CN106703919A - Residual pressure and waste heat comprehensive utilization system for gas boiler room - Google Patents
Residual pressure and waste heat comprehensive utilization system for gas boiler room Download PDFInfo
- Publication number
- CN106703919A CN106703919A CN201611270710.1A CN201611270710A CN106703919A CN 106703919 A CN106703919 A CN 106703919A CN 201611270710 A CN201611270710 A CN 201611270710A CN 106703919 A CN106703919 A CN 106703919A
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- Prior art keywords
- gas
- preheater
- pressure
- pipeline
- turbo
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K11/00—Plants characterised by the engines being structurally combined with boilers or condensers
- F01K11/02—Plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention relates to the fields of energy conversion, energy conservation and emission reduction, in particular to a residual pressure and waste heat comprehensive utilization system for a gas boiler room. By ingeniously connecting and controlling a boiler, preheaters and expansion machines, residual pressure and waste heat resources of the gas boiler room are utilized comprehensively, pressure energy and heat energy are converted into electric energy, and throttling and pressure reducing loss of high-pressure gas can be reduced; and a traditional gas pressure-regulating box which cannot achieve residual pressure and waste heat utilization is replaced by the preheaters, a power generator, the expansion machines and the like. High-temperature smoke exhausted by the coal-fired boiler is cooled through low-temperature gas, so that steam is condensed to absorb nitric oxide, and pollutant emission is further reduced. Electric energy output by the power generator can be directly input to a microgrid in a gate station so as to be supplied to monitoring equipment such as electrical equipment and illuminating equipment for use. Meanwhile, through a gas pressure-regulating box in parallel connection with the assemblies such as the preheaters, the power generator and the expansion machines, stable operation of the gas boiler under fluctuation working conditions and emergency faults can be effectively guaranteed.
Description
Technical field
The present invention relates to energy conversion and energy-saving and emission-reduction field, more particularly to a kind of pipeline for gas overbottom pressure residual heat integrative profit
Use system.
Background technology
It is natural gas hair as, to environmental protection pay attention to day by day, the demand to clean energy resource is further urgent in world wide
Exhibition brings opportunity.Natural gas belongs to clean energy resource, and the discharge capacity of sulfur dioxide, dust is close to zero, titanium dioxide in burning
The discharge capacity of carbon and nitrogen oxides is down to 40% and 50% compared to coal respectively；Influence of the natural gas to greenhouse effects is only stone
The 54% of oil, the 48% of coal.
In recent years, in Middle And Eastern China, Beijing-tianjin-hebei Region haze weather is wreaked havoc, and air environmental pollution situation is tighter
High, the key factor for causing this serious situation is coal-smoke pollution, replaces coal-fired by natural gas, it will effectively reduce flue gas dirty
Dye, improves atmospheric environment.At present, coal-burning boiler " coal changes gas " task is all being carried out in numerous cities, carries forward vigorously gas fired-boiler
Build, further increase demand of each city to natural gas.
However, due to Middle Eastern scarcity of resources, the natural gas needed for city is mainly by pressure piping from other places
Input.The high-pressure natural gas come by the conveying of high pressure Trunk-line, in incity, natural gas receives door station, voltage regulating station, is required for root
It is depressured according to the supply gas pressure requirement of downstream user, gas user, industrial and commercial user etc. then can be supplied to use.
In pipeline for gas, high-pressure natural gas pressure after pressure regulation is down to the middle pressure standard of 0.2~0.4MPa (G), into gas-fired boiler
Stove burns, and output hot water or steam supply town dweller use.High-pressure natural gas will produce very big during pressure regulation
Pressure drop, while discharging substantial amounts of pressure energy.By fuel gas pressure-regulating box realization, pressure energy direct losses more than current this process
It is not utilized.Meanwhile, it is not high that the high-temperature flue gas that gas fired-boiler is discharged are typically due to heat taste, it is difficult to utilizes, also in vain
Waste, a small amount of pollutant nitrogen oxides is not also processed.
Traditional fuel gas pressure-regulating box is substituted using turbine power generation unit sled block, the overbottom pressure residual heat resources of pipeline for gas are comprehensive
Close and utilize, be electric energy by pressure energy and thermal energy, the loss of high-pressure gas reducing pressure by regulating flow can be reduced.However, being related to combustion gas at present
The research and existing patented technology that pressure energy is utilized are focused mostly at natural valve station, and no residual heat resources can be utilized, output
Electric energy can not internal digestion.Fuel gas temperature generally after expansion is relatively low, is used to ice making or supplies other to need cold
Process equipment.
The content of the invention
Based on above-mentioned situation, it is necessary to which providing a kind of pressure energy that would sit idle for and discarded heat energy carries out comprehensive reutilization
Pipeline for gas overbottom pressure waste heat comprehensive utilization system.
A kind of pipeline for gas overbottom pressure waste heat comprehensive utilization system, including：Preheater, turbo-expander, gas fired-boiler and
Generator, the pre-heating intaking of the preheater mouthful is connected with high-pressure gas pipeline, the preheating gas outlet of the preheater and turbine
The air inlet connection of expanding machine, the gas outlet of the turbo-expander is connected with the air inlet of boiler, the gas outlet of the boiler
It is connected with the heating air inlet of preheater, the heating gas outlet of the preheater is connected with low-temperature flue gas pipeline；The turbine is swollen
Swollen machine is connected with generator drive gear, and the generator is electrically connected with electrical load.
Further, turbine flow speed control valve is additionally provided between the preheater pre-heating intaking mouthful and high-pressure gas pipeline, it is described
Turbine flow speed control valve is single choke valve or in parallel by multiple choke valves.
Further, the boiler air inlet is also directly connected with high-pressure gas pipeline, the boiler air inlet with it is high
Fuel gas pressure-regulating box is provided between compression ignition feed channel carries out pressure regulation, and the fuel gas pressure-regulating box is single channel, two-way or multi-channel parallel.
Improved as one kind, the preheater is one group of preheater, the preheater group includes at least one-level preheater, institute
Turbo-expander is stated for one group of turbo-expander, the Turbine expansion unit includes at least one-level turbo-expander；Described upper one
The gas outlet of level turbo-expander is connected with next stage preheater pre-heating intaking mouthful；Boiler exit gas mouth respectively with preheatings at different levels
Device heating air inlet connection, the preheater heating gas outlets at different levels are connected with low-temperature flue gas pipeline respectively.
As a further improvement, being additionally provided with vortex-shedding meter between the fuel gas pressure-regulating box and boiler air inlet, control
The combustion gas stream value that system is fed back according to the vortex-shedding meter, automatically adjusts the turbine flow speed control valve and the fuel gas pressure-regulating box
Aperture.
Specifically, the preheater group is appointing in shell-and-tube heat exchanger, double pipe heat exchanger or plate-fin heat exchanger
What one or more of combination；The Turbine expansion unit is multistage footpath axial-flow type expanding machine, or multiatage axial flow expanding machine
Or any combination of above two structure.
Specifically, the generator is explosion-proof power generator, the explosion-proof power generator is flame-proof type structure, or INCREASEDSAFETY knot
Structure, or positive pressure type structure.
Specifically, being additionally provided with decelerator between the explosion-proof power generator and Turbine expansion unit, the decelerator is multistage
Parallel axle construction, or multi-stage planetary drive, or collectively form overall gear assembling with the turbo-expanders at different levels
Formula structure.
Further, the turbine flow speed control valve, preheater group, Turbine expansion unit, decelerator, the common structure of explosion-proof power generator
Block is prized into turbine power generation unit, the turbine power generation unit sled block is stationary structure or moveable structure.
Improved as one kind, the preheater group includes one-level preheater and two grades of preheaters, the Turbine expansion unit
Including one-level turbo-expander and two grades of turbo-expanders, the one-level preheater pre-heating intaking mouthful connects with high-pressure gas pipeline
Connect, the one-level preheater preheating gas outlet is connected with one-level turbo-expander air inlet, the one-level turbo-expander outlet
Mouth is connected with two grades of preheater pre-heating intakings mouthful, and two grades of preheaters preheating gas outlet connects with two grades of turbo-expander air inlets
Connect, two grades of turbo-expander gas outlets are connected with boiler air inlet；Boiler exit gas mouth respectively with one-level preheater and
The heating air inlets connection of two grades of preheaters, the one-level preheater and two grades of heating gas outlets of preheater respectively with low temperature cigarette
Feed channel is connected.
A kind of pipeline for gas overbottom pressure waste heat comprehensive utilization system of the present invention, by the way that boiler, preheater and expansion is adroit
Wonderful connection and control, the overbottom pressure residual heat resources of pipeline for gas are comprehensively utilized, and are electric energy by pressure energy and thermal energy, can
Reduce the loss of high-pressure gas reducing pressure by regulating flow；Be instead of using components such as preheater, generator and expanding machines can not utilize more than overbottom pressure
The conventional gas pressure regulating box of heat.The high-temperature flue gas of discharged from coal-fired boiler are cooled down by the relatively low combustion gas of temperature, make water vapor condensation,
Absorbing NOx, also further reduces the discharge of pollutant.It is internal that the electric energy of generator output can be directly incorporated into a station
Micro-capacitance sensor, supply electrical equipment, the monitoring device such as lighting apparatus etc. and use.Meanwhile, and preheater, generator and expanding machine etc.
The fuel gas pressure-regulating box of modules in parallel can effective guarantee fluctuation operating mode and emergency under gas fired-boiler stable operation.
Brief description of the drawings
Fig. 1 is a kind of pipeline for gas overbottom pressure waste heat comprehensive utilization system structural representation of the invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become apparent from, below in conjunction with drawings and Examples, to this hair
It is bright to be further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and without
It is of the invention in limiting.
A kind of pipeline for gas overbottom pressure waste heat comprehensive utilization system of the present invention, including：Preheater, turbo-expander, combustion gas
Boiler and generator, the pre-heating intaking of the preheater mouthful be connecteds with high-pressure gas pipeline, the preheater pre-heating intaking mouth and
Be additionally provided with turbine flow speed control valve between high-pressure gas pipeline, the turbine flow speed control valve be single choke valve or by multiple choke valves simultaneously
Connection；The preheating gas outlet of the preheater is connected with the air inlet of turbo-expander, the gas outlet of the turbo-expander and pot
The air inlet connection of stove, the gas outlet of the boiler is connected with the heating air inlet of preheater, the heating outlet of the preheater
Mouth is connected with low-temperature flue gas pipeline；The turbo-expander is connected with generator drive gear, and the generator is electrical with electrical load
Connection.
Boiler air inlet is also directly connected with high-pressure gas pipeline, is set between the boiler air inlet and high-pressure gas pipeline
Having fuel gas pressure-regulating box carries out pressure regulation, and the fuel gas pressure-regulating box is single channel, two-way or multi-channel parallel.The turbine flow speed control valve, in advance
Hot device, turbo-expander, decelerator, explosion-proof power generator collectively form turbine power generation unit sled block, turbine power generation unit sled block with
Conventional gas pressure regulating box is in parallel, can under effective guarantee fluctuation operating mode and emergency gas fired-boiler stable operation；The turbine
Generating set sled block is stationary structure or moveable structure.
Used as a kind of preferred embodiment, preheater is one group of preheater, and preheater group includes at least one-level preheater, turbine
Expanding machine is one group of turbo-expander, and Turbine expansion unit includes at least one-level turbo-expander；The upper level turbine expansion
The gas outlet of machine is connected with next stage preheater pre-heating intaking mouthful；The boiler exit gas mouth heats air inlet with preheaters at different levels respectively
Mouth connection, the preheaters heating gas outlets at different levels are connected with low-temperature flue gas pipeline respectively.
Used as a preferred embodiment of the invention, the preheater group includes two-stage preheater, respectively one-level preheating
Device and two grades of preheaters, the Turbine expansion unit include two stage turbine expanding machine, respectively one-level turbo-expander and two grades
Turbo-expander.It is specific as shown in Figure 1：
The pipeline for gas overbottom pressure waste heat comprehensive utilization system that the present invention is provided includes：Turbine flow speed control valve 1, one-level preheater
2, two grades of preheaters 3, one-level turbo-expander 4, two grades of turbo-expanders 5, decelerator 6, explosion-proof power generator 7, inside boiler room
Micro-capacitance sensor 8, electrical load 9, fuel gas pressure-regulating box 10, vortex-shedding meter 11, gas fired-boiler 12；The equipment 1~7 constitutes turbine hair
Group of motors prizes block, and the turbine power generation unit sled block is stationary structure or moveable structure.
Wherein, the pre-heating intaking of one-level preheater 2 mouthful is connected with high-pressure gas pipeline, and the one-level preheater 2 preheats outlet
Mouthful it is connected with the air inlet of one-level turbo-expander 4, the gas outlet of one-level turbo-expander 4 and two grades of pre-heating intakings of preheater 3
Mouth connection, two grades of preheaters 3 preheating gas outlet is connected with two grades of air inlets of turbo-expander 5, two grades of turbine expansions
The gas outlet of machine 5 is connected with the air inlet of boiler 12；The gas outlet of the boiler 12 respectively with one-level preheater 2 and two grades of preheaters 3
Heating air inlet connection, the one-level preheater 2 and two grades of heating gas outlets of preheater 3 connect with low-temperature flue gas pipeline respectively
Connect.
As preferred embodiment, vortex-shedding meter is additionally provided between the fuel gas pressure-regulating box 10 and the air inlet of boiler 12
11, the fuel gas pressure-regulating box 10 and turbine power generation unit prize block parallel running, and control system is anti-according to the vortex-shedding meter 11
The combustion gas stream value of feedback, automatically adjusts the aperture of the turbine flow speed control valve 1 and the fuel gas pressure-regulating box 10.
With seasonal change, user can change to the demand of heat supply, therefore can also cause pipeline for gas 12 to fire
Gas flow needed for burning.In order to realize under the gas flow operating mode of fluctuation, turbine power generation unit sled block being capable of safety and stability
Operation, need to configure fuel gas pressure-regulating box 10 and turbine power generation unit sled block parallel running.In the case where demand combustion gas stream value is set,
The actual combustion gas stream value that control system is fed back by vortex-shedding meter 11, automatically adjusts turbine flow speed control valve 1 and fuel gas pressure-regulating box
10 aperture.When gas flow is normal, turbine flow speed control valve 1 works, and controls one-level turbo-expander 4 and two grades of turbo-expanders
5 invariablenes turning speed, fuel gas pressure-regulating box 10 is closed and not worked.When gas flow demand increases, the aperture of control turbine flow speed control valve 1 is not
Become, gradually increase the aperture of fuel gas pressure-regulating box 10, the gas quantity for increasing is entered combustion gas by the expenditure and pressure of fuel gas pressure-regulating box 10
Boiler 12.When gas flow demand reduces, fuel gas pressure-regulating box 10 is closed and not worked, and control turbine flow speed control valve 1 is gradually reduced out
Degree, makes to prize the gas quantity reduction for entering gas fired-boiler 12 after block depressurizes by turbine power generation unit.
As one kind preferably, the preheater group is shell-and-tube heat exchanger, double pipe heat exchanger or plate-fin heat exchanger
Any one of or various combinations；The Turbine expansion unit is multistage footpath axial-flow type expanding machine, or multiatage axial flow
Any combination of expanding machine or above two structure.
Specifically, the generator is explosion-proof power generator, the explosion-proof power generator is flame-proof type structure, or INCREASEDSAFETY knot
Structure, or positive pressure type structure.Decelerator is additionally provided between the explosion-proof power generator and Turbine expansion unit, the decelerator is many
The parallel axle construction of level, or multi-stage planetary drive, or collectively form overall gear group with the turbo-expanders at different levels
Dress formula structure.
High-pressure gas enter the combustion gas after the turbine power generation unit prizes block and the fuel gas pressure-regulating box 10 depressurizes
Boiler 12 burns, external quantity of heat given up, while producing high-temperature flue gas to enter the one-level preheater 2 and two grades of preheaters 3, preheating
Lower the temperature after high-pressure gas and discharge.The turbine power generation unit sled block output electric energy enters boiler room inside micro-capacitance sensor 8, for institute
Electrical load 9 is stated to use.
Preferably, the admission pressure of high-pressure gas is 0.5~3MPa, and charge flow rate is 5000~100000Nm3/h, described
One-level turbo-expander 4 and two grades of intake air temperature of turbo-expander 5 are 50~100 DEG C, the exhaust temperature of the gas fired-boiler 12
Spend is 10~30 DEG C；It is 0.1~2MW that the turbine power generation unit prizes packaged machine generated energy.
It is appreciated that in above-mentioned pipeline for gas overbottom pressure comprehensive waste-heat utilizing device running, when high-pressure gas pass through
After turbine flow speed control valve 1 reaches setting inlet pressure and flow, then preheated by one-level preheater 2, into one-level turbo-expander 4
Entrance, expands in first order jet nozzle and active wheel, subsequently enters two grades of preheaters 3 and preheats, and is again introduced into compound expansion machine 5 swollen
It is swollen, promote the rotation acting of turbine expansion machine rotor.Because rotor speed is higher, rotating speed need to be down to by decelerator 6 and put explosion-proof
The rated speed of generator 7, and then drive explosion-proof power generator 7 to generate electricity, output electric energy is incorporated to boiler room inside micro-capacitance sensor 8 in factory
Electrical load 9 is used.Low-pressure fuel gas after expansion are burnt into gas fired-boiler 12, and externally output heat energy is used for town users,
High-temperature flue gas are produced to enter one-level preheater 2 and two grades of preheaters 3 simultaneously, high-temperature flue gas enter in every one-level preheater with combustion gas
Row sufficiently heat exchange, improves temperature and enthalpy, and then increase the output work per one-level turbo-expander.High-temperature flue gas are cold by combustion gas
But after, contained vapor is gradually condensed, and condensed water absorbs substantial amounts of harmful nitrogen oxides, subsequent discharges into special flue gas leading
Road.
The pipeline for gas overbottom pressure comprehensive waste-heat utilizing device that the present invention is provided has compact conformation, takes up an area small, operation steady
Calmly, the characteristics of reliability is high.It can comprehensively utilize the overbottom pressure residual heat resources of pipeline for gas, be by pressure energy and thermal energy
Electric energy, reduces the loss of high-pressure gas reducing pressure by regulating flow, while reducing the discharge of nitrogen oxides, realizes the dual work(of energy-conservation and emission reduction
Effect.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, under the premise without departing from the principles of the invention, can also make some improvements and modifications, and these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (10)
1. a kind of pipeline for gas overbottom pressure waste heat comprehensive utilization system, it is characterised in that including：Preheater, turbo-expander, combustion
Gas boiler and generator, the pre-heating intaking mouthful of the preheater are connected with high-pressure gas pipeline, the preheating outlet of the preheater
Mouth is connected with the air inlet of turbo-expander, and the gas outlet of the turbo-expander is connected with the air inlet of boiler, the boiler
Gas outlet be connected with the heating air inlet of preheater, the heating gas outlet of the preheater is connected with low-temperature flue gas pipeline；Institute
State turbo-expander to be connected with generator drive gear, the generator is electrically connected with electrical load.
2. pipeline for gas overbottom pressure waste heat comprehensive utilization system as claimed in claim 1, it is characterised in that the preheater is pre-
Turbine flow speed control valve is additionally provided between hot air inlet and high-pressure gas pipeline, the turbine flow speed control valve is for single choke valve or by many
Individual choke valve is in parallel.
3. pipeline for gas overbottom pressure waste heat comprehensive utilization system as claimed in claim 2, it is characterised in that the boiler air inlet
Mouth is also directly connected with high-pressure gas pipeline, and being provided with fuel gas pressure-regulating box between the boiler air inlet and high-pressure gas pipeline is carried out
Pressure regulation, the fuel gas pressure-regulating box is single channel, two-way or multi-channel parallel.
4. pipeline for gas overbottom pressure waste heat comprehensive utilization system as claimed in claim 3, it is characterised in that the preheater is
One group of preheater, the preheater group includes at least one-level preheater, and the turbo-expander is one group of turbo-expander, described
Turbine expansion unit includes at least one-level turbo-expander；The gas outlet of the upper level turbo-expander and next stage preheater
Pre-heating intaking mouthful connection；The boiler exit gas mouth is connected with preheaters at different levels heating air inlet respectively, and the preheaters at different levels add
Hot gas outlet is connected with low-temperature flue gas pipeline respectively.
5. pipeline for gas overbottom pressure waste heat comprehensive utilization system as claimed in claim 4, it is characterised in that the gas pressure regulating
Vortex-shedding meter, the gas flow that control system is fed back according to the vortex-shedding meter are additionally provided between case and boiler air inlet
Value, automatically adjusts the aperture of the turbine flow speed control valve and the fuel gas pressure-regulating box.
6. pipeline for gas overbottom pressure waste heat comprehensive utilization system as claimed in claim 5, it is characterised in that the preheater group
It is any one of shell-and-tube heat exchanger, double pipe heat exchanger or plate-fin heat exchanger or various combinations；The turbine
Expansion unit is multistage footpath axial-flow type expanding machine, or multiatage axial flow expanding machine or above two structure any combination.
7. pipeline for gas overbottom pressure waste heat comprehensive utilization system as claimed in claim 6, it is characterised in that the generator is
Explosion-proof power generator, the explosion-proof power generator is flame-proof type structure, or INCREASEDSAFETY structure, or positive pressure type structure.
8. pipeline for gas overbottom pressure waste heat comprehensive utilization system as claimed in claim 7, it is characterised in that the explosion-proof generating
It is additionally provided with decelerator between machine and Turbine expansion unit, the decelerator is multistage parallel axle construction, or multi-stage planetary gear
Structure, or collectively form overall gear modular construction with the turbo-expanders at different levels.
9. pipeline for gas overbottom pressure waste heat comprehensive utilization system as claimed in claim 8, it is characterised in that the turbine speed governing
Valve, preheater group, Turbine expansion unit, decelerator, explosion-proof power generator collectively forms turbine power generation unit sled block, the turbine hair
Group of motors sled block is stationary structure or moveable structure.
10. pipeline for gas overbottom pressure waste heat comprehensive utilization system as claimed in claim 9, it is characterised in that the preheater
Group includes one-level preheater and two grades of preheaters, and the Turbine expansion unit includes one-level turbo-expander and two grades of turbine expansions
Machine, the one-level preheater pre-heating intaking mouthful is connected with high-pressure gas pipeline, and the one-level preheater preheats gas outlet and one-level
Turbo-expander air inlet is connected, and the one-level turbo-expander gas outlet is connected with two grades of preheater pre-heating intakings mouthful, described
Two grades of preheaters preheating gas outlets are connected with two grades of turbo-expander air inlets, two grades of turbo-expander gas outlets and boiler
Air inlet is connected；Heating air inlet of the boiler exit gas mouthful respectively with one-level preheater and two grades of preheaters is connected, and described one
Level preheater and two grades of heating gas outlets of preheater are connected with low-temperature flue gas pipeline respectively.
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| CN201611270710.1A CN106703919B (en) | 2016-12-30 | 2016-12-30 | A kind of pipeline for gas overbottom pressure waste heat comprehensive utilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165682A (en) * | 2017-05-25 | 2017-09-15 | 华南理工大学 | A kind of combustion gas cogeneration technology optimizes system |
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| CN105927491A (en) * | 2016-06-22 | 2016-09-07 | 哈尔滨耦合动力工程技术中心有限公司 | Natural gas pressure-difference power generation and energy cascade utilization coupling system and application method thereof |
| CN206429277U (en) * | 2016-12-30 | 2017-08-22 | 中国科学院理化技术研究所 | A kind of pipeline for gas overbottom pressure waste heat comprehensive utilization system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107165682A (en) * | 2017-05-25 | 2017-09-15 | 华南理工大学 | A kind of combustion gas cogeneration technology optimizes system |
| CN107165682B (en) * | 2017-05-25 | 2023-12-01 | 华南理工大学 | Gas cogeneration process optimization system |
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