CN102952562B - Petronaphthalene rectification reflux temperature control device and control method thereof - Google Patents
Petronaphthalene rectification reflux temperature control device and control method thereof Download PDFInfo
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Abstract
The invention relates to the field of petronaphthalene rectification technology, in particular to a petronaphthalene rectification reflux temperature control device and a control method thereof; the petronaphthalene rectification reflux temperature control device comprises a rectification tower, a condenser, a reflux tank, a tower top reflux pump, a naphthalene gas absorption tank and a naphthalene gas absorption tower; the upper end of the naphthalene gas absorption tank and the lower end of the naphthalene gas absorption tower are fixedly connected together and communicated with each other, a rectification tower air outlet is arranged at the top of the rectification tower, a rectification tower liquid inlet is arranged in the upper part of the rectification tower, the rectification tower air outlet and a tube pass inlet of the condenser are fixedly connected together by a first pipeline, and a tube pass outlet of the condenser and a top inlet of the reflux tank are fixedly connected together by a second pipeline. Through the combination of the rectification tower, the condenser, the reflux tank, the tower top reflux pump, the naphthalene gas absorption tank and the naphthalene gas absorption tower, the purposes of easily controlling the reflux temperature and recovering naphthalene gas can be realized, the petroleum naphthalene refined reflux temperature control device and the control method thereof have the characteristics of easily controlling the reflux temperature and being environment-friendly, the production efficiency is improved and the production cost is saved.
Description
Technical field
The present invention relates to petronaphthalene distillation technology field, is a kind of petronaphthalene rectifying reflux temperature control device and control method thereof.
Background technology
Under petronaphthalene normal temperature, be white plates crystal, there is special odor, volatile, easily distillation, density 1.162,80.5 ℃ of fusing points, 217.9 ℃ of boiling points, water insoluble, be dissolved in ethanol and ether etc.Adopt rectifier unit when ethylene bottom oil is carried out to cutting and separating, because petronaphthalene component is wherein because of the character that high temperature is easily vaporized, low temperature easily solidifies, therefore reflux temperature control difficulty is larger.
Summary of the invention
The invention provides a kind of petronaphthalene rectifying reflux temperature control device and control method thereof, overcome the deficiency of above-mentioned prior art, the uppity problem of reflux temperature when it can effectively solve ethylene bottom oil and carries out cutting and separating.
One of technical scheme of the present invention realizes by following measures: a kind of petronaphthalene rectifying reflux temperature control device, comprises rectifying tower, condenser, return tank, trim the top of column pump, naphthalene aspiration closed cans and naphthalene gas absorption tower, the lower end on the He Naiqi absorption tower, upper end of naphthalene aspiration closed cans is fixed together and communicates, at the top of rectifying tower, there is rectifying tower air outlet, on the top of rectifying tower, there is rectifying tower fluid inlet, the tube side import of rectifying tower air outlet and condenser is fixed together by the first pipeline, the tube side outlet of condenser and the top inlet of return tank are fixed together by the second pipeline, the import of the outlet at bottom of return tank and trim the top of column pump is fixed together by the 3rd pipeline, trim the top of column pump outlet and rectifying tower fluid inlet are fixed together by the 4th pipeline, in the air outlet, You Naiqi absorption tower, top on naphthalene gas absorption tower, inner chamber top on naphthalene gas absorption tower is installed with spray thrower, inner chamber middle part on naphthalene gas absorption tower is installed with filler, in filler, be installed with steam coils, the top inlet of the top exit of return tank and naphthalene aspiration closed cans is fixed together by the 5th pipeline, on the outlet at bottom of naphthalene aspiration closed cans, be fixedly connected with the 6th pipeline, in the import of spray thrower, be installed with the 7th pipeline, the outer end of the 7th pipeline is positioned at outside naphthalene gas absorption tower, import at steam coils is fixedly connected with respectively the 8th pipeline and the 9th pipeline with exporting, the outer end of the 8th pipeline and the 9th pipeline is positioned at outside naphthalene aspiration closed cans, in the shell side import of condenser, be fixedly connected with the tenth pipeline, in the shell side outlet of condenser, be fixedly connected with the 11 pipeline, on the tenth pipeline, be installed with respectively thermometer and valve, on the second line, be installed with thermometer.
The further optimization and/or improvements to one of foregoing invention technical scheme below:
There are hot-water cylinder, hot water circulating pump and water cooler in the above-mentioned outside at condenser; In hot-water cylinder, be installed with thermal oil coil pipe, in the import of thermal oil coil pipe, be fixedly connected with respectively the 12 pipeline and the 13 pipeline with exporting, the outer end of the 12 pipeline and the 13 pipeline is positioned at outside hot-water cylinder; The outlet at bottom of hot-water cylinder and the import of hot water circulating pump are fixed together by the 14 pipeline, the tube side import of hot water circulation pump outlet and water cooler is fixed together by the 15 pipeline, the tube side outlet of water cooler and the shell side import of condenser are fixed together by the tenth pipeline, the shell side outlet of condenser and the top inlet of hot-water cylinder are fixed together by the 11 pipeline, in the shell side import of water cooler, be fixedly connected with the 16 pipeline, in the shell side outlet of water cooler, be fixedly connected with the 17 pipeline.
Above-mentionedly on the 4th pipeline, be installed with the 18 pipeline, on air outlet, naphthalene gas absorption tower, be fixedly connected with the 19 pipeline, on the 19 pipeline, be installed with vacuum pump.
Two of technical scheme of the present invention realizes by following measures: a kind of control method of petronaphthalene rectifying reflux temperature control device, carry out in the steps below: the first step, by the 7th pipeline, in the spray thrower in naphthalene gas absorption tower, pass into the naphthalene gas absorption liquid that is less than 20% containing naphthalene mass percent, naphthalene gas absorption liquid enters in naphthalene aspiration closed cans and by the 6th pipeline after by the spray thrower ejection in naphthalene gas absorption tower and discharges, second step passes into steam by the 8th pipeline in steam coils, and then steam flows out by the 9th pipeline, the 3rd step passes into hot water by the tenth pipeline in the shell side of condenser, and then hot water flows out by the 11 pipeline, the 4th step, naphthalene steam in rectifying tower enters by the first pipeline in the tube side of condenser, naphthalene steam carries out heat exchange with the hot water in condenser shell side and is separated into gas-liquid mixed phase, gas-liquid mixed enters in return tank by the second pipeline, the temperature out control that gas-liquid mixed goes out condenser tube side is mutually 80 ℃ to 90 ℃, gas-liquid mixed enters mutually and in return tank, is separated into gas phase and liquid phase, liquid phase is successively by the 3rd pipeline, trim the top of column pump and the 4th pipeline enter in rectifying tower, gas phase in return tank enters in naphthalene gas absorption tower by the 5th pipeline and naphthalene aspiration closed cans successively, gas phase in naphthalene gas absorption tower is sprayed the reverse generation mass-and heat-transfer that contacts of the naphthalene gas absorption liquid getting off with spray thrower in naphthalene gas absorption tower and is reacted, the 5th step, the gas phase that occurs not absorbed by naphthalene gas absorption liquid after mass-and heat-transfer reaction is discharged by the 19 pipeline and vacuum pump, absorbs in the naphthalene gas absorption liquid inflow naphthalene aspiration closed cans after gas phase and discharges by the 6th pipeline.
Two the further optimization and/or improvements to foregoing invention technical scheme below:
The inlet temperature that above-mentioned hot water enters condenser shell side is 80 ℃, and the temperature out that hot water goes out condenser shell side is 80 ℃ to 90 ℃.
Above-mentioned vapor temperature is 120 ℃ to 170 ℃, and vapor pressure is 0.3Mpa to 0.8Mpa.
Above-mentioned rectifying tower pressure on top surface is-70kpa is to-92kpa.
Above-mentioned naphthalene gas absorption liquid is aromatic hydrocarbon oil washing lotion.
Hot water in above-mentioned condenser shell side by the 11 pipeline, enter in hot-water cylinder and with hot-water cylinder in thermal oil coil pipe in thermal oil carry out heat exchange, hot water in hot-water cylinder after heat exchange enters in the tube side of water cooler by the 14 pipeline, hot water circulating pump and the 15 pipeline successively, after recirculated water heat exchange in hot water in water cooler tube side and water cooler shell side, by the tenth pipeline, enter in the tube side of condenser, hot water forms circulation in the tube side of condenser.
The present invention is used in conjunction with by rectifying tower, condenser, return tank, trim the top of column pump, naphthalene aspiration closed cans and naphthalene gas absorption tower, realized the object that reflux temperature is easy to control and reclaim naphthalene gas, have the advantages that to be easy to control reflux temperature and environmental protection, improve production efficiency, saved production cost.
Accompanying drawing explanation
Accompanying drawing 1 is process flow diagram of the present invention.
Coding in accompanying drawing is respectively: 1 is rectifying tower, 2 is condenser, 3 is return tank, 4 is trim the top of column pump, 5 is naphthalene aspiration closed cans, 6 is naphthalene gas absorption tower, 7 is the first pipeline, 8 is the second pipeline, 9 is the 3rd pipeline, 10 is the 4th pipeline, 11 is spray thrower, 12 is filler, 13 is steam coils, 14 is the 5th pipeline, 15 is the 6th pipeline, 16 is the 7th pipeline, 17 is the 8th pipeline, 18 is the 9th pipeline, 19 is the tenth pipeline, 20 is the 11 pipeline, 21 is valve, 22 is hot-water cylinder, 23 is hot water circulating pump, 24 is water cooler, 25 is thermal oil coil pipe, 26 is the 12 pipeline, 27 is the 13 pipeline, 28 is the 14 pipeline, 29 is the 15 pipeline, 30 is the 16 pipeline, 31 is the 17 pipeline, 32 is the 18 pipeline, 33 is the 19 pipeline.
Embodiment
The present invention is not subject to the restriction of following embodiment, can determine concrete embodiment according to technical scheme of the present invention and practical situation.
Embodiment 1, this petronaphthalene rectifying reflux temperature control device, comprises rectifying tower 1, condenser 2, return tank 3, trim the top of column pump 4, naphthalene aspiration closed cans 5 and naphthalene gas absorption tower 6, the lower end on the He Naiqi absorption tower, upper end 6 of naphthalene aspiration closed cans 5 is fixed together and communicates, at the top of rectifying tower 1, there is rectifying tower air outlet, on the top of rectifying tower 1, there is rectifying tower fluid inlet, the tube side import of rectifying tower air outlet and condenser 2 is fixed together by the first pipeline 7, the tube side outlet of condenser 2 and the top inlet of return tank 3 are fixed together by the second pipeline 8, the import of the outlet at bottom of return tank 3 and trim the top of column pump 4 is fixed together by the 3rd pipeline 9, the outlet of trim the top of column pump 4 and rectifying tower fluid inlet are fixed together by the 4th pipeline 10, in the air outlet, You Naiqi absorption tower, top on naphthalene gas absorption tower 6, inner chamber top on naphthalene gas absorption tower 6 is installed with spray thrower 11, inner chamber middle part on naphthalene gas absorption tower 6 is installed with filler 12, in filler 12, be installed with steam coils 13, the top inlet of the top exit of return tank 3 and naphthalene aspiration closed cans 5 is fixed together by the 5th pipeline 14, on the outlet at bottom of naphthalene aspiration closed cans 5, be fixedly connected with the 6th pipeline 15, in the import of spray thrower 11, be installed with the 7th pipeline 16, the outer end of the 7th pipeline 16 is positioned at outside naphthalene gas absorption tower 6, import at steam coils 13 is fixedly connected with respectively the 8th pipeline 17 and the 9th pipeline 18 with exporting, the outer end of the 8th pipeline 17 and the 9th pipeline 18 is positioned at outside naphthalene aspiration closed cans 5, in the shell side import of condenser 2, be fixedly connected with the tenth pipeline 19, in the shell side outlet of condenser 2, be fixedly connected with the 11 pipeline 20, on the tenth pipeline 19, be installed with respectively thermometer and valve 21, on the second line, 8 are installed with thermometer.
Embodiment 2, is with the difference of embodiment 1: in the outside of condenser 2, have hot-water cylinder 22, hot water circulating pump 23 and water cooler 24, in hot-water cylinder 22, be installed with thermal oil coil pipe 25, the outer end that is fixedly connected with respectively the 12 pipeline 26 and the 13 pipeline 27, the 12 pipelines 26 and the 13 pipeline 27 in the import of thermal oil coil pipe 25 and outlet is positioned at outside hot-water cylinder 22, the import of the outlet at bottom of hot-water cylinder 22 and hot water circulating pump 23 is fixed together by the 14 pipeline 28, the tube side import of the outlet of hot water circulating pump 23 and water cooler 24 is fixed together by the 15 pipeline 29, the tube side outlet of water cooler 24 and the shell side import of condenser 2 are fixed together by the tenth pipeline 19, the shell side outlet of condenser 2 and the top inlet of hot-water cylinder 22 are fixed together by the 11 pipeline 20, in the shell side import of water cooler 24, be fixedly connected with the 16 pipeline 30, in the shell side outlet of water cooler 24, be fixedly connected with the 17 pipeline 31.
Embodiment 3, is with the difference of embodiment 1 and embodiment 2: on the 4th pipeline 10, be installed with the 18 pipeline 32, on 6 air outlets, naphthalene gas absorption tower, be fixedly connected with the 19 pipeline 33, on the 19 pipeline 33, be installed with vacuum pump.Like this, occur by the gas phase of naphthalene gas absorption liquid absorption, by the 19 pipeline 33 and vacuum pump, not discharged after mass-and heat-transfer reaction.
Embodiment 4, a kind of control method of petronaphthalene rectifying reflux temperature control device, carry out in the steps below: the first step, by the 7th pipeline 16, in the spray thrower 11 in naphthalene gas absorption tower 6, pass into the naphthalene gas absorption liquid that is less than 20% containing naphthalene mass percent, naphthalene gas absorption liquid enters in naphthalene aspiration closed cans 5 and by the 6th pipeline 15 and discharges after being sprayed by the spray thrower 11 in naphthalene gas absorption tower 6, second step passes into steam by the 8th pipeline 17 in steam coils 13, and then steam flows out by the 9th pipeline 18, the 3rd step passes into hot water by the tenth pipeline 19 in the shell side of condenser 2, and then hot water flows out by the 11 pipeline 20, the 4th step, naphthalene steam in rectifying tower 1 enters in the tube side of condenser 2 by the first pipeline 7, naphthalene steam carries out heat exchange with the hot water in condenser 2 shell sides and is separated into gas-liquid mixed phase, gas-liquid mixed enters in return tank 3 by the second pipeline 8, the temperature out control that gas-liquid mixed goes out condenser 2 tube sides is mutually 80 ℃ to 90 ℃, gas-liquid mixed enters mutually and in return tank 3, is separated into gas phase and liquid phase, liquid phase is successively by the 3rd pipeline 9, trim the top of column pump 4 and the 4th pipeline 10 enter in rectifying tower 1, gas phase in return tank 3 enters in naphthalene gas absorption tower 6 by the 5th pipeline 14 and naphthalene aspiration closed cans 5 successively, the reverse generation mass-and heat-transfer that contacts of naphthalene gas absorption liquid that gas phase in naphthalene gas absorption tower 6 is sprayed with spray thrower 11 in naphthalene gas absorption tower 6 reacts, the 5th step, the gas phase that occurs not absorbed by naphthalene gas absorption liquid after mass-and heat-transfer reaction is discharged by the 19 pipeline 33 and vacuum pump, absorbs in the naphthalene gas absorption liquid inflow naphthalene aspiration closed cans 5 after gas phase and discharges by the 6th pipeline 15.The reverse generation mass-and heat-transfer that contacts of naphthalene gas absorption liquid spraying with spray thrower 11 in naphthalene gas absorption tower 6 by the gas phase in naphthalene gas absorption tower 6 reacts, and has prevented that naphthalene steam from being carried secretly to vacuum pump, cooling rear obstruction vacuum pump inlet; By pass into steam in the 8th pipeline 17, prevent gas phase crystallization in filler.
Embodiment 5, as the optimization of above-described embodiment: the inlet temperature that hot water enters condenser 2 shell sides is 80 ℃, and the temperature out that hot water goes out condenser 2 shell sides is 80 ℃ to 90 ℃.
Embodiment 6, as the optimization of above-described embodiment: vapor temperature is 120 ℃ to 170 ℃, and vapor pressure is 0.3Mpa to 0.8Mpa.
Embodiment 7, as the optimization of above-described embodiment: rectifying tower 1 tower top pressure is-70kpa is to-92kpa.
Embodiment 8, as the optimization of above-described embodiment: naphthalene gas absorption liquid is aromatic hydrocarbon oil washing lotion.
Embodiment 9, as the optimization of above-described embodiment: the hot water in condenser 2 shell sides by the 11 pipeline 20, enter in hot-water cylinder 22 and with hot-water cylinder 22 in thermal oil coil pipe 25 in thermal oil carry out heat exchange, hot water in hot-water cylinder 22 after heat exchange enters in the tube side of water cooler 24 by the 14 pipeline 28, hot water circulating pump the 23 and the 15 pipeline 29 successively, after recirculated water heat exchange in hot water in water cooler 24 tube sides and water cooler 24 shell sides, by the tenth pipeline 19, enter in the tube side of condenser 24, hot water forms circulation in the tube side of condenser 2.During driving, by the 12 pipeline 26, to passing into thermal oil in thermal oil coil pipe 25, the hot water in hot-water cylinder 22 is heated, until the tower top of rectifying tower 1, producing naphthalene returns while heating up in a steamer, close gradually heat-conducting oil heating, enable recirculated water in water cooler 24 and maintain hot water to enter condenser 2 shell side inlet temperatures be 80 ℃.
Above technical characterictic has formed embodiments of the invention, and it has stronger adaptability and implementation result, can increase and decrease according to actual needs non-essential technical characterictic, meets the demand of different situations.
Claims (20)
1. a petronaphthalene rectifying reflux temperature control device, is characterized in that comprising rectifying tower, condenser, return tank, trim the top of column pump, naphthalene aspiration closed cans and naphthalene gas absorption tower, the lower end on the He Naiqi absorption tower, upper end of naphthalene aspiration closed cans is fixed together and communicates, at the top of rectifying tower, there is rectifying tower air outlet, on the top of rectifying tower, there is rectifying tower fluid inlet, the tube side import of rectifying tower air outlet and condenser is fixed together by the first pipeline, the tube side outlet of condenser and the top inlet of return tank are fixed together by the second pipeline, the import of the outlet at bottom of return tank and trim the top of column pump is fixed together by the 3rd pipeline, trim the top of column pump outlet and rectifying tower fluid inlet are fixed together by the 4th pipeline, in the air outlet, You Naiqi absorption tower, top on naphthalene gas absorption tower, inner chamber top on naphthalene gas absorption tower is installed with spray thrower, inner chamber middle part on naphthalene gas absorption tower is installed with filler, in filler, be installed with steam coils, the top inlet of the top exit of return tank and naphthalene aspiration closed cans is fixed together by the 5th pipeline, on the outlet at bottom of naphthalene aspiration closed cans, be fixedly connected with the 6th pipeline, in the import of spray thrower, be installed with the 7th pipeline, the outer end of the 7th pipeline is positioned at outside naphthalene gas absorption tower, import at steam coils is fixedly connected with respectively the 8th pipeline and the 9th pipeline with exporting, the outer end of the 8th pipeline and the 9th pipeline is positioned at outside naphthalene aspiration closed cans, in the shell side import of condenser, be fixedly connected with the tenth pipeline, in the shell side outlet of condenser, be fixedly connected with the 11 pipeline, on the tenth pipeline, be installed with respectively thermometer and valve, on the second line, be installed with thermometer.
2. petronaphthalene rectifying reflux temperature control device according to claim 1, is characterized in that there are hot-water cylinder, hot water circulating pump and water cooler in the outside of condenser; In hot-water cylinder, be installed with thermal oil coil pipe, in the import of thermal oil coil pipe, be fixedly connected with respectively the 12 pipeline and the 13 pipeline with exporting, the outer end of the 12 pipeline and the 13 pipeline is positioned at outside hot-water cylinder; The outlet at bottom of hot-water cylinder and the import of hot water circulating pump are fixed together by the 14 pipeline, the tube side import of hot water circulation pump outlet and water cooler is fixed together by the 15 pipeline, the tube side outlet of water cooler and the shell side import of condenser are fixed together by the tenth pipeline, the shell side outlet of condenser and the top inlet of hot-water cylinder are fixed together by the 11 pipeline, in the shell side import of water cooler, be fixedly connected with the 16 pipeline, in the shell side outlet of water cooler, be fixedly connected with the 17 pipeline.
3. petronaphthalene rectifying reflux temperature control device according to claim 1 and 2, it is characterized in that being installed with the 18 pipeline on the 4th pipeline, on air outlet, naphthalene gas absorption tower, be fixedly connected with the 19 pipeline, on the 19 pipeline, be installed with vacuum pump.
4. one kind according to the control method of the petronaphthalene rectifying reflux temperature control device described in claim 1 or 2 or 3, it is characterized in that carrying out in the steps below: the first step, by the 7th pipeline, in the spray thrower in naphthalene gas absorption tower, pass into the naphthalene gas absorption liquid that is less than 20% containing naphthalene mass percent, naphthalene gas absorption liquid enters in naphthalene aspiration closed cans and by the 6th pipeline after by the spray thrower ejection in naphthalene gas absorption tower and discharges, second step passes into steam by the 8th pipeline in steam coils, and then steam flows out by the 9th pipeline, the 3rd step passes into hot water by the tenth pipeline in the shell side of condenser, and then hot water flows out by the 11 pipeline, the 4th step, naphthalene steam in rectifying tower enters by the first pipeline in the tube side of condenser, naphthalene steam carries out heat exchange with the hot water in condenser shell side and is separated into gas-liquid mixed phase, gas-liquid mixed enters in return tank by the second pipeline, the temperature out control that gas-liquid mixed goes out condenser tube side is mutually 80 ℃ to 90 ℃, gas-liquid mixed enters mutually and in return tank, is separated into gas phase and liquid phase, liquid phase is successively by the 3rd pipeline, trim the top of column pump and the 4th pipeline enter in rectifying tower, gas phase in return tank enters in naphthalene gas absorption tower by the 5th pipeline and naphthalene aspiration closed cans successively, gas phase in naphthalene gas absorption tower is sprayed the reverse generation mass-and heat-transfer that contacts of the naphthalene gas absorption liquid getting off with spray thrower in naphthalene gas absorption tower and is reacted, the 5th step, the gas phase that occurs not absorbed by naphthalene gas absorption liquid after mass-and heat-transfer reaction is discharged by the 19 pipeline and vacuum pump, absorbs in the naphthalene gas absorption liquid inflow naphthalene aspiration closed cans after gas phase and discharges by the 6th pipeline.
5. the control method of petronaphthalene rectifying reflux temperature control device according to claim 4, is characterized in that the inlet temperature that hot water enters condenser shell side is 80 ℃, and the temperature out that hot water goes out condenser shell side is 80 ℃ to 90 ℃.
6. according to the control method of the petronaphthalene rectifying reflux temperature control device described in claim 4 or 5, it is characterized in that vapor temperature is 120 ℃ to 170 ℃, vapor pressure is 0.3Mpa to 0.8Mpa.
7. according to the control method of the petronaphthalene rectifying reflux temperature control device described in claim 4 or 5, it is characterized in that rectifying tower pressure on top surface is for-70kpa is to-92kpa.
8. the control method of petronaphthalene rectifying reflux temperature control device according to claim 6, is characterized in that rectifying tower pressure on top surface is for-70kpa is to-92kpa.
9. according to the control method of the petronaphthalene rectifying reflux temperature control device described in claim 4 or 5, it is characterized in that naphthalene gas absorption liquid is aromatic hydrocarbon oil washing lotion.
10. the control method of petronaphthalene rectifying reflux temperature control device according to claim 6, is characterized in that naphthalene gas absorption liquid is aromatic hydrocarbon oil washing lotion.
The control method of 11. petronaphthalene rectifying reflux temperature control device according to claim 7, is characterized in that naphthalene gas absorption liquid is aromatic hydrocarbon oil washing lotion.
The control method of 12. petronaphthalene rectifying reflux temperature control device according to claim 8, is characterized in that naphthalene gas absorption liquid is aromatic hydrocarbon oil washing lotion.
13. according to the control method of the petronaphthalene rectifying reflux temperature control device described in claim 4 or 5, it is characterized in that hot water in condenser shell side enters in hot-water cylinder by the 11 pipeline and with hot-water cylinder in thermal oil coil pipe in thermal oil carry out heat exchange, hot water in hot-water cylinder after heat exchange is successively by the 14 pipeline, hot water circulating pump and the 15 pipeline enter in the tube side of water cooler, after recirculated water heat exchange in hot water in water cooler tube side and water cooler shell side, by the tenth pipeline, enter in the tube side of condenser, hot water forms circulation in the tube side of condenser.
The control method of 14. petronaphthalene rectifying reflux temperature control device according to claim 6, it is characterized in that hot water in condenser shell side enters in hot-water cylinder by the 11 pipeline and with hot-water cylinder in thermal oil coil pipe in thermal oil carry out heat exchange, hot water in hot-water cylinder after heat exchange enters in the tube side of water cooler by the 14 pipeline, hot water circulating pump and the 15 pipeline successively, after recirculated water heat exchange in hot water in water cooler tube side and water cooler shell side, by the tenth pipeline, enter in the tube side of condenser, hot water forms circulation in the tube side of condenser.
The control method of 15. petronaphthalene rectifying reflux temperature control device according to claim 7, it is characterized in that hot water in condenser shell side enters in hot-water cylinder by the 11 pipeline and with hot-water cylinder in thermal oil coil pipe in thermal oil carry out heat exchange, hot water in hot-water cylinder after heat exchange enters in the tube side of water cooler by the 14 pipeline, hot water circulating pump and the 15 pipeline successively, after recirculated water heat exchange in hot water in water cooler tube side and water cooler shell side, by the tenth pipeline, enter in the tube side of condenser, hot water forms circulation in the tube side of condenser.
The control method of 16. petronaphthalene rectifying reflux temperature control device according to claim 8, it is characterized in that hot water in condenser shell side enters in hot-water cylinder by the 11 pipeline and with hot-water cylinder in thermal oil coil pipe in thermal oil carry out heat exchange, hot water in hot-water cylinder after heat exchange enters in the tube side of water cooler by the 14 pipeline, hot water circulating pump and the 15 pipeline successively, after recirculated water heat exchange in hot water in water cooler tube side and water cooler shell side, by the tenth pipeline, enter in the tube side of condenser, hot water forms circulation in the tube side of condenser.
The control method of 17. petronaphthalene rectifying reflux temperature control device according to claim 9, it is characterized in that hot water in condenser shell side enters in hot-water cylinder by the 11 pipeline and with hot-water cylinder in thermal oil coil pipe in thermal oil carry out heat exchange, hot water in hot-water cylinder after heat exchange enters in the tube side of water cooler by the 14 pipeline, hot water circulating pump and the 15 pipeline successively, after recirculated water heat exchange in hot water in water cooler tube side and water cooler shell side, by the tenth pipeline, enter in the tube side of condenser, hot water forms circulation in the tube side of condenser.
The control method of 18. petronaphthalene rectifying reflux temperature control device according to claim 10, it is characterized in that hot water in condenser shell side enters in hot-water cylinder by the 11 pipeline and with hot-water cylinder in thermal oil coil pipe in thermal oil carry out heat exchange, hot water in hot-water cylinder after heat exchange enters in the tube side of water cooler by the 14 pipeline, hot water circulating pump and the 15 pipeline successively, after recirculated water heat exchange in hot water in water cooler tube side and water cooler shell side, by the tenth pipeline, enter in the tube side of condenser, hot water forms circulation in the tube side of condenser.
The control method of 19. petronaphthalene rectifying reflux temperature control device according to claim 11, it is characterized in that hot water in condenser shell side enters in hot-water cylinder by the 11 pipeline and with hot-water cylinder in thermal oil coil pipe in thermal oil carry out heat exchange, hot water in hot-water cylinder after heat exchange enters in the tube side of water cooler by the 14 pipeline, hot water circulating pump and the 15 pipeline successively, after recirculated water heat exchange in hot water in water cooler tube side and water cooler shell side, by the tenth pipeline, enter in the tube side of condenser, hot water forms circulation in the tube side of condenser.
The control method of 20. petronaphthalene rectifying reflux temperature control device according to claim 12, it is characterized in that hot water in condenser shell side enters in hot-water cylinder by the 11 pipeline and with hot-water cylinder in thermal oil coil pipe in thermal oil carry out heat exchange, hot water in hot-water cylinder after heat exchange enters in the tube side of water cooler by the 14 pipeline, hot water circulating pump and the 15 pipeline successively, after recirculated water heat exchange in hot water in water cooler tube side and water cooler shell side, by the tenth pipeline, enter in the tube side of condenser, hot water forms circulation in the tube side of condenser.
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2012
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3151176A (en) * | 1962-08-08 | 1964-09-29 | California Research Corp | Production of naphthalene |
| CN2797370Y (en) * | 2005-07-04 | 2006-07-19 | 段晨阳 | Distillation equipment for increasing phenol and naphthalene output in coal-tar oil processing |
| JP4592529B2 (en) * | 2005-08-08 | 2010-12-01 | Ｊｆｅケミカル株式会社 | Process for producing refined naphthalene absorption oil |
| CN101250084A (en) * | 2008-04-01 | 2008-08-27 | 常熟市联邦化工有限公司 | Method for preparing petroleum naphthalene by using C+10 heavy aromatic hydrocarbon as raw material |
| CN101812311A (en) * | 2009-12-17 | 2010-08-25 | 曲靖众一精细化工股份有限公司 | Method for effectively refining tar anthracene oil and concentrating naphthalene |
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| CN102952562A (en) | 2013-03-06 |
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