CN102556990B - Device for absorbing heat energy from combustion of yellow phosphorus with heat transfer oil - Google Patents
Device for absorbing heat energy from combustion of yellow phosphorus with heat transfer oil Download PDFInfo
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- CN102556990B CN102556990B CN201110448393.9A CN201110448393A CN102556990B CN 102556990 B CN102556990 B CN 102556990B CN 201110448393 A CN201110448393 A CN 201110448393A CN 102556990 B CN102556990 B CN 102556990B
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Abstract
The invention discloses a device for absorbing heat energy from combustion of yellow phosphorus with heat transfer oil, comprising an oil tank, a yellow phosphorus combustion furnace, a steam generator, an air heater, an evaporator, a circulating pump and a valve that are connected in a loop. Heat transfer oil is used as a heat-conducting medium to absorb the heat energy from combustion of yellow phosphorus and transfer to the evaporator, the steam generator and the air heater so as to prepare concentrated solution or steam or dry air. The device of the invention meets the technological requirements of heat absorption at different temperatures, which remarkably reduces the operation pressure of high-temperature heating system and the safety requirements, and improves the reliabilities of the system and equipment. The heat-conducting medium of the invention can be recycled so as to not only provide the heat needed in the technological process, but also dispense with a special coal-fired boiler, an exhaust-heat boiler and a cooling water device, therefore the cost for absorbing and reusing the heat energy from combustion of yellow phosphorus is greatly reduced, and the energy is saved. The device of the invention has favorable economic, social and environmental benefits.
Description
Technical field
The invention belongs to energy recovery machinery technology, relate to a kind of device of absorbing heat energy from combustion of yellow phosphorus with heat transfer oil.
Background technology
Phosphoric acid and phosphoric acid salt are the important component parts of chemical industry.The production method of phosphoric acid is divided into two kinds of thermal phosphoric acid and phosphoric acid by wet processes.Because thermal phosphoric acid has the advantages such as product concentration is high, impurity is few, be widely used in phosphorous chemical industry enterprise.The technological process of production master operation of thermal phosphoric acid is that yellow phosphorus melting, yellow phosphorus burning and aquation absorb.The method of Chinese patent CN201010127125.2 directly preparing food-grade high-purity phosphoric acid from yellow phosphorus, that liquid phosphorus is under the certain waterhead condition of phosphorus scale tank, in combustion tower constantly phosphorus supply of bottom, liquid phosphorus is burnt under the effect of fed oxygen from air, the Vanadium Pentoxide in FLAKES gas that burning produces, causes negative pressure 10000-15000Pa to enter main absorption tower from tower top by afterbody blower fan.The 1 ton of yellow phosphorus that burns will produce the heat of 24335KJ, and the phosphorus steam of high temperature and polymkeric substance thereof have extremely strong corrodibility with destructive to production units such as combustion tower and interchanger.In order to prevent this corrosion and to destroy, produce, in existing technique, this heat is all taken out of by the dilute phosphoric acid with a large amount of or water coolant conventionally, through heat exchange, by cooling tower or other acid fog absorption tower, is reclaimed phosphoric acid and is purified qualified discharge.Through retrieval, the method that reclaims heat energy generated during combustion of yellow also has:
The phosphatic one-step technology of Chinese patent CN200710049440.6 phosphorus production and device.The high temperature Vanadium Pentoxide in FLAKES gas (1000-1600 degree) that yellow phosphorus burning is produced in this invention sends into waste heat boiler and water carries out heat exchange, and generating high pressure steam flows to phosphorus-melting groove and external application is lived by steam conveying pipe.One ton of yellow phosphorus of every burning can produce the water vapour 6.5-7.0 ton of pressure position 0.4-0.8Mpa, and energy recovery and utilising efficiency reach 90%, Vanadium Pentoxide in FLAKES gas can be cooled to 200-450 ℃.Though this invention can reduce the temperature of Vanadium Pentoxide in FLAKES gas and reach certain heat utilization efficiency, the use that boiler and water coolant are set that utilizes waste heat generating high pressure steam to increase, has increased production cost.
Chinese patent CN01143443.0 heat energy generated during combustion of yellow recovery and use device and thermal phosphoric acid production system.The sealed wall combustion chamber that this invention adopts membrane wall to form replaces the water jacket combustion chamber of former technique.Membrane wall is the integral part of conventional waste heat boiler, as upcast.The steam guiding tube that boiler is separately furnished with drum, downtake, annular lower collecting box and upper header and is connected with drum.Adopt plasma-coated conduct to prevent corrosion resistant coating, thereby phosphorus corrosive medium and combustion tower metal wall are separated, avoid high temperature corrosion effect, thereby allow the wall surface temperature of interchanger to reach 200-500 ℃.The innovative point of its UTILIZATION OF VESIDUAL HEAT IN is that the phosphorus-melting groove that the part steam of recovery is supplied with in self technical process by steam-pipe is used, and produces higher-grade high temperature, high pressure steam production and application altogether, and waste heat recovery rate can reach more than 60%.Although adopt membrane type water chiller, plasma-coated in this invention, but still use water coolant as heat-transfer medium, due to 100 ℃ time, the thermal conductivity of water vapour is 0.0237W/m. ℃, and the thermal conductivity of Mobiltherm605# thermal oil in the time of 100 ℃ is 0.127W/ (m. ℃), be 5.35 times of water vapour.Known, the heat-conducting effect of water is far away not as good as thermal oil.In addition, water is as heat-conducting medium, and temperature is higher, and the saturated vapor pressure of water vapour is higher, higher to the requirement of equipment.Moreover because waste heat boiler is connected with combustion phosphorus equipment, it is equivalent to a high-duty boiler, potential safety hazard is larger, and safety check expense is higher.
Thermal oil has the performance of heat resistanceheat resistant cracking and chemical oxidation, and heat transfer efficiency is good, rapid heat dissipation, and thermostability is fine.Be widely used at present the fields such as exhaust gases of internal combustion engines recovery, fume afterheat generating, semi-conductor generating.Phosphorous chemical industry field has no its utilization.
Summary of the invention
Object of the present invention: in order to overcome the problem existing in prior art, improve the utilization ratio of heat energy, improve the security of production process, reduce heat energy generated during combustion of yellow and reclaim and the cost utilizing, a kind of device of absorbing heat energy from combustion of yellow phosphorus with heat transfer oil is provided.
The present invention is achieved in that
A device for absorbing heat energy from combustion of yellow phosphorus with heat transfer oil, arranges heat absorbing units and heat release unit, it is characterized in that: comprise the chuck that utilizes phosphoric acid workshop yellow phosphorus burning stove, oil tank I, vapour generator, airheater, vaporizer, recycle pump and valve are set; The chuck oil-in of yellow phosphorus burning stove is connected with oil tank I by valve IX, and the chuck oil outlet of yellow phosphorus burning stove is connected with vapour generator, airheater, vaporizer respectively.
Above-described heat absorbing units is to utilize the chuck of phosphoric acid workshop yellow phosphorus burning stove, and oil tank I, oil tank III, recycle pump II and surge tank are separately set; The chuck oil-in of yellow phosphorus burning stove adopts acidproof heat-proof pipe to be connected with valve IX, oil tank I, surge tank successively; The oil-in of oil tank I adopts the circulation of acidproof heat-proof pipe to be connected with the oil-in of recycle pump II, valve X, oil tank III, valve XI, valve XII and oil tank I successively.
Above-described heat release unit, comprises that vapour generator, airheater, vaporizer, oil tank II and recycle pump I form; The oil-in of vapour generator, airheater and vaporizer adopts acidproof heat-proof pipe to be connected with valve VII with the chuck oil outlet of yellow phosphorus burning stove through valve I, valve VIII respectively, the chuck oil outlet of yellow phosphorus burning stove arranges safety valve, and safety valve is connected with surge tank; The oil outlet of vapour generator, airheater and vaporizer is connected with oil tank II with valve V through valve III, valve IV respectively, oil tank II adopts acidproof heat-proof pipe to be connected with surge tank by valve II, and the oil outlet of oil tank II is connected with the pipe connecting between valve XII successively through valve VI, recycle pump I and valve XI.
Above-described vapour generator, airheater and vaporizer, arrange one or more with one or more.
Above-described valve, adopts acidproof heat-proof valve, comprise stainless valve, steel valve and or Plastic valve more than one.
Above-described acidproof heat-proof pipe, comprise stainless steel tube, weldless steel tube and or plastics tubing more than one.
The principle of work of apparatus of the present invention:
Open valve VII and/or valve I and/or valve VIII, open valve II, valve V and/or valve III and/or valve IV, close other valve, open valve IX, in the chuck of the thermal oil inflow yellow phosphorus burning stove of oil tank I, absorb heat energy generated during combustion of yellow, control thermal oil flow velocity, obtain the high temperature heat conductive oil of setting, thermal oil through heating flows into vaporizer and/or vapour generator and/or airheater by the chuck oil outlet of yellow phosphorus burning stove, the heat energy of the absorption of air heating thermal oil adding in the water that needing of adding in vaporizer adds in concentrated liquid and/or vapour generator and/or airheater, then flow in oil tank II.Open valve VI and valve XII or valve XI, start recycle pump I the thermal oil of oil tank II is conveyed into oil tank I or oil tank III, reach circulation and absorb heat energy generated during combustion of yellow.The stoste or mother liquor and/or agricultural or life or high temperature heat conductive oil and/or steam or the dry air for other industrial production that utilize ordinary method concentrating chemical or foodstuffs industry to produce.
Advantage of the present invention and positively effect:
1, the thermal oil temperature range of using in the present invention is 400 ℃ of <, can absorb the heat energy of high, medium and low temperature, improves the rate of recovery of heat energy.
2, the thermal oil using in the present invention can meet differing temps heating, cooling processing requirement in wide temperature range, or with same thermal oil, realizes the processing requirement that differing temps is absorbed heat in same system simultaneously.Can reduce the complicacy of system and operation.
3, the present invention is usingd thermal oil as heat-conducting medium, because thermal oil initial boiling point will exceed several times than evaporation of water temperature, thermal oil does not still gasify and keeps normal pressure under 400 ℃ of conditions, and saturated vapor pressure during 370 ℃ of water vapour is up to 21.03MPa, therefore can effectively avoid causing superpressure hidden danger because of phase transformation gasification, greatly reduce working pressure and the safety requirements of heat system, the reliability of raising system and equipment.
4, the present invention is usingd thermal oil as heat-conducting medium, absorb yellow phosphorus burning liberated heat and be transported to vaporizer and/or vapour generator or airheater heat release after, return to oil tank and through circulating oil pump, be extracted into that high-order low temperature heat conduction oil tank relaying is continuous to be used.Not only can solve heat required in technical process, and save special-purpose coal firing boiler, waste heat boiler and chilled water unit, greatly reduce the cost that heat energy generated during combustion of yellow reclaims and recycles, saved the energy, there is good economic benefit, social benefit and environmental benefit.
Accompanying drawing explanation
Accompanying drawing 1: for condensed phosphate salt mother liquor, dry phosphoric acid salt with prepare the apparatus structure schematic diagram of steam.
Accompanying drawing 2: be the apparatus structure schematic diagram of condensed phosphate salt mother liquor.
Accompanying drawing 3: be condensed phosphate salt mother liquor and dry phosphatic apparatus structure schematic diagram.Accompanying drawing sign: 1-surge tank; 2-oil tank I; 3-safety valve; 4-valve I; 5-vapour generator; 6-valve II; 7-valve III; 8-airheater; 9-valve IV; 10-valve V; 11-oil tank II; 12-recycle pump I; 13-valve VI; 14-vaporizer; 15-valve VII; 16-valve VIII; 17-yellow phosphorus burning stove; 18-valve IX; 19-recycle pump II; 20-valve X; 21-oil tank III; 22-valve XI; 23-valve XII.
Embodiment
Below in conjunction with accompanying drawing with by embodiment, the invention will be further described, and embodiment is only the present invention is described and is never limited to the present invention.
Embodiment mono-: condensed phosphate salt mother liquor, dry phosphoric acid salt and prepare the device of steam
As Fig. 1, a kind of device of absorbing heat energy from combustion of yellow phosphorus with heat transfer oil, utilizes the chuck of phosphoric acid workshop yellow phosphorus burning stove 17, at the chuck oil-in of yellow phosphorus burning stove 17, adopts stainless steel tube to be connected successively with valve IX18, oil tank I2, surge tank 1; The oil-in of oil tank I2 adopts stainless steel tube circulation to be connected with the oil-in of recycle pump II19, valve X20, oil tank III21, valve XI22, valve XII23 and oil tank I2 successively.The oil-in of vapour generator 5, airheater 8 and vaporizer 14 adopts stainless steel tube to be connected with valve VII15 with the chuck oil outlet of yellow phosphorus burning stove 17 through valve I4, valve VIII16 respectively, the chuck oil outlet of yellow phosphorus burning stove 17 arranges safety valve 3, and safety valve 3 is connected with surge tank 1; The oil outlet of vapour generator 5, airheater 8 and vaporizer 14 is connected with oil tank II11 with valve V10 through valve III7, valve IV9 respectively, oil tank II11 adopts stainless steel tube to be connected with surge tank 1 by valve II6, and the oil outlet of oil tank II11 adopts stainless steel tube to be connected successively with the pipe connecting between valve XII23 through valve VI13, recycle pump I12 and valve XI22.
During work, biphenyl/Biphenyl Ether eutectic mixture type thermal oil is added in oil tank I2, open valve IX18, valve VII15, valve I4, valve VIII16, valve II6, valve V10, valve III7 and valve IV9, close other valve, in the chuck of the thermal oil inflow yellow phosphorus burning stove 17 of oil tank I2, absorb heat energy generated during combustion of yellow, control thermal oil flow velocity, obtain 350 ℃ of high temperature heat conductive oils setting, thermal oil through heating flows into vaporizer 14 by the chuck oil outlet of yellow phosphorus burning stove 3, vapour generator 5 and airheater 8, phosphoric acid salt liquid in concentration evaporator 14, the air adding in water and air well heater 8 in evaporated vapor producer 5, then flow in oil tank II11.Open valve VI13 and valve XII23, start recycle pump I12 the thermal oil of oil tank II11 is conveyed into oil tank I2, reach circulation and absorb heat energy generated during combustion of yellow.Utilize steam and phosphatic dry for ordinary method condensed phosphate salt mother liquor, life or other industrial production.
Embodiment bis-: the device of condensed phosphate salt mother liquor
Utilize the chuck of phosphoric acid workshop yellow phosphorus burning stove 17, at the chuck oil-in of yellow phosphorus burning stove 17, adopt weldless steel tube to be connected successively with valve IX18, oil tank I2, surge tank 1; The oil-in of oil tank I2 adopts weldless steel tube circulation to be connected with the oil-in of recycle pump II19, valve X20, oil tank III21, valve XI22, valve XII23 and oil tank I2 successively.The oil-in of two vaporizers 14 adopts weldless steel tube to be connected through two valve VII15 with the chuck oil outlet of yellow phosphorus burning stove 17 respectively, and the chuck oil outlet of yellow phosphorus burning stove 17 arranges safety valve 3, and safety valve 3 is connected with surge tank 1; The oil outlet of two vaporizers 14 is connected with oil tank II11 through two valve V10 respectively, oil tank II11 adopts weldless steel tube to be connected with surge tank 1 by valve II6, and the oil outlet of oil tank II11 adopts weldless steel tube to be connected successively with the pipe connecting between valve XII23 through valve VI13, recycle pump I12 and valve XI22.
During work, alkyl biphenyl type thermal oil is added in oil tank I2, open two valve VII15, two valve V10 and valve II6, close other valve, open valve IX18, in the chuck of the thermal oil inflow yellow phosphorus burning stove 3 of oil tank I 2, absorb heat energy generated during combustion of yellow, control thermal oil flow velocity, obtain 220 ℃ of high temperature heat conductive oils setting, thermal oil through heating flows into respectively two vaporizers 14 by the chuck oil outlet of yellow phosphorus burning stove 17, in two vaporizers 14, phosphoric acid salt mother liquor absorbs the heat energy of heating thermal oil, and then thermal oil flows in oil tank II11.Open valve VI13 and valve XII23, start recycle pump I12 the thermal oil of oil tank II11 is conveyed into oil tank I2 or oil tank III21, reach circulation and absorb heat energy generated during combustion of yellow, obtain condensed phosphate salt mother liquor.
Embodiment tri-: condensed phosphate salt mother liquor and dry phosphatic device
As Fig. 3, a kind of device of absorbing heat energy from combustion of yellow phosphorus with heat transfer oil, utilizes the chuck of phosphoric acid workshop yellow phosphorus burning stove 17, at the chuck oil-in of yellow phosphorus burning stove 17, adopts weldless steel tube to be connected successively with valve IX18, oil tank I2, surge tank 1; The oil-in of oil tank I2 adopts weldless steel tube circulation to be connected with the oil-in of recycle pump II19, valve X20, oil tank III21, valve XI22, valve XII23 and oil tank I2 successively.The oil-in of airheater 8 and vaporizer 14 adopts weldless steel tube to be connected with valve VIII15 with the chuck oil outlet of yellow phosphorus burning stove 17 through valve VIII16 respectively, the chuck oil outlet of yellow phosphorus burning stove 17 arranges safety valve 3, and safety valve 3 is connected with surge tank 1; The oil outlet of airheater 8 and vaporizer 14 is connected with oil tank II11 with valve V10 through valve IV9 respectively, oil tank II11 adopts weldless steel tube to be connected with surge tank 1 by valve II6, and the oil outlet of oil tank II11 adopts plastics tubing to be connected successively with the pipe connecting between valve XII23 through valve VI13, recycle pump I12 and valve XI22.
During work, biphenyl/Biphenyl Ether eutectic mixture type thermal oil is added in oil tank I2, open valve IX18, valve VII15, valve VIII16, valve II6, valve V10 and valve IV9, close other valve, in the chuck of the thermal oil inflow yellow phosphorus burning stove 17 of oil tank I2, absorb heat energy generated during combustion of yellow, control thermal oil flow velocity, obtain 300 ℃ of high temperature heat conductive oils setting, thermal oil through heating flows into vaporizer 14 and airheater 8 by the chuck oil outlet of yellow phosphorus burning stove 17, the air adding in water and air well heater 8 in concentration evaporator 14 in phosphoric acid salt liquid, then flow in oil tank II11.Open valve VI13 and valve XII23, start recycle pump I12 the thermal oil of oil tank II11 is conveyed into oil tank I2, reach circulation and absorb heat energy generated during combustion of yellow.Utilize ordinary method condensed phosphate salt mother liquor and dry phosphoric acid salt.
Claims (2)
1. the device of an absorbing heat energy from combustion of yellow phosphorus with heat transfer oil, heat absorbing units and heat release unit are set, it is characterized in that: comprise the chuck that utilizes phosphoric acid workshop yellow phosphorus burning stove (17), oil tank I (2), vapour generator (5), airheater (8), vaporizer (14), recycle pump and valve are set; The chuck oil-in of yellow phosphorus burning stove (17) is connected with oil tank I (2), and the chuck oil outlet of yellow phosphorus burning stove (17) is connected with vapour generator (5), airheater (8), vaporizer (14) respectively;
Described heat absorbing units is the chuck of yellow phosphorus burning stove (17), and oil tank I (2), oil tank III (21), recycle pump II (19) and surge tank (1) are separately set; The chuck oil-in of yellow phosphorus burning stove (17) adopts acidproof heat-proof pipe to be connected successively with valve IX (18), oil tank I (2), surge tank (1); The oil-in of oil tank I (2) adopts the circulation of acidproof heat-proof pipe to be connected with the oil-in of recycle pump II (19), valve X (20), oil tank III (21), valve XI (22), valve XII (23) and oil tank I (2) successively;
Described heat release unit, comprises that vapour generator (5), airheater (8), vaporizer (14), oil tank II (11) and recycle pump I (12) form; The oil-in of vapour generator (5), airheater (8) and vaporizer (14) passes through respectively valve I (4), valve VIII (16) and valve VII (15) and adopts acidproof heat-proof pipe to be connected with the chuck oil outlet of yellow phosphorus burning stove (17), the chuck oil outlet of yellow phosphorus burning stove (17) arranges safety valve (3), and safety valve (3) is connected with surge tank (1); The oil outlet of vapour generator (5), airheater (8) and vaporizer (14) passes through respectively valve III (7), valve IV (9) and valve V (5) and is connected with oil tank II (11), oil tank II (11) adopts acidproof heat-proof pipe to be connected with surge tank (1) by valve II (6), and the oil outlet of oil tank II (11) is connected with the pipe connecting between valve XII (23) successively through valve VI (13), recycle pump I (12) and valve XI (22).
2. the device of absorbing heat energy from combustion of yellow phosphorus with heat transfer oil according to claim 1, is characterized in that: described vapour generator (5), airheater (8) and vaporizer (14), arrange one or more with one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110448393.9A CN102556990B (en) | 2011-12-29 | 2011-12-29 | Device for absorbing heat energy from combustion of yellow phosphorus with heat transfer oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110448393.9A CN102556990B (en) | 2011-12-29 | 2011-12-29 | Device for absorbing heat energy from combustion of yellow phosphorus with heat transfer oil |
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| CN102556990A CN102556990A (en) | 2012-07-11 |
| CN102556990B true CN102556990B (en) | 2014-02-05 |
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| CN201110448393.9A Expired - Fee Related CN102556990B (en) | 2011-12-29 | 2011-12-29 | Device for absorbing heat energy from combustion of yellow phosphorus with heat transfer oil |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103322831A (en) * | 2013-06-18 | 2013-09-25 | 重庆海洲化学品有限公司 | Method for producing hot gas by using conduction oil waste heat |
| CN107200314B (en) * | 2017-06-27 | 2018-05-29 | 贵州东晟捷能科技有限公司 | A kind of thermal phosphoric acid and micro- absorb of polyphosphoric acid combine the recoverable method of heat and its device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4603039A (en) * | 1983-05-13 | 1986-07-29 | Hoechst Aktiengesellschaft | Process for making phosphorus pentoxide and optionally phosphoric acid with utilization of the reaction heat |
| CN101117215A (en) * | 2007-07-03 | 2008-02-06 | 成都市峨眉化工工程设计研究所 | One-step method and device for production of phosphonate by yellow phosphorus |
| CN201032141Y (en) * | 2007-03-30 | 2008-03-05 | 云南功业锅炉有限公司 | Yellow phosphorus tail gas combustion utilizing boiler |
| CN202415163U (en) * | 2011-12-29 | 2012-09-05 | 广西利达磷化工有限公司 | Device for allowing heat transfer oils to absorb combustion heat of yellow phosphorus |
-
2011
- 2011-12-29 CN CN201110448393.9A patent/CN102556990B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4603039A (en) * | 1983-05-13 | 1986-07-29 | Hoechst Aktiengesellschaft | Process for making phosphorus pentoxide and optionally phosphoric acid with utilization of the reaction heat |
| CN201032141Y (en) * | 2007-03-30 | 2008-03-05 | 云南功业锅炉有限公司 | Yellow phosphorus tail gas combustion utilizing boiler |
| CN101117215A (en) * | 2007-07-03 | 2008-02-06 | 成都市峨眉化工工程设计研究所 | One-step method and device for production of phosphonate by yellow phosphorus |
| CN202415163U (en) * | 2011-12-29 | 2012-09-05 | 广西利达磷化工有限公司 | Device for allowing heat transfer oils to absorb combustion heat of yellow phosphorus |
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