life of equipment is long.
(3), anti-blocking grey performance is good.Heat pipe heat exchanging fin shape adopts tooth punching shape, when airflow passes fin, can form turbulent flow, thereby alleviate cigarette ash, gathers.
(4), security performance is good.Air-water dual resisteance, flue gas and heated water are without cross pollution, even if single heat pipe damages, whole flue gas waste heat recovery still can normally be worked.
3, the thermal storage tank with reasonable heat storage capacity is set.The setting in the first accumulation of heat pond (low-temperature water heating), the second accumulation of heat pond (high-temperature-hot-water), hot water for life and production are separated with hot water, by storage or saving and the release of heat, the recovery of balance waste heat and utilization, make system there is better anti-fluctuation and practicality, realize waste heat in many-sided comprehensive utilizations such as heating, explained hereafter.Stored hot water or cold water's volume change realization is passed through to the storage or saving of hot water (or heat energy) or for getting in the second accumulation of heat pond, guarantees that the hot water temperature who confesses is relatively constant.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention.
The specific embodiment
As shown in Figure 1, industrial furnace group waste heat recovery utilization system of the present invention, comprises and adopts hot cell, first, second heat exchange unit 1,2, first, second heating unit 3,4; The described hot cell of adopting is composed in parallel by a plurality of heater unit 5 of adopting; Described each adopt heater unit 5 include many take combustion gas, fuel oil or/and coal-fired be the flame kiln 6 of raw material, the exhaust opening of described many kilns 6 is connected with chimney 9 by heat exchange of heat pipe 7 zone of heat liberation, air-introduced machine 8 by pipe influx; Described each heat exchange of heat pipe 7 cold fluid pass outlet of adopting in hot cell 5 are all communicated with same water collector 10 imports; Described water collector 10 outlets are communicated with plate type heat exchanger 11, the 12 zone of heat liberation imports of described first, second heat exchange unit 1,2 respectively by pipeline, and plate type heat exchanger 11, the 12 zone of heat liberation outlets of first, second heat exchange unit 1,2 are communicated with same water knockout drum 13 imports respectively by pipeline; Described water knockout drum 13 outlets are communicated with corresponding heat exchange of heat pipe 7 cold fluid pass imports of adopting heater unit 5 by pipeline and water pump 14 respectively; Plate type heat exchanger 11,12 cold fluid pass of first, second heat exchange unit 1,2 are communicated with first, second accumulation of heat pond 17,18 by pipeline and water circulating pump 15,16 respectively; Described the first accumulation of heat pond 17 is communicated with focus 20 by pipeline and water pump 19 and described the first heating unit 3; Described the second accumulation of heat pond 18 is communicated with plate type heat exchanger 22 zone of heat liberation of described the second heating unit 4 by pipeline and water circulating pump 21, and plate type heat exchanger 22 cold fluid pass of the second heating unit 4 are communicated with focus 24 by water circulating pump 23 and pipeline and described the second heating unit 4.
In the second accumulation of heat pond 18, be provided with dividing plate 25 pond body is divided into two sub-thermal storage tanks 26,27; The plate type heat exchanger 12 cold fluid pass outlets of the second heat exchange unit 2 are communicated with the second sub-thermal storage tank 27 and import is passed through described water circulating pump 16 and is communicated with the first sub-thermal storage tank 26; The plate type heat exchanger 22 zone of heat liberation imports of the second heating unit 4 are communicated with the second sub-thermal storage tank 27 to export with the first sub-thermal storage tank 26 by described water circulating pump 21 and are communicated with.For meeting the needs of industrial heat water conservancy project skill, water circulating pump 16 imports of the second heat exchange unit 2 are communicated with 28 outlets of soft water generator by pipeline; Water circulating pump 15 imports of the first heat exchange unit 1 are communicated with for moisturizing with water source 29 from the beginning by pipeline.
Claims (4)
1. an industrial furnace group waste heat recovery utilization system, comprises and adopts hot cell, first, second heat exchange unit (1,2), first, second heating unit (3,4); It is characterized in that: described in adopt hot cell and composed in parallel by a plurality of heater unit (5) of adopting; Described each adopt heater unit (5) and include: many kilns (6), the exhaust opening of described many kilns (6) is connected with chimney (9) by heat exchange of heat pipe (7) zone of heat liberation, air-introduced machine (8) by pipe influx; Described each heat exchange of heat pipe (7) cold fluid pass outlet of adopting in hot cell (5) is all communicated with same water collector (10) import; Described water collector (10) outlet is communicated with plate type heat exchanger (11,12) the zone of heat liberation import of described first, second heat exchange unit (1,2) respectively by pipeline, and plate type heat exchanger (11,12) the zone of heat liberation outlet of first, second heat exchange unit (1,2) is communicated with same water knockout drum (13) import respectively by pipeline; Described water knockout drum (13) outlet is communicated with corresponding heat exchange of heat pipe (7) cold fluid pass import of adopting heater unit (5) by pipeline and water pump (14) respectively; Plate type heat exchanger (11, the 12) cold fluid pass of first, second heat exchange unit (1,2) is communicated with first, second accumulation of heat pond (17,18) by pipeline and water circulating pump (15,16) respectively; Described the first accumulation of heat pond (17) is communicated with focus (20) by pipeline and water pump (19) and described the first heating unit (3); Described the second accumulation of heat pond (18) is communicated with plate type heat exchanger (22) zone of heat liberation of described the second heating unit (4) by pipeline and water circulating pump (21), and plate type heat exchanger (22) cold fluid pass of the second heating unit (4) is communicated with focus (24) by water circulating pump (23) and pipeline and described the second heating unit (4).
2. industrial furnace group waste heat recovery utilization system according to claim 1, is characterized in that: in described the second accumulation of heat pond (18), be provided with dividing plate (25) pond body is divided into two sub-accumulation of heat ponds (26,27); Plate type heat exchanger (12) the cold fluid pass outlet of described the second heat exchange unit (2) is communicated with the second sub-thermal storage tank (27) and import is passed through described water circulating pump (16) and is communicated with described the first sub-thermal storage tank (26); Plate type heat exchanger (22) the zone of heat liberation import of described the second heating unit (4) is communicated with the second sub-thermal storage tank (27) to export with the first sub-thermal storage tank (26) by described water circulating pump (21) and is communicated with.
3. industrial furnace group waste heat recovery utilization system according to claim 1 and 2, is characterized in that: water circulating pump (16) import of described the second heat exchange unit (2) is communicated with soft water generator (28) outlet by pipeline; Water circulating pump (15) import of described the first heat exchange unit (1) is communicated with water source (29) from the beginning by pipeline.
4. industrial furnace group waste heat recovery utilization system according to claim 1 and 2, is characterized in that: described kiln (6) is for combustion gas, fuel oil are or/and coal-fired flame kiln.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917415A (en) * | 2018-08-08 | 2018-11-30 | 北京京诚科林环保科技有限公司 | Discontinuous heat source hot water heat accumulation utilization system |
| CN111076599A (en) * | 2018-10-22 | 2020-04-28 | 株式会社捷太格特 | Heat recovery system |
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| CN202494345U (en) * | 2012-03-15 | 2012-10-17 | 机械工业第六设计研究院有限公司 | Industrial furnace waste heat recovery system |
| JP2013139959A (en) * | 2012-01-04 | 2013-07-18 | Chugai Ro Co Ltd | Heat utilization method and heating apparatus using the same |
| CN203687649U (en) * | 2013-12-16 | 2014-07-02 | 机械工业第六设计研究院有限公司 | Industrial furnace group waste heat recovery and comprehensive utilization system |
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- 2013-12-16 CN CN201310685533.3A patent/CN103673649B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201852429U (en) * | 2010-10-22 | 2011-06-01 | 滕州市科利机电有限公司 | Water heating system utilizing rotary kiln waste heat |
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| JP2013139959A (en) * | 2012-01-04 | 2013-07-18 | Chugai Ro Co Ltd | Heat utilization method and heating apparatus using the same |
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| CN203687649U (en) * | 2013-12-16 | 2014-07-02 | 机械工业第六设计研究院有限公司 | Industrial furnace group waste heat recovery and comprehensive utilization system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917415A (en) * | 2018-08-08 | 2018-11-30 | 北京京诚科林环保科技有限公司 | Discontinuous heat source hot water heat accumulation utilization system |
| CN108917415B (en) * | 2018-08-08 | 2024-03-19 | 北京京诚科林环保科技有限公司 | Intermittent heat source hot water heat storage comprehensive utilization system |
| CN111076599A (en) * | 2018-10-22 | 2020-04-28 | 株式会社捷太格特 | Heat recovery system |
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