CN207539889U - Gas turbine flue gas residual heat using device - Google Patents
Gas turbine flue gas residual heat using device Download PDFInfo
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- CN207539889U CN207539889U CN201621389516.0U CN201621389516U CN207539889U CN 207539889 U CN207539889 U CN 207539889U CN 201621389516 U CN201621389516 U CN 201621389516U CN 207539889 U CN207539889 U CN 207539889U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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Abstract
The utility model provides a kind of gas turbine flue gas residual heat using device, and low-level (stack-gas) economizer is heated including two level, is located at two groups of heat exchange coils in low-level (stack-gas) economizer successively by flue gas, and the water system in two groups of heat exchange coils is then independent mutually；Condenser outlet is divided into two-way and connects two groups of heat exchange coils in low-level (stack-gas) economizer respectively.Cascade utilization is carried out to the waste heat in discharge of gas turbine flue gas by the way that two level is set to heat low-level (stack-gas) economizer, further rationally reduce tail flue gas temperature, the high-temperature-hot-water of generation is supplied to lithium bromide adsorption water chilling unit, air wall air-treatment unit is with cooling/heating compressor inlet air, to intake air density, temperature is adjusted to realize unit Effec-tive Function, make gas turbine at full capacity with can economical operation under partial load condition, improve combined cycle unit whole year operational efficiency, reduce gas fuel injected volume, NOx discharge is made to achieve the purpose that environmental emission standard.
Description
Technical field
The utility model belongs to gas-fired station technical field, and in particular to a kind of gas turbine flue gas residual heat using device.
Background technology
Gas turbine obtains the attention of people with the features such as its excellent thermal performance and low pollution emission.Gas turbine steams
The startup of vapour combined cycle unit is fast, peaking performance is strong, and the application in electric system is increasingly extensive.
To improve gas turbine operation efficiency, traditional thermodynamic cycle is dedicated to pursuing higher circulation heat absorption temperature, but
The turbine initial temperature that can be allowed by turbine blade cooling technology and material restricts, in addition, with the raising of ignition temperature, heat
Power type NOxDischarge capacity will greatly increase, for avoid because environmental grounds by economic penalties and stop power generation being punished, burning temperature
Degree can be also restricted.In general, gas turbine is less than 1 using poor oil firing and control fuel/air mixture equivalent proportion, combustion gas is reduced
In temperature to reasonable interval, make NOxDischarge capacity reaches environmental emission standard.
Under normal conditions, the output of gas turbine can be reduced with the raising of environment temperature, the reason is that gas turbine category
In constant volume equipment, the atmospheric density flowed through can determine the total quality of air.
Ny=MaCpaT1(ε(k-1)K-1)/ηy (1)
In formula (1)：NyThe wasted work amount of compressor；MaCompressor inlet air mass flow；CpaAir specific heat capacity at constant pressure；T1-
Compressor air inlet machine temperature；The pressure ratio of ε-compressor；The adiabatic exponent of K- air；The efficiency of η y- compressors.
The cycle general power of fuel gas-steam Cycle Unit is：
N=Nt-Nst-Ny-Nzl (2)
In formula (2)：The cycle general power of N- Cycle Units；NtCombustion gas turbine output power；NstThe output of steam turbine
Power；NzlThe work(of refrigeration unit consumption.
By power input to compressor formula (1) it is found that the wasted work amount N of compressoryThermodynamic temperature T with sucking air1Cheng Zheng
Than when that is, atmospheric temperature increases, wasted work increase, the cleared-out power in turn resulting in gas turbine reduces.
It is influenced in high temperature area and hot season, gas turbine performance by environment temperature, output degradation, efficiency
Decrease, influence specific efficiency bigger of the environment temperature to Gas Turbine Output (output power), it is difficult to play gas turbine and
The peaking performance of circulating power station.
Air humidity also has an impact the power and heat consumption rate of gas turbine, and air inlet water capacity increases, then combustion engine power
Decline, heat consumption rate rises.But this influence is typically small, and in entire range of humidity variation, the power of the assembling unit changes within 2 ‰,
Heat consumption rate changes within 1%.In addition, when atmospheric temperature increases, even if at the beginning of combustion gas before the rotating speed and combustion gas turbine of unit
Temperature is kept constant, and the compression ratio of compressor can also be declined, this will cause combustion gas turbine acting to reduce, and the row of combustion gas turbine
Temperature degree is but risen.Therefore, to improve gas turbine operation efficiency, usually also compressor inlet air is taken and is connect indirectly
The two major class type of cooling of touch and direct contact type (sets cooling coil in inlet duct or is set in hot Arid Area and sprayed
Fog cooling apparatus), i.e., compare t/t by improving the temperature of gas turbine0(t be combustion gas initial temperature, t0For intake air initial temperature) improve it
Cycle performance, but this is the mode that unit efficiency is improved in combustion engine oepration at full load.
Such as take the cooling coil type of cooling, windage (20~30mH of cooling coil inlet outlet pressure differential2O it is) larger, it can make
(power input to compressor accounts for combustion engine system wasted work 70% or so) is lost into power input to compressor, reduces combined cycle unit whole efficiency
And output, once and charge air-cooling system be configured, no matter whether it come into operation, this is contributed and reduction of efficiency is
Always it is existing, certain influence can be generated to the economy of gas turbine operation；Cooling coil can be also influenced in inlet duct
Filter, silencer maintenance；Cooling coil is also easily stifled；Cooling coil also makes gas handling system ingress noise become larger.
Spray cooling system is simple, and with good investment, operation and maintenance convenience, power consumption are low.Must be prudent using spray cooling system,
Because the water rate of taking in air crosses the load that senior general aggravates compressor, its performance is made to be affected.Behind usual this kind of system
There are water-separator or collector.Spray cooling system has high requirements to water quality, because micro impurity will cause combustion
The corrosion of blade of gas turbine.The generally requirement of spray cooling system water source is demineralized water.In addition, the cold degree that spray cooling system generates
Relatively low, the air themperature after cooling can only be affected close to wet-bulb temperature by ambient humidity.Spray cooling system is only suitable for
For high temperature drying area GTCC power plant.
After gas turbine is grid-connected, rotating speed no longer changes, and the variation of load is in the condition for ensureing fuel/air mixture equivalent proportion
Under realized by changing inlet air flow rate and fuel flow rate.Gas turbine is the open circulation using air as working medium, operation
Airflow amount is very big, and the adjusting of inlet air flow rate is realized by changing the aperture of compressor inlet adjustable vane IGV.
The reason of by dispatching of power netwoks, gas turbine is frequently necessary to run at part load and unit is gone to from peaking operation pattern
During evening trough operational mode, for gas distributing system pressure stabilization relatively is maintained to need to run at low load.But the aperture of IGV
Too small, surge easily occurs for compressor.It is final to make when gas turbine is when load is less than the operation of 70% nominal output, to export to ensure
Temperature is no more than limits value before power and turbine, and ignition temperature, which cannot be controlled in, generates qualification NOx, CO levels temperature on,
Therefore NOx, CO discharge capacitys can not possibly reach emission request.
Because sulfur content is relatively low in gas component, so tail flue gas temperature can drop to very low, what is had can be by smoke temperature
It is reduced to about 70 DEG C.But due to matching, to avoid the hot water vaporization in low-level (stack-gas) economizer, heat exchange area cannot design very
Greatly, so tail flue gas temperature is still higher, particularly large size (F grades) Combined cycle gas-steam turbine unit, winter or summer are normal
Tail flue gas temperature does not utilize waste heat operating mode at 90 DEG C or so during operation.Therefore tail flue gas waste heat also fully recycle it is latent
Power, it is also the effective approach for improving cycle performance to reduce cycle exothermic temperature.
Although combustion engine reaches peak power output when environment temperature is less than 3 DEG C, in coastal high Humid Area, air inlet is cold
Its temperature cannot be below 5.5 DEG C when but, otherwise there is the possibility of icing, influence the compressor service life.
In addition, also there are the problem of environment temperature is lower, unit load is lower, and combined cycle efficiency is lower for gas turbine.
Therefore, it is necessary to make further technological improvement to different operating conditions.
Utility model content
The technical problems to be solved in the utility model is how in the case where combined cycle gross capability is constant, improves combustion engine
The surge margin of rate of load condensate, combined cycle efficiency and unit, so as to ensure combustion engine stable operation.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of gas turbine flue gas waste heat profit
With device, gas turbine engine systems include gas turbine, and inlet duct is connect with gas turbine, and gas turbine steam exhaust outlet connection is solidifying
Vapour device, it is characterised in that：The flue gas waste heat utilization device includes the low-level (stack-gas) economizer of two level heating, in low-level (stack-gas) economizer
Two groups of heat exchange coils successively by flue gas, the water system in two groups of heat exchange coils is then independent mutually；
Condenser outlet is divided into two-way and connects two groups of heat exchange coils in low-level (stack-gas) economizer respectively；Smoke temperature is wherein connected all the way
Compared with the heat exchange coil entrance of downside, smoke temperature is compared with the heat exchange coil outlet connection oxygen-eliminating device of downside；Another way connects smoke temperature upper side
Heat exchange coil entrance, smoke temperature upper side heat exchange coil outlet is separated into three branches；
Generator in first branch connection lithium bromide adsorption water chilling unit, the return water of lithium bromide adsorption water chilling unit
Pipeline is connected on the water inlet pipe of the heat exchange coil of low-level (stack-gas) economizer smoke temperature upper side；The chilled water of lithium bromide adsorption water chilling unit
Outlet pipeline is connected at the cooling/heating coil pipe in the air wall air-treatment unit of the inlet duct both sides；
Heating coil in the heat exchanger of the second branch connection gas turbine inlet, the water return pipeline of heat exchanger are connected to low temperature
On the water inlet pipe of the heat exchange coil of economizer smoke temperature upper side；
Third branch is connected on water inlet pipe of the low-level (stack-gas) economizer smoke temperature compared with the heat exchange coil of downside.
Preferably, the condenser outlet is equipped with condensate pump, and condensate pump outlet is divided into two-way and connects low temperature province respectively
Two groups of heat exchange coils in coal device.
Preferably, three branch road is respectively equipped with the first hot water electrical two regulating valves, third hot water electrical two-way
Regulating valve, the 4th hot water electrical two regulating valves.
Preferably, set gradually on the lithium bromide adsorption water chilling unit evaporator outlet pipe chilled water water circulating pump,
Chilled water electric three-way regulating valves, chilled water water circulating pump are located at before chilled water electric three-way regulating valves.
Preferably, on the outlet pipe of the heat exchange coil of the low-level (stack-gas) economizer smoke temperature upper side and before three branches
Equipped with hot-water circulating pump.
Preferably, the air wall air-treatment unit cooling/heating coil pipe inlet tube and outlet tube is equipped with multifunctional pump and adjusts dress
It puts, multifunctional pump regulating device includes：
Multifunctional pump on air wall air-treatment unit cooling/heating coil pipe outlet pipeline；It is in parallel with multifunctional pump to set
The bypass shut-off valve put；
Regulating valve on air wall air-treatment unit cooling/heating coil pipe outlet pipeline and after multifunctional pump；
Regulating valve between air wall air-treatment unit cooling/heating coil pipe inlet and outlet pipe.
Preferably, the air wall air-treatment unit cooling/heating coil pipe uses two control；
Chilled water electric butterfly valve, hot water inlet pipe, hot water are respectively equipped on its chilled water water inlet pipe, chilled water outlet pipe
Hot water electrical butterfly valve is respectively equipped on outlet pipe；
Merge one with after the hot water electrical butterfly valve of hot water inlet pipe after the chilled water electric butterfly valve of chilled water water inlet pipe
Inlet pipeline is connected to the water inlet of both sides air wall air-treatment unit cooling/heating coil pipe；
Merge one with after the hot water electrical butterfly valve of hot water outlet pipe after the chilled water electric butterfly valve of chilled water outlet pipe
Outlet pipeline is connected to the water outlet of both sides air wall air-treatment unit.
Preferably, the chilled water water inlet pipe of the air wall air-treatment unit connects lithium bromide adsorption water chilling unit
The chilled water electric three-way regulating valves on evaporator outlet pipe；
The evaporator of the chilled water outlet pipe connection lithium bromide adsorption water chilling unit of the air wall air-treatment unit
Water inlet pipe；
The hot water outlet pipe of the air wall air-treatment unit connects heat exchange coil of the low-level (stack-gas) economizer smoke temperature compared with downside
Water inlet pipe；
The hot water inlet pipe of the air wall air-treatment unit connects low-level (stack-gas) economizer smoke temperature and goes out compared with downside heat exchange coil
Water lines, and hot water inlet pipe is equipped with the second hot water electrical two regulating valves.
Preferably, the absorber cooling water inlet pipe of the lithium bromide adsorption water chilling unit, condenser cooling water water outlet
Pipe connects the cooling water inlet pipe of condenser, cooling water outlet pipe, the absorber of the lithium bromide adsorption water chilling unit respectively
Cooling water inlet pipe is equipped with the electronic two regulating valves of cooling water.
In use, condenser be exported to low-level (stack-gas) economizer condensation water be divided into two tunnels enter two groups in low-level (stack-gas) economizer according to
The secondary heat exchange coil by flue gas；Wherein enter smoke temperature all the way compared with the heat exchange coil of downside, the condensation water section after being heated
Into oxygen-eliminating device；Another way enters the heat exchange coil of smoke temperature upper side, and the condensation water after being heated is separated into three branches；
First branch hot water enters the generator in lithium bromide adsorption water chilling unit, to drive lithium bromide adsorption water chilling
Unit generates chilled water, and return water is connected on the water inlet pipe of the heat exchange coil of low-level (stack-gas) economizer smoke temperature upper side；In gas turbine
During oepration at full load, a part of chilled water enter inlet duct both sides arrangement air wall air-treatment unit in cooling/plus
Hot coil to cool down intake air, improves intake air density；
In gas turbine sections load operation, the second branch hot water enters the heating in the heat exchanger of gas turbine inlet
Coil pipe, with heated inlet natural gas, return water is connected on the water inlet pipe of the heat exchange coil of low-level (stack-gas) economizer smoke temperature upper side；
Third branch hot water is connected to low-level (stack-gas) economizer smoke temperature compared on the water inlet pipe of the heat exchange coil of downside and from condensation water
The low-temperature condensate of pump carries out mixed temperature, to ensure that low-level (stack-gas) economizer inlet water temperature not less than requirement, avoids low-temperature corrosion；
Low-level (stack-gas) economizer smoke temperature enters cold in air wall air-treatment unit compared with downside heat exchange coil outlet hot water part
But/heating coil, with heated inlet air, return water is connected to water inlet pipe of the low-level (stack-gas) economizer smoke temperature compared with downside heat exchange coil.
Gas turbine flue gas residual heat using device provided by the utility model, by set two level heat low-level (stack-gas) economizer,
Hot water type lithium bromide absorption cooling water dispenser group, fan wall air-treatment unit carry out deep exploitation to tail flue gas waste heat, so as to
Compressor inlet air themperature is adjusted, combustion engine rate of load condensate, connection are improved in the case where combined cycle gross capability is constant
The surge margin of cycle efficieny and unit is closed, ensure that combustion engine stable operation.
The utility model carries out ladder by the way that two level is set to heat low-level (stack-gas) economizer to the waste heat in discharge of gas turbine flue gas
Grade utilizes, and further rationally reduces tail flue gas temperature, and the high-temperature-hot-water of generation is supplied to lithium bromide adsorption water chilling unit, sky
Gas wall air-treatment unit is adjusted intake air density, temperature to realize machine with cooling/heating compressor inlet air
Group Effec-tive Function, make the present apparatus reach gas turbine at full capacity under partial load condition can economical operation, improve joint
Cycle Unit whole year operational efficiency reduces gas fuel injected volume, makes NOxDischarge capacity achievees the purpose that environmental emission standard,
Therefore, it has broad application prospects.
Description of the drawings
Fig. 1 is gas turbine flue gas residual heat using device structure diagram provided in this embodiment；
In figure：1st, gas turbine；2nd, inlet duct；3rd, chimney；4th, low-level (stack-gas) economizer；5th, oxygen-eliminating device；6th, condenser；7th, it coagulates
Bear water pump；11st, hot water type lithium bromide absorption cooling water dispenser group；12nd, fan wall air-treatment unit；13rd, chilled water water circulating pump；
14th, hot-water circulating pump；15th, multifunctional pump；16th, multifunctional pump regulating device；17th, heat exchanger；21st, chilled water electric butterfly valve；22nd, it is hot
Water electric butterfly valve；23rd, the electronic two regulating valves of cooling water；24th, the first hot water electrical two regulating valves；25th, the second hot water electrical
Two regulating valves；26th, third hot water electrical two regulating valves；27th, the 4th hot water electrical two regulating valves；28th, chilled water is electronic
Three-way control valve；29th, shut-off valve is bypassed；31st, chilled water feed pipe；32nd, chilled water return pipe；33rd, hot water return pipe；34th, it is hot
Water feed pipe；35th, cooling water supply pipe；36th, cooling water return pipe；37th, flue gas；38th, gas turbine steam exhaust.
Specific embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, in the content for having read the utility model instruction
Later, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms equally fall within this Shen
It please the appended claims limited range.
Fig. 1 be gas turbine flue gas residual heat using device schematic diagram provided in this embodiment, the gas turbine flue gas
Residual heat using device includes low-level (stack-gas) economizer 4, hot water type lithium bromide absorption cooling water dispenser group 11, the fan wall air of two level heating
Handle unit 12, chilled water water circulating pump 13, hot-water circulating pump 14, multifunctional pump regulating device 16, electrically operated valve etc..
Gas turbine engine systems include gas turbine 1, and inlet duct 2 is connect with gas turbine 1；Gas turbine steam exhaust 38 enters
Condenser 6, condenser 6 is exported connects low-level (stack-gas) economizer 4 through condensate pump 7, and boiler export flue gas enters low-level (stack-gas) economizer 4 and changes
Heat, 4 exiting flue gas of low-level (stack-gas) economizer enter chimney 3.
Low-level (stack-gas) economizer 4 is the low-level (stack-gas) economizer of two level heating, and the interior heat exchange coil equipped with two string formations connection, one group is located at
Smoke temperature upper side, another group is located at smoke temperature compared with downside.Two groups of heat exchange coil fume side unicom, successively by flue gas；Steam side
It is independent mutually.
The condensation water that condensate pump 7 is exported to low-level (stack-gas) economizer 4 is divided into two tunnels and enters two groups in low-level (stack-gas) economizer 4 successively
By the heat exchange coil of flue gas.Wherein enter heat exchange coil of the smoke temperature compared with downside all the way, condensation water section after being heated into
Enter oxygen-eliminating device 5, it the advantages of be that the water outlet of low-level (stack-gas) economizer 4 will not be vaporized.Another way enters the heat exchange disk of smoke temperature upper side
Pipe, the condensation water after being heated are separated into three branches.
Wherein, first branch hot water enters the generator in lithium bromide adsorption water chilling unit 11, lithium bromide to be driven to inhale
Receipts formula handpiece Water Chilling Units 11 generate chilled water, and return water is connected on the water inlet pipe of the heat exchange coil of 4 smoke temperature upper side of low-level (stack-gas) economizer；
In 1 oepration at full load of gas turbine, a part of chilled water enters the air wall air-treatment unit of 2 both sides of inlet duct arrangement
Cooling/heating coil pipe in 12 to cool down intake air, improves intake air density；
In 1 operation at part load of gas turbine, the second branch hot water enters in the heat exchanger 17 of 1 entrance of gas turbine
Heating coil, with heated inlet natural gas, return water is connected to the water inlet pipe of the heat exchange coil of 4 smoke temperature upper side of low-level (stack-gas) economizer
On；
Third branch hot water is connected to 4 smoke temperature of low-level (stack-gas) economizer compared on the water inlet pipe of the heat exchange coil of downside and from condensation
The low-temperature condensate of water pump 7 carries out mixed temperature, to ensure that 4 inlet water temperature of low-level (stack-gas) economizer not less than requirement, avoids low-temperature corrosion.
The flow of three above branch hot water passes through the first hot water electrical two regulating valves 24, third hot water electrical two respectively
Logical regulating valve 26, the 4th hot water electrical two regulating valves 27 are adjusted.
4 smoke temperature of low-level (stack-gas) economizer enters cold in air wall air-treatment unit 12 compared with downside heat exchange coil outlet hot water
But/heating coil with heated inlet air, to reduce gas fuel injected volume, improves unit load rate, return water is connected to low
On warm water inlet pipe of 4 smoke temperature of economizer compared with the heat exchange coil of downside.
Chilled water water circulating pump 13, freezing water power are set gradually on 11 evaporator outlet pipe of lithium bromide adsorption water chilling unit
Dynamic three-way control valve 28, chilled water water circulating pump 13 are located at before chilled water electric three-way regulating valves 28.
Because to overcome low-level (stack-gas) economizer 4, lithium bromide adsorption water chilling unit 11, changing in air wall air-treatment unit 12
The resistance of hot coil and its pipeline, on the outlet pipe of the heat exchange coil of 4 smoke temperature upper side of low-level (stack-gas) economizer and in above three
Hot-water circulating pump 14 is set before branch, and the flow of hot-water circulating pump 14 is according to the first hot water electrical of above three branch road
Two regulating valves 24, third hot water electrical two regulating valves 26, the 4th hot water electrical two regulating valves 27 are adjusted.
Two level heats low-level (stack-gas) economizer 4, it the advantages of be to ensure the continuous normal work of lithium bromide adsorption water chilling unit 11
Make, the hot water inflow temperature into 11 high pressure generator of lithium bromide adsorption water chilling unit is not less than 155 DEG C, to use efficiency
Higher double-effect lithium bromide absorption type handpiece Water Chilling Units (economic benefits and social benefits unit COP is 1.0~1.2), hot water inflow temperature is higher, lithium bromide
The COP values of absorption chiller are also higher.
The intake air of outdoor air and inlet duct 2 through 12 cooling/heating of air wall air-treatment unit is mixed
It closes to obtain required compressor inlet air themperature, mixed entering air temperature is no more than 50 DEG C, to ensure pot
The safety of stove back-end surfaces.
Air wall air-treatment unit 12 has the characteristics that air quantity is big, windage is low, little power consumption, cost of investment are relatively low, and
Unit length is short, and cross dimensions can adjust according to actual needs, can meet requirement of the device in arrangement.Compared in inlet duct
The schemes of setting cooling/heating coil pipes in 2, it the advantages of be that the resistance of 1 gas handling system of gas turbine is not influenced.
12 cooling/heating coil pipe of air wall air-treatment unit uses two control, in its chilled water water inlet pipe 31, chilled water
Chilled water electric butterfly valve 21 is provided on outlet pipe 32, hot water electrical butterfly is provided on hot water inlet pipe 34, hot water outlet pipe 33
Valve 22.With being closed after the hot water electrical butterfly valve 22 of hot water inlet pipe 34 after the chilled water electric butterfly valve 21 of chilled water water inlet pipe 31
And an inlet pipeline is connected to the water inlet of two groups of air wall air-treatment units 12, the freezing water power of chilled water outlet pipe 32
After dynamic butterfly valve 21 two groups of air are connected to merging an outlet pipeline after the hot water electrical butterfly valve 22 of hot water outlet pipe 33
The water outlet of wall air-treatment unit 12.By adjust chilled water electric butterfly valve 21 and hot water electrical butterfly valve 22 can carry out it is cold
But/heating cycle switching control.
The chilled water water inlet pipe 31 of air wall air-treatment unit 12 connects the evaporation of lithium bromide adsorption water chilling unit 11
Chilled water electric three-way regulating valves 28 on device outlet pipe.The chilled water outlet pipe 32 of air wall air-treatment unit 12 connects bromine
Change the evaporator water inlet pipe of lithium-absorbing formula handpiece Water Chilling Units 11.The hot water outlet pipe 33 of air wall air-treatment unit 12 connects low temperature
4 smoke temperature of economizer compared with the heat exchange coil of downside water inlet pipe, and tie point be located at " condensate pump 7 exports " with " third branch heat
Water and 4 smoke temperature of low-level (stack-gas) economizer are compared with downside heat exchange coil water inlet pipe tie point " between.The hot water of air wall air-treatment unit 12
Water inlet pipe 34 connects 4 smoke temperature of low-level (stack-gas) economizer compared with the pipeline between downside heat exchange coil and oxygen-eliminating device 5, and on hot water inlet pipe 34
Equipped with the second hot water electrical two regulating valves 25.
To ensure that air wall air-treatment unit 12 works normally under heating cycle, air wall air-treatment unit 12 is cold
But be provided with multifunctional pump regulating device 16 on/heating coil inlet tube and outlet tube, with ensure air wall air-treatment unit 12 cool down/
Heating coil hot water inflow temperature is no more than 95 DEG C.Multifunctional pump regulating device 16 includes multifunctional pump 15, and multifunctional pump 15 is set on air
On the outlet pipeline of wall air-treatment unit 12, multifunctional pump 15 is equipped with bypass shut-off valve 29, and air wall air-treatment unit 12 exists
When working under cooling operating mode, bypass shut-off valve 29 is opened, multifunctional pump 15 does not work；Air wall air-treatment unit 12 into and out of
Regulating valve is equipped between water lines；Regulating valve also is provided on the outlet pipeline of air wall air-treatment unit 12.
11 absorber of lithium bromide adsorption water chilling unit, the cooling water inlet pipe of condenser, cooling water outlet pipe connect respectively
It is connected on the cooling water inlet pipe 35 of condenser 6, on cooling water outlet pipe 36, and in 11 absorber of lithium bromide adsorption water chilling unit
The electronic two regulating valves 23 of cooling water are provided on cooling water inlet pipe.
In cold season, when lithium bromide adsorption water chilling unit 11 does not work, need to close lithium bromide adsorption water chilling unit 11
The first hot water electrical two regulating valves 24 on high pressure generator water inlet pipe.
Gas turbine flue gas residual heat using device provided in this embodiment is relatively independent, does not influence the normal fortune of combustion engine system
Row.Device is easy to implement, and transformation is also convenient for, while range of operation is big, regulation performance is good, adaptable, availability is good, and can be with
The original DCS system of unit organically combines, and realizes the remote monitoring of system, is a technology being worthy to be popularized.
Ozone layer destroying index ODP and the greenhouse effect of lithium bromide-water solution in hot water type lithium bromide absorption cooling water dispenser group
It is zero to answer index GWP, is a kind of green working medium pair of environmentally friendly type.
Fan wall air processing machine packet size have larger flexibility, unit floor space be small, required infrastructure project amount not
Greatly, it does not need to that noise reduction section is separately provided, simple and convenient, reliability height is replaced in repair.
Claims (9)
1. a kind of gas turbine flue gas residual heat using device, gas turbine engine systems include gas turbine (1), inlet duct (2) with
Gas turbine (1) connects, gas turbine (1) steam exhaust outlet connection condenser (6), it is characterised in that：The fume afterheat utilizes
Device includes the low-level (stack-gas) economizer (4) of two level heating, and two groups of heat exchange coils in low-level (stack-gas) economizer (4) are added successively by flue gas
Heat, the water system in two groups of heat exchange coils are then independent mutually；
Condenser (6) outlet is divided into two-way and connects two groups of heat exchange coils in low-level (stack-gas) economizer (4) respectively；Cigarette is wherein connected all the way
Temperature is compared with the heat exchange coil entrance of downside, and smoke temperature is compared with the heat exchange coil outlet connection oxygen-eliminating device (5) of downside；Another way connect smoke temperature compared with
The heat exchange coil entrance of high side, the heat exchange coil outlet of smoke temperature upper side are separated into three branches；
Generator in first branch connection lithium bromide adsorption water chilling unit (11), lithium bromide adsorption water chilling unit (11)
Water return pipeline is connected on the water inlet pipe of the heat exchange coil of low-level (stack-gas) economizer (4) smoke temperature upper side；Lithium bromide adsorption water chilling unit
(11) chilled water outlet pipeline is connected at cold in the air wall air-treatment unit (12) of the inlet duct (2) both sides
But/heating coil；
Heating coil in the heat exchanger (17) of the second branch connection gas turbine (1) entrance, the water return pipeline of heat exchanger (17)
It is connected on the water inlet pipe of the heat exchange coil of low-level (stack-gas) economizer (4) smoke temperature upper side；
Third branch is connected on water inlet pipe of low-level (stack-gas) economizer (4) smoke temperature compared with the heat exchange coil of downside.
2. a kind of gas turbine flue gas residual heat using device as described in claim 1, it is characterised in that：The condenser (6)
Outlet is equipped with condensate pump (7), and condensate pump (7) outlet is divided into two-way and connects two groups of heat exchange in low-level (stack-gas) economizer (4) respectively
Coil pipe.
3. a kind of gas turbine flue gas residual heat using device as described in claim 1, it is characterised in that：Three branch road
It is respectively equipped with the first hot water electrical two regulating valves (24), third hot water electrical two regulating valves (26), the 4th hot water electrical two
Logical regulating valve (27).
4. a kind of gas turbine flue gas residual heat using device as described in claim 1, it is characterised in that：The lithium bromide absorption
Chilled water water circulating pump (13), chilled water electric three-way regulating valves are set gradually on formula handpiece Water Chilling Units (11) evaporator outlet pipe
(28), chilled water water circulating pump (13) is before chilled water electric three-way regulating valves (28).
5. a kind of gas turbine flue gas residual heat using device as described in claim 1, it is characterised in that：The low-level (stack-gas) economizer
(4) hot-water circulating pump (14) is equipped on the outlet pipe of the heat exchange coil of smoke temperature upper side and before three branches.
6. a kind of gas turbine flue gas residual heat using device as described in claim 1, it is characterised in that：The air wall air
It handles unit (12) cooling/heating coil pipe inlet tube and outlet tube and is equipped with multifunctional pump regulating device (16), multifunctional pump regulating device (16)
Including：
Multifunctional pump (15) on air wall air-treatment unit (12) cooling/heating coil pipe outlet pipeline；
The bypass shut-off valve (29) being arranged in parallel with multifunctional pump (15)；
Adjusting on air wall air-treatment unit (12) cooling/heating coil pipe outlet pipeline and after multifunctional pump (15)
Valve；
Regulating valve between air wall air-treatment unit (12) cooling/heating coil pipe inlet and outlet pipe.
7. a kind of gas turbine flue gas residual heat using device as claimed in claim 4, it is characterised in that：The air wall air
It handles unit (12) cooling/heating coil pipe and uses two control；
Be respectively equipped with chilled water electric butterfly valve (21) on its chilled water water inlet pipe (31), chilled water outlet pipe (32), hot water into
Hot water electrical butterfly valve (22) is respectively equipped on water pipe (34), hot water outlet pipe (33)；
Hot water electrical butterfly valve after the chilled water electric butterfly valve (21) of chilled water water inlet pipe (31) with hot water inlet pipe (34)
(22) merge the water inlet that an inlet pipeline is connected to both sides air wall air-treatment unit (12) cooling/heating coil pipe after
Mouthful；
Hot water electrical butterfly valve after the chilled water electric butterfly valve (21) of chilled water outlet pipe (32) with hot water outlet pipe (33)
(22) merge the water outlet that an outlet pipeline is connected to both sides air wall air-treatment unit (12) after.
8. a kind of gas turbine flue gas residual heat using device as claimed in claim 7, it is characterised in that：The air wall air
It handles on the evaporator outlet pipe of chilled water water inlet pipe (31) connection lithium bromide adsorption water chilling unit (11) of unit (12)
The chilled water electric three-way regulating valves (28)；
Chilled water outlet pipe (32) the connection lithium bromide adsorption water chilling unit (11) of the air wall air-treatment unit (12)
Evaporator water inlet pipe；
The hot water outlet pipe (33) of the air wall air-treatment unit (12) connects low-level (stack-gas) economizer (4) smoke temperature changing compared with downside
The water inlet pipe of hot coil；
The hot water inlet pipe (34) of the air wall air-treatment unit (12) connects low-level (stack-gas) economizer (4) smoke temperature and exchanges heat compared with downside
Coil pipe outlet pipeline, and hot water inlet pipe (34) is equipped with the second hot water electrical two regulating valves (25).
9. a kind of gas turbine flue gas residual heat using device as described in claim 1, it is characterised in that：The lithium bromide absorption
Absorber cooling water inlet pipe, the condenser cooling water outlet pipe of formula handpiece Water Chilling Units (11) connect the cooling of condenser (6) respectively
Water water inlet pipe (35), cooling water outlet pipe (36), the absorber cooling water water inlet of the lithium bromide adsorption water chilling unit (11)
Pipe is equipped with the electronic two regulating valves of cooling water (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389516.0U CN207539889U (en) | 2016-12-16 | 2016-12-16 | Gas turbine flue gas residual heat using device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621389516.0U CN207539889U (en) | 2016-12-16 | 2016-12-16 | Gas turbine flue gas residual heat using device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207539889U true CN207539889U (en) | 2018-06-26 |
Family
ID=62606978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621389516.0U Active CN207539889U (en) | 2016-12-16 | 2016-12-16 | Gas turbine flue gas residual heat using device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207539889U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765045A (en) * | 2016-12-16 | 2017-05-31 | 中电投电力工程有限公司 | A kind of gas turbine flue gas residual heat using device and method |
| CN112304108A (en) * | 2020-09-18 | 2021-02-02 | 华电电力科学研究院有限公司 | System and method for utilizing heat of blowing compressed air for combustion engine |
-
2016
- 2016-12-16 CN CN201621389516.0U patent/CN207539889U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765045A (en) * | 2016-12-16 | 2017-05-31 | 中电投电力工程有限公司 | A kind of gas turbine flue gas residual heat using device and method |
| CN112304108A (en) * | 2020-09-18 | 2021-02-02 | 华电电力科学研究院有限公司 | System and method for utilizing heat of blowing compressed air for combustion engine |
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Address after: 200233 No. 7, Lane 888, Tianlin Road, Minhang District, Shanghai Patentee after: Shanghai Energy Technology Development Co.,Ltd. Address before: 201100 No.7, Lane 888, Tianlin Road, Minhang District, Shanghai Patentee before: CPI ELECTRIC POWER ENGINEERING CO.,LTD. |
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