CN106595128A - Heat pump type crude oil dehydration and heating system and method - Google Patents

Heat pump type crude oil dehydration and heating system and method Download PDF

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Publication number
CN106595128A
CN106595128A CN201611021511.7A CN201611021511A CN106595128A CN 106595128 A CN106595128 A CN 106595128A CN 201611021511 A CN201611021511 A CN 201611021511A CN 106595128 A CN106595128 A CN 106595128A
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water
heat
sewage
oil
exchanging pipe
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曹锋
王驿凯
束鹏程
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Xian Jiaotong University
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Xian Jiaotong University
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Priority to CN201611021511.7A priority Critical patent/CN106595128A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00Heat pumps
    • F25B30/06Heat pumps characterised by the source of low potential heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00Fluid heaters characterised by the use of heat pumps
    • F24H4/02Water heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

The invention discloses a heat pump type crude oil dehydration and heating system and a method. The system comprises three parts of a heat pump system, a sewage heat exchange system and an oil-water heat exchange system. Oil-contained sewage generated in the crude oil dehydration and heating process serves as a low-grade heat source, and is converted through a heat pump to realize the crude oil heating purpose; afterheat resources are gradiently used for secondary heating of an oil-water mixture to dehydrate and heat the oil-water mixture; a heat pump technology is applied to the sewage afterheat recycling for secondary heat exchange of the sewage to increase the energy utilization rate; a gas engine directly uses natural gas separated out from oil-gas water to improve the economic benefit; and softening water is used as a heat exchange intermediate medium for preventing the equipment pollution and corrosion to improve the system economy.

Description

A kind of heat pump type crude oil dehydrothermal system and method
Technical field
The invention belongs to technical field of heat pumps, more particularly to a kind of heat pump type crude oil dehydrothermal method.
Background technology
Heat pump techniques are that heat is flowed to into the technology of high-order thermal source from low level heat energy under the dragging of high potential.It can be The low grade heat energy (such as air, soil, the heat energy of water institute preservation and solar energy, industrial waste heat etc.) that can not directly utilize is converted into Available high potential, so as to reach the purpose for saving part high potential (coal, oil, natural gas, electric energy etc.).
Phase at the beginning of the seventies in last century, people gradually recognize that the deposit of fossil fuel is limited.Therefore, send out in industrial or agricultural Today that exhibition is rapid, increasingly sharpen energy demand, how the efficient utilization energy, energy saving become the emphasis of research.Oil field Produce a large amount of oil-polluted waters in process of production, the temperature of these oil-polluted waters is often higher, such as Zhongyuan Oil Field containing greasy dirt The temperature of water typically at 40 DEG C or so, the temperature of the oil-polluted water of Shengli Oil Field typically at 53 DEG C -57 DEG C or so, Daqing oil field Oil-polluted water temperature is also maintained at 36 DEG C -42 DEG C, and it is huge that this can mean that more than China's oil-contaminated water of oil field that pick up the heat has Big potentiality.As can be seen here, this partial heat energy how is recycled, while solving the environment caused by the burning of fossil fuel Pollution problem, becomes the emphasis of research.
The oil-polluted water waste heat of recovery is used to heat, the Utilizing question of very small part oil-polluted water is solve only, still The waste heat for so having considerable oil-polluted water is discharged in air, that is, cause thermal pollution waste of resource again.On the one hand, at present I The each main oilfield of state has reached middle and high Water-cut Period, and oilfield sewage quantum of output is greatly increased.Although after oily waste water treatment, making Use for reinjected water (resource), saved clear water.But, a large amount of heat energy that oil-polluted water contains are not recycled and profit With.On the other hand, the dehydration of crude oil and it is outer it is defeated be required for heating, especially viscous crude, due to its viscosity it is higher, it is necessary to heating, viscosity reducing Afterwards just can be defeated in addition.Heating furnace for heating crude oil can be divided into thick oil heating furnace, thin oil heating furnace and the class of water heater three, former Oily heating process needs to consume substantial amounts of energy.The heating furnace form for adopting at present is mainly fuel-firing gas-firing water batch heater, water Jacketing heat stove is indirect type firing equipment, although it have efficiency high, be easy to management, it is safe and reliable the features such as, it is this The primary energy utilization ratio of heating furnace is generally 85%.Obviously it is this to obtain low grade heat energy using burning high-grade energy Energy utilization mode, its available energy efficiency is low-down.
With crude oil in heating process, salt, sulfur, acid that it contains etc. cause serious corruption to equipment to oil-polluted water into branch Erosion.Inorganic salt (mainly Sodium Chloride, magnesium chloride, calcium chloride) in crude oil hydrolyzes at a certain temperature generation hydrochloric acid, salt content The problems such as height can also cause fouling and the catalyst poisoning of appliance arrangement.Corrosion product is deposited on heat transmission equipment surface and forms dirt Layer, reduces the thermal efficiency, increases energy resource consumption;Corrosion simultaneously causes service life of equipment to reduce, when checking maintenance expense and maintenance Between increase, increased the operating cost of device.
The content of the invention
Object of the present invention is to provide a kind of heat pump type crude oil dehydrothermal system and method, to solve existing crude oil During dehydrothermal because caused using heating furnace crude oil energy loss, low oil-polluted water utilization rate of waste heat and crude oil, Sewage is in heat transfer process to the etching problem of equipment.
To achieve these goals, the technical solution used in the present invention is:
A kind of heat pump type crude oil dehydrothermal system, including double-screw oil gas mixing transmission pump, gas-liquid separator, oil-water separation Device, apparatus for treating sewage, compressor, condenser, vaporizer and heat exchanger;The heat exchanger includes sewage and oil water heat exchange device, oil Three parts of water and softening water- to-water heat exchanger and sewage and softening water- to-water heat exchanger;The entrance connection oil well of double-screw oil gas mixing transmission pump, The entrance of outlet connection gas-liquid separator;A kind of heat pump type crude oil dehydrothermal system, comprising heat pump, sewage heat change Three parts of system and oil water heat exchange system;Heat pump:The gaseous phase outlet of gas-liquid separator is connected with gas engine, combustion gas Electromotor is connected with compressor, and compressor outlet connects the second heat exchanging pipe import of condenser, the second heat exchanger tube of condenser Way outlet connects the first heat exchanging pipe import of vaporizer, the first heat exchanging pipe outlet connection compressor inlet of vaporizer;Steam The second heat exchanging pipe and sewage for sending out device and the second heat exchanging pipe composition loop for softening water- to-water heat exchanger, the first heat exchange of condenser Pipeline and profit and the second heat exchanging pipe composition loop for softening water- to-water heat exchanger, are provided with expansion between condenser and vaporizer Valve;Oil water heat exchange system:The liquid-phase outlet of gas-liquid separator is connected to the second heat exchanging pipe import of sewage and oil water heat exchange device, Sewage is connected to profit and softens the first heat exchanging pipe import of water- to-water heat exchanger with the second heat exchanging pipe outlet of oil water heat exchange device, Profit is connected to oil water separator with the first heat exchanging pipe outlet for softening water- to-water heat exchanger;Sewage heat change system:Oil water separator Water route outlet be connected to the first heat exchanging pipe import of sewage and oil water heat exchange device, the first heat exchange of sewage and oil water heat exchange device Tube outlet is connected to sewage and changes with soften water- to-water heat exchanger first with the first heat exchanging pipe import of water- to-water heat exchanger, sewage is softened Heat pipe way outlet is connected to apparatus for treating sewage.
Further, compressor adopts opened compressor.
Further, Jing between the second heat exchanging pipe of second heat exchanging pipe and sewage of vaporizer and softening water- to-water heat exchanger The water jacket of electromotor is crossed, softened water is heated using the water jacket waste heat of electromotor.
Further, first heat exchanging pipe and profit of condenser are constituted back with the second heat exchanging pipe for softening water- to-water heat exchanger Arrange in road and soften water pump.
Further, second heat exchanging pipe and sewage of vaporizer are constituted back with the second heat exchanging pipe for softening water- to-water heat exchanger Arrange in road and soften water pump.
Further, softened water is adopted between profit, sewage and heat pump heat exchanging as intermediate medium.
A kind of heat pump type crude oil dehydrothermal method, including:Using double-screw oil gas mixing transmission pump by oil-gas transportation to gas-liquid In separator;Jing after gas-liquid separator separates, the gaseous phase outlet of natural gas Jing gas-liquid separators is connected with gas engine;Combustion gas Electromotor directly drives compressor operating using natural gas acting;First heat exchanging pipe of condenser and profit exchange heat with softened water The second heat exchanging pipe composition loop of device, carries out second heat exchange, by temperature by 50-60 using heat pump to oil water mixture DEG C it is promoted to 70-80 DEG C;Second heat exchanging pipe of vaporizer and sewage are constituted back with the second heat exchanging pipe for softening water- to-water heat exchanger Road so that sewage is supplied to evaporator with heat pump as thermal source, and makes its temperature be reduced to 10-20 DEG C;Simultaneously softened water is being entered Before the heat exchanging pipe of vaporizer second, using the engine water jacket waste heat for reclaiming to softened water heat treated;Jing gas-liquid separators After separation, the liquid-phase outlet of 40-50 DEG C of profit Jing gas-liquid separators is connected to the second heat exchanger tube of sewage and oil water heat exchange device Road import;After the heat exchange of sewage and profit, profit is warming up to 50-60 DEG C;Profit Jing sewage and the second of oil water heat exchange device Heat exchanging pipe outlet is connected to profit and softens the first heat exchanging pipe import of water- to-water heat exchanger, using condenser liberated heat, Intermediate medium is used as by softened water, second heating is carried out to profit, now profit temperature reaches 70-80 DEG C;Profit Jing is oily Water is connected to oil water separator with the first heat exchanging pipe outlet for softening water- to-water heat exchanger;After oil water separator is separated, oily Jing Cross oil pump to be collected oil;Jing after oil water separator is separated, 60-70 DEG C of sewage be connected to Jing after sewage pump conveying sewage with First heat exchanging pipe import of oil water heat exchange device, heats to oil water mixture;After heat exchange cooling, change with profit through sewage The first heat exchanging pipe outlet of hot device is connected to sewage and softens the first heat exchanging pipe import of water- to-water heat exchanger, now sewage conduct Thermal source is supplied to evaporator with heat pump, is exchanged heat with softened water, then through sewage and the first heat exchanger tube for softening water- to-water heat exchanger Way outlet is connected to apparatus for treating sewage, and Jing after apparatus for treating sewage process sewage discharge is carried out.
Compared with prior art, the present invention has following beneficial effect:
Using double-screw oil gas mixing transmission pump, oil gas can be transported to multi-purpose station from long range oil field, it is to avoid burnt at that time Natural gas, or investment is reduced using two sets of induction systems, while reduction well head pressure can be played, the effect of improving yield.
Further, reclaim sewage remaining energy using heat pump to heat oil water mixture, it is to avoid because adopting heating crude oil The modes such as stove combusting heavy oil, residual oil or burning petroleum natural gas, carry out intensification viscosity reduction and cause the loss to crude oil to crude oil, subtract Small environment pollution, energy-saving effect is obvious.
Further, using compressor when opening, compressor adopts gas engine-driven to heat pump, directly using gas-liquid point From the detached natural gas of device, it is to avoid bring extra charge using motor power consumption.
Further, the detached sewage of Jing oil water separators, Jing secondary heat exchanges first heat oil water mixture, then remake Evaporator with heat pump is supplied to for thermal source, water temperature can be down to 10-20 DEG C after secondary heat exchange, it is to avoid the heat of original sewage discharge is dirty Dye problem.
Further, oil water mixture is first once exchanged heat with sewage, and temperature is raised to 50-60 DEG C, then enters with heat pump Row exchanges heat for second, and temperature is improved to 70-80 DEG C, is so easy to oil-water separation, while cascade utilization residual heat resources.
Further, profit, sewage is with heat pump heat exchanging using softened water as intermediate medium, it is to avoid crude oil, sewage are to warm The pollution and corrosion of pump heat exchanger, improves the thermal efficiency, reduces energy resource consumption;Increase service life of equipment simultaneously, reduce the cost of overhaul With the operating cost of reduction equipment.
Further, engine water jacket waste heat can be recycled, and be used for the heating of the softened water into before vaporizer, carry The system of liter entirety efficiency.
The present invention as low-grade heat source, converts the oil-polluted water produced during crude oil dehydrothermal by heat pump real The purpose of existing heating crude oil;So, oil-polluted water had both been make use of, the energy of growing tension and the contradiction of demand had been alleviated again, carried High economic benefit.To a certain extent, sewage, crude oil are solved in heat transfer process to the etching problem of equipment simultaneously.
Description of the drawings
Fig. 1 is a kind of structural representation of heat pump type crude oil dehydrothermal system of the invention;
Fig. 2 is the heat pump structural representation in a kind of heat pump type crude oil dehydrothermal system of the invention;
Fig. 3 is the oil water heat exchange system structure diagram in a kind of heat pump type crude oil dehydrothermal system of the invention;
Fig. 4 is the sewage heat change system structure diagram in a kind of heat pump type crude oil dehydrothermal system of the invention;
Wherein:1st, double-screw oil gas mixing transmission pump;2nd, gas-liquid separator;3rd, sewage and oil water heat exchange device;4th, profit and softening Water- to-water heat exchanger;5th, oil water separator;6th, sewage and softening water- to-water heat exchanger;7th, apparatus for treating sewage;8th, compressor;9th, condenser;10、 Vaporizer;11st, gas engine;12nd, expansion valve;13rd, water pump is softened;14th, sewage pump.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Refer to Fig. 1, a kind of heat pump type crude oil dehydrothermal system of the invention, including double-screw oil gas mixing transmission pump 1, gas-liquid Separator 2, oil water separator 5, apparatus for treating sewage 7, compressor 8, condenser 9, vaporizer 10 and heat exchanger;Heat exchanger includes dirt 6 three parts of water and oil water heat exchange device 3, profit and softening water- to-water heat exchanger 4, sewage and softening water- to-water heat exchanger;
A kind of heat pump type crude oil dehydrothermal system of the present invention, comprising heat pump, sewage heat change system and oil water heat exchange Three parts of system;As shown in figure 1, in the transportation in oil field, using double-screw oil gas mixing transmission pump 1, by oil gas from it is long away from It is transported in multi-purpose station from oil well.
Refer to the heat pump shown in Fig. 2:Jing after gas-liquid separator 2 is separated, the gas phase of natural gas Jing gas-liquid separators 2 Outlet is connected with gas engine 11, so can directly utilize natural gas, it is to avoid because of the volume brought using motor power consumption Outer expense.Gas engine 11 is connected with compressor 8, the outlet connection import a of condenser 9 of compressor 8, the outlet b connections of condenser 9 The import c of vaporizer 10, the outlet d connection imports of compressor 8 of vaporizer 10, is provided with expansion between condenser 9 and vaporizer 10 Valve 12;Condenser 9 and profit constitute loop with water- to-water heat exchanger 4 is softened, and second is carried out to oil water mixture using heat pump Heat exchange, 70-80 DEG C is promoted to by temperature by 50-60 DEG C;Vaporizer 10 and sewage constitute loop with water- to-water heat exchanger 6 is softened so that Sewage can be supplied to evaporator with heat pump as thermal source, and allow its temperature to be reduced to 10-20 DEG C, it is to avoid original sewage row The thermal pollution problem put, improves efficiency of energy utilization.While softened water is before into evaporator e, using sending out for reclaiming Heat treated of the motivation water jacket waste heat to softened water, the overall efficiency of lift system.
Refer to the oil water heat exchange system shown in Fig. 3:Jing after gas-liquid separator 2 is separated, profit (about 40-50 DEG C) Jing The liquid-phase outlet of gas-liquid separator 2 is connected to the import g of sewage and oil water heat exchange device 3.After the heat exchange of sewage and profit, oil Water is warming up to 50-60 DEG C, can so make full use of the heat energy of sewage, improves efficiency of energy utilization.Profit (is about now 50- 60 DEG C) the outlet h of Jing sewage and oil water heat exchange device 3 is connected to profit and softens the import i of water- to-water heat exchanger 4, now using condensing Device liberated heat, by softened water intermediate medium is used as, and to profit second heating is carried out, and now profit temperature can reach 70-80℃.Profit (being about now 70-80 DEG C) Jing profits are connected to oil water separator 5 with the outlet j for softening water- to-water heat exchanger 4. After oil water separator is separated, oil can be collected through oil pump to oil, facilitate further production and application.
Refer to the sewage heat change system shown in Fig. 4:Jing after oil water separator 5 is separated, now sewage is about 60-70 DEG C, the import k of sewage and oil water heat exchange device 3 is connected to Jing after sewage pump 14 is conveyed, oil water mixture is heated.Heat exchange drop Wen Hou, is connected to sewage and softens the import m of water- to-water heat exchanger 6 through the outlet l of sewage and oil water heat exchange device 3, and now sewage will Evaporator with heat pump is supplied to as thermal source, is exchanged heat with softened water, then through sewage and the outlet n for softening water- to-water heat exchanger 6 Apparatus for treating sewage 7 is connected to, Jing after the process of apparatus for treating sewage 7 sewage discharge is carried out.

Claims (7)

1. a kind of heat pump type crude oil dehydrothermal system, it is characterised in that including double-screw oil gas mixing transmission pump (1), gas-liquid separation Device (2), oil water separator (5), apparatus for treating sewage (7), compressor (8), condenser (9), vaporizer (10) and heat exchanger;It is described Heat exchanger is comprising sewage and oil water heat exchange device (3), profit and softening water- to-water heat exchanger (4) and sewage and softens water- to-water heat exchanger (6) three Individual part;The entrance connection oil well of double-screw oil gas mixing transmission pump (1), the entrance of outlet connection gas-liquid separator (2);
A kind of heat pump type crude oil dehydrothermal system, comprising heat pump, sewage heat change system and oil water heat exchange system three Individual part;
Heat pump:The gaseous phase outlet of gas-liquid separator (2) is connected with gas engine (11), gas engine (11) with compression Machine (8) connects, the second heat exchanging pipe import of compressor (8) outlet connection condenser (9), the second heat exchanger tube of condenser (9) First heat exchanging pipe import of way outlet connection vaporizer (10), the first heat exchanging pipe outlet connection compressor of vaporizer (10) (8) import;Second heat exchanging pipe and sewage of vaporizer (10) are constituted back with the second heat exchanging pipe for softening water- to-water heat exchanger (6) Road, first heat exchanging pipe and profit of condenser (9) and the second heat exchanging pipe composition loop for softening water- to-water heat exchanger (4), cold Expansion valve (12) is provided between condenser (9) and vaporizer (10);
Oil water heat exchange system:The liquid-phase outlet of gas-liquid separator (2) is connected to the second heat exchanger tube of sewage and oil water heat exchange device (3) Road import, sewage is connected to profit and softens the first of water- to-water heat exchanger (4) with the second heat exchanging pipe outlet of oil water heat exchange device (3) Heat exchanging pipe import, profit is connected to oil water separator (5) with the first heat exchanging pipe outlet for softening water- to-water heat exchanger (4);
Sewage heat change system:The water route outlet of oil water separator (5) is connected to the first heat exchanger tube of sewage and oil water heat exchange device (3) Road import, sewage is connected to sewage and softens the first of water- to-water heat exchanger (6) with the first heat exchanging pipe outlet of oil water heat exchange device (3) Heat exchanging pipe import, sewage is connected to apparatus for treating sewage (7) with the first heat exchanging pipe outlet for softening water- to-water heat exchanger (6).
2. a kind of heat pump type crude oil dehydrothermal system according to claim 1, it is characterised in that compressor (8) is adopted Opened compressor.
3. a kind of heat pump type crude oil dehydrothermal system according to claim 1, it is characterised in that the of vaporizer (10) Through the water jacket of electromotor (11) between two heat exchanging pipes and sewage and the second heat exchanging pipe of softening water- to-water heat exchanger (6), utilize The water jacket waste heat of electromotor (11) is heated to softened water.
4. a kind of heat pump type crude oil dehydrothermal dynamic according to claim 1, it is characterised in that the of condenser (9) One heat exchanging pipe and profit soften water pump (13) with setting in the second heat exchanging pipe composition loop for softening water- to-water heat exchanger (4).
5. a kind of heat pump type crude oil dehydrothermal system according to claim 1, it is characterised in that the of vaporizer (10) Two heat exchanging pipes and sewage soften water pump (13) with setting in the second heat exchanging pipe composition loop for softening water- to-water heat exchanger (6).
6. a kind of heat pump type crude oil dehydrothermal system according to claim 1, it is characterised in that profit, sewage and heat Using softened water as intermediate medium between pump heat exchange.
7. a kind of heat pump type crude oil dehydrothermal method, it is characterised in that based on any one of claim 1 to 6 Heat pump type crude oil dehydrothermal system is planted, including:
Using double-screw oil gas mixing transmission pump (1) by oil-gas transportation to gas-liquid separator (2);
Jing after gas-liquid separator (2) is separated, the gaseous phase outlet of natural gas Jing gas-liquid separators (2) is with gas engine (11) even Connect;Gas engine (11) directly drives compressor (8) work using natural gas acting;First heat exchanging pipe of condenser (9) With profit and the second heat exchanging pipe composition loop for softening water- to-water heat exchanger (4), the is carried out to oil water mixture using heat pump Secondary heat exchange, 70-80 DEG C is promoted to by temperature by 50-60 DEG C;Second heat exchanging pipe and sewage and softened water of vaporizer (10) The second heat exchanging pipe composition loop of heat exchanger (6) so that sewage is supplied to evaporator with heat pump as thermal source, and makes its temperature drop As little as 10-20 DEG C;While softened water is before into the heat exchanging pipe of vaporizer second, using the engine water jacket waste heat pair for reclaiming Softened water heat treated;
Jing after gas-liquid separator (2) is separated, the liquid-phase outlet of 40-50 DEG C of profit Jing gas-liquid separators (2) be connected to sewage with Second heat exchanging pipe import of oil water heat exchange device (3);After the heat exchange of sewage and profit, profit is warming up to 50-60 DEG C;Profit Jing sewage is connected to profit and softens the first heat exchange of water- to-water heat exchanger (4) with the second heat exchanging pipe outlet of oil water heat exchange device (3) Pipeline import, using condenser liberated heat, by softened water intermediate medium is used as, and to profit second heating is carried out, this When profit temperature reach 70-80 DEG C;Profit Jing profits are connected to profit with the first heat exchanging pipe outlet for softening water- to-water heat exchanger (4) Separator (5);After oil water separator is separated, oil is collected through oil pump to oil;
Jing after oil water separator (5) is separated, 60-70 DEG C of sewage is connected to sewage and oil water heat exchange Jing after sewage pump (14) conveying First heat exchanging pipe import of device (3), heats to oil water mixture;After heat exchange cooling, through sewage and oil water heat exchange device (3) the first heat exchanging pipe outlet is connected to sewage and softens the first heat exchanging pipe import of water- to-water heat exchanger (6), and now sewage is made Evaporator with heat pump is supplied to for thermal source, is exchanged heat with softened water, then changed with soften water- to-water heat exchanger (6) first through sewage Heat pipe way outlet is connected to apparatus for treating sewage (7), and Jing after apparatus for treating sewage (7) process sewage discharge is carried out.
CN201611021511.7A 2016-11-15 2016-11-15 Heat pump type crude oil dehydration and heating system and method Pending CN106595128A (en)

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CN108676700A (en) * 2018-07-12 2018-10-19 甘肃驰奈生物能源系统有限公司 A kind of form anaerobic fermentation methane dewatering
CN114922607A (en) * 2022-06-13 2022-08-19 长江三星能源科技股份有限公司 Oil field crude oil dehydration, desalination, gathering and transportation process bag

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Publication number Priority date Publication date Assignee Title
CN107328104A (en) * 2017-08-22 2017-11-07 合肥天鹅制冷科技有限公司 Water resource heat pump crude oil heating system
CN108676700A (en) * 2018-07-12 2018-10-19 甘肃驰奈生物能源系统有限公司 A kind of form anaerobic fermentation methane dewatering
CN114922607A (en) * 2022-06-13 2022-08-19 长江三星能源科技股份有限公司 Oil field crude oil dehydration, desalination, gathering and transportation process bag

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