CN103670557B - A kind of landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system - Google Patents
A kind of landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system Download PDFInfo
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Abstract
The invention provides a kind of landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system, belong to energy and environment technical field.The present invention includes landfill gas pipeline, domestic hot-water's pipeline, heating supply channel (Absorption Refrigerator hot water feeding pipe road), air inlet pipeline, smoke-exhaust pipeline, high-temperature level organic Rankine bottoming cycle loop, low-temperature level organic Rankine bottoming cycle loop, chilled(cooling) water return (CWR); The energy efficient that rubbish landfill gas has by the present invention make use of, also electric energy is provided while cold and heat supply, adopt twin-stage organic Rankine bottoming cycle, the cascade utilization of energy is achieved while improving system effectiveness, energy utilization efficiency is high, can continue to provide the stable cold, heat energy and the electric energy that export, greatly reduce the discharge of harmful gas simultaneously.
Description
Technical field
The present invention relates to a kind of landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system, belong to energy and environment technical field.
Background technique
Along with quickening and the rapid development of economy of China's Development of China's Urbanization, Municipal Domestic Garbage Output grows with each passing day, nearly 1.5 hundred million tons of the annual Municipal Domestic Garbage Output of China, and growth rate reaches more than 10%.80% of China's Municipal Domestic Garbage Output adopts Landfill process.In 668 big and medium-sized cities, the whole nation, every city has the refuse landfill of 1-2 seat at least, and the garbage loading embeading number of some megalopolis is even more than 10 more than, and rubbish total inventory has reached more than 70 hundred million tons.After garbage loading embeading, the anaerobic fermentation under bacterium, microbial action of organic substance wherein generates a large amount of landfill gas (LFG), and the main component of landfill gas is methane and CO
2(volume content: 45%-50% CH
4, 40%-60% CO
2), methane is inflammable and explosive, and its global warming value of diving is CO
221 times, if do not carry out landfill gas collection and process probably cause landfill yard blast, larger harm is caused to environment.Landfill gas is also a kind of high-quality renewable energy sources simultaneously, for China of per capita resources scarcity, is important alternative energy resources.In the numerous recovery and utilization technology of urban domestic waste landfill gas, because of landfill gas internal-combustion engine generation technology there is less investment, the construction period is short, operation cost is low and the advantage such as no secondary pollution, along with the enforcement of China's " Renewable Energy Law ", urban domestic waste landfill gas internal-combustion engine generation technology obtains in China to be applied rapidly.Increasing along with China's urban domestic waste landfill gas power generation project, improves landfill gas utilization system overall efficiency and becomes problem demanding prompt solution.
Organic Rankine bottoming cycle (ORC) is owing to have employed low boiling organic working medium, it has the higher thermal efficiency in the power recovery performance of middle low temperature heat energy compared with conventional steam organic Rankine bottoming cycle, equipment is also more simple, be very suitable for the power recovery of middle low temperature heat energy, effectively process landfill gas, the energy effective utilization simultaneously had by rubbish landfill gas, for cooling, for heat and generating power, is expected to become solution urban energy important technique measure in short supply.
Summary of the invention
The object of this invention is to provide a kind of landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system, the energy efficient that rubbish landfill gas has by this system make use of, also electric energy is provided while cold and heat supply, adopt twin-stage organic Rankine bottoming cycle simultaneously, while improving system effectiveness, achieve the cascade utilization of energy, solve the problem that conventional power generation usage circulation effectively cannot utilize low temperature heat energy.
Solving the scheme that technical problem of the present invention adopts is: a kind of landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system, comprise landfill gas pipeline, domestic hot-water's pipeline, heating supply channel (Absorption Refrigerator hot water feeding pipe road), air inlet pipeline, smoke-exhaust pipeline, high-temperature level organic Rankine bottoming cycle loop, low-temperature level organic Rankine bottoming cycle loop, chilled(cooling) water return (CWR), described landfill gas pipeline by garbage loading embeading gas storage tank 1, pressure blower 2, desulfurizer 3, except CO
2device 4, mixer 5, internal-combustion engine 6 and the pipeline they connected are formed, and garbage loading embeading gas storage tank 1 is connected with pressure blower 2 import through pipeline, and pressure blower 2 exports and is connected with desulfurizer 3 import through pipeline, and desulfurizer 3 exports a road through pipeline and except CO
2device 4 import connects, and another road is directly connected, except CO with mixer 5 import through pipeline
2device 4 exports and is connected with mixer 5 import through pipeline, and mixer 5 exports and is connected with the import of internal-combustion engine 6 landfill gas through pipeline, domestic hot-water's pipeline is by pressurized air secondary coolers 8, lube oil cooler 9 and formed by the pipeline that they connect, water supply pipe is connected with the side-entrance of pressurized air secondary coolers 8 cold fluid, pressurized air secondary coolers 8 cold fluid side outlet is connected with the side-entrance of lube oil cooler 9 cold fluid through pipeline, and lube oil cooler 9 cold fluid side outlet directly connects with supply domestic hot-water pipeline, heating supply channel (Absorption Refrigerator hot water feeding pipe road) is by cylinder jacket cooler 10, pressurized air one-level cooler 11 and formed by the pipeline that they connect, the heating backwater of coming from user or absorption refrigeration agent hot water backwater are connected with the side-entrance of cylinder jacket cooler 10 cold fluid through pipeline, cylinder jacket cooler 10 cold fluid side outlet is connected with the side-entrance of pressurized air one-level cooler 11 cold fluid through pipeline, and pressurized air one-level cooler 11 cold fluid side outlet directly connects with supply heating water and Absorption Refrigerator hot water pipeline, air inlet pipeline is by air-strainer 12, gas compressor 13, pressurized air one-level cooler 11, pressurized air secondary coolers 8, internal-combustion engine 6 and the pipeline they connected are formed, the air come from environment is connected with air-strainer 12 import by the road, air-strainer 12 exports and is connected with gas compressor 13 import through pipeline, gas compressor 13 exports and is connected with the side-entrance of pressurized air one-level cooler 11 hot fluid through pipeline, pressurized air one-level cooler 11 hot fluid side outlet is connected with the side-entrance of pressurized air secondary coolers 8 hot fluid through pipeline, pressurized air secondary coolers 8 hot fluid side outlet is connected with internal-combustion engine 6 suction port through pipeline, smoke-exhaust pipeline is by internal-combustion engine 6, engine exhaust gas expansion turbine 14, high-temperature level steam superheater 15, low-temperature level steam superheater 16 and the pipeline they connected are formed, the smoke exhaust port of internal-combustion engine 6 is connected with engine exhaust gas expansion turbine 14 import through pipeline, engine exhaust gas expansion turbine 14 exports and is connected with the side-entrance of high-temperature level steam superheater 15 hot fluid through pipeline, high-temperature level steam superheater 15 hot fluid side outlet is connected with the side-entrance of low-temperature level steam superheater 16 hot fluid through pipeline, low-temperature level steam superheater 16 hot fluid side outlet is then connected with external environment through pipeline, high-temperature level organic Rankine bottoming cycle loop is by high-temperature level steam superheater 15, high-temperature level organic working medium turbine 17, high-temperature level regenerator 19, condensation/vaporization device 20, working medium compression pump I 21 and the pipeline they connected are formed, high-temperature level steam superheater 15 cold fluid side outlet is connected with the import of high-temperature level organic working medium turbine 17 through pipeline, high-temperature level organic working medium turbine 17 exports and is connected with the side-entrance of high-temperature level regenerator 19 hot fluid through pipeline, high-temperature level regenerator 19 hot fluid side outlet is connected with the side-entrance of condensation/vaporization device 20 hot fluid through pipeline, condensation/vaporization device 20 hot fluid side outlet is connected with working medium compression pump I 21 import through pipeline, working medium compression pump I 21 outlet is connected with the side-entrance of high-temperature level regenerator 19 cold fluid through pipeline, high-temperature level regenerator 19 cold fluid side outlet is connected with the import of high-temperature level steam superheater 15 cold fluid through pipeline, low-temperature level organic Rankine bottoming cycle loop is by low-temperature level steam superheater 16, low-temperature level organic working medium turbine 22, low-temperature level regenerator 24, low-temperature level condenser 25, working medium compression pump II 26, condensation/vaporization device 20 and the pipeline they connected are formed, low-temperature level steam superheater 16 cold fluid side outlet is connected with the import of low-temperature level organic working medium turbine 22 through pipeline, low-temperature level organic working medium turbine 22 exports and is connected with the side-entrance of low-temperature level regenerator 24 hot fluid through pipeline, low-temperature level regenerator 24 hot fluid side outlet is connected with the side-entrance of low-temperature level condenser 25 hot fluid through pipeline, low-temperature level condenser 25 hot fluid side outlet is connected with working medium compression pump II 26 import through pipeline, working medium compression pump II 26 outlet is connected with the side-entrance of low-temperature level regenerator 24 cold fluid through pipeline, low-temperature level regenerator 24 cold fluid side outlet is connected with the side-entrance of condensation/vaporization device 20 cold fluid through pipeline, condensation/vaporization device 20 cold fluid side outlet is connected with the side-entrance of low-temperature level steam superheater 16 cold fluid through pipeline, chilled(cooling) water return (CWR) is made up of low-temperature level condenser 25, cooling tower 27, cooling waterpump 28, cooling waterpump 28 is connected to cooling tower 27 through piping and exports between the side-entrance of low-temperature level condenser 25 cold fluid, and low-temperature level condenser 25 cold fluid side outlet is connected with cooling tower 27 upper end water distributor through pipeline.
Described high-temperature level organic Rankine bottoming cycle working medium is any mixture of any one or several in R123, R245fa, toluene, butane, isobutane, pentane, isopentane, cyclopentane, heptane, R113, R11, cyclohexane, benzene, ortho-xylene, ethylo benzene, 6 methyl 2 siloxane, 8 methyl 3 siloxane, 10 methyl 4 siloxane, 12 methyl 5 siloxane, and low-temperature level organic Rankine bottoming cycle working medium is any mixture of any one or two kinds of in R134a, R227ea.
Working medium kind, generate output on demand, cooling that the working medium kind that the present invention selectes according to the amount of landfill gas, high-temperature level organic Rankine bottoming cycle loop, low-temperature level organic Rankine bottoming cycle loop are selected meet and heating demand is equipped with and install garbage loading embeading gas storage tank, pressure blower, desulfurizer, except CO
2device, mixer, internal-combustion engine, excitation generator, pressurized air one-level cooler, pressurized air secondary coolers, lube oil cooler, cylinder jacket cooler, air-strainer, gas compressor, engine exhaust gas expansion turbine, high-temperature level steam superheater, low-temperature level steam superheater, high-temperature level organic working medium turbine, generator, low-temperature level organic working medium turbine, high-temperature level regenerator, low-temperature level regenerator, condensation/vaporization device, working medium compression pump, low-temperature level condenser, cooling tower, cooling waterpump and pipeline thereof and accessory, according to the charging amount of each pipe volume computation cycles working medium, cycle fluid metering is filled with in circulation loop.
Working principle of the present invention is: after pressure blower 2 pressurizes, enter desulfurizer 3 desulfurization from garbage loading embeading gas storage tank 1 out rubbish landfill gas, be out divided into two-way afterwards: a road enters except CO from desulfurizer 3
2device 4 is except CO
2, another road does not then install any device additional, and the rubbish landfill gas of the first via is removing CO
2mix at mixer 5 with the undressed rubbish landfill gas in another road afterwards, enter internal-combustion engine 6 through mixed rubbish landfill gas and to burn outputting power, then drive excitation generator 7 to rotate, output power, tap water enter pressurized air secondary coolers 8 absorb compressed-air actuated heat heat up after then enter lube oil cooler 9 cutting oil, then from lube oil cooler 9 out entered pipeline supply domestic hot-water by the water heated, heating backwater (or hot water backwater of Absorption Refrigerator) enters then to enter after cylinder jacket cooler 10 absorbs heat and enters pipeline supply heating after pressurized air one-level cooler 11 absorbs compressed-air actuated heat and supply water (Absorption Refrigerator hot water feeding pipe road), air enters after air-strainer 12 filters and enters gas compressor 13, enters pressurized air one-level cooler 11 by gas compressor 13 after being pressurizeed, and then enters pressurized air secondary coolers 8 and continues cooling, then enter internal-combustion engine 6 after cooled, engine exhaust gas expansion turbine 14 is entered from internal-combustion engine 6 useless flue gas out, turbine is driven to rotate acting, then gas compressor 13 is driven to rotate, flue gas from engine exhaust gas expansion turbine 14 out after then enter high-temperature level steam superheater 15 release heat, organic working medium in high-temperature level organic Rankine bottoming cycle loop is evaporated overheated, out continue afterwards to enter low-temperature level steam superheater 16 release heat, make the organic working medium in low-temperature level organic Rankine bottoming cycle circulation loop overheated, then out enter air from low-temperature level steam superheater 16, absorb from high-temperature level steam superheater 15 heat overheated after organic working medium steam enter high-temperature level organic working medium turbine 17 expansion work, high-temperature level organic working medium turbine 17 output shaft drive electrical generators 18 rotates generating, from high-temperature level organic working medium turbine 17 out after exhaust steam enter the preheating of high-temperature level regenerator 19 release heat from organic working medium compression pump I 21 organic working medium out, then enter condensation/vaporization device 20 and be condensed into liquid, then out enter after organic working medium compression pump I 21 pressurizes afterwards from condensation/vaporization device 20 and to enter high-temperature level steam superheater 15 after heat that high-temperature level regenerator 19 absorbs exhaust steam heats up to absorb the heat of vaporization of flue gas overheated, complete a circulation, absorb from low-temperature level steam superheater 16 flue gas heat overheated after organic working medium steam enter low-temperature level organic working medium turbine 22 expansion work, low-temperature level organic working medium turbine 22 output shaft drive electrical generators 23 rotates generating, from low-temperature level organic working medium turbine 22 out after exhaust steam enter the preheating of low-temperature level regenerator 24 release heat from organic working medium compression pump II 26 organic working medium out, then enter low-temperature level condenser 25 and be condensed into liquid, then out enter afterwards to enter after heat that low-temperature level regenerator 24 absorbs exhaust steam heats up after organic working medium compression pump II 26 pressurizes from low-temperature level condenser 25 and to enter low-temperature level steam superheater 16 after condensation/vaporization device 20 absorbs the heat of vaporization of organic working medium high-temperature level organic Rankine bottoming cycle loop to absorb the heat of flue gas overheated, complete a circulation, the working medium be delivered to low-temperature level condenser 25 pairs of low-temperature level organic Rankine bottoming cycle loops through cooling waterpump 28 from cooling tower 27 cooling water out carries out condensation, returns the water distributor of cooling tower 27 afterwards, through supercooling laggard enter water-collecting tray at the bottom of tower, complete a circulation.
Native system adopts twin-stage organic Rankine bottoming cycle, provides electric energy, mainly have following beneficial effect while cold and heat supply:
(1) efficiently solve the process problem of rubbish landfill gas, it is dropped to the impact of environment minimum;
(2) take full advantage of the energy that rubbish landfill gas has, while cold and heat supply, provide electric energy, substantially increase the utilization ratio of energy;
(3) heat energy is utilized from high to low by temperature, achieve the cascade utilization of energy, further increase the thermal efficiency;
(4) supply of cooling, heating and electrical powers process ring harmful substances CO is significantly reduced
x, SO
xgeneration and discharge;
(5) effectively to the CO of rubbish landfill gas
2content controls, and improves the efficiency of internal combustion engine;
(6) be convenient to realize personalized distributed triple-generation system, the utilization in all the other waste heat sources simultaneously also can adopt native system.
Accompanying drawing explanation
Fig. 1 is present system structural representation.
In figure, each label is: 1-garbage loading embeading gas storage tank, 2-pressure blower, 3-desulfurizer, 4-is except CO2 device, 5-mixer, 6-internal-combustion engine, 7-excitation generator, 8-pressurized air secondary coolers, 9-lube oil cooler, 10-cylinder jacket cooler, 11-pressurized air one-level cooler, 12-air-strainer, 13-gas compressor, 14-engine exhaust gas expansion turbine, 15-high-temperature level steam superheater, 16-low-temperature level steam superheater, 17-high-temperature level organic working medium turbine, 18-generator, 19-high-temperature level regenerator, 20-condensation/vaporization device, 21-working medium compression pump I, 22-low-temperature level organic working medium turbine, 23-generator, 24-low-temperature level regenerator, 25-low-temperature level condenser, 26-working medium compression pump II, 27-cooling tower, 28-cooling waterpump.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated.
Embodiment 1: a landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system is built in somewhere, and output power of motor is 20kW, and refrigerating capacity is that 5kW supplies 45 ~ 50 DEG C of health hot water 600l/d.
This landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system, comprises landfill gas pipeline, domestic hot-water's pipeline, heating supply channel, air inlet pipeline, smoke-exhaust pipeline, high-temperature level organic Rankine bottoming cycle loop, low-temperature level organic Rankine bottoming cycle loop, chilled(cooling) water return (CWR), described landfill gas pipeline by garbage loading embeading gas storage tank 1, pressure blower 2, desulfurizer 3, except CO
2device 4, mixer 5, internal-combustion engine 6 and the pipeline they connected are formed, and garbage loading embeading gas storage tank 1 is connected with pressure blower 2 import through pipeline, and pressure blower 2 exports and is connected with desulfurizer 3 import through pipeline, and desulfurizer 3 exports a road through pipeline and except CO
2device 4 import connects, and another road is directly connected, except CO with mixer 5 import through pipeline
2device 4 exports and is connected with mixer 5 import through pipeline, and mixer 5 exports and is connected with the import of internal-combustion engine 6 landfill gas through pipeline, domestic hot-water's pipeline is by pressurized air secondary coolers 8, lube oil cooler 9 and formed by the pipeline that they connect, water supply pipe is connected with the side-entrance of pressurized air secondary coolers 8 cold fluid, pressurized air secondary coolers 8 cold fluid side outlet is connected with the side-entrance of lube oil cooler 9 cold fluid through pipeline, and lube oil cooler 9 cold fluid side outlet directly connects with supply domestic hot-water pipeline, heating supply channel is by cylinder jacket cooler 10, pressurized air one-level cooler 11 and formed by the pipeline that they connect, the heating backwater of coming from user or absorption refrigeration agent hot water backwater are connected with the side-entrance of cylinder jacket cooler 10 cold fluid through pipeline, cylinder jacket cooler 10 cold fluid side outlet is connected with the side-entrance of pressurized air one-level cooler 11 cold fluid through pipeline, and pressurized air one-level cooler 11 cold fluid side outlet directly connects with supply heating water and Absorption Refrigerator hot water pipeline, air inlet pipeline is by air-strainer 12, gas compressor 13, pressurized air one-level cooler 11, pressurized air secondary coolers 8, internal-combustion engine 6 and the pipeline they connected are formed, the air come from environment is connected with air-strainer 12 import by the road, air-strainer 12 exports and is connected with gas compressor 13 import through pipeline, gas compressor 13 exports and is connected with the side-entrance of pressurized air one-level cooler 11 hot fluid through pipeline, pressurized air one-level cooler 11 hot fluid side outlet is connected with the side-entrance of pressurized air secondary coolers 8 hot fluid through pipeline, pressurized air secondary coolers 8 hot fluid side outlet is connected with internal-combustion engine 6 suction port through pipeline, smoke-exhaust pipeline is by internal-combustion engine 6, engine exhaust gas expansion turbine 14, high-temperature level steam superheater 15, low-temperature level steam superheater 16 and the pipeline they connected are formed, the smoke exhaust port of internal-combustion engine 6 is connected with engine exhaust gas expansion turbine 14 import through pipeline, engine exhaust gas expansion turbine 14 exports and is connected with the side-entrance of high-temperature level steam superheater 15 hot fluid through pipeline, high-temperature level steam superheater 15 hot fluid side outlet is connected with the side-entrance of low-temperature level steam superheater 16 hot fluid through pipeline, low-temperature level steam superheater 16 hot fluid side outlet is then connected with external environment through pipeline, high-temperature level organic Rankine bottoming cycle loop is by high-temperature level steam superheater 15, high-temperature level organic working medium turbine 17, high-temperature level regenerator 19, condensation/vaporization device 20, working medium compression pump I 21 and the pipeline they connected are formed, high-temperature level steam superheater 15 cold fluid side outlet is connected with the import of high-temperature level organic working medium turbine 17 through pipeline, high-temperature level organic working medium turbine 17 exports and is connected with the side-entrance of high-temperature level regenerator 19 hot fluid through pipeline, high-temperature level regenerator 19 hot fluid side outlet is connected with the side-entrance of condensation/vaporization device 20 hot fluid through pipeline, condensation/vaporization device 20 hot fluid side outlet is connected with working medium compression pump I 21 import through pipeline, working medium compression pump I 21 outlet is connected with the side-entrance of high-temperature level regenerator 19 cold fluid through pipeline, high-temperature level regenerator 19 cold fluid side outlet is connected with the import of high-temperature level steam superheater 15 cold fluid through pipeline, low-temperature level organic Rankine bottoming cycle loop is by low-temperature level steam superheater 16, low-temperature level organic working medium turbine 22, low-temperature level regenerator 24, low-temperature level condenser 25, working medium compression pump II 26, condensation/vaporization device 20 and the pipeline they connected are formed, low-temperature level steam superheater 16 cold fluid side outlet is connected with the import of low-temperature level organic working medium turbine 22 through pipeline, low-temperature level organic working medium turbine 22 exports and is connected with the side-entrance of low-temperature level regenerator 24 hot fluid through pipeline, low-temperature level regenerator 24 hot fluid side outlet is connected with the side-entrance of low-temperature level condenser 25 hot fluid through pipeline, low-temperature level condenser 25 hot fluid side outlet is connected with working medium compression pump II 26 import through pipeline, working medium compression pump II 26 outlet is connected with the side-entrance of low-temperature level regenerator 24 cold fluid through pipeline, low-temperature level regenerator 24 cold fluid side outlet is connected with the side-entrance of condensation/vaporization device 20 cold fluid through pipeline, condensation/vaporization device 20 cold fluid side outlet is connected with the side-entrance of low-temperature level steam superheater 16 cold fluid through pipeline, chilled(cooling) water return (CWR) is made up of low-temperature level condenser 25, cooling tower 27, cooling waterpump 28, cooling waterpump 28 is connected to cooling tower 27 through piping and exports between the side-entrance of low-temperature level condenser 25 cold fluid, and low-temperature level condenser 25 cold fluid side outlet is connected with cooling tower 27 upper end water distributor through pipeline.
Internal-combustion engine 6 selects power to be the Landfill Gas Internal Combustion Engines of 100kW, by garbage loading embeading gas storage tank 1-pressure blower 2-desulfurizer 3-except CO
2landfill gas pipeline hot galvanized steel pipe connects by the order of device 4-mixer 5-internal-combustion engine 6.
Plate type heat exchanger selected by the cooler of domestic hot-water's pipeline, connected by domestic hot-water's pipeline seamless steel pipe by the order of pressurized air secondary coolers 8-oil cooler 9.
Plate type heat exchanger selected by the cooler of heating supply channel (Absorption Refrigerator hot water feeding pipe road), connected by heating supply channel (Absorption Refrigerator hot water feeding pipe road) by the order of cylinder jacket cooler 10-pressurized air one-level cooler 11 with seamless steel pipe.
The pipeline 2mm hot rolling steel plate of air inlet pipeline is welded, according to being linked in sequence of air-strainer 12-gas compressor 13-pressurized air one-level cooler 11-pressurized air secondary coolers 8-internal-combustion engine 6.
The pipeline 2mm hot rolling steel plate of smoke-exhaust pipeline is welded, be the Steel Stack of 300mm with diameter, superheater adopts plate type heat exchanger, by internal-combustion engine 6-engine exhaust gas expansion turbine 14-high-temperature level steam superheater 15, being linked in sequence of low-temperature level steam superheater 16.
High-temperature level organic Rankine bottoming cycle loop adopts working medium to be R123, and low-temperature level organic Rankine bottoming cycle loop adopts working medium R134a, and turbine (decompressor) adopts IT10 screw type expansion machine, and net power output is 10kw; High-temperature level organic Rankine bottoming cycle loop import power pressure is 0.97MPa, temperature 110 DEG C; Low-temperature level organic Rankine bottoming cycle loop import power pressure is 1.3MPa, temperature 50 C, and heat exchanger all adopts plate type heat exchanger, and working medium compression pump II 26 adopts high-pressure masked pump.The pipeline order of connection in high-temperature level organic Rankine bottoming cycle loop is: high-temperature level steam superheater 15-high-temperature level organic working medium turbine 17-high-temperature level regenerator 19-condensation/vaporization device 20-working medium compression pump I 21.The low-temperature level organic Rankine bottoming cycle loop order of connection is: low-temperature level steam superheater 16-low-temperature level organic working medium turbine 22-low-temperature level regenerator 24-low-temperature level condenser 25-working medium compression pump II 26-condensation/vaporization device 20.With copper tube, two loops are installed respectively.
Cooling tower 27 selects cooling water circulation flow to be 20m
3the low form cooling tower LBCM-20 of/h, 12KQL50/100-1.1/2 model selected by cooling waterpump 28, cooling water pipeline adopts seamless steel pipe, and chilled(cooling) water return (CWR) and required accessory install by cooling tower 27 import that the order of connection is: cooling tower 27 exports--cooling waterpump 28-low-temperature level condenser 25--order.
Above all devices and equipment part are pressed Fig. 1 and are connected, after installation, the nitrogen carrying out pipeline purges, and to high-temperature level organic Rankine bottoming cycle loop and low-temperature level organic Rankine bottoming cycle vacuum-pumping loop, and in respective line, is filled with R123, R134a and tap water on request respectively.
Embodiment 2: this landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system is identical with embodiment 1, and the working medium in high-temperature level organic Rankine bottoming cycle loop adopts R245fa.
Embodiment 3: this landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system is identical with embodiment 1, the working medium in high-temperature level organic Rankine bottoming cycle loop adopts R123, R245fa, butane, mix by the volume ratio of 30%, 25%, 45% respectively, the working medium in low-temperature level organic Rankine bottoming cycle loop adopts R227ea.
By reference to the accompanying drawings specific embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (2)
1. a landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system, it is characterized in that: comprise landfill gas pipeline, domestic hot-water's pipeline, heating supply channel, air inlet pipeline, smoke-exhaust pipeline, high-temperature level organic Rankine bottoming cycle loop, low-temperature level organic Rankine bottoming cycle loop, chilled(cooling) water return (CWR), described landfill gas pipeline by garbage loading embeading gas storage tank (1), pressure blower (2), desulfurizer (3), except CO
2device (4), mixer (5), internal-combustion engine (6) and the pipeline they connected are formed, garbage loading embeading gas storage tank (1) is connected with pressure blower (2) import through pipeline, pressure blower (2) outlet is connected with desulfurizer (3) import through pipeline, and desulfurizer (3) exports a road through pipeline and except CO
2device (4) import connects, and another road is directly connected, except CO with mixer (5) import through pipeline
2device (4) outlet is connected with mixer (5) import through pipeline, and mixer (5) outlet is connected with internal-combustion engine (6) landfill gas import through pipeline, domestic hot-water's pipeline is by pressurized air secondary coolers (8), lube oil cooler (9) and formed by the pipeline that they connect, water supply pipe is connected with pressurized air secondary coolers (8) cold fluid side-entrance, pressurized air secondary coolers (8) cold fluid side outlet is connected with lube oil cooler (9) cold fluid side-entrance through pipeline, and lube oil cooler (9) cold fluid side outlet directly connects with supply domestic hot-water pipeline, heating supply channel is by cylinder jacket cooler (10), pressurized air one-level cooler (11) and formed by the pipeline that they connect, the heating backwater of coming from user or absorption refrigeration agent hot water backwater are connected with cylinder jacket cooler (10) cold fluid side-entrance through pipeline, cylinder jacket cooler (10) cold fluid side outlet is connected with pressurized air one-level cooler (11) cold fluid side-entrance through pipeline, and pressurized air one-level cooler (11) cold fluid side outlet directly connects with supply heating water and Absorption Refrigerator hot water pipeline, air inlet pipeline is by air-strainer (12), gas compressor (13), pressurized air one-level cooler (11), pressurized air secondary coolers (8), internal-combustion engine (6) and the pipeline they connected are formed, the air come from environment is connected with air-strainer (12) import by the road, air-strainer (12) outlet is connected with gas compressor (13) import through pipeline, gas compressor (13) outlet is connected with pressurized air one-level cooler (11) hot fluid side-entrance through pipeline, pressurized air one-level cooler (11) hot fluid side outlet is connected with pressurized air secondary coolers (8) hot fluid side-entrance through pipeline, pressurized air secondary coolers (8) hot fluid side outlet is connected with internal-combustion engine (6) suction port through pipeline, smoke-exhaust pipeline is by internal-combustion engine (6), engine exhaust gas expansion turbine (14), high-temperature level steam superheater (15), low-temperature level steam superheater (16) and the pipeline they connected are formed, the smoke exhaust port of internal-combustion engine (6) is connected with engine exhaust gas expansion turbine (14) import through pipeline, engine exhaust gas expansion turbine (14) outlet is connected with high-temperature level steam superheater (15) hot fluid side-entrance through pipeline, high-temperature level steam superheater (15) hot fluid side outlet is connected with low-temperature level steam superheater (16) hot fluid side-entrance through pipeline, low-temperature level steam superheater (16) hot fluid side outlet is then connected with external environment through pipeline, high-temperature level organic Rankine bottoming cycle loop is by high-temperature level steam superheater (15), high-temperature level organic working medium turbine (17), high-temperature level regenerator (19), condensation/vaporization device (20), working medium compression pump I (21) and the pipeline they connected are formed, high-temperature level steam superheater (15) cold fluid side outlet is connected with high-temperature level organic working medium turbine (17) import through pipeline, high-temperature level organic working medium turbine (17) outlet is connected with high-temperature level regenerator (19) hot fluid side-entrance through pipeline, high-temperature level regenerator (19) hot fluid side outlet is connected with condensation/vaporization device (20) hot fluid side-entrance through pipeline, condensation/vaporization device (20) hot fluid side outlet is connected with working medium compression pump I (21) import through pipeline, working medium compression pump I (21) outlet is connected with high-temperature level regenerator (19) cold fluid side-entrance through pipeline, high-temperature level regenerator (19) cold fluid side outlet is connected with high-temperature level steam superheater (15) cold fluid import through pipeline, low-temperature level organic Rankine bottoming cycle loop is by low-temperature level steam superheater (16), low-temperature level organic working medium turbine (22), low-temperature level regenerator (24), low-temperature level condenser (25), working medium compression pump II (26), condensation/vaporization device (20) and the pipeline they connected are formed, low-temperature level steam superheater (16) cold fluid side outlet is connected with low-temperature level organic working medium turbine (22) import through pipeline, low-temperature level organic working medium turbine (22) outlet is connected with low-temperature level regenerator (24) hot fluid side-entrance through pipeline, low-temperature level regenerator (24) hot fluid side outlet is connected with low-temperature level condenser (25) hot fluid side-entrance through pipeline, low-temperature level condenser (25) hot fluid side outlet is connected with working medium compression pump II (26) import through pipeline, working medium compression pump II (26) outlet is connected with low-temperature level regenerator (24) cold fluid side-entrance through pipeline, low-temperature level regenerator (24) cold fluid side outlet is connected with condensation/vaporization device (20) cold fluid side-entrance through pipeline, condensation/vaporization device (20) cold fluid side outlet is connected with low-temperature level steam superheater (16) cold fluid side-entrance through pipeline, chilled(cooling) water return (CWR) is made up of low-temperature level condenser (25), cooling tower (27), cooling waterpump (28), cooling waterpump (28) is connected between cooling tower (27) outlet and low-temperature level condenser (25) cold fluid side-entrance through piping, and low-temperature level condenser (25) cold fluid side outlet is connected with cooling tower (27) upper end water distributor through pipeline.
2. landfill gas power generation afterheat of IC engine cascade utilization cooling heating and power generation system according to claim 1, it is characterized in that: described high-temperature level organic Rankine bottoming cycle working medium is R123, R245fa, toluene, butane, isobutane, pentane, isopentane, cyclopentane, heptane, R113, R11, cyclohexane, benzene, ortho-xylene, ethylo benzene, 6 methyl 2 siloxane, 8 methyl 3 siloxane, 10 methyl 4 siloxane, the any mixture of any one or several in 12 methyl 5 siloxane, low-temperature level organic Rankine bottoming cycle working medium is R134a, the any mixture of any one or two kinds of in R227ea.
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| CN107461851A (en) * | 2017-09-15 | 2017-12-12 | 王谦诚 | A kind of building using debirs fuel is hot and cold, chp system and method |
| CN107939548B (en) * | 2017-10-17 | 2020-06-23 | 山东大学 | Novel internal combustion engine waste heat utilization combined cooling heating and power system and working method thereof |
| CN109028643A (en) * | 2018-07-05 | 2018-12-18 | 东南大学 | A kind of distributed energy cogeneration cooling heating system and its operation process |
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