CN204359153U - Blast furnace slag quenching water utilizing waste heat for refrigeration system - Google Patents
Blast furnace slag quenching water utilizing waste heat for refrigeration system Download PDFInfo
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- CN204359153U CN204359153U CN201420868969.6U CN201420868969U CN204359153U CN 204359153 U CN204359153 U CN 204359153U CN 201420868969 U CN201420868969 U CN 201420868969U CN 204359153 U CN204359153 U CN 204359153U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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Abstract
The utility model is a kind of blast furnace slag quenching water utilizing waste heat for refrigeration system, comprises water pump, blast furnace slag flushing water treatment facilities, blast furnace slag flushing water heat accumulation apparatus, hot water type lithium bromide absorption cooling water unit.Blast furnace slag flushing water treatment facilities, blast furnace slag flushing water heat accumulation apparatus and hot water type lithium bromide absorption cooling water unit are connected by pipeline successively; Wherein, blast furnace slag flushing water heat accumulation apparatus is positioned at the top of hot water type lithium bromide absorption cooling water unit; The water inlet end of water pump connects hot-tub by pipeline, and the water side of water pump connects the water inlet end of blast furnace slag flushing water treatment facilities by pipeline; The water side of hot water type lithium bromide absorption cooling water unit connects water cooling pond by pipeline.The utility model can directly utilize blast furnace slag quenching water waste heat to produce chilled water, can the annual waste heat reclaiming blast furnace slag quenching water.
Description
Technical field
The utility model is the waste heat recycling system about a kind of blast furnace slag quenching water, particularly relates to a kind of blast furnace slag quenching water utilizing waste heat for refrigeration system.
Background technology
There is a large amount of blast furnace slag quenching water in steel plant, the heat loss of washing slag water in an atmosphere, not only causes atmospheric heat to pollute, and also increases blast furnace slag quenching water rate of water make-up.For blast furnace slag flushing system, water pump and cooling tower power consumption also can be increased.Meanwhile, one of residual heat resources important in blast furnace slag quenching water Ye Shi steel mill, different according to blast furnace slag flushing technique, washing slag water temperature generally at 60 ~ 80 DEG C, can reach as high as 90 DEG C summer.Along with going deep into of energy-saving and emission-reduction work, using exhaust heat of slag flushing water has had in some enterprises more successfully to be applied, comprise and utilize washing slag water heating, heating water at low temperature etc., but from the whole year, washing slag water effective rate of utilization is still very low, for Beijing-tianjin-hebei Region, the whole year, only about 1/3rd times utilized, all the other all lose discharge, both waste energy, and pollute surrounding enviroment again.
At present, reclaim successful story about using exhaust heat of slag flushing water, only have some areas to be used for winter heating, but heating cycle is very short, waste heat recovery volume is limited.In summer, yet there are no the engineering practice of recycling using exhaust heat of slag flushing water.A few thing person also attempts to utilize using exhaust heat of slag flushing water to produce chilled water, finally only rests on theoretical research stage, mainly because the water quality index of washing slag water is defective, once directly enter chiller unit, certainly will cause equipment blocking, fouling at short notice; Secondly, the water temperature of washing slag water is unstable, if do not taken measures, unit performance will certainly be made to decline, finally cause unit to lose efficacy.As can be seen here, if want to utilize using exhaust heat of slag flushing water in annual high efficiente callback, rely on existing technology to be difficult to solve, urgently propose a set of novel waste heat recycling system.
Thus, the present inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes a kind of blast furnace slag quenching water utilizing waste heat for refrigeration system, to overcome the defect of prior art.
Utility model content
The purpose of this utility model is to provide a kind of blast furnace slag quenching water utilizing waste heat for refrigeration system, solves in prior art and can not directly utilize blast furnace slag quenching water waste heat to produce freezing water problem, can the annual waste heat reclaiming blast furnace slag quenching water.
Another object of the present utility model is to provide a kind of blast furnace slag quenching water utilizing waste heat for refrigeration system, and avoid the problem that water at low temperature poor quality is brought, heat exchange efficiency is high, maintenance is convenient.
Another object of the present utility model is to provide a kind of blast furnace slag quenching water utilizing waste heat for refrigeration system, eliminates blast furnace slag quenching water interruption flushing cinder and causes washing slag water temperature fluctuation on the impact of heat user.
The purpose of this utility model realizes like this, a kind of blast furnace slag quenching water utilizing waste heat for refrigeration system, comprise water pump, blast furnace slag flushing water treatment facilities, described blast furnace slag quenching water utilizing waste heat for refrigeration system also comprises blast furnace slag flushing water heat accumulation apparatus, hot water type lithium bromide absorption cooling water unit; Described blast furnace slag flushing water treatment facilities, blast furnace slag flushing water heat accumulation apparatus and hot water type lithium bromide absorption cooling water unit are connected by pipeline successively; Wherein, blast furnace slag flushing water heat accumulation apparatus is positioned at the top of hot water type lithium bromide absorption cooling water unit; The water inlet end of described water pump connects hot-tub by pipeline, and the water side of water pump connects the water inlet end of blast furnace slag flushing water treatment facilities by pipeline; The water side of hot water type lithium bromide absorption cooling water unit connects water cooling pond by pipeline.
In a better embodiment of the present utility model, hot water type lithium bromide absorption cooling water unit, comprises high pressure flash generator, low pressure flash generator, low pressure absorption evaporimeter, first and second liang of group volumetric heat exchangers; Described volumetric heat exchanger is a closed container, which is provided with hot water entrance, and hot water entrance forms water inlet end and water side respectively, and described water inlet end is connected with blast furnace slag flushing water heat accumulation apparatus by pipeline, and described water side is connected to water cooling pond by pipeline; Described volumetric heat exchanger inner disc is arranged with heat exchange pipeline, and heat exchange pipeline is formed with solution and imports and exports on volumetric heat exchanger; Described high pressure flash generator is made up of high-pressure flash chamber and condensation chamber; Low pressure flash generator is made up of low pressure flash chamber and high pressure absorption chamber; The first and second cooling water coils are respectively equipped with in described condensation chamber and high pressure absorption chamber; The heat exchange pipeline of the first volumetric heat exchanger respectively with the first pipeline connection of described high-pressure flash chamber and a hp heat exchanger; The heat exchange pipeline of the second volumetric heat exchanger respectively with the first pipeline connection of described low pressure flash chamber and a low pressure heat exchanger.
In a better embodiment of the present utility model, high pressure flash generator and low pressure flash generator are arranged in same container, the first dividing plate is provided with in this container, internal tank sealed separation is the first mutually isolated cavity and the second cavity by described first dividing plate, described first cavity is positioned at the second cavity top, first cavity forms described high pressure flash generator, and the second cavity forms described low pressure flash generator; Be provided with second partition in first cavity, second partition top is provided with passage, and the first cavity is divided into two spaces be communicated with by this second partition, and second partition side forms described high-pressure flash chamber, and opposite side forms described condensation chamber; Be provided with the 3rd dividing plate in second cavity, the 3rd dividing plate top is provided with passage, and the second cavity is divided into two spaces be communicated with by the 3rd dividing plate, and the 3rd dividing plate side forms described low pressure flash chamber, and opposite side forms described high pressure absorption chamber.
In a better embodiment of the present utility model, hot water type lithium bromide absorption cooling water unit is also provided with volumetric heat exchanger for subsequent use, the heat exchange pipeline of described volumetric heat exchanger for subsequent use is formed with the heat exchange pipeline of first, second volumetric heat exchanger respectively and is connected in parallel, and is controlled by valve control system.
In a better embodiment of the present utility model, it is a container that low pressure absorbs evaporimeter, and be provided with the 4th dividing plate in this container, internal tank is divided into two spaces be interconnected by described 4th dividing plate, 4th dividing plate side forms vaporization chamber, and opposite side forms low pressure absorption chamber; Be provided with the 3rd cooling water coil in described low pressure absorption chamber, in described vaporization chamber, be provided with chilled water coil pipe.
In a better embodiment of the present utility model, high pressure absorption chamber and low pressure absorption chamber bottom are equipped with concentrated solution capsule and weak solution capsule; The weak solution capsule of high pressure absorption chamber connects the first pipeline of high pressure generator pump and hp heat exchanger successively by pipeline; The concentrated solution capsule of high pressure absorption chamber connects high pressure absorber pump and high pressure absorption chamber successively by pipeline; High-pressure flash chamber is connected with the second pipeline of hp heat exchanger, high pressure absorber pump successively by pipeline; The weak solution capsule of low pressure absorption chamber is connected with the first pipeline of low pressure generator pump and low pressure heat exchanger successively by pipeline; The concentrated solution capsule of low pressure absorption chamber connects low-pressure absorber pump and low pressure absorption chamber successively by pipeline; Low pressure flash chamber connects the second pipeline and the low-pressure absorber pump of low pressure heat exchanger successively by pipeline; Described vaporization chamber connects evaporimeter pump successively by pipeline and connects back vaporization chamber; Described condensation chamber is communicated with vaporization chamber by pipeline, and this pipeline is provided with choke valve.
In a better embodiment of the present utility model, high pressure flash generator, low pressure flash generator and low pressure absorb evaporimeter and are connected with vavuum pump respectively by vacuum-pumping pipeline.
In a better embodiment of the present utility model, hot water type lithium bromide absorption cooling water unit all adopts Flash Type generator, in high-low pressure flash chamber, high-low pressure absorption chamber and vaporization chamber, be provided with shower nozzle or jet pipe.
In a better embodiment of the present utility model, blast furnace slag flushing water heat accumulation apparatus comprises a regenerative apparatus body, and described regenerative apparatus body is provided with a water inlet and a delivery port; Described water inlet connects the delivery port of blast furnace slag flushing water treatment facilities by inlet pipeline; Described inlet pipeline is provided with the first controlled valve, inlet pipeline is also provided with a water inlet and regulates bypass, and described water inlet regulates bypass to pulp water process system, and water inlet regulates bypass to be provided with second switch valve; The delivery port of described regenerative apparatus body connects outlet pipeline, and outlet pipeline is provided with out water regulating valve group; Regenerative apparatus body also connects a Heat preservation system, in regenerative apparatus body, be provided with flow-disturbing dividing plate.
In a better embodiment of the present utility model, Heat preservation system comprises a vapour source, this vapour source is connected to regenerative apparatus body interior by steam pipework, and steam pipework is provided with the 3rd controlled valve, and the steam pipework being positioned at regenerative apparatus body interior is provided with steam jet.
In a better embodiment of the present utility model, the water regulating valve group that goes out on outlet pipeline is the 4th controlled valve; The automatic switch valve that described first to fourth controlled valve is hand switch valve or is controlled by valve control system.
In a better embodiment of the present utility model, regenerative apparatus body is rectangular box, and water inlet is arranged on the side at casing top, and delivery port is arranged on the lower box of the opposite side relative with water inlet; Flow-disturbing dividing plate is multiple, and multiple flow-disturbing dividing plate is vertically arranged in the casing between water inlet and delivery port, forms multiple runner be interconnected in regenerative apparatus body.
In a better embodiment of the present utility model, in multiple flow-disturbing dividing plate, be the first flow-disturbing dividing plate from the flow-disturbing dividing plate that water inlet is nearest, the top of the first flow-disturbing dividing plate upper end and regenerative apparatus body is fixed, and the both sides, lower end of the first flow-disturbing dividing plate are interconnected; Adjacent with the first flow-disturbing dividing plate is the second flow-disturbing dividing plate, and the lower end of the second flow-disturbing dividing plate and the bottom of regenerative apparatus body are fixed, and the both sides, upper end of the second flow-disturbing dividing plate are interconnected; The like, the set-up mode of odd number flow-disturbing dividing plate is identical with the first flow-disturbing dividing plate, and the set-up mode of even number flow-disturbing dividing plate is identical with the second flow-disturbing dividing plate.
From the above mentioned, the utility model can directly utilize the waste heat of blast furnace slag quenching water to produce chilled water, not only can reclaim the waste heat of blast furnace slag quenching water the whole year, can also solve other techniques as technological requirements such as coking, gold smelting furnac$ cooling, dehumidifying.Also may be used for the low-temperature water heating waste heat recovery in the field such as oil, chemical industry, also meet the demand of above-mentioned field to chilled water simultaneously, reach the object of waste heat recycling.The problem that the utility model can avoid water at low temperature poor quality to bring, also have heat exchange efficiency high, overhaul advantage easily, and washing slag water can be eliminated in blast furnace slag flushing technique be interrupted flushing cinder and cause slag water temperature fluctuation on the impact of heat user.The ability of regenerative apparatus is mated with heat user, meets heat user and uses heat demand continuously.
Accompanying drawing explanation
The following drawings is only intended to schematically illustrate the utility model and explain, does not limit scope of the present utility model.Wherein:
Fig. 1: be the layout drawing of the utility model blast furnace slag quenching water utilizing waste heat for refrigeration system.
Fig. 2: be the schematic diagram of hot water type lithium bromide absorption cooling water unit in the utility model.
Fig. 3: be the schematic diagram of another embodiment of hot water type lithium bromide absorption cooling water unit in the utility model.
Fig. 4: be the structural representation of blast furnace slag flushing water heat accumulation apparatus in the utility model.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and detailed description of the invention of the present utility model is described.
As shown in Figure 1, the utility model provides a kind of blast furnace slag quenching water utilizing waste heat for refrigeration system 1000, comprises water pump 300, blast furnace slag flushing water treatment facilities 200, blast furnace slag flushing water heat accumulation apparatus 500 and hot water type lithium bromide absorption cooling water unit 100.Wherein, blast furnace slag flushing water treatment facilities 200, blast furnace slag flushing water heat accumulation apparatus 500 and hot water type lithium bromide absorption cooling water unit 100 are connected by pipeline successively.Blast furnace slag flushing water heat accumulation apparatus 500 is positioned at the top of hot water type lithium bromide absorption cooling water unit 100, blast furnace slag flushing water heat accumulation apparatus 500 is arranged on top, can saves a set of pumping plant, reduces and takes up an area and investment, economize energy.The water inlet end of water pump 300 connects hot-tub 400 by pipeline, and the water side of water pump 300 connects the water inlet end of blast furnace slag flushing water treatment facilities 200 by pipeline; The water side of hot water type lithium bromide absorption cooling water unit 100 connects water cooling pond 600 by pipeline.By water pump 300, blast furnace slag quenching water is taken out from hot-tub 400, there is due to washing slag water water quality the features such as high rigidity, high alkalinity, high suspended matter, Cl-ion high concentration, directly can not enter heat transmission equipment, process through blast furnace slag flushing water treatment facilities 200, the concentration of suspension of washing slag water reduces, and can not block miscellaneous equipment.Blast furnace slag flushing water treatment facilities 200 is prior art, and application number can be adopted in the specific implementation to be CN201010552316, and utility model name is called a kind of prior art of blast furnace slag flushing water filter.Through the washing slag water of water treatment, be introduced into blast furnace slag flushing water heat accumulation apparatus 500, blast furnace slag flushing water heat accumulation apparatus 500 exports water temperature and keeps constant, for hot water type lithium bromide absorption cooling water unit 100 provides the driving heat source of constant temperature, guarantee that chilled water temperature fluctuation is very little, coordinate blast fumance and flushing cinder system, an amount of stored heat at least meets the heat consumption of a smelting cycle inner cold water unit.
Washing slag water enters in blast furnace slag flushing water treatment facilities 200 and carries out water treatment, and the waste water after process is directly drained in water cooling pond 600 by pipeline, and the clean water after process enters accumulation of heat in blast furnace slag flushing water heat accumulation apparatus 500, ensures the use of handpiece Water Chilling Units 100.Blast furnace slag flushing water heat accumulation apparatus 500 is arranged in above hot water type lithium bromide absorption cooling water unit 100, washing slag water utilizes Action of Gravity Field to enter handpiece Water Chilling Units 100 from regenerative apparatus 500 to carry out heat release, save a set of pumping plant, reduce and take up an area and investment, economize energy, handpiece Water Chilling Units 100 absorbs washing slag water heat, produces the chilled water of about 8 DEG C.Washing slag water after heat release flows in the water cooling pond 600 of blast furnace slag flushing system by gravity, participates in next cycle blast furnace slag flushing, forms hot water again after flushing cinder, then enters hot-tub and extracted by water pump 300.Circulation like this, realizes waste heat recovery.Handpiece Water Chilling Units 100 can arrange guest machine according to system size, is connected in parallel, and prevents the system failure.
During concrete enforcement, a waste heat recovery station can be built near the hot and cold pond of blast furnace slag quenching water, station adopts two layer concretes or steel structural form, ground floor arranges blast furnace slag flushing water treatment facilities 200, hot water type lithium bromide absorption cooling water unit 100, and the second layer arranges blast furnace slag flushing water heat accumulation apparatus 500.Water pump 300 is arranged in blast furnace slag flushing pump house, is convenient to water intaking.
Further, as shown in Figure 2, hot water type lithium bromide absorption cooling water unit 100 comprises high pressure flash generator 1, low pressure flash generator 2, low pressure absorption evaporimeter 3, first volumetric heat exchanger 4, second volumetric heat exchanger 5, hp heat exchanger 6, low pressure heat exchanger 7, high pressure generator pump 8, high pressure absorber pump 9, low-pressure absorber pump 10, low pressure generator pump 11, evaporimeter pump 12 and vavuum pump 13.Wherein, the first and second volumetric heat exchangers 4,5 are a closed container, can be tank body, and tank body is provided with water inlet 41, a 51 and delivery port 42,52, and water inlet 41,51 and delivery port 42,52 form hot water entrance.Hot water entrance forms water inlet end and water side respectively, and water inlet end is connected with the outlet pipeline 506 (as shown in Figure 4) of blast furnace slag flushing water heat accumulation apparatus 500 by pipeline, and water side is connected to water cooling pond 600 by pipeline.In first and second volumetric heat exchangers 4,5, coiling is provided with spiral or U heat exchange road 43,53 respectively, and heat exchange pipeline 43,53 is formed with solution and imports and exports on tank body.The low-temperature water heating a of blast furnace slag quenching water or other quality enters heat exchanging pipeline 43,53 in volumetric heat exchanger 4,5 from water inlet 41,51 and carries out thermal drivers, then flows out from delivery port 42,52.High pressure flash generator 1 is made up of high-pressure flash chamber 101 and condensation chamber 102, is provided with cooling water coil 15 in condensation chamber 102.In the specific implementation, high pressure flash generator 1 can be the cylindrical tube of horizontal positioned, cylindrical tube inside is provided with a dividing plate vertically, this dividing plate top has flow channel, steam can between the cavity of dividing plate both sides proper flow, the both sides of this dividing plate form high-pressure flash chamber 101 and condensation chamber 102 respectively, horizontally disposed first cooling water coil 151 vertically in condensation chamber 102.Low pressure flash generator 2 is made up of low pressure flash chamber 201 and high pressure absorption chamber 202, is provided with cooling water coil 15 in high pressure absorption chamber 202.In the specific implementation, its internal structure and high pressure flash generator 1 internal structure similar, dividing plate both sides form low pressure flash chamber 201 and high pressure absorption chamber 202 respectively, horizontally disposed second cooling water coil 152 vertically in high pressure absorption chamber 202.The heat exchange pipeline 43 of the first volumetric heat exchanger 4 is communicated with the first pipeline 61 of hp heat exchanger 6 with high-pressure flash chamber 101 respectively; The heat exchange pipeline 53 of the second volumetric heat exchanger 5 is communicated with the first pipeline 71 of low pressure heat exchanger 7 with low pressure flash chamber 201 respectively.
Further, high pressure flash generator 1 and low pressure flash generator 2 can be arranged in same container (as shown in Figure 2), this container can be cylindrical tube, the first dividing plate 14 is provided with in this container, internal tank sealed separation is the first mutually isolated cavity and the second cavity by the first dividing plate 14, first cavity is positioned at the second cavity top, and the first cavity forms high pressure flash generator 1, second cavity and forms low pressure flash generator 2.Second partition 103 is provided with in first cavity, second partition 103 top is provided with passage, and the first cavity is divided into two spaces be communicated with by this second partition 103, and steam normally can circulate between two spaces, second partition side forms high-pressure flash chamber 101, and opposite side forms condensation chamber 102.The 3rd dividing plate 203 is provided with in second cavity, 3rd dividing plate 203 top is provided with passage, and the second cavity is divided into two spaces be communicated with by the 3rd dividing plate 203, and steam normally can circulate between two spaces, 3rd dividing plate 203 side forms low pressure flash chamber 201, and opposite side forms high pressure absorption chamber 202.
Further, hot water type lithium bromide absorption cooling water unit 100 is also provided with volumetric heat exchanger (not shown) for subsequent use, the heat exchange pipeline of volumetric heat exchanger for subsequent use is formed with the heat exchange pipeline 43,53 of first, second volumetric heat exchanger 4,5 respectively and is connected in parallel, and is controlled by valve control system.This absorption chiller 100 is through after a period of time, blast furnace slag quenching water makes fouling, blocking etc. in first, second volumetric heat exchanger 4,5, heat exchange efficiency is caused to decline, valve control system automatically switches to volumetric heat exchanger work for subsequent use, then can heat exchanging efficiency decline first, second volumetric heat exchanger 4,5 carry out cleaning and maintenance work, after cleaning, this first, second volumetric heat exchanger 4,5 is in stand-by state.Circulation like this, reaches the object that using exhaust heat of slag flushing water reclaims.Wherein valve control system adopts existing valve-gating technology all can realize this function.
Further, it is a container that low pressure absorbs evaporimeter 3, it also can be a cylindrical shell during concrete enforcement, the 4th dividing plate 303 is provided with in this container, internal tank is divided into two spaces be interconnected by the 4th dividing plate 303, steam normally can circulate between two spaces, and the 4th dividing plate 303 side forms vaporization chamber 301, and opposite side forms low pressure absorption chamber 302.Be provided with the 3rd cooling water coil 153 in low pressure absorption chamber 302, in vaporization chamber 301, be provided with chilled water coil pipe 16, in chilled water coil pipe 16, can chilled water be produced, meet the demand to chilled water.First, second, and third cooling water coil 151,152,153 is all communicated with coolant outlet c with cooling water inlet b by pipeline.In addition, high pressure flash generator 1, low pressure flash generator 2 and low pressure absorption evaporimeter 3 is connected with vavuum pump 13 respectively by vacuum-pumping pipeline.
Further, high pressure absorption chamber 202 and low pressure absorption chamber 302 bottom are equipped with concentrated solution capsule 202a, 302a and weak solution capsule 202b, 302b of being communicated with; The weak solution capsule 202b of high pressure absorption chamber 202 connects the first pipeline 61 of high pressure generator pump 8 and hp heat exchanger 6 successively by pipeline; The concentrated solution capsule 202a of high pressure absorption chamber 202 connects high pressure absorber pump 9 and high pressure absorption chamber 202 successively by pipeline.High-pressure flash chamber 101 is connected with the second pipeline 62 of hp heat exchanger 6, high pressure absorber pump 9 successively by pipeline.The weak solution capsule 302b of low pressure absorption chamber 302 is connected with the first pipeline 71 of low pressure generator pump 11 and low pressure heat exchanger 7 successively by pipeline; The concentrated solution capsule 302a of low pressure absorption chamber 302 connects low-pressure absorber pump 10 and low pressure absorption chamber 302 successively by pipeline.Low pressure flash chamber 201 connects the second pipeline 72 and the low-pressure absorber pump 10 of low pressure heat exchanger 7 successively by pipeline; Vaporization chamber 301 connects evaporimeter pump 12 successively by pipeline and connects back again vaporization chamber 301 and form Inner eycle; Condensation chamber 102 is communicated with vaporization chamber 301 by pipeline, and this pipeline is provided with choke valve 17.Entered respectively in high-low pressure flash distillation generator 1,2 by the bromize lithium dilute solution e that blast furnace slag quenching water a heats in volumetric heat exchanger 4,5 and carry out flash distillation generation, this hot water type lithium bromide absorption cooling water unit all adopts Flash Type generator, shower nozzle or jet pipe is provided with in high-low pressure flash chamber, high-low pressure absorption chamber and vaporization chamber, water vapour in weak solution e is separated, the concentrated solution n produced and water vapour enter other links of system, participate in kind of refrigeration cycle.
Further, high pressure flash generator 1 and low pressure flash generator 2 also can be arranged in different containers, as shown in Figure 3.
The specific works flow process of this handpiece Water Chilling Units 100 is: bromize lithium dilute solution e is heated by blast furnace slag quenching water a in volumetric heat exchanger 4,5, enter in high pressure flash generator 1 and low pressure flash absorber 2 afterwards, moisture flash-off of steam respectively in high-low pressure flash chamber 101,201 in bromize lithium dilute solution e, water vapour in high-pressure flash chamber 101 is entered in condensation chamber 102 by second partition 103 and condenses into water s, enter vaporization chamber 301 through choke valve 17, produce refrigeration effect.Concentrated solution n gets back to high pressure absorption chamber 202 and absorbs from the water vapour in low pressure flash chamber 201, produces bromize lithium dilute solution e.Whole system has the refrigerant cycle and solution circulation that high and low pressure two-stage is complete, and cryogen is water in the present embodiment, and solution is lithium-bromide solution.
Refrigerant cycle: first absorbed by bromize lithium concentrated solution n in low-pressure stage solution circulation from the low pressure refrigerant vapour in vaporization chamber 301, become bromize lithium dilute solution e, then send in the first pipeline 71 of low pressure heat exchanger 7 through low pressure generator pump 11, the heat of bromize lithium concentrated solution n in low pressure flash chamber 201 is absorbed in low pressure heat exchanger 7, enter the heat that the second volumetric heat exchanger 5 absorbs blast furnace slag quenching water a afterwards, then enter in low pressure flash chamber 201 through throttling arrangement (not shown) and occur, the refrigerant pressure produced in low pressure flash chamber 201 rises to intermediate pressure, boosting is the refrigerant vapour of intermediate pressure, enter hiigh pressure stage solution circulation again.In high pressure absorption chamber 202, concentrated solution n absorbs refrigerant vapour and becomes weak solution e, send in the first pipeline 61 of hp heat exchanger 6 by high pressure generator pump 8, the heat of bromize lithium concentrated solution n in high-pressure flash chamber 101 is absorbed in hp heat exchanger 6, enter the heat that the first volumetric heat exchanger 4 absorbs blast furnace slag quenching water a afterwards again, enter in high-pressure flash chamber 101 finally by throttling arrangement (not shown) and occur, boosting is high pressure refrigerant vapour, finally go condensation chamber 102 heat release, be then recycled to vaporization chamber 301 and freeze.
Solution circulation: the refrigerant vapour that the concentrated solution n in low pressure absorption chamber 302 absorbs from vaporization chamber 301 becomes weak solution e, then send in the first pipeline 71 of low pressure heat exchanger 7 through low pressure generator pump 11, then enter low pressure flash chamber 201 after the second volumetric heat exchanger 5.In low pressure flash chamber 201, weak solution e becomes concentrated solution n through flash distillation, and concentrated solution n turns back in low pressure absorption chamber 302 through the effect of low-pressure absorber pump 10 again and continues to absorb refrigerant vapour, and this solution circulation completes the transfer of cryogen and the lifting of pressure.Concentrated solution n in high pressure absorption chamber 202 becomes weak solution e after pressing refrigerant vapour in absorbing, then heat up through hp heat exchanger 6, first volumetric heat exchanger 4, after the decompression of decompressor (not shown), enter flash distillation in high-pressure flash chamber 101, produce concentrated solution n, concentrated solution n returns again in high pressure absorption chamber 202 and continues to press refrigerant vapour in absorption, so circulates, reaches the object that the rising of middle pressure cryogen is high pressure cryogen.Because hot water for slag flushing in blast furnace and cooling water are that parallel connection enters system high-low pressure equipment, the thermal source therefore in high-low pressure two-stage solution circulation and cooling water condition are identical.
The thermal drivers source of lithium-bromide solution is placed in outside high and low pressure generator by this handpiece Water Chilling Units 100, adopt volumetric heat exchanger as heat-exchanger rig, heat exchange pipeline is placed in many group volumetric heat exchangers, problems such as even if a certain group of volumetric heat exchanger blocks, leak, foulings, can automatically switch in volumetric heat exchanger for subsequent use by valve control system, ensure that unit normally runs.In addition, thermal drivers source and flash chamber are independently arranged, and the size and dimension of the two can independently be considered, mutually unaffected.The utility model is used for iron and steel enterprise's blast furnace slag quenching water waste heat recovery, also be applicable to the low-temperature water heating waste heat recovery in the field such as oil, chemical industry simultaneously, avoid the problem that water at low temperature poor quality is brought, and meet the demand of above-mentioned field to chilled water, reach the object of waste heat recycling, save water treatment system and equipment, reduce investment and take up an area.The utility model heat exchange efficiency is high in addition, maintenance is convenient.
Further, as shown in Figure 4, blast furnace slag flushing water heat accumulation apparatus 500 comprises a regenerative apparatus body 501, regenerative apparatus body 501 is provided with water inlet 511 and a delivery port 512, during concrete enforcement, regenerative apparatus body 501 can be the rectangular box of a sealing, and water inlet 511 is arranged on the side at casing top, and delivery port 512 is arranged on the lower box of the opposite side relative with water inlet 511.Water inlet 511 connects the delivery port (not shown) of blast furnace slag flushing water treatment facilities 200 by inlet pipeline 502.Inlet pipeline 502 is provided with the first controlled valve 503, inlet pipeline 502 is also provided with a water inlet and regulates bypass 504, water inlet regulates bypass 504 to be communicated to pulp water process system (not shown), and water inlet regulates bypass 504 to be provided with second switch valve 505.The delivery port 512 of regenerative apparatus body 501 connects outlet pipeline 506, and outlet pipeline 506 is provided with out water regulating valve group 507, and this goes out water regulating valve group 507 is the 4th controlled valve; Outlet pipeline 506 connects the water inlet end of handpiece Water Chilling Units 100.In addition, regenerative apparatus body 501 also connects a Heat preservation system, be provided with flow-disturbing dividing plate 508 in regenerative apparatus body 501, flow-disturbing dividing plate 508 can reduce the impact of thermal stratification on pulp water heat user.
Blast furnace slag flushing is intermittent work, during blast furnace slag flushing, blast furnace slag quenching water is after treating apparatus process, regenerative apparatus body 1 is entered by inlet pipeline 502, according to the use heat demand of follow-up link, unnecessary blast furnace slag quenching water regulates bypass 504 to be transported to back pulp water process system by water inlet, and the blast furnace slag quenching water entering regenerative apparatus body 501 passes through water regulating valve group 507 provides hot water for slag flushing for follow-up link, realizes a certain amount of accumulation of heat simultaneously.After blast furnace stops flushing cinder, by the pulp water heat user without interruption of the blast furnace slag quenching water in regenerative apparatus body 501.Consider the impact of blast furnace accident conditions on pulp water heat user, this full load regenerative apparatus 500 is also provided with security personnel's heating system, after the blast furnace slag flushing coolant-temperature gage in regenerative apparatus body 501 declines, this security personnel's heating system can carry out temporary transient heat supply to washing slag water in regenerative apparatus body 501, guarantees the hot safety of the short-term of heat user.The ability of this regenerative apparatus is mated with heat user, meets heat user and uses heat demand continuously.
Further, Heat preservation system comprises a vapour source (not shown), it is inner that this vapour source is connected to regenerative apparatus body 501 by steam pipework 509, steam pipework 509 is provided with the 3rd controlled valve 513, in concrete enforcement, first to fourth controlled valve can be manual switch valve door, also can for the automatic switch valve controlled by valve control system.The steam pipework 509 being positioned at regenerative apparatus body 501 inside is provided with steam jet 5091.Flow-disturbing dividing plate 508 is multiple, and multiple flow-disturbing dividing plate 508 is vertically arranged in the casing between water inlet 511 and delivery port 512, in regenerative apparatus body 501, form multiple runner be interconnected.Concrete, in multiple flow-disturbing dividing plate 508, be the first flow-disturbing dividing plate from the flow-disturbing dividing plate 508 that water inlet 511 is nearest, the top of the first flow-disturbing dividing plate upper end and regenerative apparatus body 501 is fixed, and the both sides, lower end of the first flow-disturbing dividing plate are interconnected; Adjacent with the first flow-disturbing dividing plate is the second flow-disturbing dividing plate, and the lower end of the second flow-disturbing dividing plate and the bottom of regenerative apparatus body 501 are fixed, and the both sides, upper end of the second flow-disturbing dividing plate are interconnected; The like, the set-up mode of the odd number flow-disturbing dividing plate such as the first, the 3rd, the 5th is identical with the first flow-disturbing dividing plate, and the set-up mode of the even number flow-disturbing dividing plate such as the second, the 4th, the 6th is identical with the second flow-disturbing dividing plate; Three flow-disturbing dividing plates are adopted in present embodiment.
This regenerative apparatus 500 regulates bypass by arranging water inlet, goes out water regulating valve group and Heat preservation system, realizes the adjustable of accumulation of heat, can eliminate washing slag water interruption flushing cinder in blast furnace slag flushing technique and cause slag water temperature fluctuation on the impact of heat user.The ability of regenerative apparatus is mated with heat user, meets heat user and uses heat demand continuously.In addition, regenerative apparatus body interior establishes flow-disturbing dividing plate, reduces thermal stratification to the impact of pulp water heat user.
In sum, the utility model can directly utilize the waste heat of blast furnace slag quenching water to produce chilled water, not only can reclaim the waste heat of blast furnace slag quenching water the whole year, can also solve other techniques as technological requirements such as coking, gold smelting furnac$ cooling, dehumidifying.Also may be used for the low-temperature water heating waste heat recovery in the field such as oil, chemical industry, also meet the demand of above-mentioned field to chilled water simultaneously, reach the object of waste heat recycling.The problem that the utility model can avoid water at low temperature poor quality to bring, also have heat exchange efficiency high, overhaul advantage easily, and washing slag water can be eliminated in blast furnace slag flushing technique be interrupted flushing cinder and cause slag water temperature fluctuation on the impact of heat user.The ability of regenerative apparatus is mated with heat user, meets heat user and uses heat demand continuously.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (13)
1. a blast furnace slag quenching water utilizing waste heat for refrigeration system, comprises water pump, blast furnace slag flushing water treatment facilities, it is characterized in that: described blast furnace slag quenching water utilizing waste heat for refrigeration system also comprises blast furnace slag flushing water heat accumulation apparatus, hot water type lithium bromide absorption cooling water unit; Described blast furnace slag flushing water treatment facilities, blast furnace slag flushing water heat accumulation apparatus and hot water type lithium bromide absorption cooling water unit are connected by pipeline successively; Wherein, blast furnace slag flushing water heat accumulation apparatus is positioned at the top of hot water type lithium bromide absorption cooling water unit; The water inlet end of described water pump connects hot-tub by pipeline, and the water side of water pump connects the water inlet end of blast furnace slag flushing water treatment facilities by pipeline; The water side of hot water type lithium bromide absorption cooling water unit connects water cooling pond by pipeline.
2. blast furnace slag quenching water utilizing waste heat for refrigeration system as claimed in claim 1, it is characterized in that: described hot water type lithium bromide absorption cooling water unit, comprise high pressure flash generator, low pressure flash generator, low pressure absorption evaporimeter, first and second liang of group volumetric heat exchangers; Described volumetric heat exchanger is a closed container, which is provided with hot water entrance, and hot water entrance forms water inlet end and water side respectively, and described water inlet end is connected with blast furnace slag flushing water heat accumulation apparatus by pipeline, and described water side is connected to water cooling pond by pipeline; Described volumetric heat exchanger inner disc is arranged with heat exchange pipeline, and heat exchange pipeline is formed with solution and imports and exports on volumetric heat exchanger; Described high pressure flash generator is made up of high-pressure flash chamber and condensation chamber; Low pressure flash generator is made up of low pressure flash chamber and high pressure absorption chamber; The first and second cooling water coils are respectively equipped with in described condensation chamber and high pressure absorption chamber; The heat exchange pipeline of the first volumetric heat exchanger respectively with the first pipeline connection of described high-pressure flash chamber and a hp heat exchanger; The heat exchange pipeline of the second volumetric heat exchanger respectively with the first pipeline connection of described low pressure flash chamber and a low pressure heat exchanger.
3. blast furnace slag quenching water utilizing waste heat for refrigeration system as claimed in claim 2, it is characterized in that: described high pressure flash generator and low pressure flash generator are arranged in same container, the first dividing plate is provided with in this container, internal tank sealed separation is the first mutually isolated cavity and the second cavity by described first dividing plate, described first cavity is positioned at the second cavity top, first cavity forms described high pressure flash generator, and the second cavity forms described low pressure flash generator; Be provided with second partition in first cavity, second partition top is provided with passage, and the first cavity is divided into two spaces be communicated with by this second partition, and second partition side forms described high-pressure flash chamber, and opposite side forms described condensation chamber; Be provided with the 3rd dividing plate in second cavity, the 3rd dividing plate top is provided with passage, and the second cavity is divided into two spaces be communicated with by the 3rd dividing plate, and the 3rd dividing plate side forms described low pressure flash chamber, and opposite side forms described high pressure absorption chamber.
4. blast furnace slag quenching water utilizing waste heat for refrigeration system as claimed in claim 2 or claim 3, it is characterized in that: described hot water type lithium bromide absorption cooling water unit is also provided with volumetric heat exchanger for subsequent use, the heat exchange pipeline of described volumetric heat exchanger for subsequent use is formed with the heat exchange pipeline of first, second volumetric heat exchanger respectively and is connected in parallel, and is controlled by valve control system.
5. blast furnace slag quenching water utilizing waste heat for refrigeration system as claimed in claim 4, it is characterized in that: it is a container that described low pressure absorbs evaporimeter, the 4th dividing plate is provided with in this container, internal tank is divided into two spaces be interconnected by described 4th dividing plate, 4th dividing plate side forms vaporization chamber, and opposite side forms low pressure absorption chamber; Be provided with the 3rd cooling water coil in described low pressure absorption chamber, in described vaporization chamber, be provided with chilled water coil pipe.
6. blast furnace slag quenching water utilizing waste heat for refrigeration system as claimed in claim 5, is characterized in that: described high pressure absorption chamber and low pressure absorption chamber bottom are equipped with concentrated solution capsule and weak solution capsule; The weak solution capsule of high pressure absorption chamber connects the first pipeline of high pressure generator pump and hp heat exchanger successively by pipeline; The concentrated solution capsule of high pressure absorption chamber connects high pressure absorber pump and high pressure absorption chamber successively by pipeline; High-pressure flash chamber is connected with the second pipeline of hp heat exchanger, high pressure absorber pump successively by pipeline; The weak solution capsule of low pressure absorption chamber is connected with the first pipeline of low pressure generator pump and low pressure heat exchanger successively by pipeline; The concentrated solution capsule of low pressure absorption chamber connects low-pressure absorber pump and low pressure absorption chamber successively by pipeline; Low pressure flash chamber connects the second pipeline and the low-pressure absorber pump of low pressure heat exchanger successively by pipeline; Described vaporization chamber connects evaporimeter pump successively by pipeline and connects back vaporization chamber; Described condensation chamber is communicated with vaporization chamber by pipeline, and this pipeline is provided with choke valve.
7. blast furnace slag quenching water utilizing waste heat for refrigeration system as claimed in claim 6, is characterized in that: described high pressure flash generator, low pressure flash generator and low pressure absorb evaporimeter and is connected with vavuum pump respectively by vacuum-pumping pipeline.
8. blast furnace slag quenching water utilizing waste heat for refrigeration system as claimed in claim 7, is characterized in that: described hot water type lithium bromide absorption cooling water unit all adopts Flash Type generator, in high-low pressure flash chamber, high-low pressure absorption chamber and vaporization chamber, be provided with shower nozzle or jet pipe.
9. blast furnace slag quenching water utilizing waste heat for refrigeration system as claimed in claim 1 or 2, it is characterized in that: described blast furnace slag flushing water heat accumulation apparatus comprises a regenerative apparatus body, described regenerative apparatus body is provided with a water inlet and a delivery port; Described water inlet connects the delivery port of blast furnace slag flushing water treatment facilities by inlet pipeline; Described inlet pipeline is provided with the first controlled valve, inlet pipeline is also provided with a water inlet and regulates bypass, and described water inlet regulates bypass to pulp water process system, and water inlet regulates bypass to be provided with second switch valve; The delivery port of described regenerative apparatus body connects outlet pipeline, and outlet pipeline is provided with out water regulating valve group; Regenerative apparatus body also connects a Heat preservation system, in regenerative apparatus body, be provided with flow-disturbing dividing plate.
10. blast furnace slag quenching water utilizing waste heat for refrigeration system as claimed in claim 9, it is characterized in that: described Heat preservation system comprises a vapour source, this vapour source is connected to regenerative apparatus body interior by steam pipework, steam pipework is provided with the 3rd controlled valve, and the steam pipework being positioned at regenerative apparatus body interior is provided with steam jet.
11. blast furnace slag quenching water utilizing waste heat for refrigeration systems as claimed in claim 10, is characterized in that: the water regulating valve group that goes out on described outlet pipeline is the 4th controlled valve; The automatic switch valve that described first to fourth controlled valve is hand switch valve or is controlled by valve control system.
12. blast furnace slag quenching water utilizing waste heat for refrigeration systems as claimed in claim 11, is characterized in that: described regenerative apparatus body is rectangular box, and water inlet is arranged on the side at casing top, and delivery port is arranged on the lower box of the opposite side relative with water inlet; Flow-disturbing dividing plate is multiple, and multiple flow-disturbing dividing plate is vertically arranged in the casing between water inlet and delivery port, forms multiple runner be interconnected in regenerative apparatus body.
13. blast furnace slag quenching water utilizing waste heat for refrigeration systems as claimed in claim 12, it is characterized in that: in described multiple flow-disturbing dividing plate, be the first flow-disturbing dividing plate from the flow-disturbing dividing plate that water inlet is nearest, the top of the first flow-disturbing dividing plate upper end and regenerative apparatus body is fixed, and the both sides, lower end of the first flow-disturbing dividing plate are interconnected; Adjacent with the first flow-disturbing dividing plate is the second flow-disturbing dividing plate, and the lower end of the second flow-disturbing dividing plate and the bottom of regenerative apparatus body are fixed, and the both sides, upper end of the second flow-disturbing dividing plate are interconnected; The like, the set-up mode of odd number flow-disturbing dividing plate is identical with the first flow-disturbing dividing plate, and the set-up mode of even number flow-disturbing dividing plate is identical with the second flow-disturbing dividing plate.
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| CN201420868969.6U CN204359153U (en) | 2014-12-31 | 2014-12-31 | Blast furnace slag quenching water utilizing waste heat for refrigeration system |
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| CN201420868969.6U CN204359153U (en) | 2014-12-31 | 2014-12-31 | Blast furnace slag quenching water utilizing waste heat for refrigeration system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567442A (en) * | 2014-12-31 | 2015-04-29 | 北京京诚科林环保科技有限公司 | Afterheat refrigerating system for slag flushing water of blast furnace |
| CN107557506A (en) * | 2016-06-30 | 2018-01-09 | 鞍钢股份有限公司 | A kind of blast furnace slag quenching water afterheat utilizing system and method |
-
2014
- 2014-12-31 CN CN201420868969.6U patent/CN204359153U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567442A (en) * | 2014-12-31 | 2015-04-29 | 北京京诚科林环保科技有限公司 | Afterheat refrigerating system for slag flushing water of blast furnace |
| CN107557506A (en) * | 2016-06-30 | 2018-01-09 | 鞍钢股份有限公司 | A kind of blast furnace slag quenching water afterheat utilizing system and method |
| CN107557506B (en) * | 2016-06-30 | 2019-03-26 | 鞍钢股份有限公司 | A kind of blast furnace slag quenching water afterheat utilizing system and method |
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