CN206419973U - A kind of GTCC power plant igniter gas system - Google Patents
A kind of GTCC power plant igniter gas system Download PDFInfo
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- CN206419973U CN206419973U CN201621425852.6U CN201621425852U CN206419973U CN 206419973 U CN206419973 U CN 206419973U CN 201621425852 U CN201621425852 U CN 201621425852U CN 206419973 U CN206419973 U CN 206419973U
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- igniter gas
- air accumulator
- hot
- igniter
- reheater
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Abstract
The utility model discloses a kind of GTCC power plant igniter gas system, including igniting air accumulator, igniter gas is stored in the igniting air accumulator, the igniting air accumulator is connected with hot-water heater, the liquid medium that the hot-water heater will be equipped with is heated to after design temperature get to the liquid medium after heating in igniting air accumulator by the first booster pump, the igniter gas transferred heat in igniting air accumulator, igniter gas is heated to saturation temperature, the igniter gas for being heated to saturation temperature is transmitted to reheater, the state for carrying out being again heated to igniter gas in reheater is superheated vapor, transmit to combustion engine and utilize by the igniter gas of reheater.The utility model heats liquid medium using hot-water heater, transferred heat to by heat exchange in igniting air accumulator and igniter gas is heated to saturation temperature, the igniter gas of saturated mode is delivered to reheater and is heated to be superheated vapor afterwards, meets combustion engine to the temperature of igniter gas and the requirement of pressure.
Description
Technical field
The utility model is related to igniter gas system, and in particular to a kind of GTCC power plant igniter gas system.
Background technology
GTCC power plant for using double fuel, general natural gas is main fuel, and fuel oil is guarantee fuel.When using fuel oil
Whether need igniter gas relevant with the type of gas turbine, some types do not need the direct electric ignition of igniter gas, some types are needed
Want igniter gas.Domestic GTCC power plant typically only burns natural gas not oil firing, therefore without igniter gas.
When using fuel oil, some gas turbine producers require to need to be lighted fuel oil with igniter gas, natural gas it is main
Composition is methane, and gas turbine producer requires that igniter gas can not use natural gas, can only use pure propane, pure butane or propane and butane
Mixture；Pressure requirements to igniter gas are 1.6Mpa (recommended pressure), and temperature is no more than 120 DEG C, and igniter gas can not contain
Liquid medium.
The technology for fuel oil being lighted with igniter gas is not related in current technology, without corresponding igniter gas system yet
Occur.Therefore, a kind of brand-new GTCC power plant igniter gas system and corresponding ignition method are needed badly.
Utility model content
To solve the deficiency that prior art is present, one of the purpose of this utility model is to disclose a kind of GTCC power plant igniting
Gas system, can be realized by the framework of the system and be lighted fuel oil using igniter gas, realize continuous, reliable offer combustion gas wheel
Igniter gas required by machine.
It is of the present utility model another object is that disclose a kind of ignition method of GTCC power plant igniter gas system, utilize the party
Method, which can be realized, fast and accurately lights fuel oil.
To achieve the above object, concrete scheme of the present utility model is as follows：
Igniter gas is stored in a kind of GTCC power plant igniter gas system, including igniting air accumulator, the igniting air accumulator, institute
State igniting air accumulator with hot-water heater to be connected, the liquid medium that the hot-water heater will be equipped with is heated to lead to after design temperature
Cross the first booster pump to get to the liquid medium after heating in igniting air accumulator, the igniting transferred heat in igniting air accumulator
Gas, saturation temperature is heated to by igniter gas, and the igniter gas for being heated to saturation temperature is transmitted to reheater, is carried out again in reheater
It is secondary to be heated to superheated vapor, transmit to combustion engine and utilize by the igniter gas of reheater.
Further, gas phase interface and liquid phase interface are provided with the igniting air accumulator, respectively with transporting pure propane
The gas phase interface of tank car is connected with liquid phase interface, and the igniter gas in tank car is transported in igniting air accumulator.
Further, the liquid medium being equipped with the hot-water heater is demineralized water, and the hot-water heater bottom is set
Electric heater is equipped with, for demineralized water to be heated into design temperature.
Further, the igniting built in gas tank has heat exchange coil, and first booster pump is got in igniting air accumulator
Heating after liquid medium exchanged heat by the heat exchange coil and igniter gas, igniter gas temperature is heated to saturation temperature.
Further, the hot water after being exchanged heat in the igniting air accumulator by the heat exchange coil and igniter gas is through first time
Waterpipe returns to hot-water heater.
Further, a kind of above-mentioned GTCC power plant igniter gas system also includes the second booster pump, and second booster pump is
Recirculation conduit is equipped with after the stand-by pump of first booster pump, first booster pump, the second booster pump, hot water heating is connected to
Device, the flow for adjusting pump prevents from causing during low discharge the vibrations of pump.
Further, the igniting air accumulator is connected with reheater by igniter gas conveyance conduit, the igniter gas conveying
Check-valves, stop valve and ball valve are provided with pipeline.
Further, the reheater is additionally provided with a bypass, and one end of the bypass is connected with the input of reheater,
The other end is connected with the output end of reheater, and normally-closed ball valve is additionally provided with the bypass duct.
Further, the heating medium hot water of the reheater comes from hot-water heater, and the hot water of hot-water heater is through the
The water being transported to after the pressurization of three booster pumps after being exchanged heat in reheater, reheater returns to hot water heating by the second water return pipeline and thought highly of
It is new to be heated.
Further, recirculation conduit is set to be connected to hot-water heater after the 3rd booster pump.
Further, it is described igniting air accumulator on set two safety valves, for light a fire air accumulator superpressure when release device
Pressure, the safety of protection equipment；The igniting air accumulator is provided with the pipeline that diffuses containing normally-closed ball valve and normally closed cut-off valve, inspection
Igniter gas when repairing in opening normally-closed ball valve and normally closed cut-off valve, tank is guided to concentration exhaust stack by this pipeline and diffused.
Further, the pipeline containing safety valve, normally-closed ball valve and normally closed cut-off valve is set on the pipeline after the reheater,
The pipeline, which is connected to, diffuses pipeline.
Further, be provided with first water return pipeline, the second water return pipeline and recirculation conduit stop valve and
Check-valves.
A kind of ignition method of GTCC power plant igniter gas system, comprises the following steps：
Igniter gas is transported in igniting air accumulator；
Demineralized water is housed, hot-water heater bottom is provided with electric heater and demineralized water is heated into setting in hot-water heater
Temperature, is then got to hot water in igniting air accumulator with the first booster pump；
Igniting built in gas tank has heat exchange coil, and hot water is exchanged heat by the coil pipe and igniter gas, igniter gas temperature is heated
To saturation temperature, the hot water after heat exchange returns to hot-water heater through water return pipeline；
Saturation temperature is heated in igniting air accumulator, pressure reaches that the saturation igniter gas of setting pressure is conveyed through igniter gas
Pipeline enters reheater, and the heating medium hot water of reheater comes from hot-water heater, and hot water is conveyed after being pressurizeed through the 3rd booster pump
Hot-water heater is returned to reheater, after heat exchange to be heated again；
Saturation igniter gas is heated to the superheated vapor of the setting degree of superheat in reheater, is overheated after reheated device heating
Igniter gas is transported to combustion engine.
The beneficial effects of the utility model：
1st, the utility model heats liquid medium using hot-water heater, and igniting gas storage is transferred heat to by heat exchange
Igniter gas is heated to saturation temperature in tank, the requirement of igniting atmospheric pressure is met.
2nd, the utility model then makes igniter gas have one using reheating of the reheater realization to the igniter gas of saturation temperature
The fixed degree of superheat and liquid is entirely free of, meets the requirement of the temperature and security of igniter gas.
3rd, the utility model igniting air accumulator and reheater after pipeline on be provided with containing safety valve, normally-closed ball valve and often
Close stop valve pipeline, wherein, safety valve be used for light a fire air accumulator superpressure when release device pressure, the safety of protection equipment；Often
The pipeline effect of diffusing for closing ball valve and normally closed cut-off valve is that the igniting in normally-closed ball valve and normally closed cut-off valve, tank is opened during maintenance
Gas is guided to concentration exhaust stack by this pipeline and diffused.
4th, standby booster pump is provided with the water supply line between the utility model hot-water heater and igniting air accumulator, carried
High reliability of the hot-water heater with igniting air accumulator heat exchange.
5th, increase pump of the present utility model is equipped with recirculation conduit, and the flow for adjusting pump prevents from drawing during low discharge
Play the vibrations of pump.
Brief description of the drawings
Fig. 1 is GTCC power plant igniter gas system schematic of the present utility model；
In figure, 1, hot-water heater, 2, electric heater, the 3, first water return pipeline, the 4, first recirculation conduit, 5, first supplies
Waterpipe, the 6, second water return pipeline, the 7, second recirculation conduit, the 8, second water supply line, the 9, first filter screen, the 10, second filter screen,
11st, the 3rd filter screen, the 12, first booster pump, the 13, second booster pump, the 14, the 3rd booster pump, 15, igniting air accumulator, 16, propane it is defeated
Send pipeline, 17, gas phase interface, 18, liquid phase interface, 19, reheater, 20, bypass, 21, to concentrating exhaust stack, 22, to combustion engine.
Embodiment：
The utility model is described in detail below in conjunction with the accompanying drawings：
For same medium, saturated-steam temperature and saturated vapour pressure are corresponding relations, i.e., required pressure will
Ask higher, corresponding gas temperature will also be lifted.Therefore, igniting air accumulator sets heating devices heat liquid fuel to improve liquid
State fuel temperature, after heating a period of time, liquid evaporation turns into saturated vapor, and corresponding saturated gas temperature reaches corresponding saturation
Pressure, you can meet combustion engine gas igniter pressure requirement.
For pure propane, corresponding saturation temperature is 48 DEG C during pressure 1.6Mpa, that is, needs pure propane being heated to 48 DEG C
Requirement of the combustion engine to atmospheric pressure of lighting a fire can be met.
For pure butane, corresponding saturation temperature is 107 DEG C during pressure 1.6Mpa, that is, needs pure butane being heated to 107
It DEG C can meet requirement of the combustion engine to atmospheric pressure of lighting a fire.
For propane and the mixture of butane, according to the difference of mixed proportion, reach and be heated to needed for 1.6Mpa pressure
Temperature between 48 DEG C~107 DEG C.
Igniter gas selects what the mixture of pure propane or propane and butane also can be achieved on, but come relative to pure butane
Say, the temperature that need to be heated is higher, security, economy are not so good as pure propane, therefore the application is used as igniter gas from pure propane.
As shown in figure 1, a kind of GTCC power plant igniter gas system, it includes an igniting air accumulator 15, a hot water heating
Device 1 (includes electric heater 2), a reheater 19, three booster pumps (be respectively the first booster pump 12, the second booster pump 13,
3rd booster pump 14), three filter screen (being respectively the first filter screen 9, the second filter screen 10, the 3rd filter screen 11) (explanations：Effect is filtering
Fall the impurity in water, particularly initial operating stage, due to the impurity that equipment, pipeline are inevitably produced in work progress,
Though can clean but also not washed clean clearly to pipe-line equipment before operation, therefore filter screen need to be added, just do not had after operation a period of time
Too many impurity), the pipeline of some valves and connection equipment and valve.
Gas phase interface and liquid phase interface are provided with igniting air accumulator 15, and gas phase interface 17 and liquid phase interface 18 are respectively with third
The gas phase interface and liquid of alkane tank car, by the pure delivery of propane in tank car to igniting air accumulator 15.It is equipped with and removes in hot-water heater 1
Salt solution (explanation：Demineralized water is best most cheap heat transferring medium, and other media are not considered), the bottom of hot-water heater 1 is provided with
Demineralized water is heated to 90 DEG C or so by electric heater 2, is then got to hot water in igniting air accumulator 15 with the first booster pump 12, point
Heat exchange coil is provided with fiery air accumulator 15, hot water is exchanged heat by the coil pipe and pure propane, and propane temperature is heated into 48 degree, heat exchange
Hot water afterwards returns to hot-water heater 1 through the first water return pipeline 3.Second booster pump 13 is stand-by pump, the first booster pump 12, second
The first recirculation conduit 4 is equipped with after booster pump 13, the flow for adjusting pump prevents from causing during low discharge the vibrations of pump.
48 DEG C are heated in igniting air accumulator 15, pressure reaches 1.6Mpa saturation propane vapor through delivery of propane pipeline
16 enter reheater 19, and saturation propane vapor is heated to the superheated vapor of 10 DEG C of degrees of superheat, i.e. temperature in reheater 19
Reach 58 DEG C.The propane that combustion engine producer is not allow for liquid enters to combustion engine 22, therefore propane vapor need to be heated to 10 DEG C
The degree of superheat.The reheated temperature after heating of device 19 is 58 DEG C, and pressure is that igniter gas is conveyed for 1.6Mpa overheat propane steam
To combustion engine 22.Reheater 19 is provided with a bypass 20.
The heating medium hot water of reheater 19 is also from hot-water heater 1, and hot water is defeated after being pressurizeed through the 3rd booster pump 14
Reheater 19 is sent to, return to hot-water heater 1 by the second water return pipeline 6 after heat exchange is heated again.3rd booster pump 14 (is said
It is bright：This set system of igniter gas is simply just used when combustion engine is lighted a fire, usually without for reduction construction costs, booster pump herein is not
Consider further that stand-by pump.Certainly, if setting stand-by pump whole system reliability can be higher) do not set and set second again after stand-by pump, pump
Circulating line 7.
The first water supply line 5 and second where before first booster pump 12, the second booster pump 13, the 3rd booster pump 14 supplies water
Pipeline 8 is provided with first of place after filter screen and stop valve, the first booster pump 12, the second booster pump 13, the 3rd booster pump 14
Check-valves and stop valve are set on the water supply line 8 of water supply line 5 and second.
Light a fire air accumulator 15 on set two safety valves, for light a fire 15 superpressure of air accumulator when release device pressure, protect
Protect the safety of equipment；Be provided with simultaneously and diffuse pipeline containing normally-closed ball valve and normally closed cut-off valve, opened during maintenance normally-closed ball valve and
Propane in normally closed cut-off valve, tank is guided to concentration exhaust stack 21 by this pipeline and diffused.It is same on pipeline after reheater 19
Pipeline containing safety valve, normally-closed ball valve and normally closed cut-off valve is set, and effect is ibid.GTCC power plant can be to the temperature of igniter gas, pressure
Power and composition are made demands, and this igniter gas system designs to realize the requirement of GTCC power plant.Great advantage is
The igniter gas in igniting air accumulator is heated with hot water, the temperature of such igniter gas also will not among control under accident conditions
More than 100 degree of the boiling point of water, producer requires highest no more than 120 degree, therefore can ensure safety.If using electrical heating
Device is directly heated can be dangerous more than 120 degree under igniter gas, accident conditions.
It is not new to this practicality although above-mentioned embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deform still in protection model of the present utility model
Within enclosing.
Claims (10)
1. a kind of GTCC power plant igniter gas system, it is characterized in that, including igniting air accumulator, the interior storage of the igniting air accumulator is a little
Internal heat, the igniting air accumulator is connected with hot-water heater, and the liquid medium that the hot-water heater will be equipped with is heated to setting
The liquid medium after heating is got in igniting air accumulator by the first booster pump after temperature, igniting air accumulator is transferred heat to
Interior igniter gas, saturation temperature is heated to by igniter gas, and the igniter gas for being heated to saturation temperature is transmitted to reheater, in reheater
The middle state for carrying out being again heated to igniter gas is superheated vapor, transmits to combustion engine and utilizes by the igniter gas of reheater.
2. a kind of GTCC power plant igniter gas system as claimed in claim 1, it is characterized in that, it is provided with the igniting air accumulator
Gas phase interface and liquid phase interface, respectively the gas phase interface of the tank car with transporting pure propane be connected with liquid phase interface, by tank car
Igniter gas is transported in igniting air accumulator.
3. a kind of GTCC power plant igniter gas system as claimed in claim 1, it is characterized in that, it is equipped with the hot-water heater
Liquid medium is demineralized water, and the hot-water heater bottom is provided with electric heater, for demineralized water to be heated into design temperature.
4. a kind of GTCC power plant igniter gas system as claimed in claim 1, it is characterized in that, the igniting built in gas tank is changed
Hot coil, the liquid medium that first booster pump is got to after the heating in igniting air accumulator passes through the heat exchange coil and igniter gas
Heat exchange, saturation temperature is heated to by igniter gas temperature.
5. a kind of GTCC power plant igniter gas system as claimed in claim 4, it is characterized in that, pass through in the igniting air accumulator
Hot water after the heat exchange coil exchanges heat with igniter gas returns to hot-water heater through the first water return pipeline.
6. a kind of GTCC power plant igniter gas system as claimed in claim 5, it is characterized in that, the GTCC power plant igniter gas system
Also include the second booster pump, second booster pump is the stand-by pump of the first booster pump, first booster pump, the second booster pump
After be equipped with recirculation conduit, be connected to hot-water heater, the flow for adjusting pump prevents from causing during low discharge the shake of pump
It is dynamic.
7. a kind of GTCC power plant igniter gas system as claimed in claim 1, it is characterized in that, the igniting air accumulator and reheater
It is connected by igniter gas conveyance conduit, check-valves, stop valve and ball valve is provided with the igniter gas conveyance conduit；
The reheater is additionally provided with a bypass, and one end of the bypass is connected with the input of reheater, the other end and reheating
The output end of device is connected, and normally-closed ball valve is additionally provided with the bypass duct.
8. a kind of GTCC power plant igniter gas system as claimed in claim 6, it is characterized in that, the heating medium heat of the reheater
Water comes from hot-water heater, and the hot water of hot-water heater is transported in reheater, reheater after being pressurizeed through the 3rd booster pump and exchanged heat
Water afterwards returns to hot-water heater by the second water return pipeline and is heated again；
Recirculation conduit is set to be connected to hot-water heater after 3rd booster pump.
9. a kind of GTCC power plant igniter gas system as claimed in claim 8, it is characterized in that, set two on the igniting air accumulator
Individual safety valve, for light a fire air accumulator superpressure when release device pressure, the safety of protection equipment；The igniting air accumulator is set
There is the igniting diffused pipeline, open in normally-closed ball valve and normally closed cut-off valve, tank during maintenance containing normally-closed ball valve and normally closed cut-off valve
Gas is guided to concentration exhaust stack by this pipeline and diffused.
10. a kind of GTCC power plant igniter gas system as claimed in claim 8, it is characterized in that, on the pipeline after the reheater
Pipeline containing safety valve, normally-closed ball valve and normally closed cut-off valve is set, and the pipeline, which is connected to, diffuses pipeline；
Stop valve and check-valves are provided with first water return pipeline, the second water return pipeline and recirculation conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425852.6U CN206419973U (en) | 2016-12-23 | 2016-12-23 | A kind of GTCC power plant igniter gas system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621425852.6U CN206419973U (en) | 2016-12-23 | 2016-12-23 | A kind of GTCC power plant igniter gas system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206419973U true CN206419973U (en) | 2017-08-18 |
Family
ID=59575860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621425852.6U Expired - Fee Related CN206419973U (en) | 2016-12-23 | 2016-12-23 | A kind of GTCC power plant igniter gas system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206419973U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524214A (en) * | 2016-12-23 | 2017-03-22 | 山东电力工程咨询院有限公司 | Ignition gas system of gas turbine power plant and ignition method of ignition gas system |
-
2016
- 2016-12-23 CN CN201621425852.6U patent/CN206419973U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106524214A (en) * | 2016-12-23 | 2017-03-22 | 山东电力工程咨询院有限公司 | Ignition gas system of gas turbine power plant and ignition method of ignition gas system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170818 Termination date: 20181223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |