CN101038111A - Small-sized electric cold-warm triple power supply system - Google Patents

Small-sized electric cold-warm triple power supply system Download PDF

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Publication number
CN101038111A
CN101038111A CNA2007100215107A CN200710021510A CN101038111A CN 101038111 A CN101038111 A CN 101038111A CN A2007100215107 A CNA2007100215107 A CN A2007100215107A CN 200710021510 A CN200710021510 A CN 200710021510A CN 101038111 A CN101038111 A CN 101038111A
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China
Prior art keywords
water
gas
heat exchanger
valve
pipe
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CNA2007100215107A
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CN100470169C (en
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尚勇军
刘俊
高敏江
赵渝渝
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WUXI COMPRESSOR CO Ltd
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WUXI COMPRESSOR CO Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems
    • Y02B30/625Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/14Combined heat and power generation [CHP]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Abstract

The present invention relates to a minitype cooling-heating-power supply system, concretely is a minitype cooling-heating-power supply system which can fully use smoke residual heat and belongs to refrigeration and air conditioner technology field. In gas path system, a smoke-water heat exchanger connection electric valve and a butterfly valve are connected in parallel to a smoke exhaust pipe at the end of the gas engine generator unit; the gas engine generator unit and a smoke supplemental combustion type lithium bromide refrigerator are connected wit a ball valve group and to a gas pipe, a vacuum hot water boiler is connected to the gas pipe. In water path system, the gas engine generator unit is connected with a water-water heat exchanger by pipeline, and the water-water heat exchanger is connected to a smoke-water heat exchanger by pipeline; the smoke supplemental combustion type lithium bromide refrigerator, the vacuum hot water boiler and the air conditioner water supply pipe of the electrical refrigerator are connected in parallel. The present invention generates electricity by engine, makes the generated smoke residual heat has different operating modes in different seasons, improves the energy using efficiency, improves the electric power reliability, reduces energy consume, needs little investment, small space and has quick effect.

Description

Small-sized electric cold-warm triple power supply system
Technical field
The present invention relates to a kind of small-sized electric cold-warm triple power supply system, specifically make full use of the small-sized cold chp system of fume afterheat, belong to the Refrigeration ﹠ Air-Conditioning technical field.
Background technology
Supply of cooling, heating and electrical powers is a kind of being based upon on the cascaded utilization of energy conceptual foundation, will freeze, heat (comprising heating and heat supply water) and the incorporate supply system of power generation process.Its maximum characteristics are exactly that energy to different qualities carries out cascade utilization, and temperature is used for being generated electricity than heat energy higher, that have big available energy, and the low grade heat energy that temperature is lower then is used to heat supply or refrigeration.Do like this and not only improved utilization efficiency of energy, and reduced carbide and discharge of harmful gases, also have good economic benefit and social benefit.
The small-sized cold chp system is meant that installed capacity is lower than 500kW, is higher than 20kW, and main is the cooling heating and power generation system of fuel with the natural gas.Its nucleus equipment is a thermoelectric conversion device, and in the natural gas cogeneration system that comes into operation at present in the whole world, miniature gas turbine, gas turbine and gas internal-combustion engine are main a few class thermoelectric conversion devices.Because advantage that the gas internal-combustion engine generating set possesses skills is ripe, cheap, generating efficiency is high, part throttle characteristics is good etc., it has become the main force of small-sized cold CCHP.
Conventional compact internal combustion engine cooling heating and power generation system configuration mode comprises equipment such as internal combustion engine, generating set, lithium bromide unit, its basic principle is at first to utilize natural gas power by the oil-electric engine group, fume afterheat with internal combustion engine, sending into the lithium bromide absorption type air conditioner group recycles, heat supply in winter, freeze summer.Its defective is to close when spring and autumn lithium bromide absorption type air conditioner group, and the fume afterheat of generating set will can not get effective utilization.If stop the internal combustion engine generating, then produce the idle problem of unit again.
In addition, find application number 94107554.0 through open source literature retrieval to prior art, name is called the invention of cogeneration system, what adopt is gas turbine power generation, and high-temperature flue gas provides thermic load by heat exchanger to building, the output of not freezing of this system.Application number 01139760, name is called the absorption type heat pump heating apparatus that reclaims combustion and steam circulating thermoelectric plant smoke residual heat, and this system mainly utilizes the Steam Turbine Driven absorption heat pump, and the using waste heat from tail gas that the evaporimeter of heat pump absorbs engine carries out cooling and heat supply.This system is applied to large-scale steam power plant, centralized supply of cooling, heating and electrical powers device, is not suitable for distributed energy resource system on a small scale.Application number 200410067579.X, name is called the family formula cold, heat and power triple supply system that adopts the steam compression type electric heating pump, what adopt is the steam compression type electric heating pump, different with lithium-bromide absorption-type refrigerating machine, only be applicable to family and commercial location application on a small scale, be not suitable for small-sized cold chp systems such as hotel, office building.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of small-sized electric cold-warm triple power supply system that adopts lithium-bromide absorption-type refrigerating machine, at first by the generating of oil-electric engine group, the fume afterheat that is generated has the different methods of operation in different seasons in its system; Winter summer operation flue gas fuel supplementing type bromine cooling machine provides air-conditioning cold (heat) water, use fume afterheat, when the waste heat quantity not sufficient, obtain enough heat supply hot water and refrigeration cold water with lithium bromide absorption type air conditioner afterburning natural gas, the jacket water waste heat enters water-water heat exchanger heating life hot water, and insufficient section is replenished by vacuum hot water boiler; Spring and autumn switches to the operating loop of gas-water heat exchanger; The fume afterheat of discharging from internal combustion engine enter the gas-water heat exchanger and the jacket water waste heat of drawing from water-water heat exchanger together, be used for heating life hot water, insufficient section is additional by vacuum hot water boiler.The present invention has multiple functions such as generating, refrigeration, heat supply, supply domestic hot-water, can improve efficiency of energy utilization, reduces energy consumption, has improved the reliability of electric power, small investment, little, the instant effect of occupation of land.
Main solution of the present invention is achieved in that
The present invention includes gas internal-combustion engine generating set, flue gas fuel supplementing type lithium bromide refrigerator, vacuum hot water boiler, gas-water heat exchanger, water-water heat exchanger etc.In air-channel system, connect butterfly valve, motor-driven valve on the gas circuit that the gas-water heat exchanger connects, connect butterfly valve, motor-driven valve on the gas circuit that flue gas fuel supplementing type lithium bromide refrigerator connects, these two groups of motor-driven valves, butterfly valve are connected in parallel on the gas internal-combustion engine generating set tail flue gas blast pipe again; Connect butterfly valve on the gas-water heat exchanger other end gas circuit to the flue tube that leads to chimney; Connect ball valve group on the gas internal-combustion engine generating set other end gas circuit and be connected with the natural gas pipe; Connect ball valve group on the one end gas circuit of flue gas fuel supplementing type lithium bromide refrigerator and is connected with the natural gas pipe, reception natural gas afterburning, other end gas circuit is connected to the flue tube that leads to chimney; Vacuum hot water boiler one end gas circuit is connected with the natural gas pipe; Other end gas circuit is connected with the flue tube that leads to chimney.
In water circuit system, the gas internal-combustion engine generating set is connected with water-water heat exchanger by pipeline, and water-water heat exchanger connects the gas-water heat exchanger by pipeline; Domestic hot-water's circulating water outlet pipe, domestic hot-water's circulating water inlet, air conditioner water feed pipe, air conditioner water return pipe are set on vacuum hot water boiler; The gas-water heat exchanger is connected with domestic hot-water's circulating water outlet pipe, domestic hot-water's circulating water outlet pipe hot water bag that is connected in parallel; Flue gas fuel supplementing type lithium bromide refrigerator is in parallel with the air conditioner water return pipe of vacuum hot water boiler and electric refrigerating machine, and the air conditioner water feed pipe that is connected with vacuum hot water boiler connection, cooling tower water inlet pipe, cooling tower outlet pipe and air conditioner water feed pipe and air conditioner water return pipe are set on flue gas fuel supplementing type lithium bromide refrigerator; Vacuum hot water boiler is connected with water-water heat exchanger by domestic hot-water's circulating water inlet.
Described gas-water heat exchanger and water-water heat exchanger adopt spiral heat exchanger respectively.Described gas-water heat exchanger is in parallel with stop valve.
On described gas internal-combustion engine generating set and the pipeline that water-water heat exchanger one end is connected constant temperature triple valve, butterfly valve are set respectively, and be divided into two-way, on one road pipeline, connect motor-driven valve, connect butterfly valve, temperature sensor on another road pipeline, on water-water heat exchanger other end pipeline, connect butterfly valve and temperature hi-lo signal alarm instrument.
Compared with the prior art the present invention has the following advantages:
1, the present invention has realized the reasonable cascade utilization of the energy from GOOD TASTE to low taste, thereby energy-efficient, have only 33% with the efficient in the power plant of fossil fuel usually, and the total energy utilization rate of use native system is up to more than 80%; 2, system does not have or has only very low power transmission and distribution loss, need not to build power distribution station, can avoid or reduce the power transmission and distribution cost; 3, system can remedy the deficiency of big electrical network aspect security and stability, improves the reliability of power supply greatly, under big electrical network peak valley electric load differs bigger condition, can also play the effect of peak load shifting, improves the operational efficiency of big electrical network; 4, improve environmental quality, system adopts clean natural gas to act as a fuel, and compares with the coal-burning power plant, does not have severe contaminations such as coal ash and lime-ash; 5, because the high efficiency of system and the low energy consumption of conveying, make the fuel ratio that under the situation that produces the same terminal energy, consumed traditional concentration supply power consumed will lack, correspondingly reduced polluter and greenhouse gases such as the carbon dioxide of discharging, sulfur dioxide, nitrogen oxide.6, the present invention adopts lithium-bromide absorption-type refrigerating machine, with little power consumption, operate steadily, noise is low, and the energy adjustment scope is wide, the automaticity height, installation, maintenance, easy and simple to handle, non-environmental-pollution does not have characteristics such as destruction to atmospheric ozone layer, and become the developing direction of central air-conditioning, have vast market and development prospect.
Description of drawings
Fig. 1 is air-channel system figure of the present invention.
Fig. 2 is water circuit system figure of the present invention.
The specific embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As depicted in figs. 1 and 2: the present invention includes: equipment such as gas internal-combustion engine generating set 1, flue gas fuel supplementing type lithium bromide refrigerator 2, vacuum hot water boiler 3, gas-water heat exchanger 4, water-water heat exchanger 5 (see figure 2)s.Wherein as shown in Figure 1, connect butterfly valve 8,7, motor-driven valve 6 on the gas circuit that gas-water heat exchanger 4 connects, connect butterfly valve 11,10, motor-driven valve 9 on the gas circuit that flue gas fuel supplementing type lithium bromide refrigerator 2 connects, motor-driven valve 6, butterfly valve 7 are connected in parallel on the gas internal-combustion engine generating set 1 tail flue gas blast pipe with motor-driven valve 9, butterfly valve 10.Open motor-driven valve 6 and butterfly valve 7 and 8 by connecting on the pipeline on the gas-water heat exchanger 4 season in spring and autumn, be closed in the motor-driven valve 9 and butterfly valve 10 and 11 that connect on flue gas fuel supplementing type lithium bromide refrigerator 2 pipelines; Open the motor-driven valve 9 and butterfly valve 10 and 11 that connect on flue gas fuel supplementing type lithium bromide refrigerator 2 pipelines in two seasons of summer in winter, close the motor-driven valve 6 and butterfly valve 7 and 8 that connect on gas-water heat exchanger 4 pipelines.By such connected mode, can realize gas internal-combustion engine generating set tail flue gas waste heat making full use of throughout the year.Natural gas line is not only sent into generating in the gas internal-combustion engine generating set 1 by pipeline, also sends into flue gas fuel supplementing type lithium bromide refrigerator 2 and vacuum hot water boiler 3 by one group of ball valve.When two seasons of summer in winter, when the fume afterheat of gas internal-combustion engine generating set 1 is not enough to the changes in temperature load of flue gas fuel supplementing type lithium bromide refrigerator 2 is provided, open natural gas and enter the ball valve of flue gas fuel supplementing type bromine cooling machine 2 sides, flue gas fuel supplementing type lithium bromide refrigerator 2 well-off changes in temperature loads, life is at first obtained by absorbing waste heat by water-water heat exchanger 5 with hot water, when shortage of heat at ordinary times, open vacuum hot water boiler 3 hot water load and heating demand are provided.When spring and autumn did not have cooling and heating load, life can obtain by water-water heat exchanger 5 and gas-water heat exchanger 4 with hot water, and insufficient section is still provided by vacuum hot water boiler 3.
In air-channel system figure, natural gas from the porch 15 ball valves that connect by pipeline 16 respectively UNICOMs and be connected with exhaust stack 18 to gas internal-combustion engine generating set 1, flue gas fuel supplementing type lithium bromide refrigerator 2, vacuum hot water boiler 3 by the ball valve 17 that connects on the pipeline.The fuel inlet place of gas internal-combustion engine generating set 1 is by connecting ball valve 19, filter 20, flowmeter 21, ball valve 22 and pressure gauge 23 on the pipeline, ball valve 24 and y-type filter 25 parallel connections, ball valve 24 porch by another ball valve 27 UNICOMs of connecting on the pipeline to exhaust stack 18.Natural gas also will connect a metal connecting hose 26 on pipeline before entering gas internal-combustion engine generating set 1.The gas inlet place of flue gas fuel supplementing type lithium bromide refrigerator 2 is identical with the connected mode of gas internal-combustion engine generating set 1, also be by on pipeline, connecting ball valve 28, filter 29, flowmeter 30, ball valve 31 and pressure gauge 32, ball valve 33 and y-type filter 34 parallel connections, ball valve 33 inlets are by connecting another ball valve 35 UNICOMs to exhaust stack 18 on pipeline.Natural gas also will connect a metal connecting hose 155 on pipeline before entering flue gas fuel supplementing type lithium bromide refrigerator 2.The fuel inlet place of vacuum hot water boiler 3 need not to filter, and by connect pressure gauge 36 and ball valve 37 on pipeline, ball valve 37 inlets pass through another ball valve 38 UNICOMs to exhaust stack 18.At first on pipeline, connect a metal hose 39 on the tail flue gas blast pipe of gas internal-combustion engine generating set 1, explosion proof door 40 and sewage draining exit 41 have been installed then successively.Explosion proof door 42 and sewage draining exit 43 have also been installed in the exit of flue gas fuel supplementing type lithium bromide refrigerator 2, and butterfly valve 44 also is installed simultaneously.Sewage draining exit 45 has been installed in the outlet of gas-water heat exchanger 4, and temperature sensor 46 and butterfly valve 47 also are installed.In the loop in parallel, safety valve 48, motor-driven valve 49, butterfly valve 50, silencer 51 on pipeline, have been connected successively with flue gas fuel supplementing type lithium bromide refrigerator 2 and gas-water heat exchanger 4.Butterfly valve 52, explosion proof door 53 and sewage draining exit 54 have been installed in the outlet of vacuum hot water boiler 3 on pipeline.The residual air of discharging with flue gas fuel supplementing type lithium bromide refrigerator 2 loops and gas-water heat exchanger 4 loops and vacuum hot water boiler 3 loops from silencer 51 loops finally is discharged in the atmosphere all by delivering to chimney 56 behind the sewage draining exit 55.
The jacket water waste heat of gas internal-combustion engine generating set 1 is fed to water-water heat exchanger 5, is used for heating the domestic hot-water.Water-water heat exchanger 5 is connected with gas-water heat exchanger 4.When two season of summer in winter, gas-water heat exchanger 4 cut out, open with gas-water heat exchanger 4 on stop valve 12 in parallel, stop valve 12 is connected on the pipeline in parallel with gas-water heat exchanger 4, and the hot water that water-water heat exchanger 5 is come out is sent to supply domestic hot-water's hot water bag through the stop valve 12 of gas-water heat exchanger 4 bypass.When spring and autumn is closed flue gas fuel supplementing type lithium bromide refrigerator 2, open gas-water heat exchanger 4, close the stop valve 12 in parallel with gas-water heat exchanger 4, the hot water that water-water heat exchanger 5 is come out is further heated in gas-water heat exchanger 4, thereby makes full use of fume afterheat.Deliver to the hot water bag of supplying the domestic hot-water from the hot water that gas-water heat exchanger 4 comes out.Vacuum hot water boiler advances scene 2 for 3 liang, not only can the supplementary heating domestic hot-water, and can replenish the heating demand in summer, therefore, also link to each other with water knockout drum 86 with the water collector 70 of air conditioner water except with the domestic hot-water supply pipeline links to each other.Flue gas fuel supplementing type bromine cooling machine 2 and cooling tower inlet 57 and export 69 and link to each other, its air conditioner cold and hot water are loaded and are converged mutually with the heating demand circuit of vacuum hot water boiler 3 and link to each other with water knockout drum 86 with water collector 70.The butterfly valve 13 of the backwater that comes out from water collector by a branch road being provided with is to electric refrigerating machine 14.
In water circuit system figure, cooling tower outlet pipe, cooling tower water inlet pipe, air conditioner water feed pipe, air conditioner water return pipe are set respectively on the flue gas fuel supplementing type lithium bromide refrigerator 2.On cooling tower outlet pipe 57 pipelines, connecting balanced valve 58, thermometer 59, Pressure gauge 60, butterfly valve 61, connecting hose 62, y-type filter 63, butterfly valve 64 successively.On cooling tower water inlet pipe 69 pipelines, connect connecting hose 65, Pressure gauge 66, thermometer 67, butterfly valve 68 successively.On air conditioner water feed pipe 86 pipelines of flue gas fuel supplementing type lithium bromide refrigerator 2, connect connecting hose 82, Pressure gauge 83, thermometer 84, butterfly valve 85 successively.On air conditioner water return pipe 70 pipelines of flue gas fuel supplementing type lithium bromide refrigerator 2, connect electronic scale remover 71, butterfly valve 72 butterfly valves 73, temperature sensor 74, balanced valve 75, thermometer 76, Pressure gauge 77, butterfly valve 78, connecting hose 79, y-type filter 80, butterfly valve 81 successively.
Domestic hot-water's circulating water outlet pipe, domestic hot-water's circulating water inlet, air conditioner water feed pipe, air conditioner water return pipe are set respectively on vacuum hot water boiler 3.On air conditioner water return pipe pipeline, connect butterfly valve 87, balanced valve 88, thermometer 89, Pressure gauge 90, connecting hose 91 successively.On air conditioner water feed pipe pipeline, connect connecting hose 92, Pressure gauge 93, thermometer 94, motor-driven valve in parallel 95 and dish valve 96, butterfly valve 97 successively.On domestic hot-water's circulating water inlet pipeline, connect Pressure gauge 125, temperature sensor 126, stop valve 127, stop valve 128,129, thermometer 130, Pressure gauge 131, connecting hose 132 successively.On domestic hot-water's circulating water outlet pipe pipeline, connect connecting hose 133, Pressure gauge 134, thermometer 135, stop valve 136, motor-driven valve in parallel 137 and stop valve 138, stop valve 139 successively.The balanced valve 103, stop valve 104,105,106,107,108 and the balanced valve 109 that are connected on by pipeline from domestic water that hot water bag 98, hot water bag 99, hot water bag 100 introduced and sewage draining exit 101 and sewage draining exit 102 are connected with stop valve 110, and the stop valve 105 and 108 that connects on the pipeline is in closed condition usually.Domestic water enters feed pump 113 and 114 through gathering the back by thermometer 111, the Pressure gauge 112 that is connected on the pipeline, water pump 113 and 114 is connected on the pipeline, comprises the stop valve 115 and 116, connecting hose 117 and 118, feed pump 113 and 114, connecting hose 119 and 120, check-valves 121 and 122, the stop valve 123 and 124 that are connected on the pipeline.The later domestic water of pressure rising is connected with Pressure gauge 125, temperature sensor 126, is divided into two-way then, and the stop valve 127 of leading up to is sent to water-water heat exchanger 5, and another road is sent into vacuum hot water boiler 3 by stop valve 128 grades and heated.Domestic hot-water after vacuum hot water boiler 3 heating is by connecting hose 133 etc., converges mutually with hot water from the gas-water heat exchanger, is back to hot water bag 98, hot water bag 99, hot water bag 100 by three gate valves 140,141,142 that connect on the pipeline then.The porch of water-water heat exchanger is connected with stop valve 127, domestic water enters water-water heat exchanger 5 by stop valve 127 and absorbs heat, heated hot water is at first by a temperature sensor 143, be connected with the gas-water heat exchanger 4 that is parallel with stop valve 12 then, the import of gas-water heat exchanger 4 all is connected with stop valve 144 and 145 with outlet, another temperature sensor 146 has been installed in the parallel pipeline exit, and the hot water that the hot water that is heated replenishes the supply with vacuum hot water boiler 3 is delivered to hot water bag 98,99,100.
The frame of broken lines of gas internal-combustion engine generating set is the inner member of gas internal-combustion engine generating set, except that unit body equipment, also comprises a constant temperature triple valve 153 and an air cooler 154.The jacket water of drawing from gas internal-combustion engine generating set 1 at first passes through constant temperature triple valve 153 and a butterfly valve 147, be divided into two-way then, one tunnel process motor-driven valve 148 turns back to gas internal-combustion engine generating set 1, another road is sent in the water-water heat exchanger 5 and is discharged heat through butterfly valve 149, temperature sensor 150, the jacket water of having put heat turns back to gas internal-combustion engine generating set 1 through a butterfly valve 151 and a temperature hi-lo signal alarm device 152.
On the whole, this scheme is at first to utilize natural gas power by gas internal-combustion engine generating set 1, provides the domestic hot-water with the waste heat in the IC engine cylinder jacket water.Flue gas can both can feed gas-water heat exchanger 4 heating domestic hot-waters according to actual needs in season in spring and autumn, also can directly utilize flue gas fuel supplementing type lithium bromide refrigerator 2 to recycle in two seasons of summer in winter, winter heating, and freeze summer.
The annual unit operation of the present invention is divided into summer in winter and two operations of spring and autumn part.Winter summer operation flue gas fuel supplementing type lithium bromide refrigerator provides air-conditioning cold (heat) water, at first uses fume afterheat, when the waste heat quantity not sufficient, obtains the enough heat supply hot water and the cold water of refrigeration with lithium bromide absorption type air conditioner afterburning natural gas.The jacket water waste heat enters water-water heat exchanger heating life hot water, and insufficient section is replenished by vacuum hot water boiler.
Spring and autumn switches to the operating loop of gas-water heat exchanger.The fume afterheat of discharging from internal combustion engine enter the gas-water heat exchanger and the jacket water waste heat of drawing from water-water heat exchanger together, be used for heating life hot water, insufficient section is additional by vacuum hot water boiler.
System was divided into 4 sections with 1 year: summer, winter and spring and autumn according to meteorological data.All comprise again each season working day and festivals or holidays two kinds of operating modes.
The operation strategy of system at first is the operation strategy of electricity generation system.Prolong the generator working time as far as possible, under greater than 50% load, move as far as possible.Generator is in two seasons of summer in winter, and still be all to move 24 hours continuously festivals or holidays on working day.At Dong Xiata in the working time in the working day in two seasons, oepration at full load.Still unappeasable load is provided by utility grid.In whole day festivals or holidays in the workaday non-working time and two seasons of Dong Xia in two seasons of summer in winter, generator can both satisfy the power load of building fully.
According to the power load of spring and autumn, in the working time on weekdays, the generating function satisfies power load fully.In non-working time on weekdays, load is lower than 50% of generator rating power, therefore shuts down 12 hours, is powered by utility grid.Festivals or holidays, whole day was shut down, and provided electric power by electrical network fully.
The UTILIZATION OF VESIDUAL HEAT IN aspect according to the situation of generator for electricity generation, is making full use of under the waste heat condition that generator discharges, and formulates corresponding cold and heat supply system operation strategy.
Summer situation: preferentially move flue gas fuel supplementing type lithium bromide refrigerator, so that the fume afterheat that utilized exist fully in 24 hours always.In festivals or holidays, the isolated operation of flue gas fuel supplementing type lithium bromide refrigerator just can be satisfied the cooling load of whole day; Working time section in working day, flue gas fuel supplementing type lithium bromide refrigerator can not satisfy refrigeration duty fully, and need increase electric refrigerating machine and assist, and the non-working time section on weekdays, flue gas fuel supplementing type lithium bromide refrigerating function satisfies refrigeration duty fully, need not to open electric refrigerating machine again.Jacket water heats the domestic hot-water all the time, and insufficient section is by the boiler afterburning.
Winter situation: preferentially move flue gas fuel supplementing type lithium bromide refrigerator.Non-working time section in festivals or holidays and working day, flue gas fuel supplementing type lithium bromide refrigerating function satisfies heating demand fully; Working time section on weekdays need be advanced 7 row afterburnings with boiler, together satisfies heating demand.Jacket water heats the domestic hot-water all the time, and insufficient section is by the boiler afterburning.
The spring and autumn situation: spring and autumn does not have cooling and heating demand, has only the domestic hot-water to load, flue gas fuel supplementing type lithium bromide refrigerator dead halt.In the time of generator operation, the domestic hot-water provides thermal source jointly by jacket water and flue gas, the not enough boiler afterburning of using.In the time of generator outage, the domestic hot-water is just obtained by the boiler combustion natural gas fully.

Claims (4)

1, a kind of small-sized electric cold-warm triple power supply system, comprise gas internal-combustion engine generating set (1), vacuum hot water boiler (3), flue gas fuel supplementing type lithium bromide refrigerator (2), it is characterized in that: in air-channel system, connect butterfly valve (8,7), motor-driven valve (6) on the gas circuit that gas-water heat exchanger (4) connects, connect butterfly valve (11,10), motor-driven valve (9) on the gas circuit that flue gas fuel supplementing type lithium bromide refrigerator (2) connects, motor-driven valve (6), butterfly valve (7) are connected in parallel on gas internal-combustion engine generating set (1) the tail flue gas blast pipe with motor-driven valve (9), butterfly valve (10); Connect ball valve group on gas internal-combustion engine generating set (1) other end gas circuit and be connected with the natural gas pipe; Connect butterfly valve (47) to the flue tube that leads to chimney on gas-water heat exchanger (4) other end gas circuit; Connect ball valve group on flue gas fuel supplementing type lithium bromide refrigerator (2) the one end gas circuits and is connected with the natural gas pipe, reception natural gas afterburning, other end gas circuit is connected to the flue tube that leads to chimney; Vacuum hot water boiler (3) one end gas circuits are connected with the natural gas pipe; Other end gas circuit is connected with the flue tube that leads to chimney;
In water circuit system, gas internal-combustion engine generating set (1) is connected with water-water heat exchanger (5) by pipeline, and water-water heat exchanger (5) connects gas-water heat exchanger (4) by pipeline; Domestic hot-water's circulating water outlet pipe, domestic hot-water's circulating water inlet, air conditioner water feed pipe, air conditioner water return pipe are set on vacuum hot water boiler (3); Gas-water heat exchanger (4) is connected with domestic hot-water's circulating water outlet pipe, domestic hot-water's circulating water outlet pipe hot water bag that is connected in parallel; Flue gas fuel supplementing type lithium bromide refrigerator (2) is in parallel with the air conditioner water return pipe of vacuum hot water boiler (3) and electric refrigerating machine (14), and the air conditioner water feed pipe that is connected with vacuum hot water boiler (3) connection, cooling tower water inlet pipe, cooling tower outlet pipe and air conditioner water feed pipe, air conditioner water return pipe are set on flue gas fuel supplementing type lithium bromide refrigerator (2); Vacuum hot water boiler (3) is connected with water-water heat exchanger (5) by domestic hot-water's circulating water inlet.
2, small-sized electric cold-warm triple power supply system according to claim 1 is characterized in that described gas-water heat exchanger (4) and water-water heat exchanger (5) adopt spiral heat exchanger respectively.
3, small-sized electric cold-warm triple power supply system according to claim 1 and 2 is characterized in that upward stop valve in parallel (12) of described gas-water heat exchanger (4).
4, small-sized electric cold-warm triple power supply system according to claim 1, it is characterized in that on described gas internal-combustion engine generating set (1) and the pipeline that water-water heat exchanger (5) one ends are connected constant temperature triple valve, butterfly valve (147) being set respectively, and be divided into two-way, on one road pipeline, connect motor-driven valve (148), connect butterfly valve (149), temperature sensor (150) on another road pipeline, on water-water heat exchanger (5) other end pipeline, connect butterfly valve (151) and temperature hi-lo signal alarm instrument (152).
CNB2007100215107A 2007-04-18 2007-04-18 Small-sized electric cold-warm triple power supply system Expired - Fee Related CN100470169C (en)

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CN102032709A (en) * 2010-12-03 2011-04-27 南京凯盛开能环保能源有限公司 Combined cooling, heating and power system and method for recycling surface radiation of industrial equipment
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CN103868278A (en) * 2014-03-06 2014-06-18 内蒙古科技大学 Low-grade energy driving CO2 absorption type combined cooling heating and power system
CN105180502A (en) * 2015-09-28 2015-12-23 南京河西远大能源服务有限公司 Heat pump and combined cooling heating and power system
CN106762141A (en) * 2017-01-17 2017-05-31 上海航天能源股份有限公司 Using the packaged type cold, heat and electricity triple supply distributed busbar protection of miniature gas turbine
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