CN101644507A - Process gas cooling system - Google Patents

Process gas cooling system Download PDF

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Publication number
CN101644507A
CN101644507A CN200910104657A CN200910104657A CN101644507A CN 101644507 A CN101644507 A CN 101644507A CN 200910104657 A CN200910104657 A CN 200910104657A CN 200910104657 A CN200910104657 A CN 200910104657A CN 101644507 A CN101644507 A CN 101644507A
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China
Prior art keywords
chilled water
heat exchanger
process gas
cooling
preparation facilities
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Pending
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CN200910104657A
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Chinese (zh)
Inventor
刘旭
喻依兆
王珂
王毅
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CISDI Engineering Co Ltd
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CISDI Engineering Co Ltd
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Priority to CN200910104657A priority Critical patent/CN101644507A/en
Publication of CN101644507A publication Critical patent/CN101644507A/en
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Abstract

The invention relates to a process gas cooling system, comprising a solar thermal collector (1), a thermal storage water tank (3), a chilled water preparation device (9) and a cooling heat exchanger (12), wherein the produced hot water in the solar thermal collector (1) enters the thermal storage water tank (3), so as to provide hot water required by the chilled water preparation device (9); the chilled water preparation device (9) provides the required chilled water for the cooling heat exchanger (12); and the cooling heat exchanger (12) carries out cooling on the entered process gas. The invention utilizes solar refrigeration technology, makes the best of renewable energy sources and saves steam or electric energy consumption required by conventional cooling device.

Description

A kind of process gas cooling system
Technical field
The present invention relates to a kind of cooling system of process gas, relate in particular to a kind of system that uses solar energy that process gas is lowered the temperature.
Background technology
In existing processes gas temperature-fall period, employing be compressor or steam-refrigerated technology, required like this electric energy is many, energy consumption is big, under big flow, higher atmospheric temperature condition during to process gas cooling, required energy consumption is huge especially.
As in the ironmaking field, in the blast furnace blower running, it is bigger that its required shaft power is influenced by atmospheric conditions, with 4000m 3Blast furnace blower is an example: in summer, suppose that daytime, mean temperature was 25 ℃, this moment, the air blast operate power was about 40000kW, and sooner or later and night mean temperature be assumed to 15 ℃, this moment, the air blast operate power was about 38800kW, and this moment, the air blast power consumption reduced about 3% than the daytime; At spring and autumn, suppose that daytime, mean temperature was 15 ℃, this moment, the air blast operate power was about 35000kW, and sooner or later and night mean temperature be assumed to 8 ℃, this moment, the air blast operate power was about 34000kW, this moment, the air blast power consumption reduced about 2.5% (above parameter is only to consider the air-breathing cooling of air blast, but does not reach the primary Calculation result under the atmospheric dew point condition) than the daytime.Under the situation that adopts dehumidified blast,, and finally can influence blast furnace stable operation because the air temperature variations at daytime and night is unfavorable to the stable operation of systems for moisture removal.
Summary of the invention
The purpose of this invention is to provide a kind of process gas cooling system that uses regenerative resource.
The objective of the invention is to realize by following mode:
A kind of process gas cooling system is characterized in that: described process gas cooling system comprises solar thermal collector, hot water storage tank, chilled water preparation facilities, cooling heat exchanger;
The hot water of the generation in the wherein said solar thermal collector enters hot water storage tank and provides required hot water for described chilled water preparation facilities; The chilled water preparation facilities provides required chilled water for described cooling heat exchanger; The cooling heat exchanger is lowered the temperature to the gas that enters.
The delivery port of described solar thermal collector connects the water inlet of described hot water storage tank by pipeline, the delivery port of described hot water storage tank is connected the hot water inlet of described chilled water preparation facilities by the pipeline that has water pump, and the hot water outlet of described chilled water preparation facilities is back to the water inlet of described solar thermal collector by pipeline;
Described chilled water preparation facilities connects the chilled water inlet and the chilled water outlet of described cooling heat exchanger by the pipeline that has water pump.
In order to utilize the waste heat of blower unit gas outlet fully, reduce solar radiation deficiency after a little while simultaneously, the gas outlet of described gas cooling system is connected to fan inlet by pipeline; The gas outlet of described air blast also is connected with auxilliary hot heater, and described auxilliary hot heater links to each other with the delivery port of solar thermal collector and the water inlet of hot water storage tank respectively by pipeline.
For process gas is further lowered the temperature and dehumidification, also be connected with secondary cooling dehumidifying device between the gas outlet of described cooling heat exchanger and the air blast, described secondary cooling dehumidifying device comprises secondary cooling moisture eliminator, secondary chilled water preparation facilities;
Described secondary chilled water preparation facilities provides required chilled water for secondary cooling heat exchanger, and described secondary chilled water preparation facilities connects the chilled water inlet and the chilled water outlet of secondary cooling heat exchanger by the pipeline that has water pump;
For the quality better gas is provided, the air inlet of described cooling heat exchanger also is connected with pneumatic filter.
The solar refrigeration technology of utilizing of the present invention has made full use of regenerative resource, can save and adopt under conventional steam or the electric energy cooling refrigeration situation about 30% energy consumption, also can save the driving power about 3% of air blast simultaneously.By the solar refrigeration technology, stablize the operation of the secondary cooling dehumidification of blast furnace blower in addition, guaranteed cooling and dehumidification effect, guaranteed the stable and energy-saving and production-increase of conditions of blast furnace.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, part (1) is a solar thermal collector, part (2) is auxilliary hot heater, part (3) is a hot water storage tank, part (4), (4 '), (5), (6), (7) are pipeline, part (8) is a water pump, and part (9) is the chilled water preparation facilities, and part (10) is a water pump, part (11), (11 ') are pipeline, part (12) is the cooling heat exchanger, and part (13) is secondary chilled water preparation facilities, and part (14) is a water pump, part (15), (15 ') are pipeline, part (16) is secondary cooling moisture eliminator, and part (17), (18) are pipeline, and part (19) is an air blast.
The specific embodiment
Below in conjunction with accompanying drawing inventive embodiment is described further.
The present invention can be suitable for air-breathing cooling of blast furnace blower and dehumidification, also can be used for the occasion (as the cooling of gas turbine blower intake air) of other process gas cooling dehumidification, process gas cooling under particularly big flow, the higher atmospheric temperature condition.Be example with the air-breathing cooling dehumidification of blast furnace blower below:
As shown in Figure 1, the delivery port of solar thermal collector 1 connects the water inlet of hot water storage tank 3 by pipeline 5,3 delivery ports of hot water storage tank are connected the hot water inlet of chilled water preparation facilities 9 by the pipeline 4 ' that has water pump 8, and the hot water outlet of chilled water preparation facilities 9 is back to the water inlet of solar thermal collector 1 by pipeline 4; Chilled water preparation facilities 9 connects the chilled water inlet and the chilled water outlet of cooling heat exchanger 12 by the pipeline 11,11 ' that has water pump 10.From air inlet enter the cooling heat exchanger 12 air through the cooling after, flow out in the gas outlet.
The air inlet of cooling heat exchanger 12 also is connected with pneumatic filter, and atmosphere is filtered.Also be connected with secondary heat sink between the gas outlet of cooling heat exchanger 12 and the air blast 19, secondary heat sink comprises secondary cooling moisture eliminator 16, secondary chilled water preparation facilities 13; Secondary chilled water preparation facilities 13 provides required chilled water for secondary cooling heat exchanger 16, and secondary chilled water preparation facilities 13 connects the chilled water inlet and the chilled water outlet of secondary cooling moisture eliminator 16 by the pipeline 15,15 ' that has water pump 14; Also be provided with cooling water inlet and outlet on the secondary chilled water preparation facilities 13.The gas outlet of blower unit also is connected with auxilliary hot heater 2, and auxilliary hot heater 2 links to each other with the delivery port of solar thermal collector 1 and the water inlet of hot water storage tank 3 respectively by pipeline 6,7.Wherein solar thermal collector (1) is flat plate collector or electron tubes type heat collector.Auxilliary heat exchanger 2 is shell-and-tube heat exchanger or dividing wall type heat exchanger.Chilled water preparation facilities 9 is spray type refrigerating system, absorption system or adsorption refrigeration system.Cooling heat exchanger 12, secondary cooling moisture eliminator 16 are dividing wall type heat exchanger.Chilled water preparation facilities 13 is compressor refrigeration system or steam-refrigerated system.
In the use, the hot water through chilled water preparation facilities 9 back temperature reduce enters solar thermal collector 1 by pipe fitting 4 and absorbs solar radiant energy production on daytime hot water, and hot water enters hot water storage tank 3 through pipe fitting 5.When solar radiation is not enough, the hot water that temperature reduces enters the auxilliary hot heater 2 that is arranged on the air blast exhaust pipeline section by pipe fitting 6, water after the heating enters hot water storage tank 3 by pipe fitting 7, reduces the hot-blast stove that supplies again toward the rear portion slightly through the air of assisting hot heater 2.The hot water for preparing is conducted to chilled water preparation facilities 9 by water pump 8, returns solar thermal collection system after finishing using.Use and so forth.
Enter chilled water preparation facilities 9 by heat-exchanger pump 8 for the hot water that comes, the cooling water that the chilled water preparation facilities needs is provided by the outside, 10 pressurizations enter cooling heat exchanger 12 to the chilled water for preparing through water pump, and the chilled water of finishing using is got back to the chilled water preparation system through piping 11 '.Enter cooling heat exchanger 12 through the pneumatic filter filtered air by pipeline, air themperature enters into secondary cooling moisture eliminator 16 through piping 17 after dropping to uniform temperature by atmospheric temperature again.By the chilled water that the secondary chilled water preparation facilities 13 of other energy (electric energy or steam etc.) driving is produced, 14 pressurizations enter secondary cooling moisture eliminator 16 through water pump, and the chilled water of finishing using is got back to secondary chilled water preparation facilities 13 through piping 15.Through the air of the first order cooling dehumidification of secondary cooling moisture eliminator 16 in, lowering the temperature, airborne part water recovery and through the demister removal, air humidity enters blast furnace blower 19 after dropping to and satisfying the iron-smelting process requirement.
The gas cooling system makes full use of solar radiation and the consistent characteristics of atmospheric temperature fluctuation in the present invention, morning and evening and nocturnal radiation are less, atmospheric temperature is lower simultaneously, the gas cooling system is out of service, solar radiation strengthens gradually when daytime, after atmospheric temperature also raises gradually, the gas cooling system puts into operation, utilize the solar refrigeration technology to lower the temperature for the first time to air blast is air-breathing, the atmospheric temperature level sooner or later that is controlled at that the air blast suction temperature is comparatively stable, stablized the load of secondary heat sink, reduced and utilized compressor or the needed electric energy of steam-refrigerated technology or other energy merely.After auxilliary hot heater 2 is set, under the not enough situation of solar radiation, the high-temperature hot air that hot water preparation utilizes air blast to discharge is warm as assisting, and prepares hot water in auxilliary hot heater 2, guarantee the temperature of hot water and the preparation of chilled water, thereby finally guarantee the air-breathing elementary cooling-down effect of air blast; When setting should not assisted hot heater 2, can reach total air-breathing cooling of air blast and dehumidification effect by the load proportion of adjustments of gas cooling system and secondary heat sink.In secondary heat sink, can adopt conventional electric energy or steam-refrigerated technology to produce chilled water, chilled water carries out secondary cooling and dehumidification to the air through first cooling.
On gas cooling system refrigeration cool-down basis, secondary chilled water preparation facilities 13 is set, and the chilled water of production carries out secondary cooling to air blast is air-breathing, in dehumidifying device inside, the moisture that gets off that condenses is collected by demister, makes the air water capacity that enters air blast reach reduced levels.Because of the gas cooling system adopts the solar refrigeration technology, make full use of regenerative resource, saved the required energy consumption of secondary cooling, saved the energy of part blower simultaneously, stablize the effect of the air-breathing cooling dehumidification of blast furnace blower, thereby finally guaranteed the stable and energy-saving and production-increase of conditions of blast furnace.
The intake air filter of air blast 19 can be a monoblock type with cooling heat exchanger 12, secondary cooling moisture eliminator 16, is three-in-one device---air filtration and cooling dehumidification composite set also can be split type.
The present invention can determine the form of solar heat collector 1 among the present invention and the Specifeca tion speeifications such as heat exchange area of area, refrigeration system chilled water temperature and lower the temperature heat exchanger 12, secondary cooling moisture eliminator 16 according to different regions meteorological condition, different blast furnace operating conditions in the engineering practical application.Can certainly a plurality of gas heat sinks of cascade, can reach a better effect to the gas cooling like this.This all is subjected to protection of the present invention.

Claims (11)

1, a kind of process gas cooling system is characterized in that: described process gas cooling system comprises solar thermal collector (1), hot water storage tank (3), chilled water preparation facilities (9), cooling heat exchanger (12);
The hot water of the generation in the wherein said solar thermal collector (1) enters hot water storage tank (3) and provides required hot water for described chilled water preparation facilities (9); Chilled water preparation facilities (9) provides required chilled water for described cooling heat exchanger (12); Cooling heat exchanger (12) is lowered the temperature to the gas that enters.
2, process gas cooling system according to claim 1, it is characterized in that: the delivery port of described solar thermal collector (1) connects the water inlet of described hot water storage tank (3) by pipeline (5), (3) delivery port of described hot water storage tank is connected the hot water inlet of described chilled water preparation facilities (9) by the pipeline (4 ') that has water pump (8), and the hot water outlet of described chilled water preparation facilities (9) is back to the water inlet of described solar thermal collector (1) by pipeline (4);
Described chilled water preparation facilities (9) connects the chilled water inlet and the chilled water outlet of described cooling heat exchanger (12) by the pipeline (11,11 ') that has water pump (10).
3, process gas cooling system as claimed in claim 2 is characterized in that: the gas outlet of described process gas cooling system is connected to air blast (19) air inlet by pipeline (17); The gas outlet of described air blast (19) also is connected with auxilliary hot heater (2), and described auxilliary hot heater (2) links to each other with the delivery port of solar thermal collector (1) and the water inlet of hot water storage tank (3) respectively by pipeline (6,7).
4, process gas cooling system as claimed in claim 3, it is characterized in that: also be connected with secondary cooling systems for moisture removal between the gas outlet of described cooling heat exchanger (12) and the air blast (19), described secondary cooling systems for moisture removal comprises secondary cooling moisture eliminator (16), secondary chilled water preparation facilities (13);
Described secondary chilled water preparation facilities (13) provides required chilled water for secondary cooling moisture eliminator (16), described secondary chilled water preparation facilities (13) connects the chilled water inlet and the chilled water outlet of secondary cooling moisture eliminator (16) by the pipeline (15,15 ') that has water pump (14).
5, process gas cooling system as claimed in claim 4 is characterized in that: described solar thermal collector (1) is flat plate collector or electron tubes type heat collector.
6, process gas cooling system as claimed in claim 4 is characterized in that: described auxilliary hot heater (2) is shell-and-tube heat exchanger or dividing wall type heat exchanger.
7, process gas cooling system as claimed in claim 4 is characterized in that: described chilled water preparation facilities (9) is spray type refrigerating system, absorption system or adsorption refrigeration system.
8, process gas cooling system as claimed in claim 4 is characterized in that: described cooling heat exchanger (12) and secondary cooling moisture eliminator (16) are dividing wall type heat exchanger.
9, process gas cooling system as claimed in claim 4 is characterized in that: described chilled water preparation facilities (13) is compressor refrigeration system or steam-refrigerated system.
10, process gas cooling system as claimed in claim 4 is characterized in that: the air inlet of described cooling heat exchanger (12) also is connected with pneumatic filter.
11, process gas cooling system as claimed in claim 10 is characterized in that: described cooling heat exchanger (12), pneumatic filter and secondary cooling moisture eliminator (16) are monoblock type or split type.
CN200910104657A 2009-08-20 2009-08-20 Process gas cooling system Pending CN101644507A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102226557A (en) * 2011-04-29 2011-10-26 中冶赛迪工程技术股份有限公司 Waste cold utilization based air-conditioning system capable of independent temperature-humidity control
CN106524571A (en) * 2016-10-21 2017-03-22 广州万宝集团有限公司 Solar energy and waste heat double-heat-source driven type adsorption refrigeration system
CN114843548A (en) * 2022-03-18 2022-08-02 武汉中极氢能产业创新中心有限公司 Integrated gas-gas heater and gas-gas cooling device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57139235A (en) * 1981-02-19 1982-08-28 Matsushita Electric Ind Co Ltd Cooler utilizing solar heat
CN86202037U (en) * 1986-04-08 1987-09-12 宁夏新技术应用研究所 Solar energy bathroom facilities with afterheat-utilizing device
CN87108120A (en) * 1986-12-15 1988-06-29 太阳追踪有限公司 Cooling device
CN101074453A (en) * 2006-09-13 2007-11-21 童裳慧 Efficient economical dust collecting method and dust collector for iron-smelting blast furnace
CN201016499Y (en) * 2007-02-07 2008-02-06 广东志高空调有限公司 Solar energy stepping utilization type air-conditioning system
CN201463402U (en) * 2009-08-20 2010-05-12 中冶赛迪工程技术股份有限公司 System for cooling process gas

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57139235A (en) * 1981-02-19 1982-08-28 Matsushita Electric Ind Co Ltd Cooler utilizing solar heat
CN86202037U (en) * 1986-04-08 1987-09-12 宁夏新技术应用研究所 Solar energy bathroom facilities with afterheat-utilizing device
CN87108120A (en) * 1986-12-15 1988-06-29 太阳追踪有限公司 Cooling device
CN101074453A (en) * 2006-09-13 2007-11-21 童裳慧 Efficient economical dust collecting method and dust collector for iron-smelting blast furnace
CN201016499Y (en) * 2007-02-07 2008-02-06 广东志高空调有限公司 Solar energy stepping utilization type air-conditioning system
CN201463402U (en) * 2009-08-20 2010-05-12 中冶赛迪工程技术股份有限公司 System for cooling process gas

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102226557A (en) * 2011-04-29 2011-10-26 中冶赛迪工程技术股份有限公司 Waste cold utilization based air-conditioning system capable of independent temperature-humidity control
CN102226557B (en) * 2011-04-29 2013-04-17 中冶赛迪工程技术股份有限公司 Waste cold utilization based air-conditioning system capable of realizing independent temperature-humidity control
CN106524571A (en) * 2016-10-21 2017-03-22 广州万宝集团有限公司 Solar energy and waste heat double-heat-source driven type adsorption refrigeration system
CN114843548A (en) * 2022-03-18 2022-08-02 武汉中极氢能产业创新中心有限公司 Integrated gas-gas heater and gas-gas cooling device
CN114843548B (en) * 2022-03-18 2024-05-17 武汉中极氢能产业创新中心有限公司 Integrated gas-gas heater and gas-gas cooling device

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Application publication date: 20100210