CN104314691A - Air suction warming method and warming system of gas turbine compressor - Google Patents
Air suction warming method and warming system of gas turbine compressor Download PDFInfo
- Publication number
- CN104314691A CN104314691A CN201410543888.3A CN201410543888A CN104314691A CN 104314691 A CN104314691 A CN 104314691A CN 201410543888 A CN201410543888 A CN 201410543888A CN 104314691 A CN104314691 A CN 104314691A
- Authority
- CN
- China
- Prior art keywords
- gas turbine
- gas
- air
- heat
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses an air suction warming heat exchanging method and an air suction warming heat exchanging system of a gas turbine compressor, and belongs to the technical field of gas turbines. The warming method comprises heating air suction of the gas turbine compressor by using exhaust gas from the gas turbine as the heat source. The warming system comprises a gas turbine unit, wherein an air inlet is provided with an air intake filter; an air vent or an air vent successive afterheat utilizing system is provided with a heat recovering device; a heating device is arranged at the air intake filter; and the heat recovering device and the heating device are combined to form a heat exchanging network. According to the air suction warming heat exchanging method and the air suction warming heat exchanging system of the gas turbine compressor, the exhaust fuel gas from the air vent of the gas turbine is used as the heat source to warm the inlet air from the compressor. The air suction warming method and the air suction warming system improve the air intake temperature of the compressor, achieve the purpose of preventing freezing of a filter element of the air intake filter or freezing of an inlet blade of the compressor, improve the economical efficiency of the warming process, and avoid unfavorable influence on the working condition of the gas turbine by the heat recover of the gas turbine body.
Description
Technical field
The present invention relates to the heat exchange method in a kind of gas turbine unit and heat-exchange network, especially a kind of gas turbine blower air inlet intensification heat exchange method and intensification heat-exchange system, belong to gas turbine technology field.
Background technique
The essence of Gas-steam Combined Cycle be exactly the Brayton cycle of gas turbine (Brayton Cycle) and steam turbine Rankine cycle (Rankine Cycle) be in series superimposed, form the circulatory system of an associating.Gas turbine and steam turbine combine according to the principle of heat cascade utilization by Gas-steam Combined Cycle, high-grade and low-grade Btu utilization can be got up.It both make use of the advantage that the average endothermic temperature of gas turbine cycle is high and the average exothermic temperature of steam turbine is low, overcame again both shortcomings, so can reach higher cycle efficiency simultaneously.
A typical gas-steam combined circulating generation unit configuration mainly comprises a Gas Turbine Generating Units, an exhaust heat boiler and a steam turbine generator set.Gas turbine comprises air intake filter again, the object of air intake filter is the impurity such as the dust particle in filtered air, what guarantee entered gas turbine blower work is clean air, air intake filter has coarse filtration (also known as coarse filtration filter core) and essence filter (also known as essence filter filter core) usually, and essence filter can adopt again flat filter core or adopt cylindrical filter cartridge two profiles formula.Residual heat boiler for exchanging heat device part generally includes superheater, vaporizer and feed water preheater (also known as economizer), the high-temperature exhaust air of gas turbine enters exhaust heat boiler by air outlet flue, produces steam be supplied to steam turbine acting generating through superheater, vaporizer and feed water preheater.
Due to the factor of gas turbine operation region, particularly when gas turbine operation is in low temperature environment, supporting have the air inlet intensification heating equipment regulating operating mode.Current existing temperature elevation system, have and adopt extra inlet air heating system (adopting electric heating or heated by natural gas) to by the air heating after gas compressor filter element, also have adopt original gas compressor to bleed directly to spray into after air intake filter filter core with compressor air inlet machine Hybrid Heating.Their object is all the air temperature of air inlet after raising gas compressor filter element, also reduces the relative moisture of air simultaneously.
The extra inlet air heating system (electric heating or heated by natural gas) of above-mentioned employing needs to be equipped with electric heating equipment or combustion of natural gas heating plant, and needs to consume electric energy or rock gas, and Economy is poor.
The original gas compressor of above-mentioned employing is bled as the method for thermal source, add the wasted work of gas compressor, decrease the working medium flow of gas turbine burner and high-temperature turbine, reduce the acting of gas turbine high temperature turbine, also just reduce exerting oneself of gas turbine, and also reduce the efficiency of gas turbine.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, a kind of gas turbine blower air inlet temperature-rising method and temperature elevation system are provided, utilize the thermal source of gas turbine engine systems inside as heating source, drop into reduce traditional electrical heating or the equipment of heated by natural gas mode and the energy, avoid the impact on the operating mode of gas turbine own after thermal source extraction simultaneously.
The technical solution used in the present invention is as follows:
A kind of gas turbine blower air inlet temperature-rising method, with the exhaust of gas turbine for thermal source, the air inlet of heating gas turbine gas compressor.Namely from the heat of combustion turbine exhaustion road or air outlet flue follow-up bootstrap system extraction fuel gas exhaust, the fuel gas exhaust heat of extraction is used as the intensification of compressor air inlet machine.
Gas turbine blower air inlet temperature-rising method of the present invention, the extraction of above-mentioned fuel gas exhaust heat, can be the direct extraction of mode of extraction fuel gas exhaust, also can for arrange heat exchanger with the indirect extraction of the mode heating heat-conducting medium in fuel gas exhaust fluid passage; The fuel gas exhaust heat of extraction is used as the process of compressor air inlet machine intensification, directly can heat up, the mode of heat exchange also can be adopted indirectly to heat up for adopting the mode of mixing.
Further, with the exhaust of gas turbine for thermal source, in the air inlet of compressor air inlet machine filter element position heating gas turbine gas compressor.
Further, with the exhaust of gas turbine for thermal source heats air, then the air after heating is delivered to compressor air inlet machine filter element position and mixes with compressor air inlet machine.
Further, side that the coarse filtration that the air after heating is delivered to compressor air inlet machine filter element is given vent to anger, and spray into towards the direction of coarse filtration.
When gas turbine operation is in low temperature environment; inventor is by the discovery that studies for a long period of time: particularly when gas turbine operation is in low temperature and high humidity environment; the filter core of air intake filter easily freezes; pressure reduction before and after filter core may be caused to exceed permitted value after freezing and cause shutting down; or air intake filter protection starts or filter core is destroyed by pressure reduction; even compressor inlet stator or movable vane freeze; thisly to freeze once run up to and to a certain degree will come off, be inhaled into the through-flow position of gas compressor and destroy gas compressor.At this moment the coal addition position of traditional heat source after filter element can not meet the operational requirements of system, by such scheme, makes to solve filter and to operate in worse low temperature and high humidity environment Problems existing.
Adopt the mode of air heating and introduce compressor air inlet machine, efficient heating can be realized, and the air introduced can not shine into impact to combustion gas gas turbine operating mode, does not need to adjust operating mode.
Further, side that the coarse filtration that the air after heating is delivered to compressor air inlet machine filter is given vent to anger, and spray into towards the direction of coarse filtration.
The coarse filtration that air is delivered to compressor air inlet machine filter is given vent to anger side, enter foremost compared to air is introduced into filter, effectively can prevent scattering and disappearing of higher temperature atmospheric heat, the direction simultaneously towards coarse filtration sprays into and can avoid further coarse filtration filter screen freezes.
Further, be describedly combustion turbine combinedly provided with exhaust heat boiler, thermal source comes from the combustion turbine exhaustion passage of exhaust heat boiler.
The program belongs to Gas Turbine Combined-cycle and arranges exhaust heat boiler embodiment, in exhaust heat boiler, exhaust is superheater section, vaporizer section, feed water preheater section and chimney segment successively in general, and the extraction of heat also can from superheater section, vaporizer section, feed water preheater section or chimney segment, because the temperature of feed water preheater section or chimney segment is relatively low, thermal source extraction point is arranged in this section, effectively can reduces the requirement of heat transmission equipment.
A kind of gas turbine blower air inlet temperature elevation system adopting described gas turbine blower air inlet temperature-rising method, comprise gas turbine unit, the intake duct of described gas turbine unit is provided with air intake filter, the air outlet flue of gas turbine unit or the follow-up bootstrap system of air outlet flue are provided with heat extraction device, described air intake filter place is provided with heating arrangement, and described heat extraction device and heating arrangement combination form heat exchange network.
Gas turbine blower air inlet temperature elevation system of the present invention, described heat extraction device can be by the device of direct or indirect for heat extraction, comprises the forms such as extraction pipeline or heat exchanger; Described heating arrangement can be the mixing arrangement that cold and hot gas carries out mixing, or to the heat exchanger form that cold air is conducted heat; Described heat extraction device is connected with heating arrangement and coordinates composition heat exchange network, refers to the heat-exchange network for heat exchange that heat extraction device is directly connected with heating arrangement or is indirectly connected with heat exchange form by the heat exchange unit coordinated and form.
Further, described heat extraction device comprises the heat exchanger be arranged in air outlet flue, and described heat exchanger and heating arrangement form heat-exchange network by pipeline communication, and described heat-exchange network pipeline is provided with fluid delivery system.
Above-mentionedly have employed a kind of indirect heat transfer process, namely fluid enters the heat exchanger being positioned at air outlet flue, and after heating, send into heating arrangement heat air inlet, fluid can select air, and carried by blower fan, mix with air inlet in gas turbine inlet air position.
Further, described gas turbine unit also comprises the exhaust heat boiler being arranged at Gas Generator Set air outlet flue back segment, described heat extraction device comprises the heat exchanger be arranged in exhaust heat boiler section, described heat exchanger and heating arrangement form heat-exchange network by pipeline communication, and described heat-exchange network pipeline is provided with fluid delivery system.
Above-mentionedly have employed a kind of indirect heat transfer process, its thermal source comes as in exhaust heat boiler section, comes as in air outlet flue, can reduce the requirement of heat transmission equipment significantly compared to thermal source.
Further, described gas turbine unit also comprises the exhaust heat boiler being arranged at Gas Generator Set air outlet flue back segment, and described heat extraction device comprises the gas production mouth being opened in exhaust heat boiler and the heat exchanger being arranged at unit outside; Described gas production mouth, heat exchanger and heating arrangement form heat-exchange network by pipeline communication, and described heat-exchange network pipeline is provided with fluid delivery system.
This heat exchanger is arranged at gas turbine outside, can reduce heat exchanger existence and take air outlet flue or exhaust heat boiler volume, directly thermal exhaust be drawn unit, be heated in unit outside by heat exchanger.
Further, described heating arrangement is one group of gas nozzle, and the coarse filtration that described gas nozzle is arranged at air intake filter filter core is given vent to anger side, and gas nozzle outlet is arranged towards coarse filtration side direction of giving vent to anger.Adopt the gas after gas nozzle heating to mix with air inlet, reach the object of heat temperature raising air inlet, what gas nozzle sprayed is air.
A kind of combustion gas or gas-steam combined circulating generation unit, have employed described gas turbine blower air inlet temperature elevation system.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows: gas turbine blower air inlet temperature-rising method of the present invention and temperature elevation system, the fuel gas exhaust in combustion turbine exhaustion road is adopted to originate as thermal source, and as the intensification of compressor inlet air, improve compressor air inlet machine temperature, reduce compressor air inlet machine relative moisture, reach prevent air intake filter filter core from freezing or compressor inlet blade freeze object, compared to existing employing electric heating or heated by natural gas mode, reduce the input of equipment, improve the Economy of temperature-rise period, bleed as the method for thermal source compared to extraction gas compressor in addition, reduce because the heat extraction of gas turbine own is to the adverse effect of gas turbine operating mode.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is one embodiment of the invention structural representations;
Fig. 2 is another embodiment of the present invention structural representation;
Fig. 3 is another embodiment of the present invention structural representation.
Mark in figure: 1-gas production mouth, 2a-fume pipe a, 2b-fume pipe b, 2c-fume pipe c, 3-thermocouple T
fIN, 4-flue gas dish valve, 5-low pressure flue gas blower fan, 6-gas-gas heat exchanger, 7-small air filter, 8-thermocouple T
aIN1, 9a-air conduit a, 9b-air conduit b, 9c-air conduit c, 10-low-pressure air blower fan, 11-thermocouple T
fOUT, 12-flue gas emptying pipe and device, 13-thermocouple T
aOUT1, 14-air dish valve, 15-thermocouple T
aOUT2, 16-thermocouple T
aIN2, 17-hygrometer T
rH3, 18-thermocouple T
aIN3, 19-hygrometer T
rH2, 20-heat air manifold, 21-gas nozzle, 22-coarse filtration, 23-essence filter, 24-superheater, 25-vaporizer, 26-feed water preheater, 27-Cryogenic air heater, 28-high-temperature air heater.
Embodiment
All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this specification (comprising any accessory claim, summary), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Gas turbine blower air inlet temperature-rising method of the present invention, with the exhaust of gas turbine for thermal source, the air inlet of heating gas turbine gas compressor.Namely from the heat of combustion turbine exhaustion road or air outlet flue follow-up bootstrap system extraction fuel gas exhaust, the fuel gas exhaust heat of extraction is used as the intensification of compressor air inlet machine.The extraction of described fuel gas exhaust heat can be the direct extraction of mode of extraction fuel gas exhaust, also can for arrange heat exchanger with the indirect extraction of the mode heating heat-conducting medium in fuel gas exhaust fluid passage; The fuel gas exhaust heat of extraction is used as the process of compressor air inlet machine intensification, directly can heat up, the mode of heat exchange also can be adopted indirectly to heat up for adopting the mode of mixing.
embodiment 1
Gas turbine blower air inlet temperature elevation system of the present invention, comprise gas turbine unit (gas compressor, burner and turbine), the intake duct of described gas turbine unit is provided with air intake filter, described air intake filter is considered 23 by the coarse filtration 22 of arranging successively and essence and is formed, and coarse filtration 22 and essence are provided with thermocouple T between considering 23
aIN216 and hygrometer T
rH317, essence is provided with thermocouple T after considering 23
aIN318 and hygrometer T
rH219; The air outlet flue of gas turbine unit follow-up associating is provided with residual heat steam power generation system, described residual heat steam power generation system comprises exhaust heat boiler and steam turbine, the high-temperature gas of air outlet flue is successively by the superheater 24 of exhaust heat boiler, vaporizer 25, feed water preheater 26 and chimney, and its structure as shown in Figure 1.
Bottom the chimney segment of described residual heat steam power generation system (temperature is about 80 DEG C) offer gas production mouth 1, the outer installment of unit has low pressure flue gas blower fan 5, gas production mouth 1 is communicated with low pressure flue gas blower fan 5 by fume pipe a2a, and this fume pipe a2a is provided with thermocouple T
fIN3 and flue gas dish valve 4; The exiting flue gas pipeline b2b of low pressure flue gas blower fan 5 is provided with gas-gas heat exchanger 6, the low-temperature receiver air conduit b9b of gas-gas heat exchanger 6 is provided with low-pressure air blower fan 10, the inlet air duct a9a of low-pressure air blower fan 10 is also provided with small air filter 7, small air filter 7 is provided with thermocouple T
aIN18, the thermal source outlet fume pipe c2c of gas-gas heat exchanger 6 is provided with flue gas emptying pipe and device 12 and thermocouple T
fOUT11, the low-temperature receiver outlet air pipeline c9c of gas-gas heat exchanger 6 is provided with thermocouple T
aOUT113, air dish valve 14 and thermocouple T
aOUT215, air conduit c9c be arranged at the give vent to anger heating air manifold 20 of side of air intake filter coarse filtration 22 and be connected, heating air manifold 20 is provided with one group of equally distributed gas nozzle 21, and the jet expansion of described gas nozzle 21 is arranged towards coarse filtration 22 side direction of giving vent to anger.
Above-mentioned gas production mouth 1 and gas-gas heat exchanger 6 form heat extraction device, and low-pressure air blower fan 10 and low pressure flue gas blower fan 5 are fluid delivery system, above-mentioned heating air manifold 20 and gas nozzle 21 form described heating arrangement, and are arranged between coarse filtration 22 and essence worry 23.
In order to ensure the energy-conservation and Security that system operates, described fume pipe 2a, flue gas dish valve 4, fume pipe 2b, fume pipe 2c, low pressure flue gas blower fan 5, gas-gas heat exchanger 6, air conduit 9c, air dish valve 14 take thermal insulation layer to protect.
Under non-cryogenic, non-high humidity working environment, when air intake filter and compressor inlet stator, first order movable vane do not occur icing, temperature elevation system of the present invention quits work.Now, described flue gas dish valve 4, air dish valve 14 are in closed condition.
The gas turbine blower air inlet temperature elevation system of the present embodiment, by the air outlet flue flue gas extraction in the chimney of residual heat steam power generation system, the flue gas of extraction heats air, air after heating delivers to the air intake filter of gas compressor front end, mix with the air entered, to improve compressor air inlet machine temperature, reduce compressor air inlet machine relative moisture, reach anti-freeze target.
embodiment 2
Gas turbine blower air inlet temperature elevation system of the present invention, comprise gas turbine unit (gas compressor, burner and turbine), the intake duct of described gas turbine unit is provided with air intake filter, described air intake filter is considered 23 by the coarse filtration 22 of arranging successively and essence and is formed, and coarse filtration 22 and essence are provided with thermocouple T between considering 23
aIN216 and hygrometer T
rH317, essence is provided with thermocouple T after considering 23
aIN318 and hygrometer T
rH219; The air outlet flue of gas turbine unit follow-up associating is provided with residual heat steam power generation system, described residual heat steam power generation system comprises exhaust heat boiler and steam turbine, the high-temperature gas of air outlet flue is successively by the superheater 24 of exhaust heat boiler, vaporizer 25, feed water preheater 26 and chimney, and its structure as shown in Figure 2.
Be provided with Cryogenic air heater 27 in the feed water preheater 26 sections (temperature is about 80 DEG C) of described residual heat steam power generation system, be respectively arranged with thermocouple T at the front and back position of Cryogenic air heater 27 place section
fIN3 and thermocouple T
fOUT11, the inlet air duct b9b of described Cryogenic air heater 27 is provided with the low-pressure air blower fan 10 being positioned at unit outside, low-pressure air blower fan 10 inlet air duct a9a is provided with small air filter 7 and thermocouple T
aIN18; The air conduit c9c that Cryogenic air heater 27 exports is provided with air dish valve 14 and thermocouple T
aOUT113, thermocouple T
aOUT215, air conduit c9c be arranged at the give vent to anger heating air manifold 20 of side of air intake filter coarse filtration 22 and be connected, heating air manifold 20 is provided with one group of equally distributed gas nozzle 21, and the jet expansion of described gas nozzle 21 is arranged towards coarse filtration 22 side direction of giving vent to anger.
The Cryogenic air heater 27 of the present embodiment is as heat extraction device, and low-pressure air blower fan 10 is as fluid delivery system, and described heating air manifold 20 and gas nozzle 21 form described heating arrangement, and is arranged between coarse filtration 22 and essence worry 23.
The present embodiment specifically describes the feed water preheater 26 sections Cryogenic air heater 27 being arranged at exhaust heat boiler, and identical air heater also can be positioned at superheater 24, vaporizer 25 or chimney segment, and different section adopts adaptive material.
In order to ensure the energy-conservation and Security that system operates, described air conduit 9c, air dish valve 14 take thermal insulation layer to protect.
Under non-cryogenic, non-high humidity working environment, when air intake filter and compressor inlet stator, first order movable vane do not occur icing, temperature elevation system of the present invention quits work.Now air dish valve 14 is in closed condition.
The gas turbine blower air inlet temperature elevation system of the present embodiment, in the feed water preheater section of residual heat steam power generation system, heat exchanger is set, and adopt air to carry out heat exchange, air after heating is delivered to the air intake filter of gas compressor front end, carry out with the air entered the temperature mixing to improve air inlet.
embodiment 3
Gas turbine blower air inlet temperature elevation system of the present invention, comprise gas turbine unit (gas compressor, burner and turbine), the intake duct of described gas turbine unit is provided with air intake filter, described air intake filter is considered 23 by the coarse filtration 22 of arranging successively and essence and is formed, and coarse filtration 22 and essence are provided with thermocouple T between considering 23
aIN216 and hygrometer T
rH317, essence is provided with thermocouple T after considering 23
aIN318 and hygrometer T
rH219.Simultaneously the air outlet flue of gas turbine unit is follow-up selectivity can also be arranged to combine and is provided with residual heat steam power generation system, described residual heat steam power generation system comprises exhaust heat boiler and steam turbine, the high-temperature gas of air outlet flue is successively by the superheater 24 of exhaust heat boiler, vaporizer 25, feed water preheater 26 and chimney, and its structure as shown in Figure 2.
In the air outlet flue of gas turbine (temperature is about 600 DEG C), i.e. superheater 24 leading portion of Fig. 3 residual heat steam power generation system, be provided with the high-temperature air heater 28 as heat exchanger, be also respectively arranged with thermocouple T at the air outlet flue section front and back position at high-temperature air heater 28 place
fIN3 and thermocouple T
fOUT11, the inlet air duct b9b of described high-temperature air heater 28 is provided with the low-pressure air blower fan 10 being positioned at unit outside, low-pressure air blower fan 10 inlet air duct a9a is provided with small air filter 7 and thermocouple T
aIN18; The air conduit c9c that high-temperature air heater 28 exports is provided with air dish valve 14 and thermocouple T
aOUT113, thermocouple T
aOUT215, air conduit c9c be arranged at the give vent to anger heating air manifold 20 of side of air intake filter coarse filtration 22 and be connected, heating air manifold 20 is provided with one group of equally distributed gas nozzle 21, and the jet expansion of described gas nozzle 21 is arranged towards coarse filtration 22 side direction of giving vent to anger.
The high-temperature air heater 28 of the present embodiment is as heat extraction device, its operating temperature is higher, heat exchanger component will choose high temperature material, low-pressure air blower fan 10 is as fluid delivery system, described heating air manifold 20 and gas nozzle 21 form described heating arrangement, and heating arrangement is arranged at coarse filtration 22 and essence is considered between 23.
In order to ensure the energy-conservation and Security that system operates, described air conduit 9c, air dish valve 14 take thermal insulation layer to protect.
Under non-cryogenic, non-high humidity working environment, when air intake filter and compressor inlet stator, first order movable vane do not occur icing, temperature elevation system of the present invention quits work.Now air dish valve 14 is in closed condition.
The gas turbine blower air inlet temperature elevation system of the present embodiment, in the air outlet flue of gas turbine, heat exchanger is set, and adopt air to carry out heat exchange, the air after heating is delivered to the air intake filter of gas compressor front end, carry out with the air entered the temperature mixing to improve air inlet.
embodiment 4
Gas turbine blower air inlet temperature elevation system of the present invention, comprise gas turbine unit (gas compressor, burner and turbine), the intake duct of described gas turbine unit is provided with air intake filter, described air intake filter is considered 23 by the coarse filtration 22 of arranging successively and essence and is formed, and coarse filtration 22 and essence are provided with thermocouple T between considering 23
aIN216 and hygrometer T
rH317, essence is provided with thermocouple T after considering 23
aIN318 and hygrometer T
rH219.
With the direct extraction high-temperature gas of pipeline in the air outlet flue of gas turbine, and deliver to coarse filtration 22 air inlet side being arranged at air intake filter, high-temperature gas in described heat exchanger directly and the air that sucks of the gas compressor flow through outside heat exchanger carry out heat exchange, connecting pipe is arranged thermocouple and flue gas dish valve.
In addition, direct extraction high-temperature gas in air outlet flue can also be adopted to deliver to compressor air inlet machine filter 22 air inlet side, directly carry out gas gas hybrid mode suction gas to heat up, but because the component of air outlet flue gas and air are had any different, this scheme need overcome its adverse effect to the design of gas turbine and operating parameters correction.
In theory, for ensureing air intake filter or compressor inlet stator, first order movable vane do not freeze, and the air temperature at this place should be greater than corresponding pressure P
swith the dew point temperature T of humidity RH
s(i.e. saturation temperature), therefore, the heat that the fresh air sucked by small air filter 7 absorbs flue gas through gas-gas heat exchanger should at least make the fresh air after heating and the mixed temperature of compressor air inlet machine filter air inlet be greater than dew point temperature T
s.
Heating up for embodiments of the invention 1, anti-icing system is run, controling parameters basic calculation, chooses most bad working environments (low temperature, high humidity) as design conditions, namely meets following formula:
In formula: Ta-anti-icing system design conditions atmospheric temperature; T
s-according to International Bureau of Wieghts and Measurements BIPM " density of moist air formula " standard, known pressure P
s, atmospheric temperature Ta and atmospheric moisture RH calculate; T
aIN1-design conditions atmospheric temperature, same to Ta; T
aOUT1-design conditions gas hot-air heater heated air outlet temperature; T
aOUT2-design conditions gas hot-air heater adds hot air and arrives inlet air filtration actuator temperature (this temperature value equals TAOUT1-air conduit 9c temperature drop) through air conduit; T
fIN-exhaust heat boiler chimney delivery temperature, i.e. gas-gas heat exchanger smoke inlet temperature; T
fOUT-gas-gas heat exchanger flue gas exit temperature; C
p-flue gas, air specific heat; m
c-gas turbine blower air intake filter air mass, equals compressor air inlet machine flow-heating air mass m
aIN1; m
aIN1-design conditions low-pressure air blower fan 10 is required sucks air quality; m
fIN-design conditions low pressure flue gas blower fan 5 is required sucks exhaust heat boiler exhaust quality; The heat that Q-flue gas, air exchange through gas-gas heat exchanger; A-heat exchanger available heat exchange area; K-total heat transfer coefficient;
t-mean temperature difference;
the maximum value of Td-heat, the cold fluid temperature difference;
the minimum value of Tx heat, the cold fluid temperature difference.
When carrying out the concrete engineering project side of intensification ice system, above design gas-gas heat exchanger area A should consider suitable surplus.When temperature elevation system runs, due to the impact of dust, impurity in local air, the easy degree that water in air part condensation nucleation is frozen can be affected, according to actual motion a period of time experience, should suitably carry out the heated air flow amount m of air intake filter
aIN1with temperature T
aOUT2correction.This adjustment is completed by the aperture of flue gas dish valve 4, air dish valve 14, and other embodiment's calculation methods are consistent with embodiment.
Gas turbine blower air inlet temperature-rising method of the present invention and temperature elevation system, the fuel gas exhaust in combustion turbine exhaustion road is adopted to originate as thermal source, and as the intensification of compressor inlet air, improve compressor air inlet machine temperature, reduce compressor air inlet machine relative moisture, reach prevent air intake filter filter core from freezing or compressor inlet blade freeze object, compared to existing employing electric heating or heated by natural gas mode, reduce the input of equipment, improve the Economy of temperature-rise period, bleed as the method for thermal source compared to extraction gas compressor in addition, reduce because the heat extraction of gas turbine own is to the adverse effect of gas turbine operating mode.
The present invention can be applied to that ground gas turbine air intake filter is anti-icing, ground gas compressor or air compressor air intake filter anti-icing.The present invention both can prevent above-mentioned air intake filter filter core from freezing, and prevented gas compressor or compressor inlet stator or movable vane from freezing simultaneously.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (10)
1. a gas turbine blower air inlet temperature-rising method, is characterized in that: with the exhaust of gas turbine for thermal source, the air inlet of heating gas turbine gas compressor.
2. gas turbine blower air inlet temperature-rising method as claimed in claim 1, is characterized in that: with the exhaust of gas turbine for thermal source, in the air inlet of compressor air inlet machine filter element position heating gas turbine gas compressor.
3. gas turbine blower air inlet temperature-rising method as claimed in claim 2, it is characterized in that: with the exhaust of gas turbine for thermal source heats air, the coarse filtration that air after heating is delivered to compressor air inlet machine filter element to be given vent to anger side, and spray into towards the direction of coarse filtration.
4. gas turbine blower air inlet temperature-rising method as claimed in claim 1, is characterized in that: be describedly combustion turbine combinedly provided with exhaust heat boiler, and thermal source comes from the combustion turbine exhaustion passage of exhaust heat boiler.
5. one kind adopts the gas turbine blower air inlet temperature elevation system of gas turbine blower air inlet temperature-rising method as claimed in claim 1, it is characterized in that: comprise gas turbine unit, the intake duct of described gas turbine unit is provided with air intake filter, the air outlet flue of gas turbine unit or the follow-up bootstrap system of air outlet flue are provided with heat extraction device, described air intake filter place is provided with heating arrangement, and described heat extraction device and heating arrangement combination form heat exchange network.
6. gas turbine blower air inlet temperature elevation system as claimed in claim 5, it is characterized in that: described heat extraction device comprises the heat exchanger be arranged in air outlet flue, described heat exchanger and heating arrangement form heat-exchange network by pipeline communication, and described heat-exchange network pipeline is provided with fluid delivery system.
7. gas turbine blower air inlet temperature elevation system as claimed in claim 5, it is characterized in that: described gas turbine unit also comprises the exhaust heat boiler being arranged at Gas Generator Set air outlet flue back segment, described heat extraction device comprises the heat exchanger be arranged in exhaust heat boiler section, described heat exchanger and heating arrangement form heat-exchange network by pipeline communication, and described heat-exchange network pipeline is provided with fluid delivery system.
8. gas turbine blower air inlet temperature elevation system as claimed in claim 5, it is characterized in that: described gas turbine unit also comprises the exhaust heat boiler being arranged at Gas Generator Set air outlet flue back segment, described heat extraction device comprises the gas production mouth being opened in exhaust heat boiler and the heat exchanger being arranged at unit outside; Described gas production mouth, heat exchanger and heating arrangement form heat-exchange network by pipeline communication, and described heat-exchange network pipeline is provided with fluid delivery system.
9. the gas turbine blower air inlet temperature elevation system as described in any one of claim 5 to 8, it is characterized in that: described heating arrangement is one group of gas nozzle, the coarse filtration that described gas nozzle is arranged at air intake filter filter core is given vent to anger side, and gas nozzle outlet is arranged towards coarse filtration side direction of giving vent to anger.
10. combustion gas or a gas-steam combined circulating generation unit, is characterized in that: adopt the gas turbine blower air inlet temperature elevation system as described in any one of claim 5 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410543888.3A CN104314691A (en) | 2014-10-15 | 2014-10-15 | Air suction warming method and warming system of gas turbine compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410543888.3A CN104314691A (en) | 2014-10-15 | 2014-10-15 | Air suction warming method and warming system of gas turbine compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104314691A true CN104314691A (en) | 2015-01-28 |
Family
ID=52369983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410543888.3A Pending CN104314691A (en) | 2014-10-15 | 2014-10-15 | Air suction warming method and warming system of gas turbine compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104314691A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644494A (en) * | 2016-11-10 | 2017-05-10 | 南京电力设备质量性能检验中心 | Method and apparatus for evaluating moisture resistance of air intake filter of gas turbine |
| CN111241642A (en) * | 2020-01-17 | 2020-06-05 | 四川省德阳裕龙电力设备有限公司 | Design method of axial air inlet and axial air outlet centrifugal compressor |
| CN113464278A (en) * | 2021-07-06 | 2021-10-01 | 华北电力大学 | System for improving gas turbine combined cycle combined heat and power supply peak regulation flexibility |
| CN114508420A (en) * | 2021-12-29 | 2022-05-17 | 东方电气集团东方汽轮机有限公司 | Parallel gas turbine compressor exhaust waste heat utilization system |
| RU2779814C1 (en) * | 2021-12-28 | 2022-09-13 | Общество с ограниченной ответственностью "Газпром трансгаз Самара" | Gas turbine unit of gas pumping unit with anti-iced device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2364553A (en) * | 2000-07-07 | 2002-01-30 | Alstom Power Nv | Operating a steam/gas turbine plant |
| JP2003161164A (en) * | 2001-11-26 | 2003-06-06 | Hitachi Ltd | Combined-cycle power generation plant |
| US20090235634A1 (en) * | 2008-03-24 | 2009-09-24 | General Electric Company | System for extending the turndown range of a turbomachine |
| CN201925028U (en) * | 2010-12-24 | 2011-08-10 | 中国石油天然气股份有限公司 | Anti-icing frost-preventive device of gas inlet system of gas turbine |
| CN102220905A (en) * | 2010-04-16 | 2011-10-19 | 通用电气公司 | Turbine inlet heat transfer system |
| RU127408U1 (en) * | 2012-09-17 | 2013-04-27 | Открытое акционерное общество "ИНТЕР РАО ЕЭС" | GAS TURBINE ANTI-ICE SYSTEM |
| EP2626533A1 (en) * | 2012-02-07 | 2013-08-14 | Siemens Aktiengesellschaft | Method for operating a gas turbine |
| CN204175434U (en) * | 2014-10-15 | 2015-02-25 | 东方电气集团东方汽轮机有限公司 | The combustion gas of gas turbine blower air inlet temperature elevation system and composition thereof or gas-steam combined circulating generation unit |
-
2014
- 2014-10-15 CN CN201410543888.3A patent/CN104314691A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2364553A (en) * | 2000-07-07 | 2002-01-30 | Alstom Power Nv | Operating a steam/gas turbine plant |
| JP2003161164A (en) * | 2001-11-26 | 2003-06-06 | Hitachi Ltd | Combined-cycle power generation plant |
| US20090235634A1 (en) * | 2008-03-24 | 2009-09-24 | General Electric Company | System for extending the turndown range of a turbomachine |
| CN102220905A (en) * | 2010-04-16 | 2011-10-19 | 通用电气公司 | Turbine inlet heat transfer system |
| CN201925028U (en) * | 2010-12-24 | 2011-08-10 | 中国石油天然气股份有限公司 | Anti-icing frost-preventive device of gas inlet system of gas turbine |
| EP2626533A1 (en) * | 2012-02-07 | 2013-08-14 | Siemens Aktiengesellschaft | Method for operating a gas turbine |
| RU127408U1 (en) * | 2012-09-17 | 2013-04-27 | Открытое акционерное общество "ИНТЕР РАО ЕЭС" | GAS TURBINE ANTI-ICE SYSTEM |
| CN204175434U (en) * | 2014-10-15 | 2015-02-25 | 东方电气集团东方汽轮机有限公司 | The combustion gas of gas turbine blower air inlet temperature elevation system and composition thereof or gas-steam combined circulating generation unit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644494A (en) * | 2016-11-10 | 2017-05-10 | 南京电力设备质量性能检验中心 | Method and apparatus for evaluating moisture resistance of air intake filter of gas turbine |
| CN111241642A (en) * | 2020-01-17 | 2020-06-05 | 四川省德阳裕龙电力设备有限公司 | Design method of axial air inlet and axial air outlet centrifugal compressor |
| CN113464278A (en) * | 2021-07-06 | 2021-10-01 | 华北电力大学 | System for improving gas turbine combined cycle combined heat and power supply peak regulation flexibility |
| CN113464278B (en) * | 2021-07-06 | 2022-07-22 | 华北电力大学 | System for improving gas turbine combined cycle combined heat and power supply peak regulation flexibility |
| RU2779814C1 (en) * | 2021-12-28 | 2022-09-13 | Общество с ограниченной ответственностью "Газпром трансгаз Самара" | Gas turbine unit of gas pumping unit with anti-iced device |
| CN114508420A (en) * | 2021-12-29 | 2022-05-17 | 东方电气集团东方汽轮机有限公司 | Parallel gas turbine compressor exhaust waste heat utilization system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102918324B (en) | Exhaust gas residual heat recovery device | |
| JP5399565B2 (en) | Combined cycle power plant using solar heat | |
| CN204175434U (en) | The combustion gas of gas turbine blower air inlet temperature elevation system and composition thereof or gas-steam combined circulating generation unit | |
| CN105019956A (en) | Gas-steam combined cycle power generation waste heat utilization system | |
| US20130199202A1 (en) | System and method for gas turbine inlet air heating | |
| CN103470379A (en) | Combined type energy-saving gas turbine inlet air cooling system | |
| CN104314691A (en) | Air suction warming method and warming system of gas turbine compressor | |
| CN101852134A (en) | Improve the power output of power plant and system, the method and apparatus of efficient | |
| CN107905897A (en) | Gas turbine cycle flue gas waste heat recovery and inlet gas cooling association system and method | |
| CN203099962U (en) | Circulating-water direct heating system of thermal power plant | |
| CN107782125A (en) | A kind of adaptive, self-interacting type heat pump hot blast stove system | |
| CN207178041U (en) | A kind of OTC cooling systems for Combined cycle gas-steam turbine | |
| CN109372601A (en) | A kind of Distributed Integration energy supplying system recycling ventilating gas | |
| RU2489643C1 (en) | Condensation boiler plant (versions) | |
| CN102606237A (en) | Open forward and inverse cycle coupling triple supply system of electricity, heat and cold based on combustion gas turbine | |
| CN103233821B (en) | A kind of air temperature regulating system | |
| JP2014047657A (en) | Moisture utilizing gas turbine system | |
| CN208252232U (en) | A kind of liquefied natural gas (LNG) ship energy consumption system | |
| CN208040541U (en) | Gas turbine cycle flue gas waste heat recovery and inlet gas cooling association system | |
| CN103638784B (en) | A kind of external heated type wet flue gas dehumanization method and dehumidification system | |
| CN104896503A (en) | Boiler smoke waste heat use system | |
| CN102278205A (en) | Combined cycle method capable of being used for distributed air and fuel humidified gas turbine | |
| CN104594964B (en) | A kind of novel single shaft gas theory thermal power plant unit system | |
| PL202912B1 (en) | Electric power generating method and apparatus | |
| CN203547924U (en) | Combined type energy-saving gas turbine inlet air cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
|
| RJ01 | Rejection of invention patent application after publication |