CN103471305A - Efficient casting and forging piece cooling waste-heat utilization system - Google Patents
Efficient casting and forging piece cooling waste-heat utilization system Download PDFInfo
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- CN103471305A CN103471305A CN2013104236131A CN201310423613A CN103471305A CN 103471305 A CN103471305 A CN 103471305A CN 2013104236131 A CN2013104236131 A CN 2013104236131A CN 201310423613 A CN201310423613 A CN 201310423613A CN 103471305 A CN103471305 A CN 103471305A
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Abstract
The invention relates to an efficient casting and forging piece cooling waste-heat utilization system which can reasonably control cooling speed and recycle and reuse cooling waste-heat. The system comprises a cooling chamber, a heat exchanger, a heat storage water circulation loop, a waste-heat utilization loop and a control cabinet, wherein a guide rail, a cooling table, a cooling air inlet passage and a hot air outlet passage are arranged in the cooling chamber, and the hot air outlet passage is communicated with an outlet pipe outside the cooling chamber; a hot air heat transfer passage, a heat storage water transfer passage and a waste-heat utilization medium transfer passage are arranged in the heat exchanger, the outlet pipe is communicated with an inlet of the hot air heat transfer passage, an outlet of the hot air heat transfer passage is provided with an exhaust pipe, and an induced draft fan is arranged on the exhaust pipe; the heat storage water circulation loop comprises a closed circulation pipeline which is respectively communicated with the inlet and the outlet of the heat storage water transfer passage, a circulation pump is arranged on the circulation pipeline, and control valves are respectively formed on the circulation pipe close to two ends of the circulation pump; the inlet and the outlet of the waste-heat utilization medium transfer passage are respectively communicated with the waste-heat utilization system.
Description
Technical field
The present invention relates to high temperature work-piece cools residual neat recovering system, particularly a kind of casting, forging high efficiency cooling bootstrap system.
Background technology
2008 " Energy Conservation Law of the People's Republic of China ", announced and implemented, country just constantly promotes enterprise and reduces output value energy consumption and energy consumption of unit product, eliminate highly energy-consuming production technology and equipment, encourage, help the energy-conservation technology such as industrial enterprise's UTILIZATION OF VESIDUAL HEAT IN, accelerate to form the mode of production and the consumption mode of energy-conserving and environment-protective, strengthen the capability of sustainable development.Before iron and steel, machinery production industry must carry out the workpiece transportation after producing steel ingot, casting, forger part or next procedure produce the front technique that cools, to discharge a large amount of heat energy in the process that cools, and directly be discharged in environment and not only to cause energy waste but also to causing environmental pollution.
In production, foundry goods, after cast, before knockout, all needs certain cool time, after casting solidification, and can knockout.Cooling too fast foundry goods easily cracks, so the cooling velocity of foundry goods must meet the requirement of process for cooling.But in order enhancing productivity, to accelerate place and sandbox turnover, must to shorten cool time again, so controlled very important to cool time as far as possible.The iron casting workshop of mechanical production line, the casting mold after cast is to realize that gravity-flow ventilation is cooling in the process of carrying at mould conveyer.Forging is cooling is requisite operation in the Forging Technology process, in production, due to cooling improper after forging, often makes the forging warpage, and case hardness raises, and even cracks.For guaranteeing forging quality, often the forging after forging is placed in air naturally coolingly, the method cooling velocity is uncontrollable, easily causes the workpiece quality problem, and cooling residual heat all is discharged in environment and not only causes energy waste but also contaminated environment.Perhaps the forging after forging being imbedded to filling in the melt pit of sand, slag, lime or asbestos that thermal conductivity is less and carries out coolingly claiming that again hole is cold, but this method cooling velocity is slower, usually be only applicable to the medium-sized forging of medium carbon steel, alloy tool steel and most of low-alloy steel, and that the carbon tool steel forging needs after first air cooling to 700 ℃-650 ℃ to cheat again is cold, and heat has still all been wasted.Put into immediately the heating furnace of 500 ℃ one 700 ℃ again or by the forging after forging, with stove cooling (claim: stove is cold), this is a kind of cooling means the most slowly, be suitable for the large forgings of medium carbon steel and low-alloy steel and the strength member of high-alloy steel, though can control cooling velocity, but heat is not still recycled, but also taken the service efficiency of heating furnace.
Summary of the invention
The present invention is directed to the problem that existing production procedure and technology exist, a kind of casting, forging high efficiency cooling bootstrap system are provided, be intended to rationally control the cooling velocity of foundry goods or forging by the cooling velocity requirement of different workpieces, avoid cracking at inside workpiece because work-piece cools speed is uncontrollable, the defect such as distortion or warpage, and by the effective recycling of work-piece cools waste heat, improve the recycling rate of resource, environmental contamination reduction.
The object of the present invention is achieved like this, a kind of casting, forging high efficiency cooling bootstrap system, comprise cooling chamber, heat exchanger, water storage closed circuit, UTILIZATION OF VESIDUAL HEAT IN loop and switch board, be provided with guide rail and cooling bench that can slippage on guide rail in described cooling chamber, be respectively equipped with cold air inlet channel and hot-air outlet passageway in described cooling chamber, the described cold air inlet channel air inlet pipe outer with cooling chamber is communicated with and air inlet pipe is provided with intake valve, and the described hot-air outlet passageway escape pipe outer with cooling chamber is communicated with; Be provided with hot-air heat transfer path, water storage transmission channels and UTILIZATION OF VESIDUAL HEAT IN medium transmission channels in described heat exchanger, described escape pipe is communicated with the import of hot-air heat transfer path, the outlet of described hot-air heat transfer path is provided with blast pipe, and described blast pipe is provided with air-introduced machine; Described water storage closed circuit comprises the circulation line that closes be communicated with the import of water storage transmission channels and outlet respectively, and described circulation line is provided with circulating pump, on the circulation line near described circulating pump two ends, is respectively equipped with control valve; The turnover of described UTILIZATION OF VESIDUAL HEAT IN medium transmission channels and outlet are communicated with bootstrap system respectively.
Casting of the present invention, forging high efficiency cooling bootstrap system operation principle are: the guide rail in cooling chamber may extend on casting or forging line so that cooling bench along guide rail by high temperature workpiece handling to be cooled in cooling chamber.During work, whole system is divided three tunnels, the first via be take air-introduced machine as circulation power, cooling-air enters cooling chamber from intake valve through air inlet pipe and cold air inlet channel, to the workpiece on cooling bench, carry out cooling, the cooling residual heat of workpiece is the air heat in cooling chamber, heated high-temperature gas from the hot-air outlet passageway be drawn out of cooling chamber through escape pipe enter the hot-air heat transfer path of heat exchanger and heat transmission occurring in heat exchanger heat is emitted after gas temperature reduce and discharge through air-introduced machine from escape pipe; The second tunnel is the water storage closed circuit, and the water storage in this loop absorbs that heat that the hot-air heat transfer path discharges raises water temperature and ringing by circulating pump makes the water temperature in whole closed circuit raise gradually and heat is stored in closed circuit from the water storage transmission channels of heat exchanger through heat exchange; Third Road is the UTILIZATION OF VESIDUAL HEAT IN loop, when need to there be hot water output in the UTILIZATION OF VESIDUAL HEAT IN loop, the medium that normal-temperature water or UTILIZATION OF VESIDUAL HEAT IN will heat enters heat exchanger from the import of UTILIZATION OF VESIDUAL HEAT IN heat transfer path, in the UTILIZATION OF VESIDUAL HEAT IN transmission channels with heat exchanger in high-temperature medium be that the outlet from the UTILIZATION OF VESIDUAL HEAT IN transmission channels is discharged after water storage closed circuit generation heat exchange rising temperature, constantly carry out UTILIZATION OF VESIDUAL HEAT IN.Cooling residual heat recycling system of the present invention, thereby can control by the exhaust air rate of controlling air-introduced machine the cooling velocity that cooling-air inlet in cooling chamber and air circulation speed are controlled workpiece, both can improve the cooling velocity of workpiece, and also avoid workpiece to produce the defects such as crackle and warpage because cooling velocity is uncontrollable; High-temperature gas after cooling workpiece can store heat or rationally utilize through bootstrap system by the heat exchange action of heat exchanger simultaneously, thereby has avoided the waste of cooling residual heat to reach the thermal pollution to environment.
Cooling velocity for ease of each position of workpiece in the control cooling chamber is even, described cold air inlet channel is provided with some air inlets and is arranged at the below of cooling chamber, described hot-air outlet passageway is provided with some exhaust outlets and is arranged at the top of cooling chamber, in described air inlet pipe and near the exhaust outlet above cooling chamber, is respectively equipped with temperature sensor one and the temperature sensor two be connected with switch board; Described steam outlet pipe be respectively equipped with temperature sensor three and the temperature sensor four be connected with switch board on gland steam exhauster, described air-introduced machine is the frequency converting induced draft fan of controlling by switch board.In native system, according to the process for cooling rate request of workpiece, control the motor rotation frequency of frequency converting induced draft fan by switch board and regulate exhaust air rate, and further accurately control the cooling velocity of workpiece by the monitoring of cooling chamber inlet and outlet temperature by switch board.
For further improving the heat exchanger effectiveness of heat exchanger, the water storage closed circuit of the described water storage transmission channels port of export is provided with the temperature sensor five be connected with switch board, the import of described UTILIZATION OF VESIDUAL HEAT IN transmission channels be respectively equipped with temperature sensor six and the temperature sensor seven be connected with switch board on the pipeline of outlet.
For guaranteeing that the water storage closed circuit moves reliably and with long-term, described circulating pump is arranged in parallel two-way on the water storage closed circuit, and circulating pump two ends, every road are respectively equipped with control valve, and described circulating pump is connected respectively control with control valve with switch board.During the work of the circulating pump of this two-way parallel connection, one main one is auxiliary, so that the normal operation of system when circulating pump fault or maintenance.
For further operational factor and the amount of energy saving of precision monitoring system are added up, described water storage closed circuit is provided with some Pressure gauges that are connected with switch board, is respectively equipped with the Pressure gauge, temperature sensor and the flowmeter that are communicated with switch board on the inlet ductwork of described UTILIZATION OF VESIDUAL HEAT IN transmission channels and export pipeline.
The accompanying drawing explanation
Fig. 1 is casting of the present invention, forging high efficiency cooling bootstrap system schematic diagram.
Wherein, 1 cooling chamber; 101 guide rails; 102 cooling benches; 103 cold air inlet channels; 104 hot-air outlet passageways; 2 heat exchangers; 3 water storage closed circuits; 301 circulating pumps; 302 control valves; 4 UTILIZATION OF VESIDUAL HEAT IN loops; 5 switch boards; 6 air inlet pipe; 7 intake valves; 8 escape pipes; 9 temperature sensors one; 10 temperature sensors two; 11 temperature sensors three; 12 temperature sensors four; 13 blast pipes; 14 air-introduced machines; 15 temperature sensors five; 16 temperature sensors six; 17 temperature sensors seven.
The specific embodiment
Be illustrated in figure 1 casting of the present invention, forging high efficiency cooling bootstrap system, comprise cooling chamber 1, heat exchanger 2, water storage closed circuit 3, UTILIZATION OF VESIDUAL HEAT IN loop 4 and switch board 5, be provided with guide rail 101 and cooling bench 102 that can slippage on guide rail 101 in cooling chamber 1, be respectively equipped with cold air inlet channel 103 and hot-air outlet passageway 104 in cooling chamber 1, cold air inlet channel 103 air inlet pipe 6 outer with cooling chamber 1 is communicated with and air inlet pipe 6 is provided with intake valve 7, and hot-air outlet passageway 104 escape pipe 8 outer with cooling chamber 1 is communicated with; Be provided with hot-air heat transfer path, water storage transmission channels and UTILIZATION OF VESIDUAL HEAT IN medium transmission channels in heat exchanger 2, escape pipe 8 is communicated with the import of hot-air heat transfer path, and the outlet of hot-air heat transfer path is provided with blast pipe 13, and blast pipe 13 is provided with air-introduced machine 14; Water storage closed circuit 3 comprises the closed cycle pipeline be communicated with the import of water storage transmission channels and outlet respectively, and circulation line is provided with circulating pump 301, on the circulation line near circulating pump 301 two ends, is respectively equipped with control valve 302; The turnover of UTILIZATION OF VESIDUAL HEAT IN medium transmission channels and outlet are communicated with respectively formation UTILIZATION OF VESIDUAL HEAT IN loop 4 with bootstrap system.
Cooling velocity for ease of control each position of the interior workpiece of cooling chamber 1 is even, cold air inlet channel 103 is provided with some air inlets and is arranged at the below of cooling chamber 1, hot-air outlet passageway 104 is provided with some exhaust outlets and is arranged at the top of cooling chamber 1, in air inlet pipe 6 with near the exhaust outlet of cooling chamber 1 top, is respectively equipped with temperature sensor 1 and the temperature sensor 2 10 be connected with switch board 5; Steam outlet pipe 8 be respectively equipped with temperature sensor 3 11 and the temperature sensor 4 12 be connected with switch board 5 on gland steam exhauster 13, air-introduced machine 14 frequency converting induced draft fan for controlling by switch board 5.In native system, according to the cooling velocity requirement of workpiece, the motor rotation frequency of controlling frequency converting induced draft fan by switch board 5 is regulated exhaust air rate, and can further accurately control the cooling velocity of workpiece by the monitoring of cooling chamber 1 inlet and outlet temperature; For further improving the heat exchanger effectiveness of heat exchanger 2, the water storage closed circuit 3 of the water storage transmission channels port of export is provided with the temperature sensor 5 15 be connected with switch board 5, the import of UTILIZATION OF VESIDUAL HEAT IN transmission channels be respectively equipped with temperature sensor 6 16 and the temperature sensor 7 17 be connected with switch board 5 on the pipeline of outlet; For guaranteeing water storage closed circuit 3 operation reliably and with long-term, circulating pump 301 is arranged in parallel two-way on water storage closed circuit 3, and circulating pump 301 two ends, every road are respectively equipped with control valve 302, circulating pump 301 and control valve 302 with distinguish switch board 5 and be connected.When the circulating pump 301 of this two-way parallel connection is worked, one main one is auxiliary, the normal operation of system during with assurance circulating pump fault or maintenance; For further operational factor and the amount of energy saving of precision monitoring system are added up, water storage closed circuit 3 is provided with some Pressure gauges that are connected with switch board 5, is respectively equipped with the Pressure gauge, temperature sensor and the flowmeter that are communicated with switch board 5 on the inlet ductwork of UTILIZATION OF VESIDUAL HEAT IN transmission channels and export pipeline.
Casting of the present invention, forging high efficiency cooling bootstrap system, the guide rail 101 in cooling chamber 1 may extend on casting or forging line so that cooling bench 102 along guide rail 101 by high temperature workpiece handling to be cooled in cooling chamber 1.During work, whole system is divided three tunnels, the first via be take air-introduced machine 14 as circulation power, cooling-air enters cooling chamber 1 from air inlet pipe through intake valve 7 and cold air inlet channel 103, to the workpiece on cooling bench 102, carry out cooling, the cooling residual heat of workpiece is the air heat in cooling chamber 1, heated high-temperature gas from hot-air outlet passageway 104 be drawn out of cooling chamber 1 through escape pipe 8 enter heat exchanger 2 the hot-air heat transfer path and interior the generations heat of heat exchanger 2 transmit heat is emitted after gas temperature reduce from escape pipe 13 through air-introduced machine 14 discharges; The second tunnel is water storage closed circuit 3, and the water storage in this loop absorbs that heat that the hot-air heat transfer path discharges raises water temperature and ringing by circulating pump 301 makes the water temperature in whole closed circuit raise gradually and heat is stored in closed circuit from the water storage transmission channels of heat exchanger 2 through heat exchange; Third Road is UTILIZATION OF VESIDUAL HEAT IN loop 4, when need to there be hot water output in the UTILIZATION OF VESIDUAL HEAT IN loop, the medium that normal-temperature water or UTILIZATION OF VESIDUAL HEAT IN will heat enters heat exchanger 2 from the import of UTILIZATION OF VESIDUAL HEAT IN heat transfer path, in the UTILIZATION OF VESIDUAL HEAT IN transmission channels with heat exchanger 2 in high-temperature medium be that the outlet from the UTILIZATION OF VESIDUAL HEAT IN transmission channels is discharged after water storage closed circuit generation heat exchange rising temperature, constantly carry out UTILIZATION OF VESIDUAL HEAT IN.Cooling residual heat recycling system of the present invention, thereby the exhaust air rate of controlling air-introduced machine 14 by switch board 5 can be controlled the cooling velocity of the interior cooling-air inlet of cooling chamber 1 and air circulation speed control workpiece, both can improve the cooling velocity of workpiece, and also avoid workpiece to produce the defects such as crackle and warpage because cooling velocity is uncontrollable; High-temperature gas after cooling workpiece can store heat or rationally utilize through bootstrap system by the heat exchange action of heat exchanger 2 simultaneously, thereby has avoided the waste of cooling residual heat to reach the thermal pollution to environment.
The present invention is not limited to above-described embodiment; every on the basis of technical scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in the scope of protection of the invention.
Claims (5)
1. a casting, forging high efficiency cooling bootstrap system, comprise cooling chamber, heat exchanger, water storage closed circuit, UTILIZATION OF VESIDUAL HEAT IN loop and switch board, it is characterized in that, be provided with guide rail and cooling bench that can slippage on guide rail in described cooling chamber, be respectively equipped with cold air inlet channel and hot-air outlet passageway in described cooling chamber, the described cold air inlet channel air inlet pipe outer with cooling chamber is communicated with and air inlet pipe is provided with intake valve, and the described hot-air outlet passageway escape pipe outer with cooling chamber is communicated with; Be provided with hot-air heat transfer path, water storage transmission channels and UTILIZATION OF VESIDUAL HEAT IN medium transmission channels in described heat exchanger, described escape pipe is communicated with the import of hot-air heat transfer path, the outlet of described hot-air heat transfer path is provided with blast pipe, and described blast pipe is provided with air-introduced machine; Described water storage closed circuit comprises the circulation line that closes be communicated with the import of water storage transmission channels and outlet respectively, and described circulation line is provided with circulating pump, on the circulation line near described circulating pump two ends, is respectively equipped with control valve; The turnover of described UTILIZATION OF VESIDUAL HEAT IN medium transmission channels and outlet are communicated with bootstrap system respectively.
2. casting according to claim 1, forging high efficiency cooling bootstrap system, it is characterized in that, described cold air inlet channel is provided with some air inlets and is arranged at the below of cooling chamber, described hot-air outlet passageway is provided with some exhaust outlets and is arranged at the top of cooling chamber, on described air inlet pipe with near the exhaust outlet of cooling chamber top, is respectively equipped with temperature sensor one and the temperature sensor two be connected with switch board; Described steam outlet pipe be respectively equipped with temperature sensor three and the temperature sensor four be connected with switch board on gland steam exhauster, described air-introduced machine is the frequency converting induced draft fan of controlling by switch board.
3. casting according to claim 2, forging high efficiency cooling bootstrap system, it is characterized in that, the water storage closed circuit of the described water storage transmission channels port of export is provided with the temperature sensor five be connected with switch board, the import of described UTILIZATION OF VESIDUAL HEAT IN transmission channels be respectively equipped with temperature sensor six and the temperature sensor seven be connected with switch board on the pipeline of outlet.
4. casting according to claim 2, forging high efficiency cooling bootstrap system, it is characterized in that, described circulating pump is arranged in parallel two-way on the water storage closed circuit, and circulating pump two ends, every road are respectively equipped with control valve, and described circulating pump and control valve are connected with switch board respectively.
5. casting according to claim 2, forging high efficiency cooling bootstrap system, it is characterized in that, described water storage closed circuit is provided with some Pressure gauges that are connected with switch board, is respectively equipped with the Pressure gauge and the flowmeter that are communicated with switch board on the inlet ductwork of described UTILIZATION OF VESIDUAL HEAT IN transmission channels and export pipeline.
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| CN201310423613.1A CN103471305B (en) | 2013-09-17 | 2013-09-17 | A kind of casting, forging high efficiency cooling bootstrap system |
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| CN201310423613.1A CN103471305B (en) | 2013-09-17 | 2013-09-17 | A kind of casting, forging high efficiency cooling bootstrap system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855304A (en) * | 2016-04-06 | 2016-08-17 | 聊城市金诺节能科技有限公司 | Cooling bed waste heat recycling device |
| CN107511452A (en) * | 2017-09-30 | 2017-12-26 | 山西好利阀机械制造有限公司 | A kind of waste heat recycling type knockout case |
| CN108453211A (en) * | 2018-05-10 | 2018-08-28 | 嘉兴市乍浦杭湾重型机械有限公司 | A kind of cooling device of automobile axle shaft forge die |
| CN108941433A (en) * | 2018-07-14 | 2018-12-07 | 杨传平 | It is a kind of that workpiece can be stablized to hot forging pressure device fixed and that workpiece can be accelerated cooling |
| CN112453349A (en) * | 2020-11-04 | 2021-03-09 | 益阳仪纬科技有限公司 | Metal mold casting forming die cooling device |
| ES2940919A1 (en) * | 2023-02-24 | 2023-05-12 | Univ Madrid Politecnica | Cooling chamber for metallic ingots and procedure for obtaining a metallic ingot (Machine-translation by Google Translate, not legally binding) |
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| ES2940919A1 (en) * | 2023-02-24 | 2023-05-12 | Univ Madrid Politecnica | Cooling chamber for metallic ingots and procedure for obtaining a metallic ingot (Machine-translation by Google Translate, not legally binding) |
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Effective date of registration: 20190104 Address after: 212200 No. 566 Ganglong Road, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Yihaitang Environmental Technology Co., Ltd. Address before: 212200 No. 566 Ganglong Road, Yangzhong Economic Development Zone, Zhenjiang City, Jiangsu Province Patentee before: Jiangsu BAVI Engineering Technology Co., Ltd. |
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