CN207454046U - The gas heating system of F grades of fuel engine power generation units under feed pump power frequency operation - Google Patents
The gas heating system of F grades of fuel engine power generation units under feed pump power frequency operation Download PDFInfo
- Publication number
- CN207454046U CN207454046U CN201721334182.1U CN201721334182U CN207454046U CN 207454046 U CN207454046 U CN 207454046U CN 201721334182 U CN201721334182 U CN 201721334182U CN 207454046 U CN207454046 U CN 207454046U
- Authority
- CN
- China
- Prior art keywords
- hot water
- feed pump
- valve
- combustion heater
- frequency operation
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model discloses a kind of gas heating systems of F grades of fuel engine power generation units under feed pump power frequency operation, solve the problems, such as the gas heating system superpressure of F grade fuel engine power generation unit of the feed pump in power frequency operation.Including feed pump（1）, press economizer in waste heat boiler（2）, middle pressure drum（4）And combustion heater（9）, feed pump（1）Centre tap and waste heat boiler in press economizer（2）The input mouth of a river connection, in hot water delivery pipe（11）On be provided with the first electronic shut-off valve（3）, in the first electronic shut-off valve（3）Preceding hot water delivery pipe（11）On be provided with combustion heater（9）Hot water introduce pipe（12）, hot water, which introduces, manages（12）The other end and combustion heater（9）Hot water input port connection, hot water introduce manage（12）On be in series with differential pressure transmitter（5）.Fuel heater can normal operation under feed pump power frequency operation for the utility model.
Description
Technical field
The utility model is related to a kind of gas heating system of F grades of fuel engine power generation unit, more particularly to a kind of feed pump exists
The gas heating system of F grade fuel engine power generation units under power frequency operation operating mode.
Background technology
Every combustion engine in the power plant of F grades of gas-steam combined cycle sets is employed, is generally both provided with a set of combustion gas
Heating system, the system are by the water of middle pressure economizer exit, as heat medium, are introduced into fuel heater, pass through water
Gas exchanges heat, and the temperature that the fuel for supplying combustion engine is heated to need, the fuel after heating resupplies fuel engine power generation, the combustion after preheating
Material contributes to the burning of fuel and the raising of average endothermic temperature, is finally reached the purpose for improving unit efficiency.Fuel heater
There is stringent limitation to the pressure of the heating water of introducing, it is 8MPa to allow maximum hydraulic pressure pressure value, after the limiting value, fuel
Heater cannot work normally.And the water inlet of middle pressure economizer is accessed from the centre tap of unit feed pump, works as unit
During feed pump power frequency operation, feed pump centre tap pressure increase, hence it is evident that more than the limit of the water inlet lateral pressure of fuel heater
It is required that；In order to solve this problem, the prior art is that one relief valve of access is set on the influent side water pipe of fuel heater,
Intake pressure is reduced, this pressure releasing method, it occur frequently that after pressure release, the phenomenon that fuel heater is still within superpressure situation,
Fuel heater is caused to be not normally functioning, once and fuel heater failure stop transport, generating set fuel gas temperature can be close to ring
Border temperature is required according to combustion engine manufacturer, and combustion engine will be unable to normal load carrying under such operating mode, and can only stop transport combustion engine, into
Row fuel heater repairs, and ultimately resulting in cannot occur the phenomenon that normal heat supply.In addition, in feed pump power frequency operation, pressure release
Valve is always in opening, and a large amount of middle pressure feedwater will be caused to be drained off, not only cause the waste of working medium and energy, for a long time
The phenomenon that also unit moisturizing being caused difficult, occurs.
The content of the invention
The utility model provides a kind of gas heating system of F grades of fuel engine power generation units under feed pump power frequency operation, solution
Determined F grade fuel engine power generation unit of the feed pump in power frequency operation gas heating system superpressure the technical issues of.
The gas heating system of F grades of fuel engine power generation units under a kind of feed pump power frequency operation, including feed pump, waste heat boiler
Middle pressure economizer, middle pressure drum and combustion heater, fuel gas inlet and the gas pressure regulating station of combustion heater are connected together, and fire
The gas outlet of hot-air heater is connected together with combustion engine, and the output terminal of feed pump is connected with turbine high-pressure boiler circuit one
It rises, in the centre tap and waste heat boiler of feed pump the input mouth of a river of economizer is pressed to be connected together, pressure saves coal in waste heat boiler
The output mouth of a river of device is connected together by hot water delivery pipe and middle pressure drum, and the first electronic pass is provided on hot water delivery pipe
Break valve, and the hot water that combustion heater is provided on the hot water delivery pipe before the first electronic shut-off valve introduces pipe, and hot water introduces pipe
The other end and the hot water input port of combustion heater be connected together, the water return outlet of combustion heater passes through return pipe and condensation
Waterpipe connects, and is introduced in hot water on pipe and is in series with differential pressure transmitter.
It is introduced in hot water on pipe and is respectively arranged with safety relief valve and the second electronic shut-off valve, the is provided on return pipe
Three electronic shut-off valves.
Under feed pump power frequency operation, middle pressure feed pressure can be controlled in fuel heater allowed band the utility model
Interior, fuel heater can normal operation.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
Specific embodiment
The utility model is described in detail below in conjunction with the accompanying drawings：
The gas heating system of F grades of fuel engine power generation units under a kind of feed pump power frequency operation, including feed pump 1, waste heat pot
Economizer 2, middle pressure drum 4 and combustion heater 9, the fuel gas inlet 14 of combustion heater 9 is pressed to be connected with gas pressure regulating station in stove
Together, the gas outlet 15 of combustion heater 9 is connected together with combustion engine, output terminal and the turbine high-pressure vapour of feed pump 1
Water system 16 is connected together, and the centre tap of feed pump 1 is with pressing the input mouth of a river of economizer 2 to connect one in waste heat boiler
It rises, the output mouth of a river of economizer 2 is pressed to be connected together by hot water delivery pipe 11 and middle pressure drum 4 in waste heat boiler, in hot water
The first electronic shut-off valve 3 is provided on efferent duct 11, combustion gas is provided on the hot water delivery pipe 11 before the first electronic shut-off valve 3
The hot water of heater 9 introduces pipe 12, and the other end that hot water introduces pipe 12 is connected with the hot water input port of combustion heater 9 one
It rises, the water return outlet of combustion heater 9 is connected by return pipe 13 with condensing water conduit, is introduced in hot water on pipe 12 and is in series with differential pressure
Transmitter 5.
It is introduced in hot water on pipe 12 and is respectively arranged with 8 and second pneumatic shut-off valve 7 of safety relief valve, set on return pipe 13
It is equipped with the 3rd pneumatic shut-off valve 10.
During 1 converting operation of feed pump, 6 aperture of adjusting pneumatic control valve in differential pressure transmitter 5 so that combustion heater 9
The feedwater reducing pressure by regulating flow of water inlet required to fuel heater 9 is met.When in 1 power frequency of feed pump connection Qi Houshi, waste heat boiler
Press the feed pressure increase of economizer 2, reduce the aperture of pneumatic control valve 6 immediately, be lowered into fuel heater 9 to hydraulic pressure
Power ensures that downstream pressure is significantly less than fuel heater water side and allows pressure.The middle pressure feedwater flow of combustion gas is heated by fuel
The 3rd pneumatic shut-off valve 10 in 9 exit of heater is adjusted, so as to which fuel gas temperature meets the requirements.Differential pressure transmitter 9 is pneumatically being adjusted
Save valve 6 after gather pressure signal after, for control the aperture of pneumatic control valve door 6 with ensure feed pressure be less than combustion heater
Allow pressure, pneumatic control valve 6 can also be manually operated in situ by handwheel.
Claims (2)
1. a kind of gas heating system of F grades of fuel engine power generation units under feed pump power frequency operation, including feed pump（1）, waste heat pot
Economizer is pressed in stove（2）, middle pressure drum（4）And combustion heater（9）, combustion heater（9）Fuel gas inlet（14）With combustion gas
Voltage regulating station is connected together, combustion heater（9）Gas outlet（15）It is connected together with combustion engine, feed pump（1）Output
End and turbine high-pressure boiler circuit（16）It is connected together, feed pump（1）Centre tap and waste heat boiler in press economizer
（2）The input mouth of a river be connected together, economizer is pressed in waste heat boiler（2）The output mouth of a river pass through hot water delivery pipe（11）With in
Press drum（4）It is connected together, in hot water delivery pipe（11）On be provided with the first electronic shut-off valve（3）, which is characterized in that
One electronic shut-off valve（3）Preceding hot water delivery pipe（11）On be provided with combustion heater（9）Hot water introduce pipe（12）, hot water draws
Enter pipe（12）The other end and combustion heater（9）Hot water input port be connected together, combustion heater（9）Water return outlet lead to
Cross return pipe（13）It is connected with condensing water conduit, introduces and manage in hot water（12）On be in series with differential pressure transmitter（5）.
2. the gas heating system of F grades of fuel engine power generation units under a kind of feed pump power frequency operation according to claim 1,
It is characterized in that, introduces and manage in hot water（12）On be respectively arranged with safety relief valve（8）With the second electronic shut-off valve（7）, in return water
Pipe（13）On be provided with the 3rd electronic shut-off valve（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721334182.1U CN207454046U (en) | 2017-10-17 | 2017-10-17 | The gas heating system of F grades of fuel engine power generation units under feed pump power frequency operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721334182.1U CN207454046U (en) | 2017-10-17 | 2017-10-17 | The gas heating system of F grades of fuel engine power generation units under feed pump power frequency operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454046U true CN207454046U (en) | 2018-06-05 |
Family
ID=62252487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721334182.1U Expired - Fee Related CN207454046U (en) | 2017-10-17 | 2017-10-17 | The gas heating system of F grades of fuel engine power generation units under feed pump power frequency operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454046U (en) |
-
2017
- 2017-10-17 CN CN201721334182.1U patent/CN207454046U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203605211U (en) | Water feeding system of boiler | |
| CN206320728U (en) | Attemperation water system of boiler superheater | |
| CN103542399B (en) | Boiler feed water system and feed water adjusting method thereof | |
| CN209263108U (en) | A kind of heat supply network draining system | |
| CN112483425B (en) | Constant-speed water supply pump pressure regulating device and operation method | |
| CN109520001A (en) | A kind of heat supply network draining system | |
| CN207454046U (en) | The gas heating system of F grades of fuel engine power generation units under feed pump power frequency operation | |
| CN109826680B (en) | Steam distribution system based on mother pipe control of different parameter grade units and application method | |
| CN201218519Y (en) | Reheating temperature-reduction auxiliary regulating mechanism for coal-gas mixed combustion boiler | |
| CN110700909B (en) | Internet surfing electric load adjusting system and adjusting method for heating Ji Re cogeneration unit | |
| CN112197252A (en) | Main steam heating system with steam supply bypass | |
| CN111237735A (en) | Emergency industrial steam supply system for realizing shutdown and non-shutdown of large coal-fired generator set | |
| CN216741635U (en) | Steam-driven water supply pump system and steam supply system of atmospheric deaerator | |
| CN216950586U (en) | Natural gas preheating system by using residual heat of residual boiler | |
| RU2528190C2 (en) | Steam gas plant | |
| CN205562169U (en) | Gas turbine test bench fuel oil system | |
| CN212777304U (en) | Temperature-reducing water system | |
| CN111156058B (en) | Method for controlling operating pressure of regenerative steam turbine | |
| CN209604098U (en) | A kind of quick start system of energy-efficient Turbo-generator Set | |
| CN104033250B (en) | Integration oxygen-enriched combusting power system | |
| CN208139244U (en) | A kind of thermal power plant boiler rises the energy-saving emission-reducing apparatus during blowing out, interim banking fire | |
| CN207647626U (en) | A kind of cycle bypath system for performance heater | |
| CN215486190U (en) | Thermal power generating unit low-pressure steam utilization system with coupled steam energy storage | |
| CN214035807U (en) | Auxiliary steam system | |
| CN108386828A (en) | Thermal power plant boiler rises the energy-saving emission-reducing apparatus during blowing out, interim banking fire |
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: 20180605 Termination date: 20181017 |