A kind of oil tanker waste heat cargo oil heating, heating ballast water, refrigeration combined supply system
Technical field
The present invention relates to field of energy utilization, be specifically related to a kind of oil tanker waste heat cargo oil heating, heating ballast water, refrigeration combined supply system.
Background technology
Oil is the lifeblood of national economy, and the stable and economy supply of oil product is the basis of modern economy sustainable development and social stability.Along with developing rapidly of our economy, the demand of China to oil also increases fast, and the growth of domestic petroleum output is very slow, can not meet the needs that consumption increases far away, the insufficiency of supply-demand of oil can only be made up by import, at present, oil tanker fleet is just bearing the task of imported crude oil transport, and the control of traffic cost is the problem that each operator will be considered carefully.In transportation except transportation power power consumption, also has a lot of link consuming the energy, such as cargo oil heating, heating ballast water and refrigeration etc.
Because Cargo Oil viscosity is large, pour point is generally higher, and to cause in transportation not easily emptying, therefore, oil tanker, when loading and unloading goods, needs to heat to liquid goods, with the requirement of satisfied unloading usually.On oil tanker, ballast water capacity can reach about 1/3rd of this ship gross deadweight.Along with the development of world shipping industry, boats and ships are to and from all over the world more and more frequently, the ballast water capacity 30-50 hundred million tons that carries every year of global boats and ships according to estimates, and the aquatic organism that boats and ships bring because of ballast water every day just has 7000 to 10000 kinds, species contained in the ballast water that a country is installed additional can be discharged in water when boats and ships arrive another country's loading.Although this propagation of many alien species there is no harm, some species can cause catastrophic consequence to the economy and environment on discharge ground.Fast speed boats and ships mean higher goods transport economic benefit.The processing method of ballast water has more than the 10 kind methods such as filtration, chemical treatment method, heating, electronic impulse and plasma pulse, UV treatment, sonicated, magnetic field process, deoxidation treatment, biotechnology and antifouling coating, and wherein heating processing ballast is all a kind of extraordinary ballast water processing from surface analysis above practicality, economy.The horsepower output of oil tanker generating diesel engine 20% all for air-conditioning, refrigerating apparatus.Oil tanker is very large to the energy demand of cargo oil heating, loading hydrothermal treatment consists and this three aspect of equipment cooling operation, using the electric energy of generating diesel engine output as the energy resource supply of three aspects, then there is the situation of energy serious waste.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, there is provided a kind of and realize cargo oil heating, heating ballast water, the large demand of refrigeration three by recovering waste heat, utilize organic working medium phase-change heat-exchange to heat Cargo Oil, reclaim condenser heat heating ballast water, and can produce cold, energy-saving effect is remarkable.
For reaching the object of foregoing invention, the present invention is achieved through the following technical solutions:
A kind of oil tanker waste heat cargo oil heating of the present invention, heating ballast water, refrigeration combined supply system, this system comprises waste heat boiler, hot water pump, producer, expansion engine, compressor, cargo heating coils, condenser, evaporator, working medium pump, cooling water pump, heating ballast water coil pipe, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve and connecting pipeline.
Wherein, waste heat boiler, the second valve and hot water pump form loop, and this loop is through producer thus the working medium heated in it.
The outlet of producer connects the first valve for gating cargo heating coils or expansion engine work and the 3rd valve respectively, and producer forms loop by the first valve and cargo heating coils, and is exported by cargo heating coils and be connected to producer import; The outlet of producer also forms organic Rankine bottoming cycle by the 3rd valve and expansion engine, condenser and working medium pump, and is connected to the import of producer by working medium delivery side of pump; Described compressor and condenser, the 4th valve and evaporator form refrigerating cycle, and described compressor is by the expansion engine energy supply coaxially connected.Low boiling organic working medium in the hot water produced in waste heat boiler or steam heating producer, make it to become high pressure steam, high pressure organic working medium steam can directly enter in cargo heating coils, utilize the phase-change heat-exchange heating Cargo Oil of organic working medium, there is heat transfer efficiency high, and the advantage of low-grade heat source can be recycled.Because expansion engine and compressor are same Axile connection structures, do not need to consume external electric energy, only compressor rotary compression fefrigerator need be driven to freeze by expansion engine, decrease the link that changes mechanical energy becomes electric energy, effectively improve the conversion efficiency of mechanical energy, have system dimension little, be easy to control, fast response and the advantage such as stable.
Described heating ballast water coil pipe, ballast pump and the 5th valve form loop, and this loop makes the ballast water in loop be heated through condenser.Utilize ballast water above oil tanker as low-temperature heat source, the condenser of cooling organic Rankine bottoming cycle, reclaims heat, and heating ballast water reduces discharge of ballast water to the destruction of marine environment.
A kind of oil tanker waste heat cargo oil heating of the present invention, heating ballast water, refrigeration combined supply system, by boiler afterheat is reclaimed heating organic working medium, and be coupled cargo oil heating, heating ballast water, organic Rankine bottoming cycle and refrigerating cycle.The combined supply system of such formation, the low-grade waste heat of abundant recycling, and reclaim the condenser heat of refrigerating cycle and organic Rankine bottoming cycle to heat ballast water, enhance the heat exchange of condenser on the one hand, to some extent solve the destruction of discharge of ballast water to the marine eco-environment on the other hand, and can cold be produced, to solve oil tanker uses cold demand, this system architecture is reasonable, and economical and practical, energy-saving effect is remarkable.
Accompanying drawing explanation
Fig. 1 is oil tanker waste heat cargo oil heating provided by the invention, heating ballast water, refrigeration combined supply system structure principle chart.
Detailed description of the invention
Be clearly and completely described the technical scheme in the embodiment of the present invention below in conjunction with drawings and Examples, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.
Refer to Fig. 1, Fig. 1 be oil tanker waste heat cargo oil heating of the present invention, heating ballast water, refrigeration combined supply system embodiment as described below.
Oil tanker waste heat cargo oil heating, heating ballast water, refrigeration combined supply system include producer 110, cargo heating coils 120, first valve 112, waste heat boiler 210, second valve 212 and hot water pump 220.Comprise producer 110, cargo heating coils 120, first valve 112, waste heat boiler 210, second valve 212, hot water pump 220, expansion engine 130, compressor 140, condenser 150, evaporator 160, working medium pump 170, the 3rd valve 114, the 4th valve 152, load water heating coil 310, load water pump 320 and the 5th valve 312.
After the outlet of waste heat boiler 210 connects the second valve 212 and hot water pump 220 successively by pipeline, the hot channel entrance of access producer 110, the hot channel outlet of producer 110 is connected with waste heat boiler 210 entrance thus forms loop.
The outlet of producer 110 accesses the entrance of cargo heating coils 120 by the first valve 112, the outlet of cargo heating coils 120 accesses the low-temperature inlet of producer 110 thus forms loop.
The outlet of producer 110 is also connected with the entrance of expansion engine 130 by the 3rd valve 114, is worked by cargo heating coils 120 described in the first above-mentioned valve 112 and the 3rd valve 114 gating or expansion engine 130.Producer 110, the 3rd valve 114, expansion engine 130, condenser 150 and working medium pump 170 form organic Rankine bottoming cycle.Compressor 140 and condenser 150, the 4th valve 152 and evaporator 160 form refrigerating cycle.Expansion engine 130 and compressor 140 are coaxial configurations, and the outlet of expansion engine 130 and the outlet of compressor 140 access the entrance of condenser 150 jointly.The outlet of condenser 150, is connected with evaporator 160 entrance by the 4th valve 152 on the one hand, is connected on the one hand by working medium pump 170 with the entrance of aforementioned producer 110.The outlet of evaporator 160 is connected with the entrance of compressor 140.
Load water heating coil 310, load water pump 320 and the 5th valve 312 and form loop and through above-mentioned condenser 160.After the outlet loading water heating coil 310 is connected with loading water pump 320, then be connected by the heat exchange tube inlet of the 5th valve 312 with aforementioned condenser 150, the heat exchanger tube of condenser 150 exports and is connected with heating ballast water coil pipe 310 entrance.
Working process of the present invention is as follows:
The hot water produced in waste heat boiler 210 or steam by after the second valve 212 and the pressurization of hot water pump 220 through producer 110, thus the low boiling organic working medium in heating generator 110, makes it to become high pressure steam.
Producer 110 high pressure organic working medium steam out controls circulating direction by the first valve 112 and the 3rd valve 114, as described below:
First valve 112 is opened and the 3rd valve 114 is closed, then high pressure organic working medium steam enters in cargo heating coils 120, utilize the phase-change heat-exchange heating Cargo Oil of organic working medium, export from cargo heating coils 120 after being condensed into liquid organic working medium and flow out, and reenter producer 110 entrance after pressurization, thus realize cargo oil heating;
First valve 112 close and the 3rd valve 114 open-minded, then high pressure organic working medium steam enters expansion engine 130, direct promotion expansion engine 130 is done manual work, low pressure steam is become from expansion engine 130 organic working medium out, then enter condenser 150 to become low pressure liquid and flow out from the outlet of condenser 150 and be divided into two strands, one low pressure liquid enters producer 110 through the lifting of working medium pump 170, completes organic Rankine bottoming cycle; Above-mentioned another strand of low pressure liquid enters evaporator 160 after the 4th valve 152 is opened, in evaporator 160, sweat cooling becomes low pressure steam, finally enter compressor 140, because expansion engine 130 and compressor 140 are coaxial configurations, the power that compressor 140 utilizes expansion engine 130 to export, after low-temp low-pressure organic working medium vapor tension is shortened into high temperature and high pressure steam, this high temperature and high pressure steam enters in condenser 150 and becomes low pressure liquid, thus realizes refrigerating cycle.
The ballast water that heating ballast water coil pipe 310 flows out, after ballast pump 320 pressurizes, condenser 150 is flowed through by the 5th valve 312, thus cooling organic working medium out from expansion engine 130 and compressor 140, reclaim the heat in condenser 150, heating ballast water coil pipe 310 is entered again with high temperature ballast water, thus the ballast water on heating oil tanker, complete heating ballast water circulation.
Oil tanker waste heat cargo oil heating of the present invention, heating ballast water, refrigeration combined supply system, the first valve 112, the 3rd valve 114 and the 4th valve 152 is had to control, only open the first valve 112, then only carry out cargo oil heating, only open the 3rd valve 114, then only carry out heating ballast water, open the 3rd valve 114 and the 4th valve 152, then can carry out freezing for meeting with cold demand and heating ballast water simultaneously.
A kind of oil tanker waste heat cargo oil heating of the present invention, heating ballast water, refrigeration combined supply system, the low-grade waste heat of abundant recycling, utilize oil tanker ballast water as low-temperature heat source, the heat reclaiming condenser heats ballast water, enhance the heat exchange of condenser, solve the destruction of discharge of ballast water to the marine eco-environment, and can cold be produced, to meet oil tanker uses cold demand.
Above-described embodiment only in order to the present invention is described and and unrestricted technical scheme described in the invention; Therefore, although this specification sheets with reference to each above-mentioned embodiment to present invention has been detailed description, those of ordinary skill in the art should be appreciated that and still can modify to the present invention or equivalent to replace; And all do not depart from technical scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in the middle of right of the present invention.