CN206191628U - Combustion engine fuel valve module - Google Patents
Combustion engine fuel valve module Download PDFInfo
- Publication number
- CN206191628U CN206191628U CN201621226126.1U CN201621226126U CN206191628U CN 206191628 U CN206191628 U CN 206191628U CN 201621226126 U CN201621226126 U CN 201621226126U CN 206191628 U CN206191628 U CN 206191628U
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- CN
- China
- Prior art keywords
- gas
- combustion engine
- branch road
- valve
- combustion
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- 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.)
- Expired - Fee Related
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model provides a combustion engine fuel valve module, including the gas shut -off valve, the air inlet is connected to gas shut -off valve one end, the other end connect respectively the main burner combustion -gas stream to branch road, nozzle combustion -gas stream on duty to branch road and the safe branch road of releasing, the branch road of releasing safely includes exhaust uptake, be equipped with gas detector in the exhaust uptake. Having shortened the activation time, having strengthened the security of combustion engine, reduced exhaust uptake's gas gathering, the combustion engine time of sweeping subtracts short back SFC operating duration and reduces, has practiced thrift the station service, simultaneously, the reduction of the activation time of unit, but unit quick start, multiple electricity, the benefit is showing, after the combustion engine swept the time reduction, exhaust -heat boiler inlet temperature than before will lack about 20 DEG C of left and right sides that descend, the heat dissipation who specifically reflects exhaust -heat boiler reduces, and the boiler intensification rate of rise is accelerated, and the heat soak time shortens, and the steam turbine will faster admission.
Description
Technical field
The utility model is related to combustion engine control field, more particularly, to a kind of combustion engine fuel valve module.
Background technology
In Combined Cycle Unit, combustion engine may be because leaking after stopping transport in gas supply pipeline, the meeting in whole exhaust uptake
Aggregation fuel gas, when the temperature in exhaust uptake reaches the burning-point of fuel gas, fuel gas may burn even quick-fried
It is fried, have a strong impact on the safety of unit equipment.In order to prevent this kind of situation from occurring, according to the universal standard, needed before unit starting igniting
Necessary air purging is carried out to exhaust uptake.Air purging amount is with 3 times of volumes of exhaust uptake as reference.
The typical startup program of M701F units is：Unit hair starts order by static frequency changer SFC (Static
Frequency Convertor) drive unit to rise rotating speed to 702rpm, the rotating speed is then maintained to combustion engine exhaust uptake purging 10
Reduction of speed igniting again after minute.It is estimated that combustion engine exhaust uptake volume is about 9000m3, the rotating speed of combustion engine 702rpm is purged for 10 minutes
The air mass flow of time is about 40000m3, purges nearly 4.5 times of multiplying power.
At present in the case where no data is monitored and controlled, to reach the state of abundant safety, purge time is often more long,
So as to electricity consumption when cannot reduce startup, the startup time is long so that generating dutation cannot also increase, and have impact on the performance of enterprises and wave
Electric energy is taken.
Utility model content
In view of this, the technical problems to be solved in the utility model is to provide the combustion engine combustion of a kind of safety, efficient energy-saving benefit
Material valve module.
In order to solve the above technical problems, the technical scheme that the utility model is provided is：A kind of combustion engine fuel valve module, including
Gas cut-off valve, described gas cut-off valve one end connects air inlet, and the other end connects main burner combustion gas and flows to branch road, on duty respectively
Nozzle combustion gas flows to branch road and safety relief branch road, and the safety relief branch road includes exhaust uptake, set in the exhaust uptake
There is combustible gas probe.
The safety relief branch road includes combustion gas bleeder valve, and combustion gas bleeder valve one end connects combustion gas and turns off by exhaust uptake
Valve, the other end leads to outside air.
The main burner combustion gas flows to branch road and is sequentially connected main gas pressure force control valve, main gas flow control valve and main combustion
Burn nozzle.
The main gas pressure force control valve is arranged in parallel two.
The nozzle combustion gas on duty flows to branch road and is sequentially connected gas pressure force control valve on duty, gas flow control valve on duty
With burner noz(zle) on duty.
Compared with prior art, the utility model has the following advantages that：
The utility model provides a kind of combustion engine fuel valve module, by setting combustible gas probe, shortens combustion engine and blows
Flyback time, is controlled so as to shorten the startup time, and flow to branch road by the three tunnel combustion gas to fuel valve module, enhances
The security of combustion engine, reduces the combustion gas aggregation of exhaust uptake, and combustion engine purge time shortens rear SFC run times and reduces, saves
Station service, with 600 measuring and calculating of the year number of starts, saves 50,000 yuan of station service in year；Meanwhile, the startup time reduction of unit, unit can
It is quick to start, generate electricity more, remarkable benefit is substantially calculated more by generate electricity 5 minutes of startup every time, and can generate electricity in year 17000000 degree of electricity more；
After the reduction of combustion engine purge time, waste heat boiler inlet temperature is few than before to decline about 20 DEG C or so, so that the radiating of waste heat boiler
Loss is reduced, and the boiler heating rate of rise is accelerated, and warm-up period shortens, and steam turbine will more F.F. vapour.
Brief description of the drawings
Fig. 1 is the utility model fuel valve modular structure schematic diagram；
Wherein, 1 is gas cut-off valve, and 2 is combustion gas bleeder valve, and 3,4 is main gas pressure force control valve, and 5 is main gas flow
Control valve, 6 is main burner noz(zle), and 7 is gas pressure force control valve on duty, and 8 is gas flow control valve on duty, and 9 is burning on duty
Nozzle.
Specific embodiment
For the ease of it will be appreciated by those skilled in the art that entering to advance to the utility model below in conjunction with accompanying drawing and embodiment
One step is described in detail.
Embodiment 1
A kind of combustion engine fuel valve module, is improved based on existing combustion engine system, as shown in figure 1, fuel valve module includes
The gas cut-off valve of air inlet is connected, three tunnel combustion gas is formed separately behind gas cut-off valve and is flowed to branch road, respectively main burner combustion
Air-flow flows to branch road and safety relief branch road to branch road, nozzle combustion gas on duty, and main burner combustion gas flows to branch road and is sequentially connected main combustion
Air pressure force control valve, main gas flow control valve and main burning nozzle, wherein, main gas pressure force control valve is arranged in parallel two,
Ensure the reliability of gaseous-pressure control during production run；The nozzle combustion gas on duty flows to branch road and is sequentially connected gas pressure on duty
Force control valve, gas flow control valve on duty and burner noz(zle) on duty；The safety relief branch road includes exhaust uptake and combustion gas
Bleeder valve, combustion gas bleeder valve one end connects gas cut-off valve by exhaust uptake, and the other end leads to outside air, the exhaust cigarette
Combustible gas probe is provided with road.
When combustion engine is run, gas cut-off valve is opened, and combustion gas bleeder valve is closed, and main burner combustion gas flows to branch road according to production need
Gas output is adjusted, nozzle combustion gas on duty flows to branch road and keeps it turned on, it is to avoid flame puts out when main fuel spray nozzle change is smaller
Go out.Gas cut-off valve is closed after combustion engine is stopped transport, and combustion gas bleeder valve is opened, and is gathered in discharge flue so as to avoid combustion gas,
In gas cut-off valve occurs during leakage, can be eliminated safe hidden trouble by allowing its bleeder valve to empty.
Combustible gas probe is during unit starting and during unit outage, in real time to flammable in exhaust uptake
Gas concentration is detected, and when detecting the combustable gas concentration in exhaust uptake and reaching 25%, then stops the startup journey of unit
Sequence, alert, prompting is detected and purged to unit.
The combustion engine energy-saving control method that a kind of combustion engine fuel valve module described in the present embodiment is applied, by exhaust cigarette
The real-time monitoring of combustable gas concentration and the switch of gas valve are controlled in road, the state and exhaust uptake of intelligent monitoring combustion engine
Security situation, rationally shorten purge time, save and start electricity consumption, unit quickly starts, and increased the unit generation time, increases
Benefit, meanwhile, after the reduction of combustion engine purge time, waste heat boiler inlet temperature few decline about 20 DEG C than before, so as to reduce
The radiation loss of waste heat boiler, boiler heating career speed is accelerated, and warm-up period shortens, and steam turbine will faster air inlet, production effect
Rate is higher.
This implementation combustion engine energy-saving control method, specifically includes following steps：
S1. before combustion engine igniting, unit has detected whether flame and chaser signal, if nothing, starts generation purging signal, enters
Enter step S2, if so, then entering step S4；
S2. unit sends purging request, and combustion engine starts purging after 300 seconds, exhaust cigarette is detected by combustible gas probe
Combustable gas concentration value in road, if combustable gas concentration value exceeds 25%, unit starting condition is unsatisfactory for, locking unit starting, hair
Go out warning message, then into step S3, if combustable gas concentration value is without departing from 25%, startup program can be completed；
S3. purge 300 seconds again, repeat this step, untill gas concentration is less than 25%, complete startup program；
S4. startup program pause, alarm is again started up, and purge time will will be set to first automatically after inspection is errorless
Section is purged within 550 seconds, to ensure that the combustion gas for accumulating thoroughly is removed totally, by combustible gas probe after unit starting
Combustable gas concentration value in detection exhaust uptake, if combustable gas concentration value exceeds first threshold, into step S3, if flammable
Gas concentration value can then complete startup program without departing from first threshold.
Wherein, before combustible gas probe sends alarm signal, also to combustion engine blast pipe and combustion engine bag coal gas detection equipment
Ruuning situation is detected.If normal operation, warning message display discharge duct gas concentration is exceeded, if operation exception,
Warning message shows coal gas detection unit exception.
When combustion engine brings into operation, gas cut-off valve is opened, and combustion gas bleeder valve is closed, and main burner combustion gas flows to branch road according to life
Product needs to be adjusted gas output, and nozzle combustion gas on duty flows to branch road and keeps it turned on, it is to avoid fire when main fuel spray nozzle change is smaller
Flame extinguishes.Gas cut-off valve is closed after combustion engine is stopped transport, and combustion gas bleeder valve is opened, and discharge flue is gathered in so as to avoid combustion gas
It is interior, in gas cut-off valve occurs during leakage, can be eliminated safe hidden trouble by allowing its bleeder valve to empty.
It is above wherein specific implementation of the present utility model, therefore its description is more specific and detailed, but can not be
And it is interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the concept of the premise utility, various modifications and improvements can be made, these obviously replace shape
Formula belongs to protection domain of the present utility model.
Claims (5)
1. a kind of combustion engine fuel valve module, it is characterised in that：Including gas cut-off valve, described gas cut-off valve one end connects air inlet
Mouthful, the other end connects main burner combustion gas and flows to branch road, nozzle combustion gas on duty and flows to branch road and safety relief branch road, the peace respectively
Full branch road of releasing includes exhaust uptake, and combustible gas probe is provided with the exhaust uptake.
2. combustion engine fuel valve module according to claim 1, it is characterised in that：The safety relief branch road is let out including combustion gas
Valve is put, combustion gas bleeder valve one end connects gas cut-off valve by exhaust uptake, and the other end leads to outside air.
3. combustion engine fuel valve module according to claim 1, it is characterised in that：The main burner combustion gas flows to branch road successively
Connect main gas pressure force control valve, main gas flow control valve and main burning nozzle.
4. combustion engine fuel valve module according to claim 3, it is characterised in that：The main gas pressure force control valve parallel connection sets
Put two.
5. combustion engine fuel valve module according to claim 1, it is characterised in that：The nozzle combustion gas on duty flow to branch road according to
Secondary connection gaseous-pressure control valve on duty, gas flow control valve on duty and burner noz(zle) on duty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621226126.1U CN206191628U (en) | 2016-11-15 | 2016-11-15 | Combustion engine fuel valve module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621226126.1U CN206191628U (en) | 2016-11-15 | 2016-11-15 | Combustion engine fuel valve module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206191628U true CN206191628U (en) | 2017-05-24 |
Family
ID=58725602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621226126.1U Expired - Fee Related CN206191628U (en) | 2016-11-15 | 2016-11-15 | Combustion engine fuel valve module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206191628U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439894A (en) * | 2016-11-15 | 2017-02-22 | 广东惠州天然气发电有限公司 | Gas turbine and start energy saving control method thereof |
| US20220282835A1 (en) * | 2020-06-01 | 2022-09-08 | Daniel McNicholas | Safe Transportation System Operations Including Fueling, Transfer and Charging |
-
2016
- 2016-11-15 CN CN201621226126.1U patent/CN206191628U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439894A (en) * | 2016-11-15 | 2017-02-22 | 广东惠州天然气发电有限公司 | Gas turbine and start energy saving control method thereof |
| CN106439894B (en) * | 2016-11-15 | 2024-07-09 | 广东惠州天然气发电有限公司 | Combustion engine and starting energy-saving control method thereof |
| US20220282835A1 (en) * | 2020-06-01 | 2022-09-08 | Daniel McNicholas | Safe Transportation System Operations Including Fueling, Transfer and Charging |
| US11703186B2 (en) * | 2020-06-01 | 2023-07-18 | Daniel McNicholas | Safe transportation system operations including fueling, transfer and charging |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20171115 |