CN102563892B - Solar energy day and night heat tracing system for crude oil - Google Patents
Solar energy day and night heat tracing system for crude oil Download PDFInfo
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- CN102563892B CN102563892B CN2011103844944A CN201110384494A CN102563892B CN 102563892 B CN102563892 B CN 102563892B CN 2011103844944 A CN2011103844944 A CN 2011103844944A CN 201110384494 A CN201110384494 A CN 201110384494A CN 102563892 B CN102563892 B CN 102563892B
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- Prior art keywords
- solar energy
- crude oil
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- water tank
- heat exchanger
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- 239000010779 crude oils Substances 0.000 title claims abstract description 39
- 239000011901 water Substances 0.000 claims abstract description 118
- 238000010438 heat treatment Methods 0.000 claims description 43
- 125000004122 cyclic group Chemical group 0.000 claims description 41
- 238000003860 storage Methods 0.000 claims description 35
- 238000004642 transportation engineering Methods 0.000 claims description 7
- 238000005338 heat storage Methods 0.000 abstract description 8
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 241000196324 Embryophyta Species 0.000 description 16
- 238000005516 engineering processes Methods 0.000 description 12
- 239000000463 materials Substances 0.000 description 5
- 238000000034 methods Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 239000011257 shell materials Substances 0.000 description 4
- 239000010410 layers Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Y02E60/145—
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
Description
Technical field
The present invention relates to application of solar, relate in particular to the practical application of solar energy techniques in chemical production field, specifically a kind of economy of solar energy and practicality is accompanied heat to crude oil solar energy day-and-night heat-tracing system that is used for crude oil of in Crude Oil Transportation, utilizing.
Background technology
The energy is the key factor of human social development, and day by day increasing the weight of of energy crisis and environmental problem requires people when seeking new forms of energy, the more reasonably practical existing energy.As the rich and influential family of energy resource consumption, in a lot of technological processes, can adopt new energy technology to reduce consumption to fossil energy in the petrochemical industry.Traditional crude oil heat tracing technology is that the water after directly will being processed through deoxygenation by boiler directly heats, and hot water flows directly into the heat traced pipeline that accompanies with crude oil pipeline.Complete equipment is simple, direct, but maximum defective is to have consumed in the heating process a large amount of fire coals, produces simultaneously a large amount of carbon emissions, and is very large in the destruction of environment.And at present existing solar energy crude oil heat tracing technology also comparatively lacks.In the technology of having announced, the Sunpower Corp. that is positioned at Australian Wei Keduo province hawthorn city has developed and has utilized solar energy to the technology of heating crude oil.Its cardinal principle is at the outer solar absorbing layer of arranging of pipeline, by thermal diode heat is passed to oil transmission line after the heat absorption.
The key technology of solar energy crude oil heat tracing is to keep existing pipeline can be when solar energy lacks or is not enough (overcast and rainy), and device has heat accumulation or assisted heating device.Present solar energy crude oil heat tracing technology also exists a lot significantly not enough, and be embodied in following several aspect: (1) can not keep crude oil pipeline.In the technology application process, must consider its economy, as above the tracing system of Australia in the example needs the again heating pipeline of the solar energy of construction special use; If can not keep original pipeline, and again build new pipeline, the economy of technology is had a greatly reduced quality.(2) not enough to the unstability reply of solar energy.Solar energy has cleaning, the key property such as renewable; Simultaneously, because it relies on shine upon fully, also brought in the deficiency of supplying with on the stability.And a lot of devices are seasonable in the unstable confession of reply solar energy, lack effective countermeasure.(3) lack round the clock continuous operations ability.Owing to do not have solar energy supply-side, general device namely to adopt electrical heating or air source heat pump to heat night, can not utilize and come the night time operation of supportive device daytime from the energy of solar energy.(4) heat-storing device takes up an area greatly, lacks flexibility.In order to tackle the unstability of solar energy, and make device have certain disposal ability at night, traditional device all can be equipped with heat-storing device.Heat-storing device is mainly heat storage water tank at present, but heat storage water tank often has the shortcomings such as occupation of land is large, heat loss is large.If need to use continuously round the clock the solar energy operation, the hot water storage that then needs more heat storage water tank need to use night so not only so that the package unit floor space increases, has also been brought increase on the cost and the decline of economy.(5) the assisted heating device energy consumption is large.Demand for heat when general solar energy equipment adopts electrical heating to satisfy the solar energy undersupply as assisted heating device more.But electrical heating exists the large problem of energy resource consumption equally, and because electricity is secondary energy sources, at the heating no less important, during the water of same temperature rise, the consumption of the simple burning in boiler coal of electrically heated consumption rate is larger.(6) water too much use pump in cyclic process.Traditional solar energy optical-thermal device often helps the whole system forced circulation to improve the thermal efficiency with pump, but considers the specific demand in the chemical industry, does not namely allow to make electricity consumption, pump that obvious use restriction is arranged under some occasion.
Summary of the invention
The objective of the invention is the defective for prior art, the solar energy day-and-night heat-tracing system that is used for crude oil that provides a kind of thermal-arrest, heat accumulation, temperature and flow-control, boiler to calorify one and have higher economy and practicality.
The objective of the invention is to solve by the following technical programs:
A kind of solar energy day-and-night heat-tracing system for crude oil, comprise the solar energy heating array, the water inlet of described solar energy heating array links to each other with cyclic water tank with high-temperature conduit by the low temperature water pipe respectively with delivery port, cyclic water tank links to each other with deaeration plant by high-temperature conduit, deaeration plant links to each other with bottom one side of phase-change thermal storage heat exchanger by high-temperature conduit, and the bottom opposite side of phase-change thermal storage heat exchanger links to each other with cyclic water tank by the low temperature water pipe; The top of described phase-change thermal storage heat exchanger is provided with the Crude Oil Transportation pipe that passes the phase-change thermal storage heat exchanger.
Low temperature water pipe between described cyclic water tank and the solar energy heating array is provided with flow sensor, high-temperature conduit between cyclic water tank and the solar energy heating array is provided with temperature sensor, described flow sensor links to each other with controller respectively with temperature sensor, and controller links to each other with data collecting system.
Low temperature water pipe between described cyclic water tank and the solar energy heating array is provided with water pump, and described water pump is on the low temperature water pipe between flow sensor and the cyclic water tank, and water pump links to each other with controller, and controller links to each other with data collecting system.
High-temperature conduit between described cyclic water tank and the deaeration plant is provided with magnetic valve, and described magnetic valve links to each other with controller, and controller links to each other with data collecting system.
Described cyclic water tank links to each other with filling pipe.
Described solar energy heating array adopts vacuum tube collector to form.
Be provided with boiler between described deaeration plant and the phase-change thermal storage heat exchanger, the water inlet of boiler links to each other with phase-change thermal storage heat exchanger bottom one side water inlet with the delivery port of deaeration plant by high-temperature conduit respectively with delivery port.
The delivery port of described boiler links to each other with deaeration plant by high-temperature conduit.
The present invention has the following advantages compared to existing technology:
1, the present invention is by putting solar energy heating array and the phase-change thermal storage heat exchanger of middle adding vacuum tube collector composition at original companion's hot charging, do not needing again to build in the situation of pipeline, can realize utilizing solar energy that crude oil is carried out the round the clock purpose of uninterrupted companion's heat, workable and improvement cost is low.
2, the present invention is taken up an area the characteristics little, that heat accumulation is many, heat loss is little by adopting the phase-change thermal storage heat exchanger to substitute original attemperater, having, and has stronger flexibility.
3, the present invention is on the basis of adopting solar energy heating array and phase-change thermal storage heat exchanger, by keeping boiler heating, still can finish continual crude oil heat tracing when having satisfied under the special weather situation solar energy undersupply, bear whole heating tasks.
4, the present invention has realized the automatic operation of whole system by automatic control system is set, and can carry out Real Time Monitoring.
5, the present invention is by utilizing water in intrasystem flow process, because the gravitational difference that the difference of temperature produces, and then Natural Circulation, remove from some responsive occasion and use water pump, be applicable to the requirement of chemical industry Raw accumulating plant area.
Description of drawings
Accompanying drawing 1 is principle schematic of the present invention.
Wherein: 1-solar energy heating array; 2-low temperature water pipe; 3-high-temperature conduit; 4-cyclic water tank; 5-deaeration plant; 6-phase-change thermal storage heat exchanger; 7-Crude Oil Transportation pipe; 8-flow sensor; 9-temperature sensor; 10-controller; 11-data collecting system; 12-water pump; 13-magnetic valve; 14-filling pipe; 15-boiler.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1: a kind of solar energy day-and-night heat-tracing system for crude oil, comprise the solar energy heating array 1 that adopts vacuum tube collector to form, the water inlet of this solar energy heating array 1 links to each other with cyclic water tank 4 with high-temperature conduit 3 by low temperature water pipe 2 respectively with delivery port, cyclic water tank 4 links to each other with deaeration plant 5 by high-temperature conduit 3, deaeration plant 5 links to each other with bottom one side of phase-change thermal storage heat exchanger 6 by high-temperature conduit 3, the bottom opposite side of phase-change thermal storage heat exchanger 6 links to each other with cyclic water tank 4 by low temperature water pipe 2, and the top of phase-change thermal storage heat exchanger 6 is provided with the Crude Oil Transportation pipe 7 that passes phase-change thermal storage heat exchanger 6; In order to keep the water yield in the cyclic water tank 4, cyclic water tank 4 links to each other with filling pipe 14; High-temperature water flows to phase-change thermal storage heat exchanger 6 by cyclic water tank 4, deaeration plant 5 by high-temperature conduit 3 successively from solar energy heating array 1, then water at low temperature flows to solar energy heating array 1 from phase-change thermal storage heat exchanger 6 through cyclic water tank 4, when finishing whole circulation the crude oil in the Crude Oil Transportation pipe 7 that passes phase-change thermal storage heat exchanger 6 is accompanied heat.For the flow according to the temperature controlled water of high-temperature water, the low temperature water pipe 2 between cyclic water tank 4 and solar energy heating array 1 is provided with flow sensor 8 in addition; High-temperature conduit 3 between cyclic water tank 4 and the solar energy heating array 1 is provided with temperature sensor 9; Low temperature water pipe 2 between cyclic water tank 4 and the solar energy heating array 1 is provided with water pump 12, and this water pump 12 is on the low temperature water pipe 2 between flow sensor 8 and the cyclic water tank 4; High-temperature conduit 3 between cyclic water tank 4 and the deaeration plant 5 is provided with magnetic valve 13, flow sensor 8, temperature sensor 9, water pump 12 and magnetic valve 13 all link to each other with controller 10 by circuit, controller 10 links to each other with data collecting system 11, makes whole system realize automatic operating.Under special weather, long-time extreme weather situation without sunlight might appear, in order to guarantee the normal operation of whole tracing system under this situation, between deaeration plant 5 and phase-change thermal storage heat exchanger 6, be provided with boiler 15, the water inlet of boiler 15 links to each other with phase-change thermal storage heat exchanger 6 bottoms one side water inlet with the delivery port of deaeration plant 5 by high-temperature conduit 3 respectively with delivery port, and in order to save the convenience of pipeline and operation, all enter in the phase-change thermal storage heat exchanger 6 through same high-temperature conduit 3 through solar energy heating array 1 and boiler 15 hot water out; The delivery port of boiler 15 links to each other with deaeration plant 5 by high-temperature conduit 3 in addition, for deaeration plant 5 provides necessary support.
Cyclic water tank 4 and phase-change thermal storage heat exchanger 6 specific works principles that the present invention adopts are as follows, and wherein cyclic water tank 4 is between solar energy heating array 1 and the phase-change thermal storage heat exchanger 6, is bearing the effect of transition, buffering, recirculated water.The magnetic valve 13 that arranges in cyclic water tank 4 exits is used for the adjusting water outlet flow, and according to the demand of leaving water temperature, constantly regulates the flow between cyclic water tank 4 and the solar energy heating array 1; The outer cloth of cyclic water tank 4 is equipped with heat-insulation layer simultaneously, guarantees that the heat of the water in the water tank can not produce too much loss.Phase-change thermal storage heat exchanger 6 is shut its shell side import and export take shell-and-tube heat exchanger as model, and tube side is divided into two from horizontal direction, and the latter half is by hot water, and the first half is by crude oil, shell side space-filling phase-change material.During work, hot water flows into first second tube side through high-temperature conduit 3, conducts heat to phase-change material, and after a period of time, crude oil flows into through Crude Oil Transportation pipe 7 and does tube side, conducts heat with phase-change material, and temperature raises.Simultaneously, go out at the phase-change material of shell side since when passing into hot water temperature rise, density reduces, and is drop in temperature behind the crude oil heat exchange, density increases, and then has produced density contrast, carries out Natural Circulation in the shell side space, strengthens heat transfer effect.Be to reduce heat loss, at the skin of phase-change thermal storage heat exchanger 6 heat-insulation layer can be installed.The phase-change thermal storage heat exchanger also is the heating crude oil store heat at night when one side provides heat for heat exchange operation 6 daytimes in addition, and then assurance device whole day work double tides.The controller 10 that arranges in addition is responsible for obtaining temperature, flow information according to each test point, and whole device is carried out Flow-rate adjustment, and data collecting system 11 to computer, is runed data acquisition for monitoring simultaneously.
Solar energy day-and-night heat-tracing system workflow for crude oil of the present invention is as follows: under the normal weather, water at first carries out circulating-heating between solar energy heating array 1, cyclic water tank 4, then 70-80 ℃ high-temperature water flows into phase-change thermal storage heat exchanger 6 through high-temperature conduit 3, the phase-change material that heat is passed in the phase-change thermal storage heat exchanger 6 carries out heat accumulation, cold water after the heat exchange flows back to cyclic water tank 4 through low temperature water pipe 2, is reheated by solar energy heating array 1.When running into when overcast and rainy, can be suitably or all reduce the heating-up temperature of solar energy heating array 1, namely reduce the temperature of the water that enters boiler 15, perhaps directly enter boiler 15 by cold water, heat use by boiler 15.Namely when real work, water recycles in solar energy heating array 1, cyclic water tank 4, phase-change thermal storage heat exchanger 6, boiler 15 and heat traced pipeline, when the water yield in the cyclic water tank 4 reduces, can carry out moisturizing via 14 pairs of cyclic water tanks of filling pipe 4.
Above embodiment only for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of doing on the technical scheme basis all falls within the protection domain of the present invention; The technology that the present invention does not relate to all can be realized by prior art.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103844944A CN102563892B (en) | 2011-11-28 | 2011-11-28 | Solar energy day and night heat tracing system for crude oil |
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| CN2011103844944A CN102563892B (en) | 2011-11-28 | 2011-11-28 | Solar energy day and night heat tracing system for crude oil |
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| CN102563892A CN102563892A (en) | 2012-07-11 |
| CN102563892B true CN102563892B (en) | 2013-05-29 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103557606A (en) * | 2013-10-25 | 2014-02-05 | 长江大学 | Solar heating furnace for heating crude oil |
| CN204187832U (en) * | 2014-05-23 | 2015-03-04 | 深圳市爱能森设备技术有限公司 | A kind of paddy electric hot water of heat-conducting oil |
| CN104748412B (en) * | 2015-04-27 | 2016-04-13 | 南阳师范学院 | A kind of cloud server that utilizes carries out the heating system monitored |
| CN104863558A (en) * | 2015-06-11 | 2015-08-26 | 山东创佳石油机械制造有限公司 | Heating energy saver of heavy oil well |
| CN106322777B (en) * | 2015-06-15 | 2019-02-01 | 中国石油化工股份有限公司 | A kind of pair of oil field mining liquid carries out the system and control method of combined heat |
| CN106642687B (en) * | 2015-11-02 | 2019-03-19 | 中国石油化工股份有限公司 | A kind of crude oil heating system and method with heat accumulation |
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| JPS56139395A (en) * | 1980-04-01 | 1981-10-30 | Hitachi Shipbuilding Eng Co | Recovery of low level crude oil harnessing solar heat |
| CN1654879A (en) * | 2005-02-04 | 2005-08-17 | 华东理工大学 | Solar indirect heating crude oil transportation system |
| CN201362466Y (en) * | 2008-11-10 | 2009-12-16 | 皇明太阳能集团有限公司 | Solar petroleum storage tank heating system |
| CN201462405U (en) * | 2009-06-19 | 2010-05-12 | 华东理工大学 | Crude oil heating and delivering system of solar-combined heat pump |
| CN201695998U (en) * | 2010-01-29 | 2011-01-05 | 西安长庆科技工程有限责任公司 | Heat tracing device of solar energy liquid indicator of oil-field margin well block |
| CN202328829U (en) * | 2011-11-28 | 2012-07-11 | 南京工业大学 | Solar day-and-night heat-tracing system for crude oil |
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