CN104132366A - Energy-saving fuel system for thermal power plant - Google Patents
Energy-saving fuel system for thermal power plant Download PDFInfo
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- CN104132366A CN104132366A CN201310251803.XA CN201310251803A CN104132366A CN 104132366 A CN104132366 A CN 104132366A CN 201310251803 A CN201310251803 A CN 201310251803A CN 104132366 A CN104132366 A CN 104132366A
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- fuel
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- fuel system
- power plants
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Abstract
The invention relates to an energy-saving fuel system for a thermal power plant. The energy-saving fuel system comprises fuel tanks, fuel supply pumps, a fuel gun and a fuel supply mains and a fuel return mains of the fuel gun. A fuel channel pressurizing device is connected between outlets of the fuel tanks and the fuel supply mains, a first adjusting valve is arranged on a pipeline between fuel outlet ends of the fuel supply pumps and a fuel outlet end of the oil channel pressurizing device, the fuel return mains is provided with a second adjusting valve, and the fuel channel pressurizing device comprises a fuel energy storage tank and a fuel pressure pump. The fuel system for the thermal power plant keeps fuel pressure stable on the premise of no spinning reserve of the fuel supply pump, energy resources are saved, and the problem that fuel temperature rises to exceed flammability point is avoided.
Description
Technical field
The present invention relates to a kind of energy saving for power plants fuel system.
Background technology
Coal fired thermal power plant fuel system is for ignition of the boiler and steady combustion.The problem existing is at present: boiler at flameholding, do not need to throw oil combustion-supporting in the situation that, fuel system still needs to maintain normal operation, to tackle the unstable combustion that may occur at any time.In fuel system, the long-term running of oil feed pump can cause very large useless energy consumption, and useless energy consumption is distributed with heat energy form, makes oil feed pump heating, finally can cause fuel oil temperature to raise, and especially summer, oil temperature often exceeded #0 bavin oil flash, and danger significantly increases.
Summary of the invention
The object of this invention is to provide a kind of energy saving for power plants fuel system, in the time that boiler combustion is stablized, still need the energy consumption waste that spinning reserve causes to raise and exceed the problem of flash-point with oil temperature in order to solve fuel system oil feed pump.
For achieving the above object, the solution of the present invention is: a kind of energy saving for power plants fuel system, comprise the female pipe of fuel feeding and the female pipe of oil return of oil tank, oil feed pump, oil gun and oil gun, between oil tank outlet and the female pipe of described fuel feeding, be connected oil circuit pressue device, on the pipeline between oil feed pump oil outlet end and described oil circuit pressue device oil outlet end, be provided with the first control valve (9), on the female pipe of oil return, be provided with the second control valve (10), described oil circuit pressue device comprises fuel oil energy storage canister (6) and fuel pressure pump (5).
Energy saving for power plants fuel system also comprises a fuel servo control system, control connection fuel pressure pump.
The fuel servo control system of energy saving for power plants fuel system is first, second control valve of control connection also.
Energy saving for power plants fuel system is connected in series non-return valve (4) in described oil circuit pressue device.
The hand-operated valve for this device of off-the-line of the each serial connection in oil circuit pressue device two ends of energy saving for power plants fuel system.
The oil feed pump two ends of energy saving for power plants fuel system connect recirculation adjustment doors.
The invention has the beneficial effects as follows: the present invention can not need under the prerequisite of spinning reserve at oil feed pump owing to having increased oil circuit pressue device, for oil circuit provides stable pressure, and then kept system oil pressure stable, and save the energy, avoid fuel oil temperature to raise and exceeded the problem of flash-point.
Further, the present invention has adopted fuel servo control system, controls fuel pressure pump, and it is stable that discontinuity is opened fuel pressure pump control system oil pressure, reaches the object of accurate control.
Further, servo-control system can also be controlled first, second control valve, better the pressure of oil circuit control.
Brief description of the drawings
Fig. 1 is system construction drawing of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
A kind of energy saving for power plants fuel system that the present invention introduces, comprise the female pipe of fuel feeding and the female pipe of oil return of oil tank, oil feed pump, oil gun and oil gun, between oil tank outlet and described oil gun fuel feeding mother pipe, be connected oil circuit pressue device, on the pipeline between oil feed pump oil outlet end and described oil circuit pressue device oil outlet end, be provided with the first control valve, on the female pipe of oil return, be provided with the second control valve, described oil circuit pressue device comprises fuel oil energy storage canister and fuel pressure pump.
As shown in Figure 1,1 is the female pipe end of oil tank outlet fuel feeding place to detailed description of the invention; 2 is stainless steel tube; 3,8 is hand-operated valve, for this energy-saving fuel servo-drive system of off-the-line; 4 is non-return valve, avoids the pressure oil in fuel oil energy storage canister 6 to be back to oil tank; 5 is small-power fuel pressure pump, is interrupted and starts, and maintains oil system before boiler and for the pressure in, the female pipe of oil return; 6 is fuel oil energy storage canister, is provided with nitrogen air bag (in the situation that oil gas is isolated, utilizing the compressibility of gas to realize the object of energy storage), after oil gun starts, maintains fast confession, oil return main-piping pressure; 7 is small-power fuel pressure pump outlet conduit, stainless steel; 9,10 is first, second control valve, and control valve adopts control valve far away; 11 is fuel oil energy storage canister and the female pipe connected pipe of fuel feeding road, adopts stainless steel, and caliber is not less than the female pipe caliber of junction fuel feeding; 12,13,14 for the oil feed pump increasing recycles adjustment doors, for coordinating main-piping pressure adjustment doors quick adjustment system oil pressure.
This energy saving for power plants fuel system has two kinds of mode of operations, a kind of pattern be stable in boiler combustion, do not need to throw oilyly when combustion-supporting, fuel system energy-saving servo pattern starts, and claims that this pattern is pressure pattern; Another kind is that boiler combustion is unstable, while needing to throw the combustion-supporting or ignition trigger of oil, and the normal circulation operational mode that fuel system energy-saving servo pattern exits.
Concrete workflow is as follows: after, oil gun stable in boiler combustion all exits, oil feed pump is out of service, closes control valve 9,10 far away, start fuel pressure pump 5, fuel pressure pump 5 is small-power compression pump, is interrupted start and stop to maintain system pressure, the each boiler pressure control valve of standard-sized sheet.Now in the female pipe of the fuel feeding from control valve 9 far away to oil gun, the female pipe of oil return from oil gun to control valve 10 far away and oil circuit pressue device, be formed with the connected system of certain pressure oil, even fuel system is in pressure pattern.Then select oil feed pump for subsequent use, by each valve in system be placed in through pattern switching tests repeatedly really allocation (this position can be in the time switching to normal circulation operational mode, after oil feed pump starts not supercurrent in the situation that, keeping system pressure stability, switch to fast normal circulation operational mode with minimum regulated quantity), carry out the preparation that switches to normal circulation operational mode while throwing oil gun;
In the time that boiler combustion is unstable, after the instruction of oil gun input is sent, start immediately selected oil feed pump for subsequent use, recycle adjustment doors and main-piping pressure adjustment doors by oil feed pump and coordinate charge oil pressure is adjusted to and the essentially identical value of energy storage canister pressure, open control valve 9 far away, close to the pressure-regulating valve of each boiler, open control valve 10 far away, open gradually again the pressure-regulating valve of each boiler, maintain system pressure stable, switch to normal circulation operational mode.
Claims (6)
1. an energy saving for power plants fuel system, comprise the female pipe of fuel feeding and the female pipe of oil return of oil tank, oil feed pump, oil gun and oil gun, it is characterized in that, between oil tank outlet and the female pipe of described fuel feeding, be connected oil circuit pressue device, on the pipeline between oil feed pump oil outlet end and described oil circuit pressue device oil outlet end, be provided with the first control valve (9), on the female pipe of oil return, be provided with the second control valve (10), described oil circuit pressue device comprises fuel oil energy storage canister (6) and fuel pressure pump (5).
2. energy saving for power plants fuel system according to claim 1, is characterized in that, also comprises a fuel servo control system, control connection fuel pressure pump.
3. energy saving for power plants fuel system according to claim 2, is characterized in that, described fuel servo control system is first, second control valve of control connection also.
4. energy saving for power plants fuel system according to claim 1, is characterized in that, is connected in series non-return valve (4) in described oil circuit pressue device.
5. energy saving for power plants fuel system according to claim 1, is characterized in that, a described hand-operated valve for this device of off-the-line of the each serial connection in oil circuit pressue device two ends.
6. energy saving for power plants fuel system according to claim 1, is characterized in that, connects recirculation adjustment doors at oil feed pump two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310251803.XA CN104132366A (en) | 2013-06-21 | 2013-06-21 | Energy-saving fuel system for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310251803.XA CN104132366A (en) | 2013-06-21 | 2013-06-21 | Energy-saving fuel system for thermal power plant |
Publications (1)
| Publication Number | Publication Date |
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| CN104132366A true CN104132366A (en) | 2014-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201310251803.XA Pending CN104132366A (en) | 2013-06-21 | 2013-06-21 | Energy-saving fuel system for thermal power plant |
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| CN (1) | CN104132366A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439895A (en) * | 2016-11-03 | 2017-02-22 | 厦门鑫烨盛能源科技有限公司 | Methanol liquid fuel supercharger for commercial kitchen |
| CN106765278A (en) * | 2017-01-22 | 2017-05-31 | 华北电力科学研究院有限责任公司 | A kind of power plant boiler fuel system and its start-up and shut-down control method |
| CN111536549A (en) * | 2020-05-08 | 2020-08-14 | 山西大学 | Leather bag type self-stabilizing device for fuel oil system |
| CN111536547A (en) * | 2020-05-08 | 2020-08-14 | 山西大学 | Spring type self-stabilizing device for fuel oil system |
Citations (5)
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| JP2007085678A (en) * | 2005-09-26 | 2007-04-05 | Chugoku Electric Power Co Inc:The | Fuel system for steam power generation facility, and its operating method |
| CN101055088A (en) * | 2007-06-18 | 2007-10-17 | 中节环(北京)科技有限公司 | Energy-storing pressure-stabilizing oil-supply device dedicated for gasified small oil gun ignition |
| CN201954575U (en) * | 2010-12-10 | 2011-08-31 | 上海锅炉厂有限公司 | Fuel oil system capable of keeping steady pressure |
| CN202613486U (en) * | 2012-03-19 | 2012-12-19 | 蒋平锁 | Gas energy storage type safe and energy-saving pressure-stabilizing boiler oil supply system |
| CN202955718U (en) * | 2012-10-24 | 2013-05-29 | 石福军 | Igniting combustion-supporting oil supply system of coal-powder boiler of thermal power plant |
-
2013
- 2013-06-21 CN CN201310251803.XA patent/CN104132366A/en active Pending
Patent Citations (5)
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| JP2007085678A (en) * | 2005-09-26 | 2007-04-05 | Chugoku Electric Power Co Inc:The | Fuel system for steam power generation facility, and its operating method |
| CN101055088A (en) * | 2007-06-18 | 2007-10-17 | 中节环(北京)科技有限公司 | Energy-storing pressure-stabilizing oil-supply device dedicated for gasified small oil gun ignition |
| CN201954575U (en) * | 2010-12-10 | 2011-08-31 | 上海锅炉厂有限公司 | Fuel oil system capable of keeping steady pressure |
| CN202613486U (en) * | 2012-03-19 | 2012-12-19 | 蒋平锁 | Gas energy storage type safe and energy-saving pressure-stabilizing boiler oil supply system |
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Non-Patent Citations (1)
| Title |
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| 黎富彬等: "锅炉燃油系统改进", 《四川电力技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106439895A (en) * | 2016-11-03 | 2017-02-22 | 厦门鑫烨盛能源科技有限公司 | Methanol liquid fuel supercharger for commercial kitchen |
| CN106765278A (en) * | 2017-01-22 | 2017-05-31 | 华北电力科学研究院有限责任公司 | A kind of power plant boiler fuel system and its start-up and shut-down control method |
| CN106765278B (en) * | 2017-01-22 | 2023-10-24 | 华北电力科学研究院有限责任公司 | Boiler fuel system of thermal power plant and start-stop control method thereof |
| CN111536549A (en) * | 2020-05-08 | 2020-08-14 | 山西大学 | Leather bag type self-stabilizing device for fuel oil system |
| CN111536547A (en) * | 2020-05-08 | 2020-08-14 | 山西大学 | Spring type self-stabilizing device for fuel oil system |
| CN111536547B (en) * | 2020-05-08 | 2021-05-14 | 山西大学 | Spring type self-stabilizing device for fuel oil system |
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Application publication date: 20141105 |